阅读说明：本技术 毫米波天线装置和电子设备 (Millimeter wave antenna device and electronic apparatus ) 是由 贾玉虎 于 2019-03-20 设计创作，主要内容包括：本申请涉及一种毫米波天线装置和电子设备,其中,毫米波天线装置包括至少一个天线组件,天线组件包括：毫米波模组,与后壳间隔对应设置,用于收发毫米波信号,毫米波信号的波束指向后壳外；介质层,对应设置在后壳的目标区域,目标区域至少包括毫米波模组投影在后壳的区域,介质层与目标区域的后壳共同形成具有介电常数梯度分布的辐射层,辐射层用于改变毫米波信号的波束辐射方向。通过在毫米波模组对应位置的后壳上设置介质层,以在后壳上形成具有介电常数梯度分布的辐射层,可以改变毫米波信号的波束辐射方向,从而提高了毫米波天线装置的增益。(The present application relates to a millimeter wave antenna device and an electronic apparatus, wherein the millimeter wave antenna device includes at least one antenna assembly, the antenna assembly including: the millimeter wave module is arranged corresponding to the rear shell at intervals and used for receiving and transmitting millimeter wave signals, and the wave beams of the millimeter wave signals are directed to the outside of the rear shell; the dielectric layer is correspondingly arranged in a target area of the rear shell, the target area at least comprises an area where the millimeter wave module is projected on the rear shell, the dielectric layer and the rear shell of the target area jointly form a radiation layer with gradient distribution of dielectric constants, and the radiation layer is used for changing the beam radiation direction of millimeter wave signals. The dielectric layer is arranged on the rear shell at the position corresponding to the millimeter wave module, so that the radiation layer with the gradient distribution of the dielectric constant is formed on the rear shell, the beam radiation direction of the millimeter wave signal can be changed, and the gain of the millimeter wave antenna device is improved.)

1. A millimeter-wave antenna device for use in an electronic device, the electronic device including a rear housing, the millimeter-wave antenna device comprising at least one antenna assembly, the antenna assembly comprising:

the millimeter wave module is arranged corresponding to the rear shell at intervals and used for receiving and transmitting millimeter wave signals, and the wave beams of the millimeter wave signals point to the outside of the rear shell;

the dielectric layer is correspondingly arranged in a target area of the rear shell, the target area at least comprises an area where the millimeter wave module is projected on the rear shell, the dielectric layer and the rear shell of the target area jointly form a radiation layer with gradient distribution of dielectric constants, and the radiation layer is used for changing the beam radiation direction of the millimeter wave signals.

2. The millimeter-wave antenna device according to claim 1, characterized in that the dielectric constant of the dielectric layer is higher than the dielectric constant of the rear case.

3. The millimeter-wave antenna device according to claim 1, wherein the target region includes a first region where the millimeter-wave module is orthographically projected on the rear housing, the dielectric layer is disposed in the first region, the dielectric layer and the rear housing of the target region together form a first radiation layer having a convex lens phase distribution, and the first radiation layer is configured to focus a beam of the millimeter-wave signal.

4. The millimeter-wave antenna device according to claim 2, wherein the target region includes a first region where the millimeter-wave module is orthographically projected on the rear case, a second region and a third region on both sides of the first region, the second region partially overlapping or being spaced apart from the first region, and the third region partially overlapping or being spaced apart from the first region, wherein,

the dielectric layer comprises a first dielectric part and a second dielectric part; the first medium part is arranged in the second area, and the second medium part is arranged in the third area, so that the first medium part, the second medium part and the rear shell of the target area jointly form a second radiation layer with concave lens phase distribution, and the second radiation layer is used for changing the beam direction of the millimeter wave signal.

5. The millimeter-wave antenna device according to claim 4, characterized in that the first dielectric portion and the second dielectric portion are symmetrically disposed on both sides of the first region.

6. The millimeter wave antenna device according to any one of claims 4 to 5, characterized in that an interval between the first dielectric portion and the second dielectric portion is 0.5 times to 2 times the wavelength of the millimeter wave signal.

