阅读说明：本技术 电子设备 (Electronic device ) 是由 吴小浦 于 2020-12-29 设计创作，主要内容包括：本申请提供了一种电子设备,包括壳体、第一天线模组及第二天线模组,壳体包括呈对角设置的第一拐角部和第二拐角部；所述第一天线模组的至少部分设于或靠近所述第一拐角部；所述第一天线模组包括第一辐射单元,所述第一辐射单元用于收发第一电磁波信号和在待检测主体靠近时产生第一感应信号；所述第二天线模组的至少部分设于或靠近所述第二拐角部,所述第二天线模组包括第二辐射单元,所述第二辐射单元用于收发第二电磁波信号和在所述待检测主体靠近时产生第二感应信号。本申请提供的电子设备能提高通信质量及利于整机小型化。(The application provides electronic equipment, which comprises a shell, a first antenna module and a second antenna module, wherein the shell comprises a first corner part and a second corner part which are arranged diagonally; at least part of the first antenna module is arranged at or close to the first corner part; the first antenna module comprises a first radiation unit, and the first radiation unit is used for receiving and transmitting a first electromagnetic wave signal and generating a first induction signal when a main body to be detected approaches; at least part of the second antenna module is arranged at or close to the second corner part, the second antenna module comprises a second radiation unit, and the second radiation unit is used for receiving and transmitting a second electromagnetic wave signal and generating a second induction signal when the main body to be detected is close to the main body to be detected. The application provides an electronic equipment can improve communication quality and do benefit to the complete machine miniaturization.)

1. An electronic device, comprising:

a housing including a first corner portion and a second corner portion diagonally disposed;

a first antenna module, at least a part of which is arranged at or close to the first corner part; the first antenna module comprises a first radiation unit, and the first radiation unit is used for receiving and transmitting a first electromagnetic wave signal and generating a first induction signal when a main body to be detected approaches; and

and at least part of the second antenna module is arranged at or close to the second corner part, and the second antenna module comprises a second radiation unit which is used for receiving and transmitting a second electromagnetic wave signal and generating a second induction signal when the main body to be detected is close to the second antenna module.

2. The electronic device according to claim 1, wherein the frequency band of the first electromagnetic wave signal at least covers a GPS-L1 frequency band, a WiFi2.4G frequency band, an LTE-MHB frequency band, an NR-UHB frequency band, and a WiFi5G frequency band; and/or the frequency band of the second electromagnetic wave signal at least covers an LTE-LB frequency band, an LTE-MHB frequency band, an NR-LB frequency band, an NR-MHB frequency band and an NR-UHB frequency band.

3. The electronic device according to claim 2, wherein the housing includes a first side, a second side, a third side, and a fourth side connected in sequence, the first side being disposed opposite to the third side, the second side being disposed opposite to the fourth side, a connection between the first side and the second side being the first corner portion, and a connection between the third side and the fourth side being the second corner portion;

the first antenna module comprises a first antenna unit, a second antenna unit and a third antenna unit which are sequentially arranged, the first antenna unit comprises a first radiating body, the second antenna unit comprises a second radiating body, the third antenna unit comprises a third radiating body, the first radiating body is in capacitive coupling with the second radiating body, the second radiating body is in capacitive coupling with the third radiating body, one part of the second radiating body is arranged on or close to the first edge, the other part of the second radiating body is arranged on or close to the second edge, the first radiating body, the second radiating body and at least one of the third radiating bodies are used for generating the first induction signal when the main body to be detected is close to the first induction signal.

4. The electronic device according to claim 3, wherein the electromagnetic wave signals transmitted and received by the first antenna unit cover at least an LTE-MHB band, an NR-MHB band, and an NR-UHB band; and/or the electromagnetic wave signals transmitted and received by the second antenna unit at least cover a GPS-L1 frequency band, a WiFi2.4G frequency band, an LTE-MHB frequency band and an NR-MHB frequency band; and/or the electromagnetic wave signals transmitted and received by the third antenna unit at least cover an NR-UHB frequency band and a WiFi5G frequency band.

5. The electronic device according to claim 3, wherein the second antenna module includes a fourth antenna element, a fifth antenna element and a sixth antenna element arranged in sequence, the fourth antenna element includes a fourth radiator, the fifth antenna element includes a fifth radiator, the sixth antenna element includes a sixth radiator, the fourth radiator and the fifth radiator are capacitively coupled, and the fifth radiator and the sixth radiator are capacitively coupled; one part of the fifth radiator is arranged on or close to the third edge, and the other part of the fifth radiator is arranged on or close to the fourth edge; at least one of the fourth radiator, the fifth radiator and the sixth radiator is used for generating the second sensing signal when the body to be detected approaches.

6. The electronic device according to claim 5, wherein the electromagnetic wave signals transmitted and received by the fourth antenna unit at least cover an LTE-MHB frequency band, an LTE-UHB frequency band, an NR-MHB frequency band, and an NR-UHB frequency band; the electromagnetic wave signals transmitted and received by the fifth antenna unit at least cover an LTE-LB frequency band; the electromagnetic wave signals transmitted and received by the sixth antenna unit at least cover an LTE-MHB frequency band, an LTE-UHB frequency band, an NR-MHB frequency band and an NR-UHB frequency band.

7. The electronic device of claim 5, wherein the first radiator and the fourth radiator are both first edge radiators, and the first antenna element and the fourth antenna element are both first edge antenna elements; the first edge radiator comprises a first grounding end, a first coupling end and a first feed point arranged between the first grounding end and the first coupling end; the first edge antenna unit further comprises a first frequency-selecting filter circuit and a first signal source, wherein one end of the first frequency-selecting filter circuit is electrically connected with the first feed point, and the first signal source is electrically connected with the other end of the first frequency-selecting filter circuit.

8. The electronic device of claim 7, wherein the second radiator and the fifth radiator are both intermediate radiators; the second antenna unit and the fifth antenna unit are both middle antenna units; the intermediate radiator further comprises a second coupling end, a coupling point, a second feed point and a third coupling end which are sequentially arranged; the second coupling end and the first coupling end are capacitively coupled through a first gap; the middle antenna unit further comprises a first frequency modulation circuit, a second frequency-selecting filter circuit and a second signal source, one end of the first frequency modulation circuit is electrically connected with the coupling point, and the other end of the first frequency modulation circuit is grounded; one end of the second frequency-selecting filter circuit is electrically connected with the second feed point, the second signal source is electrically connected with the other end of the second frequency-selecting filter circuit, and the other end of the second frequency-selecting filter circuit is grounded.

9. The electronic device of claim 8, wherein the third radiator and the sixth radiator are both second edge radiators, and the third antenna unit and the sixth antenna unit are both second edge antenna units;

the second edge radiator further comprises a fourth coupling end, a third feed point and a second grounding end which are sequentially arranged, and the fourth coupling end and the third coupling end are capacitively coupled through a second gap;

the second edge antenna unit further comprises a third frequency-selecting filter circuit and a third signal source, wherein one end of the third frequency-selecting filter circuit is electrically connected with the third feed point, the third signal source is electrically connected with the other end of the third frequency-selecting filter circuit, and the other end of the third frequency-selecting filter circuit is grounded.

10. The electronic device of claim 9, wherein the first antenna element is configured to generate a first resonance mode and a second resonance mode, wherein a frequency band of the first resonance mode and a frequency band of the second resonance mode collectively cover 2 GHz-4 GHz, the first resonance mode is an 1/4-wavelength fundamental mode in which the first antenna element operates from the first ground terminal to the first coupling terminal, and the second resonance mode is an 1/4-wavelength fundamental mode in which the first antenna element operates from the first feeding point to the first coupling terminal; and/or the presence of a gas in the gas,

the second antenna unit is used for generating a third resonance mode and a fourth resonance mode; the frequency bands of the third resonant mode and the fourth resonant mode jointly cover 1.5 GHz-3 GHz, and the third resonant mode is an 1/4-wavelength fundamental mode of the second antenna unit working from the coupling point to the third coupling end; the fourth resonant mode is an 1/4-wavelength fundamental mode of the second antenna element working from the second feeding point to the third coupling end; and/or the presence of a gas in the gas,

the third antenna unit is used for generating a fifth resonance mode and a sixth resonance mode; a second radiator between the coupling point and the third coupling end is used for generating a seventh resonant mode under the excitation of the radio-frequency signal transmitted by the third signal source; the frequency bands of the fifth resonant mode, the sixth resonant mode and the seventh resonant mode collectively cover 3GHz to 6.5GHz, and the fifth resonant mode is an 1/8 wavelength mode in which the third antenna unit works from the second ground terminal to the fourth coupling terminal; the sixth resonant mode is an 1/4-wavelength fundamental mode in which the third antenna element operates from the second ground terminal to the fourth coupling terminal; the seventh resonant mode is an 1/2 wavelength mode of the second antenna element operating from the coupling point to the third coupling end.

11. The electronic device according to claim 9, wherein the fourth antenna element is configured to generate a first sub-resonant mode, a second sub-resonant mode, a third sub-resonant mode, and a fourth sub-resonant mode, wherein the first sub-resonant mode is a fundamental mode of the fourth antenna element operating in the first ground terminal to the first coupling terminal; the second sub-resonant mode is a fundamental mode of the fourth antenna unit working between the coupling point and the second coupling end; the third sub-resonant mode is a fundamental mode of the fourth antenna element working from the first feeding point to the first coupling end; the fourth sub-resonance mode is a 3-order mode in which the fourth antenna unit operates from the first ground terminal to the first coupling terminal, and resonance frequencies of the first sub-resonance mode, the second sub-resonance mode, the third sub-resonance mode, and the fourth sub-resonance mode sequentially increase; and/or the presence of a gas in the gas,

the fifth antenna unit is used for generating a fifth sub-resonant mode when working in a fundamental mode from the coupling point to the third coupling end; and/or the sixth antenna unit is configured to generate a plurality of sixth sub-resonant modes, where at least one of the sixth sub-resonant modes is generated by capacitively coupling the fifth radiator and the sixth radiator.

12. The electronic device of claim 3, wherein the first radiating element comprises at least one of the first radiator, the second radiator, and the third radiator; the electronic equipment further comprises a first isolation device, a second isolation device and a proximity sensing device, wherein the first isolation device is electrically connected with the first radiation unit and is used for isolating a first induction signal generated when the body to be detected approaches the first radiation unit and conducting a first electromagnetic wave signal transmitted and received by the first radiation unit; one end of the second isolation device is electrically connected between the first radiation unit and the first isolation device or electrically connected with the first radiation unit, and the second isolation device is used for isolating electromagnetic wave signals received and transmitted by the first radiation unit and conducting the first induction signals; the proximity sensing device is electrically connected to the other end of the second isolation device and used for sensing the magnitude of the first induction signal.

13. The electronic device according to claim 12, wherein the first isolation device includes a first sub-isolation device, and the first sub-isolation device is configured to isolate a first sub-sensing signal generated when the body to be detected approaches the second radiator and to conduct an electromagnetic wave signal transmitted and received by the second radiator; the second isolation device comprises a second sub-isolation device, one end of the second sub-isolation device is electrically connected between the second radiator and the first sub-isolation device or electrically connected with the second radiator, and the second sub-isolation device is used for isolating the electromagnetic wave signals received and transmitted by the second radiator and conducting the first sub-induction signals; the proximity sensing device comprises a first sub sensing device which is electrically connected to the other end of the second sub isolation device and used for sensing the magnitude of the first sub sensing signal.

14. The electronic device according to claim 13, wherein the first isolation device includes a third sub-isolation device electrically connected to the first radiator for isolating a second sub-sensing signal generated when the body to be detected approaches the first radiator and conducting the electromagnetic wave signal received and transmitted by the first radiator.

15. The electronic device of claim 14, wherein the second sub sensing device is configured to generate a third sub sensing signal by the second radiator through a coupling effect of the first radiator and the second radiator, and the first sub sensing device is further configured to sense a magnitude of the third sub sensing signal.

16. The electronic device according to claim 14, wherein the second isolation device comprises a fourth sub-isolation device, one end of the fourth sub-isolation device is electrically connected between the first radiator and the third sub-isolation device or is electrically connected to the first radiator, and is configured to isolate the electromagnetic wave signal received and transmitted by the first radiator and conduct the second sub-sensing signal, and the other end of the fourth sub-isolation device is configured to output the second sub-sensing signal;

the proximity sensing device further comprises a second sub-sensing device, wherein the second sub-sensing device is electrically connected to the other end of the fourth sub-isolation device and is used for sensing the magnitude of the second sub-sensing signal; alternatively, the first and second electrodes may be,

the other end of the fourth sub-isolation device is electrically connected with the first sub-sensing device, the first radiator and the second radiator generate a coupling induction signal when being capacitively coupled, and the first sub-sensing device is further used for inducing the variation of the coupling induction signal when the body to be detected is close to the first radiator and/or the second radiator.

17. The electronic device according to any one of claims 1 to 16, further comprising a controller and a functional device, wherein the controller is electrically connected to the first radiation unit, the second radiation unit and the functional device, and the controller is configured to determine an operating state of the electronic device according to a magnitude of the first sensing signal, a magnitude of the second sensing signal and an operating state of the functional device, and adjust power of the first antenna module and the second antenna module according to the operating state of the electronic device, or control on and off of the first antenna module and the second antenna module, wherein the functional device includes a display screen and a receiver.

18. The electronic device of claim 17, wherein the controller is further configured to determine that the electronic device is in a state close to the head of the subject to be detected and control the power of the first antenna module and the power of the second antenna module to decrease according to the detection that the first sensing signal and the second sensing signal are both greater than a preset threshold and the receiver is in an operating state; and/or the presence of a gas in the gas,

the controller is further configured to determine that the electronic device is in a carrying state and control the first antenna module and the second antenna module to reduce power when the first sensing signal and the second sensing signal are detected to be both greater than the preset threshold and the display screen is in an undisplayed state.

19. The electronic device according to any one of claims 3-16, further comprising at least one third antenna module and a controller, wherein the third antenna module is disposed at or near at least one of a connection between the second side and the third side, a connection between the fourth side and the first side, the second side, the third side, and the fourth side;

the controller is further used for judging that the edge or the corner where the second antenna module is located is in a holding state when the second induction signal is detected to be larger than a preset threshold value and the first induction signal is detected to be smaller than the preset threshold value, and controlling the power of the second antenna module to be increased by adjusting a frequency modulation circuit in the second antenna module; and/or controlling the third antenna module to start working or increase power.

20. The electronic device of claim 19, further comprising at least one fourth antenna module disposed at or near at least one of a junction between the second side and the third side, a junction between the fourth side and the first side, the second side, the third side, and the fourth side;

the controller is further configured to determine that edges or corners where the first antenna module and the second antenna module are located are in a holding state when the first sensing signal and the second sensing signal are detected to be greater than a preset threshold, and control the power increase of the first antenna module and the power increase of the second antenna module by adjusting frequency modulation circuits in the first antenna module and the second antenna module respectively; and/or controlling the third antenna module to start working or increase power, and controlling the fourth antenna module to start working or increase power.

Technical Field

The present application relates to the field of communications technologies, and in particular, to an electronic device.

Background

With the development of technology, electronic devices such as mobile phones and the like with communication functions have higher popularity and higher functions. An antenna module is generally included in an electronic device to implement a communication function of the electronic device. How to promote miniaturization of electronic equipment while improving communication quality of the electronic equipment becomes a technical problem to be solved.

Disclosure of Invention

The application provides an electronic device which improves communication quality and is beneficial to miniaturization of a whole machine.

An electronic device provided in an embodiment of the present application includes:

a housing including a first corner portion and a second corner portion diagonally disposed;

a first antenna module, at least a part of which is arranged at or close to the first corner part; the first antenna module comprises a first radiation unit, and the first radiation unit is used for receiving and transmitting a first electromagnetic wave signal and generating a first induction signal when a main body to be detected approaches; and

and at least part of the second antenna module is arranged at or close to the second corner part, and the second antenna module comprises a second radiation unit which is used for receiving and transmitting a second electromagnetic wave signal and generating a second induction signal when the main body to be detected is close to the second antenna module.

According to the electronic equipment provided by the embodiment of the application, the first antenna module and the second antenna module are respectively arranged on the two corners of the electronic equipment, the first antenna module and the second antenna module not only can receive and transmit electromagnetic wave signals, but also can realize the approach detection of the main body to be detected in a larger range by using a small number of antenna modules at the corner parts arranged at the two opposite corners, so that the function integration level of the antenna modules is improved, the communication quality of the electronic equipment is improved, and the overall miniaturization of the electronic equipment can be promoted; the first antenna module arranged at the first corner part and the second antenna module arranged at the second corner part are combined to at least cover the detection that the main body to be detected approaches around the electronic equipment, so that the all-dimensional detection that the main body to be detected approaches is realized, the intelligent detection efficiency of the electronic equipment for the approach of the main body to be detected is improved, the working state of the electronic equipment is effectively judged, the favorable response is conveniently made to the working state of the electronic equipment, and the intelligent characteristic of the electronic equipment is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;

FIG. 2 is an exploded schematic view of the electronic device provided in FIG. 1;

fig. 3 is a schematic structural diagram of a first antenna assembly provided in an embodiment of the present application;

fig. 4 is a schematic structural diagram of a second antenna assembly provided in an embodiment of the present application and disposed in a housing;

fig. 5 is a schematic structural diagram of a third antenna assembly provided in an embodiment of the present application and disposed in a housing;

fig. 6 is a schematic structural diagram of a fourth antenna assembly provided in the embodiment of the present application and disposed in a housing;

fig. 7 is a schematic structural diagram of a fifth antenna assembly provided in an embodiment of the present application and disposed in a housing;

fig. 8 is a schematic structural diagram of a first antenna module according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a sixth antenna assembly provided in an embodiment of the present application and disposed in a housing;

fig. 10 is a schematic structural diagram of a second antenna module according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of a first antenna module provided in fig. 9;

fig. 12 is a schematic structural diagram of a first frequency-selective filter circuit according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a second first frequency-selective filter circuit according to an embodiment of the present application;

fig. 14 is a schematic structural diagram of a third first frequency-selective filter circuit according to an embodiment of the present application;

fig. 15 is a schematic structural diagram of a fourth first frequency-selective filter circuit according to an embodiment of the present application;

fig. 16 is a schematic structural diagram of a fifth first frequency-selective filter circuit according to an embodiment of the present application;

fig. 17 is a schematic structural diagram of a sixth first frequency-selective filter circuit according to an embodiment of the present application;

fig. 18 is a schematic structural diagram of a seventh first frequency-selective filter circuit according to an embodiment of the present application;

fig. 19 is a schematic structural diagram of an eighth first frequency-selective filter circuit according to an embodiment of the present application;

fig. 20 is a schematic structural diagram of a second first antenna module provided in fig. 9;

fig. 21 is a schematic structural diagram of a third antenna module provided in fig. 9;

fig. 22 is an equivalent circuit diagram of the first antenna element provided in fig. 11;

fig. 23 is a return loss plot for the resonant mode of operation of the first antenna element provided in fig. 11;

fig. 24 is an equivalent circuit diagram of the second antenna element provided in fig. 11;

fig. 25 is a return loss plot for the resonant mode of operation of the second antenna element provided in fig. 11;

fig. 26 is an equivalent circuit diagram of the third antenna element provided in fig. 11;

fig. 27 is a return loss plot for the resonant mode of operation of the third antenna element provided in fig. 11;

fig. 28 is a schematic structural diagram of a fourth antenna module provided in fig. 9;

fig. 29 is a schematic structural diagram of a fifth first antenna module provided in fig. 9;

fig. 30 is a schematic structural diagram of a sixth first antenna module provided in fig. 9;

fig. 31 is a schematic structural diagram of a seventh first antenna module provided in fig. 9;

fig. 32 is a schematic structural diagram of an eighth first antenna module provided in fig. 9;

fig. 33 is a schematic structural diagram of the first second antenna module provided in fig. 10;

fig. 34 is an equivalent circuit diagram of the fourth antenna element provided in fig. 33;

fig. 35 is a return loss plot for the resonant mode of operation of the fourth antenna element provided in fig. 33;

fig. 36 is an equivalent circuit diagram of the fifth antenna element provided in fig. 33;

fig. 37 is a return loss plot for the resonant mode of operation of the fifth antenna element provided in fig. 33;

fig. 38 is an equivalent circuit diagram of the sixth antenna element provided in fig. 33;

fig. 39 is a return loss plot for the resonant mode of operation of the sixth antenna element provided in fig. 33;

fig. 40 is a schematic structural diagram of a second antenna module provided in fig. 10;

fig. 41 is a schematic structural diagram of a third second antenna module provided in fig. 10;

fig. 42 is a schematic structural diagram of a fourth antenna module provided in fig. 10;

fig. 43 is a schematic structural diagram of the fifth second antenna module provided in fig. 10.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. The embodiments listed in the present application may be appropriately combined with each other.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device 1000 according to an embodiment of the present disclosure. The electronic device 1000 may be a telephone, a television, a tablet computer, a mobile phone, a camera, a personal computer, a notebook computer, an in-vehicle device, an earphone, a watch, a wearable device, a base station, an in-vehicle radar, a Customer Premise Equipment (CPE), or other devices capable of transmitting and receiving electromagnetic wave signals. Taking the electronic device 1000 as a mobile phone as an example, for convenience of description, the electronic device 1000 is defined with reference to a first viewing angle, a width direction of the electronic device 1000 is defined as an X direction, a length direction of the electronic device 1000 is defined as a Y direction, and a thickness direction of the electronic device 1000 is defined as a Z direction. The direction indicated by the arrow is the forward direction.

Referring to fig. 2, an electronic device 1000 according to an embodiment of the present disclosure includes a display 300 and a housing 500 covering the display 300. The housing 500 includes a middle frame 501 and a rear cover 502 which are fitted to each other. The rear cover 502 is located on a side of the middle frame 501 facing away from the display screen 300. The middle frame 501 includes a middle plate and a frame surrounding the middle plate. The middle plate is used for mounting electronic components such as the main board 200, the battery 400 and the like. The edge, the frame and the back cover 502 of the display screen 300 are connected in sequence. Wherein, the frame and the rear cover 502 can be integrally formed.

The electronic device 1000 also includes an antenna assembly 100. At least a portion of the antenna assembly 100 is disposed on the motherboard 200 of the electronic device 1000 or electrically connected to the motherboard 200 of the electronic device 1000. The antenna assembly 100 is used for transceiving radio frequency signals to implement a communication function of the electronic device 1000.

Referring to fig. 3, the antenna assembly 100 includes at least a first antenna module 110 and a second antenna module 120.

Referring to fig. 3, the housing 500 includes a first corner 510 and a second corner 520 diagonally disposed. Specifically, the housing 500 includes a first side 51, a second side 52, a third side 53, and a fourth side 54 connected in sequence. The first side 51 is disposed opposite the third side 53. The second side 52 is disposed opposite the fourth side 54. The junction between the first side 51 and the second side 52 is a first corner 510. The junction between the third side 53 and the fourth side 54 is a second corner 520.

Specifically, the first corner 510 and the second corner 520 are located on the outer surface of the bezel. Referring to fig. 3, the first corner portion 510 may be an upper left corner of the case 500, and the second corner portion 520 is a lower right corner of the case 500. In other embodiments, the first corner 510 may be the upper right corner of the housing 500 and the second corner 520 is the lower left corner of the housing 500; alternatively, the first corner 510 may be a lower left corner of the case 500, and the second corner 520 may be an upper right corner of the case 500; alternatively, the first corner 510 may be a lower right corner of the case 500, and the second corner 520 may be an upper left corner of the case 500.

Referring to fig. 3, at least a portion of the first antenna module 110 is disposed at or near the first corner portion 510. The first antenna module 110 includes a first radiation unit 113. The first radiation unit 113 is configured to receive and transmit a first electromagnetic wave signal and generate a first sensing signal when the to-be-detected body approaches, where the first sensing signal is used to feed back that the to-be-detected body approaches the first radiation unit 113. Wherein the subject to be detected includes, but is not limited to, a human body. In this embodiment, the subject to be detected is a human body.

Specifically, referring to fig. 3 and 4, the first radiating element 113 may be located at the first corner portion 510. Specifically, the first radiation unit 113 may be integrated on the frame and/or the battery cover, and disposed at the first corner portion 510 or near the first corner portion 510; alternatively, the first radiation unit 113 is located in the space surrounded by the housing 500 and located at or near the first corner portion 510, for example, the first radiation unit 113 is formed on a flexible circuit board and attached to the inner side of the first corner portion 510. In this embodiment, a part of the first radiating element 113 is disposed on the first side 51, and another part is disposed on the second side 52.

Referring to fig. 3 and 4, at least a portion of the second antenna module 120 is disposed at or near the second corner portion 520. The second antenna module 120 includes a second radiation unit 123. The second radiation unit 123 is configured to receive and transmit a second electromagnetic wave signal and generate a second sensing signal when the body to be detected approaches.

Specifically, referring to fig. 3 and 4, the second radiation unit 123 may be located at the second corner portion 520, and specifically, the second radiation unit 123 may be integrated on the frame and/or the battery cover and located at the second corner portion 520 or close to the second corner portion 520; alternatively, the second radiation unit 123 is located in the space surrounded by the housing 500 and located at or near the second corner portion 520, for example, the second radiation unit 123 is molded on the flexible circuit board and attached to the inner side of the second corner portion 520. In this embodiment, a part of the second radiation element 123 is disposed on the third side 53, and another part is disposed on the fourth side 54.

Referring to fig. 1 and 2, the electronic device 1000 includes a front surface, a back surface, a left side surface, a right side surface, an upper side surface and a lower side surface. Wherein, the front face is arranged opposite to the back face. The front surface is the surface where the display screen 300 is located and is also the surface facing the forward direction of the Z axis, the back surface is the surface where the rear cover 502 is located and is also the surface facing the reverse direction of the Z axis, and the left side surface and the right side surface are respectively the surface facing the forward direction of the X axis and the surface facing the reverse direction of the X axis. The upper side surface is a surface facing to the positive direction of the Y axis, and the lower side surface is a surface facing to the negative direction of the Y axis.

When the first radiation unit 113 is disposed at the first corner portion 510, the first radiation unit 113 can sense a subject to be detected approaching from the front, the back, the left side, the upper side; when the second radiation unit 123 is disposed at the second corner portion 520, the second radiation unit 123 can sense the body to be detected approaching from the front, back, right side, and lower side. Therefore, by respectively arranging the first radiation unit 113 and the second radiation unit 123 at the first corner 510 and the second corner 520, the body to be detected approaching from the front, the back, the left side, the right side, the upper side and the lower side can be sensed, so that the body to be detected approaching the electronic device 1000 can be sensed in an all-around manner within a spherical range by arranging fewer antenna assemblies 100, and the sensing accuracy of the electronic device 1000 to the body to be detected is improved.

According to the electronic device 1000 provided by the embodiment of the application, the first antenna module 110 and the second antenna module 120 are respectively arranged on the two corners of the electronic device 1000, the first antenna module 110 and the second antenna module 120 not only transmit and receive electromagnetic wave signals, but also can realize proximity detection of a main body to be detected in a larger range by using a small number of antenna assemblies 100 at the two diagonally arranged corners, so that the function integration level of the antenna assemblies 100 is improved, the communication quality of the electronic device 1000 is improved, and the overall miniaturization of the electronic device 1000 is promoted; because the first antenna module 110 disposed at the first corner portion 510 and the second antenna module 120 disposed at the second corner portion 520 are combined to cover at least 6 surfaces (6 surfaces include upper, lower, left, right, front, and rear surfaces) of the electronic device 1000 for proximity detection of the body to be detected, the all-around detection of the proximity of the body to be detected is realized, the intelligent detection efficiency of the electronic device 1000 for the proximity of the body to be detected is improved, the working state of the electronic device 1000 is effectively judged, a favorable response is made to the working state of the electronic device 1000, and the intelligent characteristic of the electronic device 1000 is improved.

Optionally, the frequency bands radiated by the first antenna module 110 and the second antenna module 120 may be the same or different. In this embodiment, the first antenna module 110 and the second antenna module 120 radiate different frequency bands. The radiation structures of the first antenna module 110 and the second antenna module 120 may be the same or different.

Specifically, the frequency band of the first electromagnetic wave signal at least covers a GPS-L1 frequency band, a WiFi2.4G frequency band, an LTE-MHB frequency band, an NR-UHB frequency band and a WiFi5G frequency band; and/or the frequency band of the second electromagnetic wave signal at least covers an LTE-LB frequency band, an LTE-MHB frequency band, an NR-LB frequency band, an NR-MHB frequency band and an NR-UHB frequency band. In other words, the electromagnetic waves transmitted and received by the first antenna module 110 cover the GPS, WiFi, 4G, and 5G application frequency bands. The electromagnetic waves transmitted and received by the second antenna module 120 cover the application frequency bands of 4G, 5G, such as low frequency, medium-high frequency, and ultrahigh frequency. The first antenna module 110 and the second antenna module 120 are commonly disposed on the electronic device 1000, so that the electronic device 1000 can cover low-frequency, medium-high-frequency, and ultrahigh-frequency communication bands of GPS, WiFi, and 4G/5G. Therefore, the electronic device 1000 provided by the embodiment of the present application can set the first antenna module 110 and the second antenna module 120 at the first corner portion 510 and the second corner portion 520, and design the structures of the first antenna module 110 and the second antenna module 120, so that the first antenna module 110 and the second antenna module 120 can cover the low-frequency, medium-high-frequency and ultrahigh-frequency communication bands of the common GPS, WiFi and 4G/5G, so that the electronic device 1000 has high function integration level, a large detection range of a main body to be detected, high detection precision and large antenna signal coverage.

The electronic device 1000 further includes a controller (not shown) electrically connected to the first radiation unit 113 and the second radiation unit 123. The controller is configured to determine whether the body to be detected is close to the electronic device 1000 according to the magnitude of the first sensing signal and the magnitude of the second sensing signal. The first sensing signal is not specifically limited, and the first sensing signal may be a current signal, a voltage signal, or the like.

Specifically, when the controller detects that the first sensing signal and the second sensing signal are both smaller than the preset threshold, the controller may determine that the peripheral side of the electronic device 1000 is not close to the main body to be detected. The preset threshold value is not specifically limited, and the preset threshold value can be an induction signal generated by the radiation unit when the distance between the main body to be detected and the radiation unit is 5 cm.

When the controller detects that the first sensing signal is greater than the preset threshold and the second sensing signal is smaller than the preset threshold, the controller may determine that the first side 51 and the second side 52 where the first antenna module 110 of the electronic device 1000 is located are close to the detected subject, and the third side 53 and the fourth side 54 where the second antenna module 120 is located are not close to the detected subject, which indicates that the side where the first antenna module 110 of the electronic device 1000 is located is in the one-hand holding state. When the controller detects that the first sensing signal is smaller than the preset threshold and the second sensing signal is greater than the preset threshold, the controller may determine that the third side 53 and the fourth side 54 where the second antenna module 120 of the electronic device 1000 is located have the body approach to be detected, and the first side 51 and the second side 52 where the first antenna module 110 is located do not have the body approach to be detected, which indicates that the side where the second antenna module 120 of the electronic device 1000 is located is in the one-hand holding state at this time. When the controller detects that the first sensing signal and the second sensing signal are both greater than the preset threshold, the controller may determine that the electronic device 1000 is in a two-hand holding state at this time.

After the controller determines that the electronic device 1000 is in the one-handed holding state or the two-handed holding state, the antenna assembly 100 switched to the unshielded position may operate to reduce the influence of the held antenna assembly 100 on the communication quality, switch the antenna assembly 100 intelligently, and improve the intelligence of the electronic device 1000.

In this embodiment, the electronic device 1000 further includes a functional device (not shown). The controller is electrically connected to the functional device. The controller is configured to determine a working state of the electronic device 1000 according to the magnitude of the first sensing signal, the magnitude of the second sensing signal, and the working state of the functional device, and adjust the power of the first antenna module 110 and the power of the second antenna module 120 according to the working state of the electronic device 1000, or control the first antenna module 110 and the second antenna module 120 to be turned on or turned off. The functional devices include a display 300 and a receiver (not shown).

Optionally, when the controller detects that the first sensing signal and the second sensing signal are both greater than the preset threshold, and the receiver is in the working state, the controller determines that the positions of the first antenna module 110 and the second antenna module 120 are both close to the detected subject, and meanwhile, the receiver is in the working state, which indicates that the electronic device 1000 is in the state close to the head of the detected subject, that is, the head of the human body is close to the electronic device 1000 and makes a call, at this time, the controller may control the powers of the first antenna module 110 and the second antenna module 120 to be both reduced, so as to reduce the specific absorption rate of the head of the human body to the electromagnetic waves, and further improve the safety of the electronic device 1000.