7. The millimeter wave antenna device according to claim 1, wherein the antenna assembly further comprises a first millimeter wave module and a second millimeter wave module, the target area comprises a fourth area and a fifth area which are distributed at intervals, orthographic projections of the first millimeter wave module and the second millimeter wave module are respectively partially located between the fourth area and the fifth area, and the medium layer comprises a third medium part and a fourth medium part which are arranged at intervals; the third dielectric part is arranged in the fourth area, the fourth dielectric part is arranged in the fifth area, the third dielectric part, the fourth dielectric part and the rear shell of the target area jointly form a third radiation layer, and the third radiation layer is used for changing the beam direction of the millimeter wave signal.

8. The millimeter-wave antenna device according to claim 1, wherein the rear housing comprises a first surface and a second surface which are oppositely arranged, and the dielectric layer is arranged on the first surface and/or the second surface.

9. The millimeter-wave antenna device according to claim 1, wherein the dielectric layer is a planar film or a graded film.

10. An electronic device, comprising the millimeter wave antenna device according to any one of claims 1 to 9, and further comprising a millimeter wave radio frequency module connected to the millimeter wave antenna device, for transceiving millimeter wave signals.

Technical Field

The present application relates to the field of antenna technologies, and in particular, to a millimeter wave antenna device and an electronic device.

Background

Millimeter waves (Mm-Wave) are electromagnetic waves between microwaves and light waves, and generally, the frequency band of the Millimeter waves is 30 to 300GHz, the corresponding wavelength is 1 to 10Mm, and the Millimeter waves can provide a wider frequency band. As the amount of information increases rapidly, the throughput of the transmission will increase, and the transmission technology of the mm wave spectrum band has been regarded as one of the key communication technologies with high quality transmission capability.

Generally, when the millimeter wave antenna device receives and transmits millimeter wave signals, beams of the millimeter wave signals can only radiate in a fixed direction, so that the gain of the millimeter wave antenna device is low.

Disclosure of Invention

The embodiment of the application provides a millimeter wave antenna device and an electronic device, which can improve the gain of the millimeter wave antenna device.

A millimeter-wave antenna device for use in an electronic device, the electronic device including a rear housing, the millimeter-wave antenna device comprising at least one antenna assembly, the antenna assembly comprising:

the millimeter wave module is arranged corresponding to the rear shell at intervals and used for receiving and transmitting millimeter wave signals, and the wave beams of the millimeter wave signals point to the outside of the rear shell;

the dielectric layer is correspondingly arranged in a target area of the rear shell, the target area at least comprises an area where the millimeter wave module is projected on the rear shell, the dielectric layer and the rear shell of the target area jointly form a radiation layer with gradient distribution of dielectric constants, and the radiation layer is used for changing the beam radiation direction of the millimeter wave signals.

In addition, an electronic device is also provided, which includes the above millimeter wave antenna device, and further includes a millimeter wave radio frequency module connected to the millimeter wave antenna device, and configured to receive and transmit millimeter wave signals.

The millimeter wave antenna device and the electronic equipment comprise at least one antenna assembly, and the antenna assembly comprises: the millimeter wave module is arranged corresponding to the rear shell at intervals and used for receiving and transmitting millimeter wave signals, and the wave beams of the millimeter wave signals point to the outside of the rear shell; the dielectric layer is correspondingly arranged in a target area of the rear shell, the target area at least comprises an area where the millimeter wave module is projected on the rear shell, the dielectric layer and the rear shell of the target area jointly form a radiation layer with gradient distribution of dielectric constants, and the radiation layer is used for changing the beam radiation direction of the millimeter wave signals. The dielectric layer is arranged on the rear shell at the position corresponding to the millimeter wave module, so that the radiation layer with the gradient distribution of the dielectric constant is formed on the rear shell, the beam radiation direction of the millimeter wave signal can be changed, and the gain of the millimeter wave antenna device is improved.