Optionally, when the controller detects that the first sensing signal and the second sensing signal are both greater than the preset threshold and the display screen 300 is in the non-display state, the controller determines that the positions of the first antenna module 110 and the second antenna module 120 are both close to the main body to be detected, and meanwhile, the display screen 300 is in the non-display state, which indicates that the electronic device 1000 may be in the carrying state, where the carrying state includes but is not limited to a pocket of a garment accommodated in the main body to be detected; the portable bag is accommodated in a schoolbag, a waist bag, a mobile phone bag and the like which are close to the main body to be detected; the electronic equipment can also be worn on the body to be detected through a rope, a wrist strap and the like. At this time, the controller may control the power of the first antenna module 110 and the power of the second antenna module 120 to be reduced, so as to reduce the electromagnetic radiation of the electronic device 1000 to the human body, reduce the specific absorption rate of the head of the human body to the electromagnetic waves, and further improve the safety of the electronic device 1000. In this embodiment, whether the receiver is in the working state can be further detected, and if the receiver is in the non-working state, it can be directly determined that the electronic device 1000 is in the state of being accommodated in the pocket of the main body to be detected. If the receiver is in the working state, it can be determined that the electronic device 1000 may be in the pocket state or the calling state, and at this time, the controller may control the power of the first antenna module 110 and the power of the second antenna module 120 to be reduced.

Optionally, referring to fig. 5, the electronic device 1000 further includes at least one third antenna module 130. The radiation frequency band of the third antenna module 130 and the radiation frequency band of the second antenna module 120 may be completely the same, partially overlapped or not overlapped. Alternatively, the third antenna module 130 may have the same structure as the second antenna module 120. In this embodiment, the radiation frequency band of the third antenna module 130 at least partially coincides with the radiation frequency band of the second antenna module 120.

Referring to fig. 5, the third antenna module 130 is spaced apart from the second antenna module 120. For example, the third antenna module 130 is disposed at or near the connection between the fourth side 54 and the first side 51. In other embodiments, the third antenna module 130 is disposed at or near at least one of the connection between the second side 52 and the third side 53, the first side 51, the second side 52, the third side 53, and the fourth side 54.

In another embodiment, referring to fig. 6, the number of the third antenna modules 130 may be multiple, one third antenna module 130 is disposed at the connection between the fourth side 54 and the first side 51, and another third antenna module 130 is disposed at the connection between the second side 52 and the third side 53.

The controller is further configured to determine that the edge or the corner where the second antenna module 120 is located is in the holding state when the second sensing signal is detected to be greater than the preset threshold and the first sensing signal is detected to be smaller than the preset threshold, at this time, the controller may control the power of the second antenna module 120 to increase by adjusting the frequency modulation circuit in the second antenna module 120, so as to prevent the communication quality of the second antenna module 120 from being deteriorated due to being held, and have better communication quality even if the second antenna module 120 is blocked, thereby improving the intelligent adjustment communication performance of the electronic device 1000; and/or, the controller may also control the third antenna module 130 that is not shielded to start to operate, and when the third antenna module 130 starts to operate, the second antenna module 120 may be turned off or continue to operate; alternatively, the controller may control the power of the third antenna module 130 that is already in the operating state to be increased so as to ensure the communication quality of the electronic device 1000.

Optionally, the electronic device 1000 further includes at least one fourth antenna module 140. The radiation frequency band of the fourth antenna module 140 is the same as the radiation frequency band of the first antenna module 110, so that when the first antenna module 110 is blocked, the fourth antenna module 140 is turned on or the working power of the fourth antenna module 140 is increased.

Referring to fig. 7, the electronic apparatus 1000 includes at least one third antenna module 130 and at least one fourth antenna module 140. The radiation frequency band of the third antenna module 130 is the same as the radiation frequency band of the second antenna module 120. The radiation frequency band of the fourth antenna module 140 is the same as the radiation frequency band of the first antenna module 110. The third antenna module 130 and the fourth antenna module 140 are disposed at or near at least one of a connection between the second side 52 and the third side 53, a connection between the fourth side 54 and the first side 51, the second side 52, the third side 53, and the fourth side 54.

The controller is further configured to determine that the edges or corners of the first antenna module 110 and the second antenna module 120 are in the held state when the first sensing signal and the second sensing signal are detected to be greater than the predetermined threshold. The controller adjusts the frequency modulation circuits in the first antenna module 110 and the second antenna module 120 to respectively control the power increase of the first antenna module 110 and the second antenna module 120; and/or, the controller may further control the third antenna module 130 to start working or increase power, and control the fourth antenna module 140 to start working or increase power, so as to prevent the communication quality of the first antenna module 110 and the second antenna module 120 from being deteriorated due to being held, and have better communication quality even if the first antenna module 110 and the second antenna module 120 are blocked, thereby improving the intelligent adjustment communication performance of the electronic device 1000.

In other embodiments, the controller may further determine the state of the electronic device 1000 through a sensor such as a gyroscope sensor in the electronic device 1000, and then adjust the power of each antenna module according to the state of the electronic device 1000, so as to intelligently adjust the specific absorption rate of the human body to the electromagnetic waves, thereby improving the safety of the electronic device 1000.

The structure of the first antenna module 110 in the embodiment of the present application is specifically described below with reference to the drawings.

Referring to fig. 8 and 9, the first antenna module 110 includes a first antenna unit 10, a second antenna unit 20, and a third antenna unit 30 sequentially disposed. The first antenna element 10 includes a first radiator 11. The second antenna element 20 includes a second radiator 21. The third antenna element 30 includes a third radiator 31. At least one of the first radiator 11, the second radiator 21, and the third radiator 31 forms a first radiation unit 113. In this embodiment, the first radiation unit 113 includes the first radiator 11, the second radiator 21, and the third radiator 31. A first slot 101 is disposed between the first radiator 11 and the second radiator 21, and is capacitively coupled through the first slot 101. A second slot 102 is disposed between the second radiator 21 and the third radiator 31, and the second slot 102 is used for capacitive coupling.

In one embodiment, referring to fig. 8 and 9, a portion of the first antenna element 10 and the second antenna element 20 is disposed on the first side 51, and another portion of the second antenna element 20 and the third antenna element 30 are disposed on the second side 52.

A portion of the second radiator 21 is disposed at or near the first side 51 of the housing 500. Another portion of the second radiator 21 is disposed at or near the second side 52 of the housing 500. The first radiator 11 and the third radiator 31 are respectively disposed on different sides. For example, the first radiator 11 is disposed on the first side 51, and the third radiator 31 is disposed on the second side 52; alternatively, the first radiator 11 is provided on the second side 52, and the third radiator 31 is provided on the first side 51.

A portion of the first radiating element 113 is disposed at or near the first side 51 of the housing 500. Including but not limited to the following embodiments.

In one embodiment, referring to fig. 9, the first radiator 11, the second radiator 21 and the third radiator 31 are integrated as a part of the housing 500. Further, the first radiator 11, the second radiator 21, and the third radiator 31 are embedded on the middle frame 501 to form a portion of the middle frame 501.

Optionally, referring to fig. 9, the middle frame 501 includes a plurality of metal segments 503 and an insulating segment 504 separating two adjacent metal segments 503. The plurality of metal segments 503 form the first radiator 11, the second radiator 21 and the third radiator 31, respectively, the insulation segment 504 between the first radiator 11 and the second radiator 21 is filled in the first gap 101, and the insulation segment 504 between the second radiator 21 and the third radiator 31 is filled in the second gap 102. Alternatively, the first radiator 11, the second radiator 21, and the third radiator 31 are embedded on the battery cover 502 to form a part of the battery cover 502.

In another embodiment, the first antenna module 110 is disposed within the housing 500. The first radiator 11, the second radiator 21, and the third radiator 31 may be formed on the flexible circuit board and attached to the inner surface of the case 500.

At least one of the first radiator 11, the second radiator 21 and the third radiator 31 is used for generating a first sensing signal when the body to be detected approaches. In this embodiment, the second radiator 21 may be used as a detection electrode for detecting the approach of the body to be detected. In other embodiments, the first radiator 11 and the third radiator 31 may be used as detection electrodes for detecting the approach of the body to be detected. In other embodiments, the first radiator 11, the second radiator 21 and the third radiator 31 can be used as detection electrodes for detecting the approaching of the body to be detected.

It can be understood that the first radiator 11, the second radiator 21 and the third radiator 31 are made of conductive materials and serve as sensing electrodes, and when a human body approaches, charges of the human body change charges of the sensing electrodes to generate a first sensing signal.

In this embodiment, the frequency band of the first electromagnetic wave signal at least covers a GPS-L1 frequency band, a WiFi2.4G frequency band, an LTE-MHB frequency band, an NR-UHB frequency band, and a WiFi5G frequency band.

Specifically, the electromagnetic wave signals transmitted and received by the first antenna unit 10 at least cover the LTE-MHB frequency band, the NR-MHB frequency band, and the NR-UHB frequency band; and/or the electromagnetic wave signals transmitted and received by the second antenna unit 20 at least cover a GPS-L1 frequency band, a WiFi2.4G frequency band, an LTE-MHB frequency band and an NR-MHB frequency band; and/or the electromagnetic wave signals transmitted and received by the third antenna unit 30 at least cover the NR-UHB frequency band and the WiFi5G frequency band.

The structure of the second antenna module 120 in the embodiment of the present application is specifically described below with reference to the drawings.

Referring to fig. 10, the second antenna module 120 includes a fourth antenna unit 40, a fifth antenna unit 50 and a sixth antenna unit 60 sequentially disposed. The fourth antenna element 40 comprises a fourth radiator 41. The fifth antenna element 50 includes a fifth radiator 51. The sixth antenna element 60 includes a sixth radiator 61. At least one of the fourth radiator 41, the fifth radiator 51, and the sixth radiator 61 forms the second radiation unit 123. In this embodiment, the second radiation unit 123 includes the fourth radiator 41, the fifth radiator 51, and the sixth radiator 61.

The third slot 103 is formed between the fourth radiator 41 and the fifth radiator 51, and is capacitively coupled through the third slot 103. The fifth radiator 51 and the sixth radiator 61 form a fourth slot 104 therebetween, and are capacitively coupled through the fourth slot 104.

Referring to fig. 9, a portion of the fifth radiator 51 is disposed at or near the third side 53 of the housing 500. Another portion of the fifth radiator 51 is disposed at or near the fourth side 54 of the case 500. The fourth radiator 41 and the sixth radiator 61 are disposed on different sides, respectively. For example, the fourth radiator 41 is disposed on the third side 53, and the sixth radiator 61 is disposed on the fourth side 54; alternatively, the fourth radiator 41 is provided on the fourth side 54, and the sixth radiator 61 is provided on the third side 53.

At least one of the fourth radiator 41, the fifth radiator 51 and the sixth radiator 61 is used for generating a second sensing signal when the body to be detected approaches. In this embodiment, the fifth radiator 51 may be used as a detection electrode for detecting the approach of the body to be detected. In other embodiments, the fourth radiator 41 and the sixth radiator 61 may be used as a detection electrode for detecting the approach of the body to be detected. In other embodiments, the fourth radiator 41, the fifth radiator 51 and the sixth radiator 61 can be used as detection electrodes for detecting the approaching of the main body to be detected.

It can be understood that the fourth radiator 41, the fifth radiator 51 and the sixth radiator 61 are made of conductive materials and serve as sensing electrodes, and when a human body approaches, charges of the human body change charges of the sensing electrodes to generate a second sensing signal.

The frequency band of the second electromagnetic wave signal at least covers an LTE-LB frequency band, an LTE-MHB frequency band, an NR-LB frequency band, an NR-MHB frequency band and an NR-UHB frequency band. Specifically, the electromagnetic wave signals transmitted and received by the fourth antenna unit 40 at least cover the LTE-MHB frequency band, the LTE-UHB frequency band, the NR-MHB frequency band, and the NR-UHB frequency band. The electromagnetic wave signals transmitted and received by the fifth antenna unit 50 at least cover the LTE-LB frequency band. The electromagnetic wave signals transmitted and received by the sixth antenna unit 60 cover at least the LTE-MHB frequency band, the LTE-UHB frequency band, the NR-MHB frequency band, and the NR-UHB frequency band.

The following description will exemplify specific structures of the first antenna unit 10, the second antenna unit 20, and the third antenna unit 30 of the first antenna module 110 with reference to the drawings.

In this embodiment, the first radiator 11 has a strip shape. The first radiator 11 may be formed on the case 500 or on a carrier inside the case 500 by coating, printing, or the like. The extending trace of the first radiator 11 includes, but is not limited to, a straight line, a bent line, a curved line, etc. In this embodiment, the extending track of the first radiator 11 is a straight line. The first radiator 11 may be a line with uniform width on the extended track, or a line with gradually changed width and a widened area with different widths.

Referring to fig. 11, the first radiator 11 includes a first ground G1, a first coupling end H1, and a first feeding point a disposed between the first ground G1 and the first coupling end H1. The first ground G1 and the first coupling H1 are two ends of the first radiator 11, respectively.

The first ground terminal G1 is electrically connected to the reference ground 70. The reference ground pole 70 includes a first reference ground pole GND 1. The first ground G1 is electrically connected to the first reference ground GND 1.

Referring to fig. 11, the first rf front-end unit 81 at least includes a first signal source 12 and a first frequency-selective filter circuit M1.

Referring to fig. 11, the first frequency-selective filter circuit M1 is disposed between the first feeding point a and the first signal source 12. Specifically, the output end of the first signal source 12 is electrically connected to the input end of the first frequency-selective filter circuit M1, and the output end of the first frequency-selective filter circuit M1 is electrically connected to the first feeding point a of the first radiator 11. The first signal source 12 is configured to generate an excitation signal (also referred to as a radio frequency signal), and the first frequency selective filter circuit M1 is configured to filter noise of the excitation signal transmitted by the first signal source 12, form a first radio frequency signal, and transmit the first radio frequency signal to the first radiator 11, so that the first radiator 11 receives and transmits the first sub electromagnetic wave signal.

Referring to fig. 11, in the present embodiment, the second radiator 21 is shaped like a bar. The second radiator 21 may be formed on the case 500 or on a carrier inside the case 500 by coating, printing, or the like. The extending trace of the second radiator 21 includes, but is not limited to, a straight line, a bent line, a curved line, etc. In this embodiment, the extending track of the second radiator 21 is a straight line. The second radiator 21 may be a line with uniform width on the extended track, or a line with gradually changed width and a widened area with different widths.

Referring to fig. 11, the second radiator 21 includes a second coupling end H2 and a third coupling end H3 disposed opposite to each other, and a second feeding point C disposed between the second coupling end H2 and the third coupling end H3.

The second coupling end H2 is spaced apart from the first coupling end H1 to form a first slot 101. In other words, the first slot 101 is formed between the second radiator 21 and the first radiator 11. The first radiator 11 and the second radiator 21 are capacitively coupled through the first slot 101. The "capacitive coupling" means that an electric field is generated between the first radiator 11 and the second radiator 21, a signal of the first radiator 11 can be transmitted to the second radiator 21 through the electric field, and a signal of the second radiator 21 can be transmitted to the first radiator 11 through the electric field, so that the first radiator 11 and the second radiator 21 can be electrically connected even in an off state.

Referring to fig. 11, the second rf front-end unit 82 includes the second signal source 22 and a second frequency-selective filter circuit M2. The reference ground pole 70 also includes a second reference ground pole GND 2. The second reference ground GND2 and the first reference ground GND1 may be the same reference ground or different reference grounds.

Referring to fig. 11, the second frequency-selective filter circuit M2 is disposed between the second feeding point C and the second signal source 22. Specifically, the second signal source 22 is electrically connected to an input end of the second frequency-selecting filter circuit M2, and an output end of the second frequency-selecting filter circuit M2 is electrically connected to the second radiator 21. The second signal source 22 is configured to generate an excitation signal, and the second frequency-selective filter circuit M2 is configured to filter clutter of the excitation signal transmitted by the second signal source 22, form a second radio frequency signal, and transmit the second radio frequency signal to the second radiator 21, so that the second radiator 21 receives and transmits the second sub electromagnetic wave signal.

In this embodiment, the third radiator 31 has a strip shape. The third radiator 31 may be formed on the case 500 or on a carrier inside the case 500 by coating, printing, or the like. The extending trace of the third radiator 31 includes, but is not limited to, a straight line, a bent line, a curved line, etc. In this embodiment, the extending track of the third radiator 31 is a straight line. The third radiator 31 may be a line with uniform width on the extension track, or a line with gradually changed width and a widened area and the like with different widths.

Referring to fig. 11, the third radiator 31 includes a fourth coupling end H4, a second ground end G2, and a third feeding point E disposed between the fourth coupling end H4 and the second ground end G2. The fourth coupling terminal H4 and the second ground terminal G2 are both ends of the third radiator 31. A second slit 102 is formed between the fourth coupling end H4 and the third coupling end H3.