Drawings

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

FIG. 1 is a perspective view of an electronic device in one embodiment;

fig. 2 is a schematic structural diagram of a millimeter wave antenna device in one embodiment;

FIG. 3a is a schematic diagram of an embodiment of a convex lens phase distribution radiation layer formed on a rear shell;

FIG. 3b is a schematic diagram of another embodiment of a convex lens phase distribution radiation layer formed on the rear shell;

FIG. 4 is a schematic illustration of a convex lens radiation in one embodiment;

FIG. 5a is a schematic diagram of an embodiment of a concave lens phase distribution radiating layer formed on the back shell;

FIG. 5b is a schematic diagram of another embodiment of a concave lens phase distribution radiation layer formed on the back shell;

FIG. 6 is a schematic illustration of a concave lens radiation in one embodiment;

fig. 7a is one of schematic structural diagrams of a millimeter wave antenna device in another embodiment;

FIG. 7b is a second schematic structural diagram of a millimeter-wave antenna device according to another embodiment;

fig. 8 is a block diagram of a partial structure of a mobile phone related to an electronic device provided in an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that, as used herein, the terms "first," "second," and the like may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another. For example, a first region may be termed a second region, and, similarly, a second region may be termed a first region, without departing from the scope of the present application. The first region and the second region are both regions, but they are not the same region.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The millimeter wave antenna device of an embodiment of the present application is applied to an electronic device, which includes a rear case. In one embodiment, the electronic Device may be a communication module including a Mobile phone, a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID), a wearable Device (e.g., a smart watch, a smart bracelet, a pedometer, etc.), or other modules capable of being provided with a millimeter wave antenna module.

As shown in FIG. 1, in an embodiment of the present application, the electronic device 10 may include a display screen assembly, a housing assembly 120, and a controller. The display screen assembly is fixed to the housing assembly 110, and forms an external structure of the electronic device together with the housing assembly 110. The housing assembly 110 may include a middle frame 120 and a rear case 130. The middle frame 120 may be a frame structure having a through hole. The middle frame 120 may be accommodated in an accommodating space formed by the display screen assembly and the rear case 130. The rear housing 130 is used to form the outer contour of the electronic device 10. The rear case 130 may be integrally formed. In the molding process of the rear case 130, structures such as a rear camera hole, a fingerprint recognition module, an antenna device mounting hole, etc. may be formed on the rear case 130. The rear housing 130 may be a non-metal rear housing, for example, the rear housing may be a plastic rear housing, a ceramic rear housing, a 3D glass rear housing, or the like. The controller can control the operation of the electronic device, etc. The display screen component can be used for displaying pictures or fonts and can provide an operation interface for a user.

As shown in fig. 2, in one embodiment, millimeter-wave antenna apparatus 100 includes at least one antenna assembly comprising: millimeter-wave module 110 and dielectric layer 120. Wherein the content of the first and second substances,

the millimeter wave module 110 is disposed corresponding to the rear housing 130 at an interval, and is configured to receive and transmit millimeter wave signals, and beams of the millimeter wave signals are directed to the outside of the rear housing 130.

Millimeter-wave module 110 may include an antenna array, which may be an antenna that processes millimeter-wave signals and may be implemented as a phased antenna array. The antenna array for supporting millimeter wave communications may be an antenna array of patch antennas, dipole antennas, yagi antennas, beam antennas, or other suitable antenna elements. The specific type of the antenna array is not further limited in this embodiment, and the millimeter wave signal may be transmitted and received.

The antenna array may be composed of a number of periodically arranged patch antenna elements. The number of antenna arrays is determined by the specific scan angle and gain requirements. In the embodiment, two-dimensional scanning is taken as an example, and the antenna arrays are arranged in a 1 × 4 rectangle. The 1 x 4 antenna array has higher space coverage, can be structurally placed on the left side and the right side of the mobile phone, and can be properly changed in shape and position if the full-space three-dimensional scanning antenna array is rotationally and symmetrically arranged.

The operating frequency band of the millimeter wave module 110, i.e., the operating frequency band of the antenna array, is a millimeter wave frequency band. Millimeter waves refer to electromagnetic waves having a wavelength on the order of millimeters, and having a frequency of about 30GHz to 300 GHz. The millimeter wave frequency band at least comprises the millimeter wave frequency band of the 5 th generation mobile communication system, and the frequency is 24250MHz-52600 MHz.