Referring to fig. 11, the third rf front-end unit 83 includes the third signal source 32 and the third frequency-selective filter circuit M3.

One end of the third frequency-selective filter circuit M3 is electrically connected to the third feeding point E, and the other end of the third frequency-selective filter circuit M3 is electrically connected to the third signal source 32. The third frequency-selective filter circuit M3 is configured to filter noise of the radio frequency signal transmitted by the third signal source 32 to form a third radio frequency signal, and transmit the third radio frequency signal to the third radiator 31, so as to excite the third radiator 31 to receive and transmit the third electromagnetic wave signal.

Referring to fig. 8 and 11, the reference ground 70 further includes a third reference ground GND3, wherein the third frequency-selective filter circuit M3 and the second ground G2 are electrically connected to the third reference ground GND 3. Alternatively, the third reference ground GND3, the second reference ground GND2 and the first reference ground GND1 may be an integral structure or separate and separate structures.

The specific forming method of the first radiator 11, the second radiator 21, and the third radiator 31 is not specifically limited in the present application. The first radiator 11, the second radiator 21, and the third radiator 31 may be formed in at least one of a Flexible Printed Circuit (FPC) antenna radiator, a Laser Direct Structuring (LDS) antenna radiator, a Print Direct Structuring (PDS) antenna radiator, a metal member, or the like.

Specifically, the first radiator 11, the second radiator 21, and the third radiator 31 are made of conductive materials, and the specific materials include, but are not limited to, metal, transparent conductive oxide (such as ITO), carbon nanotubes, graphene, and the like. In this embodiment, the first radiator 11, the second radiator 21, and the third radiator 31 are made of metal, such as silver or copper.

Optionally, when the first antenna module 110 is applied to the electronic device 1000, the first signal source 12, the second signal source 22, the third signal source 32, the first frequency-selective filter circuit M1, the second frequency-selective filter circuit M2, and the third frequency-selective filter circuit M3 are all disposed on the main board 200 of the electronic device 1000.

Optionally, the first signal source 12, the second signal source 22, and the third signal source 32 are the same signal source, or the third signal source 32 is different from the first signal source 12 and the second signal source 22.

Specifically, the first signal source 12, the second signal source 22, and the third signal source 32 are the same signal source. The same signal source respectively emits excitation signals towards the first frequency-selecting filter circuit M1, the second frequency-selecting filter circuit M2 and the third frequency-selecting filter circuit M3. Because the first frequency-selective filter circuit M1, the second frequency-selective filter circuit M2, and the third frequency-selective filter circuit M3 have different circuit structures, the first frequency-selective filter circuit M1, the second frequency-selective filter circuit M2, and the third frequency-selective filter circuit M3 have different gating frequency bands, so that the first radiator 11, the second radiator 21, and the third radiator 31 respectively receive and transmit the first electromagnetic wave, the second electromagnetic wave, and the third electromagnetic wave under different excitation signals, and the frequency bands of the first electromagnetic wave signal, the second electromagnetic wave signal, and the third electromagnetic wave signal are different, so that the coverage frequency band of the first antenna module 110 is wider, and the signal receiving and transmitting isolation between each antenna unit is higher, and the interference is small.

In another possible embodiment, the first signal source 12, the second signal source 22, and the third signal source 32 are different signal sources. The first signal source 12, the second signal source 22, and the third signal source 32 may be integrated in the same chip or different chips that are separately packaged. The first signal source 12 is configured to generate a first excitation signal, the first excitation signal is filtered by the first frequency-selective filter circuit M1 to form a first radio frequency signal, and the first radio frequency signal is loaded on the first radiator 11, so that the first radiator 11 receives and transmits the first sub electromagnetic wave signal. The second signal source 22 is configured to generate a second excitation signal, the second excitation signal is filtered by the second frequency-selective filter circuit M2 to form a second radio frequency signal, and the second radio frequency signal is loaded on the second radiator 21, so that the second radiator 21 receives and transmits the second sub electromagnetic wave signal. The third signal source 32 is configured to generate a third excitation signal, the third excitation signal is filtered by the third frequency-selective filter circuit M3 to form a third radio frequency signal, and the third radio frequency signal is loaded on the third radiator 31, so that the third radiator 31 receives and transmits a third electromagnetic wave signal.

In this embodiment, the first frequency-selective filter circuit M1, the second frequency-selective filter circuit M2, and the third frequency-selective filter circuit M3 are disposed to enable the first antenna unit 10, the second antenna unit 20, and the third antenna unit 30 to transmit and receive electromagnetic wave signals of different frequency bands, thereby improving the isolation between the first antenna unit 10, the second antenna unit 20, and the third antenna unit 30. In other words, the first frequency-selective filter circuit M1, the second frequency-selective filter circuit M2, and the third frequency-selective filter circuit M3 can make the electromagnetic wave signals transmitted and received by the first antenna unit 10, the electromagnetic wave signals transmitted and received by the second antenna unit 20, and the electromagnetic wave signals transmitted and received by the third antenna unit 30 interfere with each other very little or without interference.

It is understood that the first frequency-selective filter circuit M1 includes, but is not limited to, capacitors, inductors, resistors, etc. arranged in series and/or in parallel, and the first frequency-selective filter circuit M1 may include a plurality of branches formed by capacitors, inductors, resistors connected in series and/or in parallel, and switches for controlling on/off of the plurality of branches. By controlling the on/off of the different switches, the frequency selection parameters (including the resistance value, the inductance value and the capacitance value) of the first frequency selection filter circuit M1 can be adjusted, and then the filtering range of the first frequency selection filter circuit M1 is adjusted, so that the first frequency selection filter circuit M1 can obtain the first radio frequency signal from the excitation signal emitted by the first signal source 12, and further the first antenna unit 10 can receive and transmit the first sub electromagnetic wave signal. Similarly, the second frequency-selective filter circuit M2 and the third frequency-selective filter circuit M3 each include a plurality of branches formed by capacitors, inductors, and resistors connected in series and/or in parallel, and switches for controlling on/off of the plurality of branches. The first frequency-selective filter circuit M1, the second frequency-selective filter circuit M2, and the third frequency-selective filter circuit M3 have different specific structures. The first frequency-selecting filter circuit M1, the second frequency-selecting filter circuit M2, and the third frequency-selecting filter circuit M3 are all used to adjust the impedance of the radiator electrically connected to the first frequency-selecting filter circuit M1, so that the impedance of the radiator electrically connected to the first frequency-selecting filter circuit M3578 matches the resonant frequency of the radiator, thereby achieving a higher transmitting/receiving power of the radiator, and therefore the first frequency-selecting filter circuit M1, the second frequency-selecting filter circuit M2, and the third frequency-selecting filter circuit M3 can also be referred to as matching circuits.

Referring to fig. 12 to 19 together, fig. 12 to 19 are schematic diagrams of the first frequency-selective filter circuit M1 according to various embodiments. The first frequency-selective filter circuit M1 includes one or more of the following circuits.

Referring to fig. 12, the first frequency-selective filter circuit M1 includes a band-pass circuit formed by an inductor L0 and a capacitor C0 connected in series.

Referring to fig. 13, the first frequency-selective filter circuit M1 includes a band-stop circuit formed by an inductor L0 and a capacitor C0 connected in parallel.

Referring to fig. 14, the first frequency-selective filter circuit M1 includes an inductor L0, a first capacitor C1, and a second capacitor C2. The inductor L0 is connected in parallel with the first capacitor C1, and the second capacitor C2 is electrically connected to a node where the inductor L0 is electrically connected to the first capacitor C1.

Referring to fig. 15, the first frequency-selective filter circuit M1 includes a capacitor C0, a first inductor L1, and a second inductor L2. The capacitor C0 is connected in parallel with the first inductor L1, and the second inductor L2 is electrically connected to a node where the capacitor C0 is electrically connected to the first inductor L1.

Referring to fig. 16, the first frequency-selective filter circuit M1 includes an inductor L0, a first capacitor C1, and a second capacitor C2. The inductor L0 is connected in series with the first capacitor C1, one end of the second capacitor C2 is electrically connected to the first end of the inductor L0, which is not connected to the first capacitor C1, and the other end of the second capacitor C2 is electrically connected to the end of the first capacitor C1, which is not connected to the inductor L0.

Referring to fig. 17, the first frequency-selective filter circuit M1 includes a capacitor C0, a first inductor L1, and a second inductor L2. The capacitor C0 is connected in series with the first inductor L1, one end of the second inductor L2 is electrically connected to the end of the capacitor C0 not connected to the first inductor L1, and the other end of the second inductor L2 is electrically connected to the end of the first inductor L1 not connected to the capacitor C0.

Referring to fig. 18, the first frequency-selective filter circuit M1 includes a first capacitor C1, a second capacitor C2, a first inductor L1, and a second inductor L2. The first capacitor C1 is connected in parallel with the first inductor L1, the second capacitor C2 is connected in parallel with the second inductor L2, and one end of the whole formed by the second capacitor C2 and the second inductor L2 in parallel is electrically connected with one end of the whole formed by the first capacitor C1 and the first inductor L1 in parallel.

Referring to fig. 19, the first frequency-selective filter circuit M1 includes a first capacitor C1, a second capacitor C2, a first inductor L1, and a second inductor L2, wherein the first capacitor C1 is connected in series with the first inductor L1 to form a first unit 111, the second capacitor C2 is connected in series with the second inductor L2 to form a second unit 112, and the first unit 111 is connected in parallel with the second unit 112.

It is to be understood that the second frequency-selecting filter circuit M2 may include one or more circuits shown in fig. 12 to 19. The third frequency selective filter circuit M3 may include one or more of the circuits of fig. 12-19.

The first frequency-selecting filter circuit M1 exhibits different bandpass bandstop characteristics in different frequency bands.

Therefore, by setting the frequency modulation circuit and adjusting the parameters of the frequency modulation circuit, the resonant frequencies of the first antenna unit 10, the second antenna unit 20, and the third antenna unit 30 can move along the low frequency or the high frequency, so as to realize the ultra wide band of the first antenna module 110, so as to cover the GPS, WiFi, 4G, 5G frequency bands, or even more frequency bands, and increase the coverage and the communication quality of the antenna signals of the first antenna module 110.

The following description will be made by taking the frequency modulation method provided in the present application as an example with reference to the accompanying drawings to obtain a suitable impedance matching and increase the power of the first antenna module 110. Optionally, the frequency modulation method of the antenna unit provided by the present application includes, but is not limited to, aperture frequency modulation and matching frequency modulation. This application is through setting up frequency modulation circuit to make antenna element's resonant frequency move along low frequency or high frequency direction, and then make antenna element can receive and dispatch the electromagnetic wave of required frequency channel.

Referring to fig. 11, the second radiator 21 further includes a first coupling point B disposed at a side of the second coupling end H2 away from the first coupling end H1. The second antenna element 20 further comprises a first frequency modulation circuit T1. One end of the first frequency modulation circuit T1 is electrically connected to the first coupling point B. The other end of the first frequency modulation circuit T1 is grounded. In the present embodiment, the first tuning circuit T1 is directly electrically connected to the second radiator 21 to adjust the impedance matching characteristic of the second radiator 21, thereby realizing aperture adjustment. In other embodiments, the first fm circuit T1 may be further electrically connected to the second frequency-selective filter circuit M2, and the first fm circuit T1 and the second frequency-selective filter circuit M2 form a new matching circuit to adjust the impedance matching characteristic of the second radiator 21, so as to implement matching adjustment.

Optionally, the first frequency modulation circuit T1 includes a combination of a switch and at least one of a capacitor and an inductor; and/or the first frequency modulation circuit T1 comprises a variable capacitance.

In one embodiment, the first frequency modulation circuit T1 includes, but is not limited to, capacitors, inductors, resistors, etc. connected in series and/or in parallel, and the first frequency modulation circuit T1 may include a plurality of branches formed by capacitors, inductors, resistors connected in series and/or in parallel, and switches for controlling on/off of the plurality of branches. By controlling the on/off of the different switches, the frequency selection parameters (including resistance, inductance, and capacitance) of the first fm circuit T1 can be adjusted, and then the impedance of the second radiator 21 is adjusted, and then the resonant frequency point of the second radiator 21 is adjusted. The specific structure of the first frequency modulation circuit T1 is not limited in the present application. For example, the first tuning circuit T1 may include one or more of the circuits of fig. 12-19.

In another embodiment, the first frequency tuning circuit T1 includes, but is not limited to, a variable capacitor. The capacitance value of the variable capacitor is adjusted to adjust the frequency modulation parameter of the first frequency modulation circuit T1, so as to adjust the impedance of the second radiator 21, and further adjust the resonance frequency point of the second radiator 21.

By providing the first tuning circuit T1, tuning parameters (such as resistance, capacitance, and inductance) of the first tuning circuit T1 are adjusted to adjust the impedance of the second radiator 21, so that the resonant frequency point of the second radiator 21 shifts to a small range toward the high frequency band or the low frequency band. Thus, the frequency coverage of the second antenna unit 20 in a wider frequency band can be improved.

Further, referring to fig. 20 and 21, the first antenna unit 10 further includes a second frequency modulation circuit T2. The first radiator 11 further includes a first tuning point F. The first tuning point F is located between the first feeding point a and the first coupling end H1. One end of the second frequency modulation circuit T2 is electrically connected to the first frequency modulation point F or to the first frequency-selecting filter circuit M1. The other end of the second frequency modulation circuit T2 is grounded.

In this embodiment, referring to fig. 20, the second fm circuit T2 is directly electrically connected to the first radiator 11 to adjust the impedance matching characteristic of the first radiator 11, thereby adjusting the aperture. In another embodiment, referring to fig. 14, the second tuning circuit T2 may be further electrically connected to the first frequency-selective filter circuit M1, and the second tuning circuit T2 and the first frequency-selective filter circuit M1 form a new matching circuit to adjust the impedance matching characteristic of the first radiator 11, thereby implementing matching adjustment.

Optionally, the second frequency modulation circuit T2 includes a switch in combination with at least one of a capacitor and an inductor; and/or the second frequency modulation circuit T2 comprises a variable capacitance.

In one embodiment, the second tuning circuit T2 includes, but is not limited to, capacitors, inductors, resistors, etc. connected in series and/or in parallel, and the second tuning circuit T2 may include a plurality of branches formed by capacitors, inductors, resistors connected in series and/or in parallel, and switches for controlling on/off of the plurality of branches. By controlling the on/off of the different switches, the frequency selection parameters (including resistance, inductance, and capacitance) of the second fm circuit T2 can be adjusted, and then the impedance of the first radiator 11 is adjusted, and then the resonant frequency point of the first radiator 11 is adjusted. The specific structure of the second frequency modulation circuit T2 is not limited in the present application. For example, the second frequency modulation circuit T2 may include one or more of the circuits of fig. 12-19.

In another embodiment, the second tuning circuit T2 includes, but is not limited to, a variable capacitor. The capacitance value of the variable capacitor is adjusted to adjust the frequency modulation parameter of the second frequency modulation circuit T2, so as to adjust the impedance of the first radiator 11, and further adjust the resonant frequency point of the first radiator 11.

By providing the second tuning circuit T2, tuning parameters (such as resistance, capacitance, and inductance) of the second tuning circuit T2 are adjusted to adjust the impedance of the first radiator 11, so that the resonant frequency point of the first radiator 11 shifts to a small range toward the high frequency band or the low frequency band. In this way, the frequency coverage of the first antenna unit 10 in a wider frequency band can be improved.

The equivalent circuit diagram and the resonance mode of the first antenna element 10 in the present application are illustrated below with reference to the drawings.

Referring to fig. 22, fig. 22 is an equivalent circuit diagram of the first antenna unit 10. Wherein a portion of the second antenna element 20 is capacitively coupled to the first antenna element 10. Referring to fig. 23, fig. 23 is a return loss curve diagram of the first antenna unit 10.

The present application designs the number and structure of the antenna units of the first antenna module 110, and also designs the effective electrical length and structure of the first radiator 11 in the first antenna unit 10, the position of the first feeding point a, the effective electrical length of the second radiator 21 coupled with the first radiator 11, etc., to form a resonant mode in the frequency band with higher practicability, so as to receive and transmit the electromagnetic waves in the frequency band with higher practicability, and further, adjusts the impedance matching of the first radiator 11 through the frequency modulation circuit (including the first frequency modulation circuit T1 and the second frequency modulation circuit T2), so as to realize that the resonant mode of the first antenna unit 10 moves along the high frequency band and the low frequency band, and thus, the first antenna unit 10 has an ultra-wide band in the frequency band with higher practicability. The effective electrical length is a length of the first radio frequency signal acting on the first radiator 11, and may be an actual length of the first radiator 11, or may be slightly smaller or slightly larger than the actual length of the first radiator 11.

Referring to fig. 23, the first radiator 11 of the first antenna unit 10 is configured to generate an electromagnetic wave signal of a first resonant mode a under excitation of a radio frequency signal emitted by the first signal source 12 by designing an effective electrical length of the first radiator 11, wherein the first radiator 11 is between a first ground G1 and a first coupling end H1. By designing the position of the first feeding point a, the first radiator 11 between the first feeding point a and the second coupling end H2 is used for generating the second resonant mode b under the excitation of the radio frequency signal emitted by the first signal source 12. And the frequency band of the first resonance mode a and the frequency band of the second resonance mode b cover 2 GHz-4 GHz together.

Further, the first resonant mode a is a 1/4 wavelength fundamental mode of the first antenna element 10 operating from the first ground terminal G1 to the first coupling terminal H1. It can be understood that the 1/4 fundamental wavelength mode is a more efficient resonant mode of the first rf signal at the first ground terminal G1 to the first coupling terminal H1. The first antenna element 10 operates in the fundamental mode with a high transceiving power. In other words, the frequency band covered by the first resonant mode a has higher transceiving power. The frequency bands covered by the first resonant mode a include, but are not limited to, the B40\41 and N41 frequency bands.

In one embodiment, by designing the effective electrical length of the first radiator 11 between the first ground G1 and the first coupling end H1, for example, the length between the first ground G1 and the first coupling end H1 is about 2.9cm, the parameters of the first fm circuit T1 and the first frequency-selective filter circuit M1 are adjusted so that the first radiator 11 between the first ground G1 and the first coupling end H1 radiates the first resonant mode a of the 1/4 wavelength fundamental mode. For example, referring to FIG. 23, the resonant frequency of the first resonant mode a is about 2.5495 GHz.

Optionally, referring to fig. 23, the second resonant mode b is a 1/4 wavelength fundamental mode of the first antenna element 10 operating from the first feeding point a to the first coupling end H1. The first antenna element 10 operates in the second resonance mode b with a high transceiving power. In other words, the frequency band covered by the second resonant mode b has higher transceiving power. The frequency bands covered by the second resonant mode b include, but are not limited to, the N77 and N78 frequency bands.

In one embodiment, by designing the effective electrical length of the first radiator 11 between the first feeding point a and the first coupling end H1, for example, the length between the first feeding point a and the first coupling end H1 is about 2.1cm, the parameters of the first tuning circuit T1 and the first frequency-selective filter circuit M1 are adjusted so that the first radiator 11 between the first feeding point a and the first coupling end H1 radiates the second resonant mode b of the 1/4 fundamental wavelength mode. For example, referring to FIG. 23, the resonant frequency of the second resonant mode b is about 3.5293 GHz.

The embodiment of the application designs the position of the first feeding point a by designing the size and the structure of the first radiator 11, and adjusts the parameter of the first frequency modulation circuit T1, so that the first radiator 11 can cover a certain frequency band within the range of 2 GHz-4 GHz, thereby realizing the coverage of B40\41, N41, N77 and N78 frequency bands, and having higher transceiving power in the frequency bands.

It is understood that the second radiator 21 between the first coupling point B and the second coupling end H2 is for capacitive coupling with the first radiator 11. Specifically, the length of the second radiator 21 between the first coupling point B and the second coupling end H2 is less than 1/4 of the wavelength of the electromagnetic wave at the resonant frequency point of the second resonant mode B. The length of the second radiator 21 between the first coupling point B and the second coupling end H2 is less than 2.1 cm. The second antenna element 20 performs a capacitive loading function on the first antenna element 10, so that the electromagnetic wave signal radiated by the first antenna element 10 is shifted along a low frequency band, and meanwhile, the radiation efficiency of the first antenna element 10 can be improved.

The equivalent circuit diagram and the resonant mode of the second antenna element 20 in the present application are illustrated below with reference to the drawings.

Referring to fig. 24, fig. 24 is an equivalent circuit diagram of the second antenna element 20. Wherein the third antenna element 30 is capacitively coupled to the second antenna element 20. Referring to fig. 25, fig. 25 is a return loss curve diagram of the second antenna unit 20.

It can be understood that, in the present application, the number and the structure of the antenna units of the first antenna module 110 are designed, and the effective electrical length and the structure of the second radiator 21 in the second antenna unit 20, the position of the second feeding point C, the effective electrical length of the third radiator 31 coupled to the second radiator 21, and the like are also designed, so as to form a resonant mode in the frequency band with higher practicability, so as to receive and transmit the electromagnetic waves in the frequency band with higher practicability, and further, the impedance matching of the second radiator 21 is adjusted by the frequency modulation circuit (including the second frequency modulation circuit T2, the second frequency selection filter circuit M2, and the third frequency selection filter circuit M3), so that the resonant mode of the second antenna unit 20 moves along the high frequency band and the low frequency band, and thus, the second antenna unit 20 has a super-bandwidth in the frequency band with higher practicability. The effective electrical length is a length of the second radio frequency signal acting on the second radiator 21, and may be an actual length of the second radiator 21, or may be slightly smaller or slightly larger than the actual length of the second radiator 21.

Referring to fig. 25, by designing the effective electrical length of the second radiator 21 of the second antenna unit 20, the second radiator 21 between the first coupling point B and the third coupling end H3 is used to generate a third resonant mode c under the excitation of the rf signal emitted by the second signal source. By designing the position of the second feeding point C, the second radiator 21 between the second feeding point C and the third coupling end H3 is used for generating a fourth resonant mode d under the excitation of the radio frequency signal emitted by the second signal source 22, wherein the frequency bands of the third resonant mode C and the fourth resonant mode d jointly cover 1.5 GHz-3 GHz.

Optionally, the third resonant mode c is a 1/4 wavelength fundamental mode of the second antenna element 20 operating from the first coupling point B to the third coupling end H3. The second antenna element 20 operates in the fundamental mode with a high transceiving power. In other words, the frequency band covered by the third resonant mode c has higher transceiving power. The frequency bands covered by the third resonant mode c include, but are not limited to, the GPS-L1, B3, and N3 frequency bands.

In one embodiment, by designing the effective electrical length of the second radiator 21 between the first coupling point B and the third coupling end H3, for example, the length between the first coupling point B and the third coupling end H3 is about 4.6cm, the parameters of the second fm circuit T2, the second fm filter circuit M2, and the third fm filter circuit M3 are adjusted so that the second radiator 21 between the first coupling point B and the third coupling end H3 radiates the third resonant mode c of the 1/4 wavelength fundamental mode. For example, referring to FIG. 25, the resonant frequency of the third resonant mode c is about 1.618 GHz.

Optionally, the fourth resonant mode d is a 1/4 wavelength fundamental mode of the second antenna element 20 operating from the second feeding point C to the third coupling end H3. The second antenna element 20 operates in the fourth resonant mode d with a high transceiving power. In other words, the frequency band covered by the fourth resonant mode d has higher transceiving power. The frequency bands covered by the fourth resonant mode d include, but are not limited to, the wifi2.4ghz, B7\40\41, N7 and N41 frequency bands.

In one embodiment, by designing the effective electrical length of the second radiator 21 between the second feeding point C and the third coupling end H3, for example, the length between the second feeding point C and the third coupling end H3 is about 2.1cm, the parameters of the first tuning circuit T1, the second frequency-selective filter circuit M2, and the third frequency-selective filter circuit M3 are adjusted so that the second radiator 21 between the second feeding point C and the third coupling end H3 radiates the fourth resonant mode d of the 1/4 wavelength fundamental mode. For example, referring to FIG. 25, the resonant frequency of the fourth resonant mode d is about 2.4943 GHz.

In the embodiment of the application, the position of the second feeding point C is designed by designing the size and the structure of the second radiator 21, and the parameters of the first frequency modulation circuit T1, the second frequency selection filter circuit M2 and the third frequency selection filter circuit M3 are adjusted, so that the second radiator 21 can cover a certain frequency band within the frequency band range of 1.5GHz to 3GHz, thereby realizing the coverage of the frequency bands of GPS-L1, wifi2.4, B3\7\40\41 and N3\7\41, and having higher transceiving power in the frequency bands.

It should be noted that the first resonance mode a, the second resonance mode b, the third resonance mode c, and the fourth resonance mode b may be generated simultaneously, or one or more of them may be generated.

The equivalent circuit diagram and the resonant mode of the third antenna element 30 in the present application are illustrated below with reference to the drawings.

Referring to fig. 26, fig. 16 is an equivalent circuit diagram of the third antenna element 30. Wherein the second antenna element 20 is capacitively coupled to the third antenna element 30. Referring to fig. 27, fig. 27 is a return loss curve diagram of the third antenna unit 30.

It can be understood that the present application designs the effective electrical length and structure of the third radiator 31 in the third antenna unit 30, the position of the third feeding point, the effective electrical length of the second radiator 21 coupled to the third radiator 31, etc., to form a resonant mode in the frequency band with higher practicability, so as to receive and transmit the electromagnetic waves in the frequency band with higher practicability, and further, adjusts the impedance matching of the third radiator 31 through the fm circuit (including the second fm circuit T2, the second fm filter circuit M2, and the third fm filter circuit M3), so as to realize that the resonant mode of the third antenna unit 30 moves along the high-frequency and low-frequency bands, and thus, the third antenna unit 30 has an ultra-wide band in the frequency band with higher practicability. The effective electrical length is a length of the third radio frequency signal acting on the third radiator 31, and may be an actual length of the third radiator 31, or may be slightly smaller or slightly larger than the actual length of the third radiator 31.

Referring to fig. 26 and 27, regarding the third radiator 31 of the third antenna unit 30, by designing the effective electrical length of the third radiator 31, the third radiator 31 between the second ground G2 and the fourth coupling end H4 is used to generate the fifth resonant mode e and the sixth resonant mode f under the excitation of the rf signal emitted by the third signal source 32. By designing the position of the third feeding point E, the second radiator 21 between the first coupling point B and the third coupling end H3 is used for generating a seventh resonant mode g under the excitation of the radio frequency signal emitted by the third signal source 32; and the frequency bands of the fifth resonance mode e, the sixth resonance mode f and the seventh resonance mode g jointly cover 3 GHz-6.5 GHz.

Further, the fifth resonant mode e is a 1/8 wavelength mode in which the third antenna element 30 operates from the second ground terminal G2 to the fourth coupling terminal H4. Specifically, the fifth resonant mode e is a 1/4-1/8 wavelength mode of the third antenna unit 30 working at the second ground G2 to the fourth coupling end H4. The frequency band covered by the fifth resonance mode e includes, but is not limited to, the N77/78 frequency band.

In one embodiment, by designing the effective electrical length of the third radiator 31 between the second ground G2 and the fourth coupling end H4, for example, the length between the second ground G2 and the fourth coupling end H4 is about 1.1cm to 2.2cm, the third radiator 31 between the second ground G2 and the fourth coupling end H4 radiates the fifth resonant mode e of 1/8 wavelength fundamental mode by adjusting the parameters of the second frequency modulation circuit T2, the second frequency-selective filter circuit M2, and the third frequency-selective filter circuit M3. For example, the resonance frequency of the fifth resonance mode e is about 3.4258 GHz.

Further, the third feeding point E is close to the fourth coupling terminal H4. In other words, the third feeding point E is close to the second slot 102, so that the third feeding point E is capacitively coupled, and the third radiator 31 between the second ground G2 and the fourth coupling end H4 is easier to excite the 1/8 fundamental wavelength mode, so as to better cover the N77/78 frequency band and have higher operating power in the N77/78 frequency band.

Further, the sixth resonant mode f is a 1/4 wavelength fundamental mode of the third antenna element 30 operating at the second ground terminal G2 to the fourth coupling terminal H4. The third antenna element 30 operates in the sixth resonant mode f with high transceiving power. In other words, the frequency band covered by the sixth resonant mode f has higher transceiving power. The frequency band covered by the sixth resonant mode f includes, but is not limited to, a WiFi 5GHz frequency band.

In one embodiment, by designing the effective electrical length of the second radiator 21 between the second feeding point C and the third coupling end H3, for example, the length between the second feeding point C and the third coupling end H3 is about 1.3cm, the parameters of the first tuning circuit T1, the second frequency-selective filter circuit M2, and the third frequency-selective filter circuit M3 are adjusted so that the second radiator 21 between the second feeding point C and the third coupling end H3 radiates the sixth resonant mode f of the 1/4 wavelength fundamental mode. For example, the resonant frequency of the sixth resonant mode f is about 5.7357 GHz.

Further, the seventh resonant mode g is a 1/2 wavelength mode in which the third antenna element 30 operates from the first coupling point B to the third coupling end H3.

The fifth resonance mode e, the sixth resonance mode f, and the seventh resonance mode g may be generated simultaneously, or one or more of them may be generated.

The first antenna module 110 provided in the embodiment of the present application designs the capacitive coupling of the three antenna elements, and designs the radiator, the feeding point, and the frequency modulation circuit of each antenna element, so that the first sub-electromagnetic wave signal transmitted and received by the first antenna element 10 at least covers B40/41+ N41/78/77. The frequency band B40 covers 2.3 GHz-2.5 GHz, the frequency band B41 covers 2.5 GHz-2.69 GHz, the frequency band N41 covers 2.49 GHz-2.69 GHz, the frequency band N78 covers 3.3 GHz-3.8 GHz, and the frequency band N77 covers 3.3 GHz-4.2 GHz. The second sub electromagnetic wave signals transmitted and received by the second antenna unit 20 at least cover (GPS-L1) + (WIFI2.4G) + (LTE-MHB) + (NR-MHB), wherein the frequency band of GPS-L1 covers 1.57542GHz, the frequency band of WIFI2.4G covers 2.4 GHz-2.5 GHz, and the LTE-MHB comprises B1/3/7/40/41, wherein the frequency band of B1 covers 1.92-1.98 GHz, the frequency band of B3 covers 1.71-1.785 GHz, the frequency band of B7 covers 2.5-2.57 GHz, the frequency band of B40 covers 2.3-2.4GHz, and the frequency band of B40 covers 2.496-2.69 GHz. The NR-MHB band includes N1/3/7/40/41. Wherein, N1 covers 1.920MHz-1.980, N3 covers 1.710GHz-1.785GHz, N7 covers 2.500GHz-2.570GHz, N40 covers 2.300GHz-2.400GHz, and N41 covers 2.496GHz-2.690 GHz. The third electromagnetic wave signal transceived by the third antenna unit 30 covers at least N77/78/79+ WIFI 5G. Wherein, N77 covers 3.300GHz-4.200GHz, N78 covers 3.300GHz-3.800GHz, N79 covers 4.400GHz-5GHz, WIFI5G covers 5.150GHz-5.85 GHz. Thus, the first antenna module 110 has a high coverage rate and high power in a frequency band (1-6 GHz) with high practicability. By designing the frequency modulation circuit, the first antenna module 110 can be tuned to a frequency band to be radiated.

Since the first radiator 11 and the second radiator 21 are disposed at an interval and coupled to each other, that is, the first radiator 11 and the second radiator 21 have a common caliber. The third radiator 31 and the second radiator 21 are disposed at intervals and coupled to each other, that is, the third radiator 31 and the second radiator 21 have a common caliber. When the first antenna module 110 is operated, the first driving signal generated by the first signal source 12 can be coupled to the second radiator 21 through the first radiator 11. In other words, the first antenna unit 10 can transmit and receive electromagnetic wave signals by using not only the first radiator 11 but also the second radiator 21 of the second antenna unit 20, so that the first antenna unit 10 can operate in a wider frequency band. Similarly, the second antenna unit 20 can transmit and receive electromagnetic wave signals by using not only the second radiator 21 but also the first radiator 11 of the first antenna unit 10 and the third radiator 31 of the third antenna unit 30, so that the second antenna unit 20 can operate in a wider frequency band. Likewise, the third antenna unit 30 can transmit and receive electromagnetic wave signals by using not only the third radiator 31 but also the second radiator 21 of the second antenna unit 20, so that the third antenna unit 30 can operate in a wider frequency band. Therefore, the radiators between the first antenna unit 10 and the second antenna unit 20 can be multiplexed with each other, and multiple antenna units are integrated, so that the overall size of the first antenna module 110 can be reduced while the bandwidth of the first antenna module 110 is increased, and the overall miniaturization of the electronic device 1000 is facilitated.

Referring to fig. 28, the first antenna module 110 further includes a first isolation device 71, a second isolation device 72, and a proximity sensing device 80. The first isolation device 71 is electrically connected between the first radiating element 113 and a reference ground, a frequency selective filter circuit, a frequency modulation circuit, etc.