The 3GPP has specified a list of frequency bands supported by 5G NR, the 5G NR spectrum range can reach 100GHz, and two frequency ranges are specified: frequency range 1(FR1), i.e. the sub-6 GHz band, and Frequency range 2(FR2), i.e. the millimeter wave band. Frequency range of Frequency range 1: 450MHz-6.0GHz, with a maximum channel bandwidth of 100 MHz. The Frequency range of the Frequency range 2 is 24.25GHz-52.6GHz, and the maximum channel bandwidth is 400 MHz. The near 11GHz spectrum for 5G mobile broadband comprises: 3.85GHz licensed spectrum, for example: 28GHz (24.25-29.5GHz), 37GHz (37.0-38.6GHz), 39GHz (38.6-40GHz) and 14GHz unlicensed spectrum (57-71 GHz). The working frequency bands of the 5G communication system comprise three frequency bands of 28GHz, 39GHz and 60 GHz.

The millimeter wave module 110 is disposed corresponding to the rear housing 130 at an interval, and a millimeter wave signal beam transmitted and received by the millimeter wave module 110 is directed to the outside of the rear housing 130, for example, the millimeter wave module 110 may be disposed on a motherboard disposed at an interval with the rear housing 130, and the millimeter wave signal can be transmitted and received through the rear housing 130. The rear housing 130 may be a non-metal rear housing 130, or may be a metal rear housing 130, and the embodiment is not limited.

The dielectric layer 120 is correspondingly disposed in the target area 140 of the rear shell 130, the target area 140 at least includes an area where the millimeter wave module 110 projects on the rear shell 130, the dielectric layer 120 and the rear shell of the target area 140 together form a radiation layer 150 having a gradient distribution of dielectric constants, and the radiation layer 150 is used for changing a beam radiation direction of the millimeter wave signal.

As shown in fig. 2, dielectric layer 120 is disposed in target area 140 of rear shell 130, and the range of target area 140 is greater than the area where millimeter wave module 110 projects on rear shell 130, and includes the area where millimeter wave module 110 projects on rear shell 130. By disposing the dielectric layer 120 in the target region 140, the dielectric constant distribution of the target region 140 may be changed, so that the radiation layer 150 having a gradient distribution of dielectric constants may be formed on the target region 140, and the millimeter wave module 110 transmits and receives millimeter wave signals through the radiation layer 150. Since the dielectric constant of the radiation layer 150 is distributed in a gradient, the radiation direction of the beam of the millimeter wave signal can be changed, for example, the beam of the millimeter wave signal can be tilted, focused, or diverged, or the like.

It should be noted that, when the rear shell 130 is made of a non-metal material, the target area 140 may be any area corresponding to the millimeter wave module 110, and the correspondence means that the target area is within the radiation range of the millimeter wave module 110; when the rear shell 130 is made of a metal material or other conductive materials, since a gap is to be formed in the rear shell 130 to radiate the millimeter wave signal, the target area 140 may be the rear shell 130 corresponding to the millimeter wave module 110 near the gap, so as to avoid affecting the radiation performance of the millimeter wave module 110.

In this embodiment, the millimeter wave antenna module includes at least one antenna assembly, and the antenna assembly includes: the millimeter wave module 110 is arranged at intervals corresponding to the rear shell 130 and is used for receiving and transmitting millimeter wave signals, and the wave beams of the millimeter wave signals are directed to the outside of the rear shell 130; the dielectric layer 120 is correspondingly disposed in the target area 140 of the rear shell 130, the target area 140 at least includes an area where the millimeter wave module 110 projects on the rear shell 130, the dielectric layer 120 and the rear shell of the target area 140 together form a radiation layer 150 having a gradient distribution of dielectric constants, and the radiation layer 150 is used for changing a beam radiation direction of the millimeter wave signal. By disposing the dielectric layer 120 on the rear shell 130 at a position corresponding to the millimeter wave module 110 to form the radiation layer 150 having a gradient distribution of dielectric constant on the rear shell 130, the beam radiation direction of the millimeter wave signal can be changed, thereby improving the gain of the millimeter wave antenna apparatus 100.

In one embodiment, dielectric layer 120 may be a material with a high dielectric constant, such as a high dielectric constant film. The high dielectric material has a dielectric constant higher than that of SiO₂Material of (2), SiO₂Has a dielectric constant of 3.7, i.e., dielectric layer 120 has a dielectric constant greater than 3.7. For example, barium titanate and lead titanate having a titanium-mineral phase structure may be used, and high dielectric constants such as ceramics, quartz, and polyethylene may be used.