The first isolation device 71 is configured to isolate a proximity sensing signal generated when the body to be detected approaches the first radiation unit 113 and conduct an electromagnetic wave signal received and transmitted by the first radiation unit 113. Specifically, the first isolation device 71 at least includes a dc blocking capacitor, so that the first radiation unit 113 is in a "floating" state with respect to the dc signal, so as to detect a capacitance change caused by the approach of the subject to be detected. The subject to be detected includes, but is not limited to, a human body.

One end of the second isolation device 72 is electrically connected between the first radiation unit 113 and the first isolation device 71, and the second isolation device 72 is used for isolating the electromagnetic wave signal received and transmitted by the first radiation unit 113 and conducting the proximity sensing signal. Specifically, the second isolation device 72 includes at least an isolation inductor.

The proximity sensing device 80 is electrically connected to the other end of the second isolation device 72 for sensing the magnitude of the proximity sensing signal.

When the body to be detected is close to the first radiation unit 113, the proximity sensing signal generated by the first radiation unit 113 is a direct current signal. The electromagnetic wave signal is an alternating current signal. By arranging the first isolation device 71 between the first radiation unit 113 and the reference ground, the frequency-selective filter circuit, the frequency modulation circuit, etc., the proximity sensing signal does not flow to the reference ground, the frequency-selective filter circuit, the frequency modulation circuit, etc. through the first radiation unit 113, thereby affecting the signal transceiving of the first antenna module 110. By disposing the second isolation device 72 between the proximity sensing device 80 and the first radiation unit 113 so that the electromagnetic wave signal does not flow to the proximity sensing device 80 through the first radiation unit 113, the sensing efficiency of the proximity sensing device 80 for the proximity sensing signal is improved.

The present application is not limited to a specific structure of the proximity sensing device 80, and the proximity sensing device 80 includes, but is not limited to, a sensor for sensing a capacitance change or an inductance change.

The first antenna module 110 further includes a controller (not shown). The controller electrically connects the end of the proximity sensing device 80 remote from the second isolation device 72. The controller is configured to determine whether the to-be-detected body is close to the first radiation unit 113 according to the magnitude of the proximity sensing signal, and reduce the working power of the first antenna module 110 when the to-be-detected body is close to the first radiation unit 113. Specifically, when the proximity sensing device 80 detects that a human body approaches the first radiating unit 113, the transmission power of the first antenna module 110 can be reduced, so as to reduce the specific absorption rate of the human body for the electromagnetic wave signals transmitted by the first antenna module 110; when the proximity sensing device 80 detects that the human body is far away from the first radiation unit 113, the transmission power of the first antenna module 110 can be increased to improve the antenna performance of the first antenna module 110, and meanwhile, the specific absorption rate of the human body to the electromagnetic wave signals transmitted by the first antenna module 110 cannot be increased, so that the intelligent adjustability of the radiation performance of the electronic device 1000 is realized, and the safety performance of the electronic device 1000 is improved.

Similarly, devices having functions similar to those of the first isolation device 71, the second isolation device 72 and the proximity sensing device 80 may be disposed in the second antenna module 120, so that the second radiation unit 123 can also detect the approach of the body to be detected, and since the first antenna module 110 and the second antenna module 120 are located at diagonal positions and can realize the circumferential side full detection of the electronic device 1000, the electronic device 1000 has an omnidirectional proximity detection function.

Referring to fig. 29, the first isolation device 71 further includes a first sub-isolation device 711. The second isolation device 72 includes a second sub-isolation device 721. The proximity sensing device 81 includes a first sub-sensing device 801.

The first sub-isolation device 711 is electrically connected between the second radiator 21 and the second frequency-selective filter circuit M2, and between the second radiator 21 and the first fm circuit T1. The first sub-isolation device 711 is configured to isolate a first sub-sensing signal generated when the body to be detected approaches the second radiator 21 and conduct an electromagnetic wave signal received and transmitted by the second radiator 21. Specifically, the first sub-isolation device 711 includes at least a dc blocking capacitor.

One end of the second sub-isolation device 721 is electrically connected between the second radiator 21 and the first sub-isolation device 711 or electrically connected to the second radiator 21, and the second sub-isolation device 721 is used for isolating the electromagnetic wave signals received and transmitted by the second radiator 21 and conducting the first sub-sensing signals. Specifically, the second sub-isolation device 721 includes at least an isolation inductor.

The first sub sensing device 801 is electrically connected to the other end of the second sub isolation device 721, and is used for sensing the magnitude of the first sub sensing signal.

When the body to be detected is close to the second radiator 21, the proximity sensing signal generated by the second radiator 21 is a direct current signal. The electromagnetic wave signal is an alternating current signal. The first sub-isolation device 711 is disposed between the second radiator 21 and the second frequency-selective filter circuit M2, and between the second radiator 21 and the first fm circuit T1, so that the first sub-sensing signal does not flow to the second frequency-selective filter circuit M2 and the first fm circuit T1 through the second radiator 21, thereby affecting the signal transceiving of the second antenna unit 20. By disposing the second sub-isolation device 721 between the first sub-sensing device 801 and the second radiator 21, the electromagnetic wave signal does not flow to the first sub-sensing device 801 through the second radiator 21, and the sensing efficiency of the first sub-sensing device 801 for the proximity sensing signal is improved.

The present application is not limited to the specific structure of the first sub-sensing device 801, and the first sub-sensing device 801 includes, but is not limited to, a sensor for sensing a capacitance change or an inductance change.

The controller electrically connects an end of the first sub-sensing device 801 remote from the second sub-isolation device 721. The controller is configured to determine whether the body to be detected is close to the second radiator 21 according to the magnitude of the first sub-sensing signal, and reduce the working power of the second antenna unit 20 when the body to be detected is close to the second radiator 21. Specifically, when the first sub-sensing device 801 detects that a human body approaches the second antenna unit 20, the transmission power of the second antenna unit 20 can be reduced, so as to reduce the specific absorption rate of the human body for electromagnetic wave signals transmitted by the second antenna unit 20; when the first sub-sensing device 801 detects that a human body is far away from the second antenna unit 20, the transmission power of the second antenna unit 20 can be increased to improve the antenna performance of the antenna assembly 100, and meanwhile, the specific absorption rate of the human body to the electromagnetic wave signals transmitted by the second antenna unit 20 cannot be increased, so that the intelligent adjustment of the radiation performance of the electronic device 1000 is realized, and the safety performance of the electronic device 1000 is improved.

Referring to fig. 30, the first isolation device 71 further includes a third sub-isolation device 712. The third sub-isolation device 712 is disposed between the first radiator 11 and the first frequency-selective filter circuit M1 and between the first ground G1 and the first reference ground GND1, and is configured to isolate the second sub-sensing signal generated when the body to be detected approaches the first radiator 11 and conduct the electromagnetic wave signal received and transmitted by the first radiator 11. Specifically, the third sub-isolation device 712 includes an isolation capacitor. The third sub-isolation device 712 is used to make the first radiator 11 in a "floating" state with respect to the dc signal.

In a first possible implementation manner, referring to fig. 30, the second sub sensing device 801 is configured to enable the second radiator 21 to generate a third sensing signal through a coupling effect of the first radiator 11 and the second radiator 21, and further configured to sense a magnitude of the third sensing signal.

In this embodiment, the first radiator 11 and the second radiator 21 are both used as sensing electrodes for sensing the approach of the body to be detected, and the approach sensing path of the first radiator 11 is from the first radiator 11, the second radiator 21 to the first sub-sensing device 801. In other words, when the body to be detected is close to the first radiator 11, the first radiator 11 generates a second sub sensing signal, and the second sub sensing signal enables the second radiator 21 to generate a third sub sensing signal through a coupling effect, so that the first sub sensing device 801 can sense the body to be detected at the first radiator 11. Without using two sensing devices, the coupling effect between the first radiator 11 and the second radiator 21 and the first sub-sensing device 801 are fully utilized, so that the first radiator 11 and the second radiator 21 can be reused during proximity detection, the utilization rate of the devices is increased, the number of the devices is reduced, and the integration and miniaturization of the electronic device 1000 are further promoted.

In a second possible implementation, referring to fig. 31, the second isolation device 72 further includes a fourth sub-isolation device 722. One end of the fourth sub-isolator 722 is electrically connected between the first radiator 11 and the third sub-isolator 712 or electrically connected to the first radiator 11, and is configured to isolate the electromagnetic wave signal received and transmitted by the first radiator 11 and conduct the second sub-sensing signal. Specifically, the fourth sub-isolation device 722 includes an isolation inductor.

Further, referring to fig. 31, the first sensing device 81 further includes a second sub-sensing device 802, and the second sub-sensing device 802 is electrically connected to the other end of the fourth sub-isolation device 722 for sensing the magnitude of the second sub-sensing signal. Specifically, the first radiator 11 and the second radiator 21 are sensing electrodes for sensing the approach of the body to be detected, and the approach sensing path of the first radiator 11 is independent of the approach sensing path of the second radiator 21, so that the approach of the body to be detected to the first radiator 11 or the second radiator 21 can be accurately detected, and the approach behavior can be responded in time. Specifically, when the body to be detected is close to the first radiator 11, the second sub-sensing signal generated by the first radiator 11 is a direct current signal. The electromagnetic wave signal is an alternating current signal. The third sub-isolation devices 712 are disposed between the first radiator 11 and the first frequency-selective filter circuit M1 and between the first ground G1 and the first reference ground GND1, so that the second sub-sensing signal does not flow to the first frequency-selective filter circuit M1 and the first reference ground GND1 through the first radiator 11, thereby affecting the signal transceiving of the first antenna unit 10. By disposing the fourth sub-isolation device 722 between the second sub-sensing device 802 and the first radiator 11, the electromagnetic wave signal does not flow to the second sub-sensing device 802 through the first radiator 11, and the sensing efficiency of the second sub-sensing device 802 for the second sub-sensing signal is improved.

In other embodiments, the coupling of the second radiator 21 with the first radiator 11 may be used to transmit the sensing signal of the second radiator 21 to the second sub sensing device 802 through the first radiator 11.

In a third possible implementation, referring to fig. 32, the other end of the fourth sub-isolation device 722 is electrically connected to the first sub-sensing device 801. The first radiator 11 and the second radiator 21 generate a coupling induction signal when capacitively coupled. The first sub-sensing device 801 is also used for inductively coupling the variation of the sensing signal when the body to be detected is close to the first radiator 11 and/or the second radiator 21.

Specifically, the first radiator 11 and the second radiator 12 generate a constant electric field when coupled, which is expressed as a stable coupled induction signal. When a human body approaches the constant electric field, the constant electric field changes, which is expressed as a change of the coupling induction signal, and the approach of the human body is detected according to the change amount of the coupling induction signal.

In the present embodiment, the first radiator 11 and the second radiator 12 are simultaneously used as the inductive electrodes, and it is possible to accurately detect when a human body approaches the region corresponding to the first radiator 11, the region corresponding to the second radiator 12, and the region corresponding to the first slit 101. Without using two sensing devices, the coupling effect between the first radiator 11 and the second radiator 21 and the proximity sensing device 81 are fully utilized, so that the first radiator 11 and the second radiator 21 can be reused during proximity detection, the utilization rate of the devices is increased, the number of the devices is reduced, and the integration and miniaturization of the electronic device 1000 are further promoted.

The present application is not limited to the specific structure of the second sub-sensing device 802, and the second sub-sensing device 802 includes, but is not limited to, a sensor for sensing a capacitance change or an inductance change.

Referring to fig. 32, fifth sub-isolation devices 713 are disposed between the third radiator 31 and the third frequency-selective filter circuit M3, and between the third radiator 31 and the third reference ground GND3, so that the third radiator 31 can also detect the approaching of the body to be detected. The third radiator 31 serves as an inductive electrode for sensing the approach of the human body, and a specific inductive path thereof may be independent of the inductive path of the second radiator 21, or may be transmitted to the proximity sensing device 81 by coupling with the second radiator 21, or may generate a coupling inductive signal when forming capacitive coupling with the second radiator 21, and transmit the coupling inductive signal to the proximity sensing device 81. For a specific implementation, reference may be made to an implementation in which the first radiator 11 serves as an induction electrode, and details are not described herein.

The first radiator 11, the second radiator 21, and the third radiator 31 all form a detection electrode, so that the area of the detection electrode can be increased, the approach of the main body to be detected can be detected in a wider range, and the adjustment accuracy of the radiation performance of the electronic device 1000 can be further improved.

The radiator on the first antenna module 110 can also multiplex the radiator on the first antenna module 110 as the induction electrode that the body is close to be detected such as human body when receiving and dispatching the electromagnetic wave signal, and isolate induction signal and electromagnetic wave signal respectively through the first isolation device 71, the second isolation device 72, the communication performance of the first antenna module 110 and the effect of the body to be detected by induction are realized, the radiation performance of the electronic equipment 1000 is realized to be intelligently adjustable, the safety performance of the electronic equipment 1000 is improved, the device utilization rate of the electronic equipment 1000 is also improved, and the whole volume of the electronic equipment 1000 is reduced.

The following describes the structure of the fourth antenna unit 40, the fifth antenna unit 50, and the sixth antenna unit 60 of the second antenna module 120 in detail with reference to the accompanying drawings.

Referring to fig. 33, the fourth antenna unit 40 includes a fourth radiator 41, a fourth signal source 42 and a fourth frequency-selective filter circuit M4.

Referring to fig. 30, the fourth radiator 41 includes a third ground G3 and a fifth coupling end H5 disposed opposite to each other, and a fourth feeding point a' disposed between the third ground G3 and the fifth coupling end H5.

The third ground terminal G3 is electrically connected to the reference ground 70. The third ground G3 is electrically connected to the first reference ground GND 1.

The fourth frequency-selective filter circuit M4 is disposed between the fourth feeding point a' and the fourth signal source 42. Specifically, the fourth signal source 42 is electrically connected to the input terminal of the fourth frequency-selective filter circuit M4, and the output terminal of the fourth frequency-selective filter circuit M4 is electrically connected to the fourth feeding point a' of the fourth radiator 41. The fourth signal source 42 is configured to generate an excitation signal (also referred to as a radio frequency signal), and the fourth frequency selective filter circuit M4 is configured to filter clutter of the excitation signal transmitted by the fourth signal source 42 to obtain an excitation signal in a medium-high frequency and an ultrahigh frequency range, and transmit the excitation signal in the medium-high frequency and the ultrahigh frequency range to the fourth radiator 41, so that the fourth radiator 41 receives and transmits a fourth electromagnetic wave signal.

Referring to fig. 33, the fifth antenna unit 50 includes a fifth radiator 51, a fifth signal source 52 and a fifth frequency-selecting filter circuit M5.

Referring to fig. 33, the fifth radiator 51 includes a sixth coupling end H6 and a seventh coupling end H7 disposed opposite to each other, and a fifth feeding point C' disposed between the sixth coupling end H6 and the seventh coupling end H7.

The sixth coupling end H6 and the fifth coupling end H5 are spaced apart from each other to form a third slit 103. In other words, the third slot 103 is formed between the fifth radiator 51 and the fourth radiator 41. The fourth radiator 41 and the fifth radiator 51 are capacitively coupled through the third slot 103.

The size of the third slot 103 is not specifically limited in the present application, and in the present embodiment, the size of the third slot 103 is less than or equal to 2mm, but is not limited to the size, so as to form the capacitive coupling between the fourth radiator 41 and the fifth radiator 51.

The fifth frequency-selective filter circuit M5 is disposed between the fifth feeding point C' and the fifth signal source 52. Specifically, the fifth signal source 52 is electrically connected to the input end of the fifth frequency-selective filter circuit M5, and the output end of the fifth frequency-selective filter circuit M5 is electrically connected to the fifth radiator 51. The fifth signal source 52 is configured to generate an excitation signal, and the fifth frequency-selective filter circuit M5 is configured to filter clutter of the excitation signal transmitted by the fifth signal source 52 to obtain an excitation signal of a low frequency band, and transmit the excitation signal of the low frequency band to the fifth radiator 51, so that the fifth radiator 51 receives and transmits the fifth electromagnetic wave signal.

The sixth antenna element 60 is used for transceiving a sixth electromagnetic wave signal. The minimum value of the third frequency band is greater than the maximum value of the second frequency band.

Referring to fig. 33, the sixth antenna unit 60 includes a sixth signal source 62, a sixth frequency-selective filter circuit M6 and a sixth radiator 61. A fourth slot 104 is formed between the sixth radiator 61 and the fifth radiator 51. The sixth radiator 61 is capacitively coupled to the fifth radiator 51 through the fourth slot 104. Specifically, the sixth radiator 61 includes an eighth coupling end H8 and a fourth ground end G4 disposed at both ends, and a sixth feeding point E' disposed between the eighth coupling end H8 and the fourth ground end G4. A fourth slit 104 is formed between the eighth coupling end H8 and the seventh coupling end H7. One end of the sixth frequency-selective filter circuit M6 is electrically connected to the sixth feeding point E', and the other end of the sixth frequency-selective filter circuit M6 is electrically connected to the sixth signal source 62. Optionally, when the second antenna module 120 is applied to the electronic device 1000, the sixth signal source 62 and the sixth frequency-selective filter circuit M6 are both disposed on the main board 200. Optionally, the sixth signal source 62 is the same as the fourth signal source 42 and the fifth signal source 52, or the sixth signal source 62 is different from the fourth signal source 42 and the fifth signal source 52. The sixth frequency-selective filter circuit M6 is used for filtering the noise wave of the radio frequency signal transmitted by the sixth signal source 62, so that the sixth antenna element 60 can transmit and receive the sixth electromagnetic wave signal.

When the second antenna module 120 is applied to the electronic device 1000, the fourth signal source 42, the fifth signal source 52, the fourth frequency-selective filter circuit M4, the fifth frequency-selective filter circuit M5, the sixth signal source 62, and the sixth frequency-selective filter circuit M6 may all be disposed on the main board 200 of the electronic device 1000. In this embodiment, the fourth frequency-selective filter circuit M4, the fifth frequency-selective filter circuit M5, and the sixth frequency-selective filter circuit M6 are disposed to enable the fourth antenna unit 40, the fifth antenna unit 50, and the sixth antenna unit 60 to transmit and receive electromagnetic wave signals of different frequency bands, respectively, thereby improving the isolation between the fourth antenna unit 40, the fifth antenna unit 50, and the sixth antenna unit 60.

Referring to fig. 34 and 35, fig. 34 is an equivalent circuit diagram of the fourth antenna unit 40, and fig. 35 is a diagram of a resonant mode generated by the fourth antenna unit 40.

Referring to fig. 34 and 35, the fourth antenna element 40 is used for generating a plurality of resonant modes. Also, at least one resonant mode is generated by the capacitive coupling of the fourth radiator 41 and the fifth radiator 51.

Referring to fig. 34 and 35, the plurality of resonant modes generated by the fourth antenna unit 40 at least include a first sub-resonant mode a ', a second sub-resonant mode b', a third sub-resonant mode c ', and a fourth sub-resonant mode d'. It should be noted that the resonant modes generated by the fourth antenna element 40 include other modes besides the above-listed resonant modes, and the above four resonant modes are only relatively efficient modes.

Referring to fig. 36, the electromagnetic waves of the second sub-resonant mode b 'and the third sub-resonant mode c' are generated by coupling the fourth radiator 41 and the fifth radiator 51. The frequency band of the first sub-resonance mode a ', the frequency band of the second sub-resonance mode b', the frequency band of the third sub-resonance mode c 'and the frequency band of the fourth sub-resonance mode d' correspond to the first sub-frequency band, the second sub-frequency band, the third sub-frequency band and the fourth sub-frequency band, respectively. In one embodiment, the first sub-band is 1900-2000 MHz; the second sub-frequency band is 2600-2700 MHZ; the third sub-frequency band is 3800-3900 MHZ; the fourth frequency sub-band is 4700-4800 MHZ. In other words, the plurality of first resonance modes are located in the mid-high frequency band (1000MHz-3000MHz) and the ultra-high frequency band (3000MHz-10000 MHz). By adjusting the resonant frequency point of the resonant mode, the fourth antenna unit 40 can fully cover medium-high frequency and ultrahigh frequency, and obtain higher efficiency in a required frequency band.

By designing the third slot 103 between the fourth radiator 41 of the fourth antenna unit 40 and the fifth radiator 50 and the fifth radiator 51, wherein the fourth antenna unit 40 is configured to receive and transmit electromagnetic wave signals of a relatively high frequency band, and the fifth antenna unit 50 is configured to receive and transmit electromagnetic wave signals of a relatively low frequency band, on one hand, when the second antenna module 120 operates, the fourth radiator 41 and the fifth radiator 51 can be capacitively coupled to generate electromagnetic wave signals of more modes, thereby increasing the bandwidth of the second antenna module 120, and on the other hand, the higher one and the lower one of the frequency bands of the fourth antenna unit 40 and the fifth antenna unit 50 effectively increase the isolation between the fourth antenna unit 40 and the fifth antenna unit 50, thereby facilitating the second antenna module 120 to radiate electromagnetic wave signals of a desired frequency band, and since the radiators between the fourth antenna unit 40 and the fifth antenna unit 50 realize mutual multiplexing, the multi-antenna unit is integrated, so that the second antenna module 120 can increase the bandwidth and reduce the overall size of the second antenna module 120, which is beneficial to the overall miniaturization of the electronic device 1000.

The embodiments in which the fourth antenna element 40 and the fifth antenna element 50 form transceiving of electromagnetic waves of different frequency bands include, but are not limited to, the following embodiments.

Specifically, the fourth signal source 42 and the fifth signal source 52 may be the same signal source or different signal sources.

It is understood that the fourth frequency-selective filter circuit M4 includes, but is not limited to, capacitors, inductors, resistors, etc. arranged in series and/or in parallel, and the fourth frequency-selective filter circuit M4 may include a plurality of branches formed by capacitors, inductors, resistors connected in series and/or in parallel, and switches for controlling on/off of the plurality of branches. By controlling the on/off of the switches, the frequency-selecting parameters (including resistance, inductance, and capacitance) of the fourth frequency-selecting filter circuit M4 can be adjusted, and then the filtering range of the fourth frequency-selecting filter circuit M4 is adjusted, so that the fourth antenna unit 40 can transmit and receive the fourth electromagnetic wave signal. The fifth frequency-selective filter circuit M5 may refer to the circuit composition of the fourth frequency-selective filter circuit M4, but the structure of the fifth frequency-selective filter circuit M5 is different from that of the fourth frequency-selective filter circuit M4. The fourth frequency-selective filter circuit M4 and the fifth frequency-selective filter circuit M5 may also be referred to as matching circuits. The structure of the fourth frequency-selective filter circuit M4 includes at least one circuit of fig. 12 to 19. The structure of the fifth frequency-selective filter circuit M5 includes at least one circuit of fig. 12 to 19.

Referring to fig. 36 and 37, fig. 36 is an equivalent circuit diagram of the fifth antenna element 50, and fig. 37 is a diagram of a resonant mode generated by the fifth antenna element 50.

Referring to fig. 37, the fifth antenna unit 50 generates a fifth sub-resonant mode e' during operation. The frequency band of the fifth sub-resonant mode e' is below 1000MHz, for example, 500-1000 MHz. By adjusting the resonant frequency point of the resonant mode, the fifth antenna unit 50 can fully cover low frequencies and obtain higher efficiency in a required frequency band. In this way, the fifth antenna unit 50 can transmit electromagnetic wave signals of low frequency bands, for example, all of the electromagnetic wave signals of low frequency bands of 4G (also called Long Term Evolution, LTE) and 5G (also called New Radio, NR). When the fifth antenna unit 50 and the fourth antenna unit 40 work simultaneously, the electromagnetic wave signals of all low frequency bands, medium frequency bands and ultrahigh frequency bands of 4G and 5G can be simultaneously covered, including LTE-1/2/3/4/7/32/40/41, NR-1/3/7/40/41/77/78/79, Wi-Fi 2.4G, Wi-Fi 5G, GPS-L1, GPS-L5, and the like, so that ultra wide band Carrier Aggregation (CA) and dual connectivity (LTE NR Double Connect, endec) combination of a 4G radio access network and a 5G-NR are realized.

Referring to fig. 38 and 39, fig. 38 is an equivalent circuit diagram of the sixth antenna element 60, and fig. 39 is a diagram of a resonant mode generated by the sixth antenna element 60.

The sixth antenna element 60 is used to generate a plurality of resonant modes. At least one resonant mode is generated by capacitive coupling of the fifth radiator 51 to the sixth radiator 61.

Referring to fig. 36, the plurality of resonant modes generated by the sixth antenna unit 60 at least include a sixth sub-resonant mode f, a seventh sub-resonant mode g ', an eighth sub-resonant mode h ', and a ninth sub-resonant mode i '. It should be noted that the plurality of resonant modes generated by the sixth antenna element 60 also include other modes besides the above-listed resonant modes, and the above four resonant modes are only relatively efficient modes.

The frequency bands of the sixth sub-resonance mode f, the seventh sub-resonance mode g ', the eighth sub-resonance mode h ' and the ninth sub-resonance mode i ' respectively correspond to the fifth sub-frequency band, the sixth sub-frequency band, the seventh sub-frequency band and the eighth sub-frequency band. In one embodiment, the fifth sub-band is 1900-2000 MHz; the sixth frequency sub-band is 2600-2700 MHZ; the seventh sub-frequency band is 3800-3900 MHZ; the eighth frequency sub-band is between 4700 MHZ and 4800 MHZ. In other words, the plurality of second resonance modes are located in the mid-high frequency band (1000MHz-3000MHz) and the ultra-high frequency band (3000MHz-10000 MHz). By adjusting the resonant frequency point of the resonant mode, the sixth antenna unit 60 can fully cover medium-high frequency and ultrahigh frequency, and obtain higher efficiency in a required frequency band.

Alternatively, the structure of the sixth antenna element 60 is the same as that of the fourth antenna element 40. The capacitive coupling between the sixth antenna element 60 and the fifth antenna element 50 is the same as the capacitive coupling between the fourth antenna element 40 and the fifth antenna element 50. As can be seen, when the second antenna module 120 is operated, the sixth driving signal generated by the sixth signal source 62 can be coupled to the fifth radiator 51 through the sixth radiator 61. In other words, the sixth antenna unit 60 can utilize not only the sixth radiator 61 but also the fifth radiator 51 of the fifth antenna unit 50 to transmit and receive electromagnetic wave signals during operation, so that the operating bandwidth of the sixth antenna unit 60 is increased without adding additional radiators.

Since the fourth antenna unit 40, the fifth antenna unit 50 and the sixth antenna unit 60 are respectively configured to transmit and receive medium-high and high-high frequencies, low frequencies and medium-high and high-high frequencies, the frequency bands of the fourth antenna unit 40 and the fifth antenna unit 50 and the frequency bands of the fifth antenna unit 50 and the sixth antenna unit 60 are isolated from each other to avoid mutual signal interference, and the physical distances of the fourth antenna unit 40 and the sixth antenna unit 60 are isolated from each other to avoid mutual signal interference, so as to control the second antenna module 120 to transmit and receive electromagnetic wave signals of a required frequency band.

In addition, the fourth antenna unit 40 and the sixth antenna unit 60 may be disposed at different orientations or positions on the electronic device 1000, so as to switch between different scenes, for example, the fourth antenna unit 40 and the sixth antenna unit 60 may be switched when the electronic device 1000 switches between a landscape screen and a portrait screen, or the fourth antenna unit 40 may be switched to the sixth antenna unit 60 when the fourth antenna unit 40 is shielded, and switched to the fourth antenna unit 40 when the sixth antenna unit 60 is shielded, so as to have better transceiving of the medium-high ultrahigh-frequency electromagnetic waves in different scenes.

In this embodiment, the second antenna module 120 is exemplified to have the fourth antenna unit 40, the fifth antenna unit 50, and the sixth antenna unit 60, and the tuning manner for realizing electromagnetic wave signal coverage of all low-frequency bands, medium-frequency bands, and ultrahigh-frequency bands of 4G and 5G is exemplified.

Referring to fig. 40, the fifth radiator 51 includes a second coupling point B'. The second coupling point B' is located between the sixth coupling end H6 and the seventh coupling end H7. The portion from the second coupling point B' to the end of the fifth radiator 51 is used for coupling with other adjacent radiators.

Referring to fig. 40, when the second coupling point B ' is disposed near the sixth coupling end H6 (e.g., C ' in fig. 37), the fifth radiator 51 between the second coupling point B ' and the sixth coupling end H6 is coupled to the fourth radiator 41. Further, the fifth radiator 51 between the second coupling point B' and the sixth coupling end H6 is configured to be capacitively coupled to the fourth radiator 41. The length between the second coupling point B' and the sixth coupling end H6 is about 1/4 λ 1. Where λ 1 is the wavelength of the fourth electromagnetic wave signal.

When the second coupling point B ' is located near the seventh coupling end H7 (e.g., D ' in fig. 37), the fifth radiator 51 between the second coupling point B ' and the seventh coupling end H7 is coupled to the sixth radiator 61. And the second coupling point B' and the seventh coupling end H7 are configured to be capacitively coupled to the sixth radiator 61. The length between the second coupling point B' and the seventh coupling end H7 is about 1/4 λ 2. Where λ 2 is the wavelength of the sixth electromagnetic wave signal.

In the embodiment of the present application, the second coupling point B 'is taken as an example near the sixth coupling end H6, but the following arrangement of the second coupling point B' is also applicable to the case near the seventh coupling end H7.

The second coupling point B ' is used for grounding, so that a fourth driving signal emitted by the fourth signal source 42 is filtered by the fourth frequency-selective filter circuit M4 and transmitted from the fourth feeding point a ' to the fourth radiator 41, and the driving signal has different action modes on the fourth radiator 41, for example, the fourth driving signal acts from the fourth feeding point a ' toward the third ground terminal G3 and enters the reference ground terminal 70 at the third ground terminal G3 to form an antenna loop; the fourth driving signal acts from the fourth feeding point a ' toward the fifth coupling end H5, is coupled to the sixth coupling end H6 and the second coupling point B ' through the third slot 103, and enters the reference ground 70 from the second coupling point B ', forming another coupled antenna loop.

Specifically, the fourth antenna element 40 generates the first sub-resonant mode a' when operating in the fundamental mode of the third ground terminal G3 to the fifth coupling terminal H5. Specifically, when the fourth excitation signal generated by the fourth signal source 42 acts between the third ground terminal G3 and the sixth coupling terminal H6, the first sub-resonance mode a ' is generated, and the efficiency at the resonance frequency point corresponding to the first sub-resonance mode a ' is higher, so that the communication quality of the electronic device 1000 at the resonance frequency point corresponding to the first sub-resonance mode a ' is improved.

Referring to fig. 33, the fourth antenna unit 40 further includes a third frequency modulation circuit T3. In one embodiment, the third frequency modulation circuit T3 is used for matching adjustment, and specifically, one end of the third frequency modulation circuit T3 is electrically connected to the fourth frequency-selective filter circuit M4, and the other end of the third frequency modulation circuit T3 is grounded.

In another embodiment, referring to fig. 37, the third tuning circuit T3 is used for aperture adjustment, specifically, one end of the third tuning circuit T3 is electrically connected between the third ground G3 and the fourth feeding point a', and the other end of the third tuning circuit T3 is grounded. In both of the above two connection manners, the third frequency modulation circuit T3 is used to adjust the resonance frequency point of the first sub-resonance mode a' by adjusting the impedance of the fourth radiator 41.

In one embodiment, the third frequency modulation circuit T3 includes, but is not limited to, a capacitor, an inductor, a resistor, etc. connected in series and/or in parallel, and the third frequency modulation circuit T3 may include a plurality of branches formed by capacitors, inductors, and resistors connected in series and/or in parallel, and a switch for controlling on/off of the plurality of branches. By controlling the on/off of the different switches, the frequency selection parameters (including resistance, inductance, and capacitance) of the third frequency modulation circuit T3 can be adjusted, and then the impedance of the fourth radiator 41 is adjusted, and further the resonance frequency point of the first sub-resonance mode a' is adjusted to be shifted toward the high frequency band or the low frequency band. In this way, the frequency coverage of the fourth antenna unit 40 in a wider frequency band can be realized by adjusting the frequency modulation parameter of the third frequency modulation circuit T3. The specific structure of the third frequency modulation circuit T3 can refer to the specific structure of the fourth frequency-selecting filter circuit M4.

In another embodiment, the third frequency modulation circuit T3 includes, but is not limited to, a variable capacitor. The capacitance of the variable capacitor is adjusted to adjust the frequency modulation parameter of the third frequency modulation circuit T3, and then the impedance of the fourth radiator 41 is adjusted to adjust the resonance frequency point of the first sub-resonance mode a'.

The fourth antenna element 40 generates a second sub-resonant mode B 'when operating in the fundamental mode of the sixth coupling end H6 and the second coupling point B'. The resonance frequency point of the second sub-resonance mode b 'is larger than that of the first sub-resonance mode a'. Specifically, when the fourth excitation signal generated by the fourth signal source 42 acts between the sixth coupling end H6 and the second coupling point B ', a second sub-resonance mode B' is generated, and the efficiency at the resonance frequency point corresponding to the second sub-resonance mode B 'is higher, so that the communication quality of the electronic device 1000 at the resonance frequency point corresponding to the second sub-resonance mode B' is improved.