In one embodiment, dielectric layer 120 has a dielectric constant higher than that of back shell 130. The thickness of dielectric layer 120 can be reduced by using dielectric layer 120 having a high dielectric constant, so that the user's feeling can be not affected.

In one embodiment, dielectric layer 120 may have a rectangular, oval, or semi-circular cross-sectional shape in a direction perpendicular to rear housing 130. The specific shape of dielectric layer 120 is not limited in this embodiment.

In an embodiment, the rear housing 130 includes a first surface and a second surface that are opposite to each other, the dielectric layer 120 is disposed on the first surface and/or the second surface, and whether the dielectric layer 120 is disposed on the first surface or the second surface may be determined according to the thickness and the dielectric constant of the dielectric layer 120, which is not further limited in this embodiment.

In one embodiment, the first dielectric part 121 and the second dielectric part 122 are planar films or graded films. The planar thin film may be understood as the thickness of the dielectric layer 120 is maintained constant, and the graded thin film may be understood as the thickness of the dielectric layer 120 is varied, and different types of thin films may form different convex lenses and concave lenses as long as the beam radiation direction of the millimeter wave signal can be changed. The thickness distribution of the first dielectric portion 121 and the second dielectric portion 122 is not limited in this embodiment.

In one embodiment, as shown in fig. 3a and 3b, target area 140 includes first area 141 of rear housing 130 onto which millimeter-wave module 110 is forward projected, dielectric layer 120 is disposed in first area 141, dielectric layer 120 and target area 140 together form first radiation layer 151 having a convex lens phase distribution, and first radiation layer 151 is used for focusing a beam of millimeter-wave signals.

Dielectric layer 120 is disposed in a region where millimeter-wave module 110 is projected on rear housing 130, that is, in first region 141, that is, on rear housing 130 corresponding to the region directly above millimeter-wave module 110. The first region 141 is located at the center of the target region 140, so that the radiation layer 150 having a convex lens phase distribution can be formed in the target region 140, and when the millimeter wave module 110 radiates millimeter wave signals through the radiation layer 150, the millimeter wave signals can be focused at the focal point and radiated along the focal point, thereby improving the directionality of the millimeter wave beam.

The convex lens is a lens with thin two sides and thick middle. In the present embodiment, the thickness corresponds to a phase difference that is theoretically referred to as an electromagnetic wave, and the thickness corresponds to a small phase accumulation after the passage of the electromagnetic wave and a large phase accumulation after the passage of the electromagnetic wave. As shown in the following formula,

wherein phi is_film+coverIs the phase value of the millimeter wave signal beam,_filmis the dielectric constant of dielectric layer 120, d_filmIs the thickness of the dielectric layer 120 and,_coveris the dielectric constant of the rear housing 130, d_coverλ is the operating wavelength of the millimeter wave module, which is the thickness of the rear housing 130. After the millimeter wave signal beam passes through the rear case 130, the phases accumulated in the rear case 130 are:

thus, the remaining phases are:

it can be seen from the above formula that the amount of phase accumulation is proportional to the thickness of dielectric layer 120 and the dielectric constant of dielectric layer 120. Under the condition that the thickness of the dielectric layer 120 is constant, the larger the dielectric constant of the dielectric layer 120 is, the more the phases are accumulated, so that the radiation layer 150 with convex lens phase distribution can be formed more easily, the thickness of the dielectric layer 120 can be reduced, and the user feeling is not affected.

The convex lens phase distribution can be understood as that a radiation layer 150 with different phase difference is formed in the target region 140 of the rear shell 130, and the region of the dielectric layer 120 is arranged, so that the phase difference is large, that is, after the millimeter wave signal passes through the region, the phase is accumulated more; the area without the dielectric layer 120 has a small phase difference, that is, the phase accumulation is small after the millimeter wave signal passes through the area. The dielectric layer 120 is arranged in the first area 141 corresponding to the forward projection of the millimeter wave module 110, so that the phase difference of the first area 141 is increased, and the dielectric layers 120 are not arranged on the two sides of the first area 141, so that the phase difference of the two sides of the first area 141 is smaller than that of the first area 141, and the radiation layer 150 with convex lens phase distribution can be formed in the first area 141 corresponding to the forward projection of the millimeter wave module 110. When millimeter wave module 110 receives and transmits millimeter wave signals, beams of millimeter wave signals in different directions may be focused by dielectric layer 120 and radiated in the extending direction of the focus, so that the directionality of millimeter wave signal beams may be improved, thereby improving the gain of millimeter wave antenna apparatus 100.