Referring to fig. 4 and 33, the fifth frequency-selective filter circuit M5 is used for aperture adjustment, specifically, one end of the fifth frequency-selective filter circuit M5 is electrically connected to the second coupling point B ', and one end of the fifth frequency-selective filter circuit M5 away from the second coupling point B' is used for grounding. The fifth frequency-selecting filter circuit M5 adjusts the resonance frequency point of the second sub-resonance mode b' by adjusting the impedance of the fifth radiator 51.

The fourth antenna element 40 generates a third sub-resonant mode c 'when operating in the fundamental mode from the fourth feeding point a' to the fifth coupling terminal H5. The resonance frequency point of the third sub-resonance mode c 'is larger than that of the third sub-resonance mode c'.

Specifically, when the fourth excitation signal generated by the fourth signal source 42 acts between the fourth feeding point a 'and the fifth coupling end H5, a third sub-resonance mode c' is generated, and the transceiving efficiency at the resonance frequency point corresponding to the third sub-resonance mode c 'is higher, so as to improve the communication quality of the electronic device 1000 at the resonance frequency point corresponding to the third sub-resonance mode c'.

Referring to fig. 33, the fifth radiator 51 further includes a second tuning point F'. The second frequency modulation point F 'is located between the sixth coupling end H6 and the second coupling point B'. The fifth antenna element 50 further comprises a fifth frequency modulation circuit T4. In one embodiment, the fifth frequency modulation circuit T4 is used for aperture adjustment, and specifically, one end of the fifth frequency modulation circuit T4 is electrically connected to the second frequency modulation point F', and the other end of the fifth frequency modulation circuit T4 is grounded. In another embodiment, the fifth frequency modulation circuit T4 is used for matching adjustment, specifically, one end of the fifth frequency modulation circuit T4 is electrically connected to the fifth frequency-selecting filter circuit M5, and the other end of the fifth frequency modulation circuit T4 is grounded. The fifth frequency modulation circuit T4 is used to adjust the resonance frequency point of the second sub-resonance mode b 'and the resonance frequency point of the third sub-resonance mode c'.

The fifth frequency modulation circuit T4 adjusts the resonant frequency point of the third sub-resonant mode c 'by adjusting the impedance of the portion of the fourth radiator 41 between the sixth coupling end H6 and the second coupling point B'.

In one embodiment, the fifth frequency modulation circuit T4 includes, but is not limited to, a capacitor, an inductor, a resistor, etc. connected in series and/or in parallel, and the fifth frequency modulation circuit T4 may include a plurality of branches formed by capacitors, inductors, and resistors connected in series and/or in parallel, and a switch for controlling on/off of the plurality of branches. By controlling the on/off of the different switches, the frequency selection parameters (including the resistance, the inductance, and the capacitance) of the fifth frequency modulation circuit T4 can be adjusted, and then the impedance of a part of the fourth radiator 41 between the sixth coupling end H6 and the second coupling point B 'is adjusted, so that the resonant frequency point or the nearby resonant frequency point of the third sub-resonant mode c' received and transmitted by the fourth antenna unit 40 shifts toward the high frequency band or the low frequency band. In this way, the frequency coverage of the fourth antenna unit 40 in the wide frequency band can be realized by adjusting the frequency modulation parameter of the fourth frequency modulation circuit T4.

The specific structure of the fourth frequency modulation circuit T4 is not specifically limited in the present application, and the adjustment manner thereof is also not specifically limited.

In another embodiment, the fourth tuning circuit T4 includes, but is not limited to, a variable capacitor. By adjusting the capacitance of the variable capacitor, the frequency modulation parameter of the fourth frequency modulation circuit T4 is adjusted, and then the impedance of a portion of the fourth radiator 41 between the sixth coupling end H6 and the second coupling point B 'is adjusted, so as to adjust the resonant frequency point of the third sub-resonant mode c'.

The fourth antenna element 40 generates the fourth sub-resonant mode d' when operating in the 3 rd-order modes from the third ground terminal G3 to the fifth coupling terminal H5.

Specifically, when the fourth excitation signal generated by the fourth signal source 42 acts between the fourth feeding point a 'and the fifth coupling end H5, a fourth sub-resonance mode d' is further generated, and the transceiving efficiency at the resonance frequency point corresponding to the fourth sub-resonance mode d 'is higher, so that the communication quality of the electronic device 1000 at the resonance frequency point corresponding to the fourth sub-resonance mode d' is improved. The resonance frequency point of the fourth sub-resonance mode d 'is larger than that of the third sub-resonance mode c'. Similarly, the fourth frequency modulation circuit T4 may adjust the resonance frequency point corresponding to the fourth sub-resonance mode d'.

Of course, in other embodiments, the fifth feeding point C 'may be disposed between the second coupling point B' and the seventh coupling end H7.

The fifth driving signal generated by the fifth signal source 52 is filtered and adjusted by the fifth frequency-selecting filter circuit M5, and then acts between the second frequency-adjusting point F 'and the seventh coupling end H7 to generate the electromagnetic wave of the fifth sub-resonant mode e'.

Further, referring to fig. 33, the fifth radiator 51 further includes a third frequency modulation point D'. The third tuning point D 'is located between the fifth feeding point C' and the seventh coupling end H7. The fifth antenna element 50 further comprises a fifth frequency modulation circuit T5. In one embodiment, the fifth frequency modulation circuit T5 is used for aperture adjustment, and specifically, one end of the fifth frequency modulation circuit T5 is electrically connected to the third frequency modulation point D', and the other end of the fifth frequency modulation circuit T5 is grounded.

In another embodiment, referring to fig. 41, one end of the fifth frequency selective filter circuit M5 is electrically connected to the fifth frequency selective filter circuit M5, and the other end of the fifth frequency modulation circuit T5 is grounded. The fifth frequency modulation circuit T5 is configured to adjust the resonance frequency point of the fifth sub-resonance mode e 'by adjusting the impedance between the second frequency modulation point F' and the seventh coupling end H7.

The length between the second tuning point F' and the seventh coupling end H7 may be about a quarter of the wavelength of the electromagnetic wave in the second frequency band, so that the fifth antenna element 50 has high radiation efficiency.

In addition, the second tuning point F 'is grounded, and the second coupling point B' is a fifth feeding point C ', so that the fifth antenna unit 50 is an inverted F antenna, and in this antenna form, the impedance matching of the fifth antenna unit 50 can be conveniently adjusted by adjusting the position of the fifth feeding point C'.

In one embodiment, the fifth frequency modulation circuit T5 includes, but is not limited to, a capacitor, an inductor, a resistor, etc. connected in series and/or in parallel, and the fifth frequency modulation circuit T5 may include a plurality of branches formed by capacitors, inductors, and resistors connected in series and/or in parallel, and a switch for controlling on/off of the plurality of branches. By controlling the on/off of the different switches, the frequency selection parameters (including the resistance value, the inductance value, and the capacitance value) of the fifth frequency modulation circuit T5 can be adjusted, and then the impedance of part of the fifth radiator 51 between the second frequency modulation point F 'and the seventh coupling end H7 is adjusted, so that the resonance frequency point or the nearby resonance frequency point of the fifth sub-resonance mode e' received and transmitted by the fifth antenna unit 50 shifts toward the high frequency band or the low frequency band. For example, the position is shifted from mode 1 to mode 2, mode 3, and mode 4 in fig. 14. In this way, the frequency coverage of the fifth antenna unit 50 in a wider frequency band can be achieved by adjusting the frequency modulation parameters of the fifth frequency modulation circuit T5.

The specific structure of the fifth frequency modulation circuit T5 is not specifically limited, and the adjustment manner thereof is also not specifically limited.

In another embodiment, the fifth tuning circuit T5 includes, but is not limited to, a variable capacitor. The capacitance value of the variable capacitor is adjusted to adjust the frequency modulation parameter of the fifth frequency modulation circuit T5, and further adjust the impedance of part of the fifth radiator 51 between the second frequency modulation point F 'and the seventh coupling end H7, so as to adjust the resonance frequency point of the fifth sub-resonance mode e'.

The third tuning point D 'is located at the position where the second coupling point B' is close to the seventh coupling end H7. Therefore, the fifth radiator 51 and the sixth radiator 61 between the third tuning point D 'and the seventh coupling end H7 are coupled through the fourth slot 104 to generate the ninth sub-resonant mode i'.

As can be seen from the above, the parameters of the frequency modulation circuit and the frequency modulation circuit are set for adjustment, so that the fourth antenna unit 40 can perform full coverage in the middle-high frequency band and the ultrahigh frequency band, the fifth antenna unit 50 can perform full coverage in the low frequency band, and the sixth antenna unit 60 can perform full coverage in the middle-high frequency band and the ultrahigh frequency band, so that the second antenna module 120 can perform full coverage in the low frequency band, the middle-high frequency band, and the ultrahigh frequency band, and the communication function can be enhanced; the multiplexing of the radiators among the antenna units can make the overall size of the second antenna module 120 smaller, and promote the miniaturization of the whole antenna.

As can be seen from the above, the first antenna module 110 and the second antenna module 120 have similar structures, but the size of the radiator is different, and the radiation frequency band is also different. If the structure of the first antenna module 110 and the second antenna module 120 is summarized, it is defined that the first radiator 11 and the fourth radiator 41 are both first edge radiators. The second radiator 21 and the fifth radiator 51 are defined as intermediate radiators. The third radiator 31 and the sixth radiator 61 are defined as the second edge radiator. The first antenna element 10 and the fourth antenna element 40 are both defined as first edge antenna elements. The second antenna element 20 and the fifth antenna element 50 are defined as middle antenna elements. The third antenna element 30 and the sixth antenna element 60 are defined as the second edge antenna element.

Referring to fig. 11, the first edge radiator includes a first ground G1, a first coupling end H1, and a first feeding point a disposed between the first ground G1 and the first coupling end H1. The intermediate radiator further includes a second coupling end H2, a first coupling point B, a second feeding point C, and a third coupling end H3, which are sequentially arranged. The second coupling end H2 is capacitively coupled to the first coupling end H1 through the first slot 101. The second edge radiator further includes a fourth coupling end H4, a third feeding point E, and a second ground G2, which are sequentially disposed. The fourth coupling end H4 and the third coupling end H3 are capacitively coupled through the second slot 102.

The first edge antenna unit further includes a first frequency-selective filter circuit M1 and a first signal source 12. One end of the first frequency-selective filter circuit M1 is electrically connected to the first feeding point a. The first signal source 12 is electrically connected to the other end of the first frequency-selecting filter circuit M1. The middle antenna unit further includes a first frequency modulation circuit T1, a second frequency-selective filter circuit M2, and a second signal source 22. One end of the first frequency modulation circuit T1 is electrically connected to the first coupling point B. The other end of the first frequency modulation circuit T1 is grounded. One end of the second frequency-selective filter circuit M2 is electrically connected to the second feeding point C. The second signal source 22 is electrically connected to the other end of the second frequency-selecting filter circuit M2. The other end of the second frequency-selecting filter circuit M2 is grounded. The second edge antenna unit further includes a third frequency-selective filter circuit M3 and a third signal source 32. One end of the third frequency-selective filter circuit M3 is electrically connected to the third feeding point E. The third signal source 32 is electrically connected to the other end of the third frequency-selective filter circuit M3. The other end of the third frequency-selecting filter circuit M3 is grounded.

Referring to fig. 42, the second antenna module 120 further includes a third isolation device 73, a fourth isolation device 74 and a proximity sensing device 80. For example, the third isolation device 73 is electrically connected between the fifth radiator 51 and the fifth rf front end unit 85.

Specifically, the number of the third isolation devices 73 is plural. The third isolation device 73 is disposed between the fifth radiator 51 and the fifth frequency-selective filter circuit M5, and between the fifth radiator 51 and the third frequency modulation circuit T3. The third isolation device 73 is used for isolating an approaching sensing signal generated when the body to be detected approaches the fifth radiator 51 and conducting an electromagnetic wave signal received and transmitted by the fifth radiator 51. In particular, the third isolation device 73 comprises at least a dc blocking capacitance. The subject to be detected includes, but is not limited to, a human body.

One end of the fourth isolation device 74 is electrically connected between the fifth radiator 51 and the third isolation device 73, and the fourth isolation device 74 is used for isolating the electromagnetic wave signal received and transmitted by the fifth radiator 51 and conducting the proximity sensing signal. In particular, the fourth isolation device 74 includes at least an isolation inductance.

The proximity sensing device 80 is electrically connected to the other end of the fourth isolation device 74 for sensing the magnitude of the proximity sensing signal.

When the body to be detected is close to the fifth radiator 51, the proximity sensing signal generated by the fifth radiator 51 is a direct current signal. The electromagnetic wave signal is an alternating current signal. By disposing the third isolation device 73 between the fifth radiator 51 and the fifth rf front end unit 85, the proximity sensing signal does not flow to the fifth rf front end unit 85 through the fifth radiator 51, so as to affect the signal transceiving of the second antenna unit 20. By disposing the fourth separation device 74 between the proximity sensing device 80 and the fifth radiator 51 so that the electromagnetic wave signal does not flow to the proximity sensing device 80 through the fifth radiator 51, the sensing efficiency of the proximity sensing device 80 for the proximity sensing signal is improved.

The present application is not limited to a specific structure of the proximity sensing device 80, and the proximity sensing device 80 includes, but is not limited to, a sensor for sensing a capacitance change or an inductance change.

The controller is electrically connected proximate to an end of the sensing device 80 distal from the fourth isolation device 74. The controller is configured to determine whether the body to be detected is close to the fifth radiator 51 according to the magnitude of the proximity sensing signal, and reduce the working power of the fifth antenna unit 50 when the body to be detected is close to the fifth radiator 51. Specifically, when the proximity sensing device 80 detects that the human body approaches the fifth antenna element 50, the transmission power of the fifth antenna element 50 can be reduced, so as to reduce the specific absorption rate of the human body for the electromagnetic wave signals transmitted by the fifth antenna element 50; when the proximity sensing device 80 detects that the human body is far away from the fifth antenna unit 50, the transmitting power of the fifth antenna unit 50 can be increased to improve the antenna performance of the second antenna module 120, and meanwhile, the specific absorption rate of the human body to the electromagnetic wave signals transmitted by the fifth antenna unit 50 cannot be increased, so that the intelligent adjustability of the radiation performance of the electronic device 1000 is realized, and the safety performance of the electronic device 1000 is improved.

Of course, in a further embodiment, referring to fig. 43, a third isolation device 73 is disposed between the fourth radiator 41 and the fourth rf front-end unit 84, and between the fourth radiator 41 and the first reference ground GND1, so that the fourth radiator 41 can also detect the approach of the subject to be detected. Alternatively, the third isolation device 73 is disposed between the sixth radiator 61 and the sixth rf front end unit 86, and between the sixth radiator 61 and the third reference ground GND3, so that the sixth radiator 61 can also detect the approach of the body to be detected. Alternatively, the fourth radiator 41, the fifth radiator 51, and the sixth radiator 61 are all formed as the detection electrode, so that the area of the detection electrode can be increased, the approach of the to-be-detected body can be detected in a wider range, and the adjustment accuracy of the radiation performance of the electronic device 1000 can be further improved.

It can be understood that, for the embodiment that the second radiation unit 123 of the second antenna module 120 is used as the sensing electrode, reference may be made to the embodiment that the first radiation unit 113 of the first antenna module 110 is used as the sensing electrode, and details are not described herein again. In addition, for the implementation of the radiators on the third antenna module 130 and the fourth antenna module 140 as the sensing electrodes, reference may be made to the implementation of the first radiating unit 113 of the first antenna module 110 as the sensing electrode, which is not described herein again.

The irradiator on the second antenna module 120 can also multiplex the irradiator on the second antenna module 120 and detect the induction electrode that the main part is close to for the human body etc. as receiving and dispatching electromagnetic wave signal, and through third isolation device 73, fourth isolation device 74 keeps apart induction signal and electromagnetic wave signal respectively, the communication performance that has realized second antenna module 120 and the effect that the main part was detected in the response, it is adjustable to realize electronic equipment 1000's radiation performance intelligence, and electronic equipment 1000's security performance has been improved, still improve electronic equipment 1000's device utilization ratio, reduce electronic equipment 1000's whole volume.

While the foregoing is directed to embodiments of the present application, it will be appreciated by those skilled in the art that various changes and modifications may be made without departing from the principles of the application, and it is intended that such changes and modifications be covered by the scope of the application.