As shown in fig. 4, since the millimeter wave has a higher frequency, generally referred to as quasi-optics, by disposing the first radiation layer 151 having a convex lens phase distribution on the corresponding rear shell 130 directly above the millimeter wave module 110, the convex lens also has a characteristic of collecting electromagnetic waves by using the focusing principle of the optical convex lens, on one hand, the directivity of the antenna can be improved, and the pattern distortion of the signal beam radiated by the millimeter wave module 110 can be reduced, thereby improving the gain of the millimeter wave module 110; on the other hand, since the resonant frequency of the millimeter wave module 110 is in inverse proportion to the dielectric constant, the radiation layer 150 made of a high dielectric constant material can reduce the size of the antenna array unit in the millimeter wave module 110, thereby reducing the size of the millimeter wave module 110, and further reducing the area of the motherboard occupied by the millimeter wave module 110.

In one embodiment, as shown in fig. 5a and 5b, the target area 140 includes a first area 141, a second area 142 and a third area 143, which are respectively disposed at two sides of the first area 141 and are orthographically projected on the rear housing by the millimeter wave module, the second area 142 is partially overlapped with or spaced apart from the first area 141, the third area 143 is partially overlapped with or spaced apart from the first area 141, wherein,

dielectric layer 120 includes a first dielectric portion 121 and a second dielectric portion 122; the first dielectric part 121 is disposed in the second region 142, and the second dielectric part 122 is disposed in the third region 143, so that the first dielectric part 121, the second dielectric part 122 and the rear shell of the target region 140 together form a second radiation layer 152 having a concave lens phase distribution, and the second radiation layer 152 is used for changing the beam direction of the millimeter wave signal.

The target region 140 includes a second region 142 and a third region 143 disposed at intervals, wherein the second region 142 may be disposed in an upper left region of the millimeter wave module 110, and the third region 143 may be disposed in an upper right region of the millimeter wave module 110. It is understood that the right region of the second region 142 may coincide with the left side of the first region 141, or may be spaced apart; the left region of the third region 143 may coincide with the right side of the first region 141, or may be spaced apart. The dielectric layer 120 includes a first dielectric portion 121 and a second dielectric portion 122 which are distributed at intervals, wherein the first dielectric portion 121 may be disposed in the second region 142, and the second dielectric portion 122 may be disposed in the third region 143, so as to form a second radiation layer 152 having a concave lens phase distribution in the target region 140 above the millimeter wave module 110. By utilizing the divergence principle of the optical concave lens, on one hand, the beam scanning width of the millimeter wave module 110 can be expanded, thereby improving the space coverage of the millimeter wave module 110; on the other hand, by introducing the dielectric layer 120 having a high dielectric constant, excitation of the surface wave mode can be suppressed to some extent, improving the gain of the millimeter wave antenna device 100.

The concave lens is a lens with thick sides and thin middle. In the present embodiment, the thickness corresponds to a phase difference that is theoretically referred to as an electromagnetic wave, and the thickness corresponds to a small phase accumulation after the passage of the electromagnetic wave and a large phase accumulation after the passage of the electromagnetic wave. The concave lens phase distribution can be understood as that a radiation layer 150 with different phase difference is formed in the target region 140 of the rear shell 130, and the region of the dielectric layer 120 is arranged, so that the phase difference is large, that is, after the millimeter wave signal passes through the region, the phase is accumulated more; the area without the dielectric layer 120 has a small phase difference, that is, the phase accumulation is small after the millimeter wave signal passes through the area. The dielectric layer 120 is arranged in the second region 142 corresponding to the upper left of the millimeter wave module 110 and the third region 143 corresponding to the upper right of the millimeter wave module 110, so that the phase difference between the second region 142 and the third region 143 is increased, and the dielectric layer 120 is not arranged in the first region 141 between the second region 142 and the third region 143, so that the phase difference of the first region 141 is smaller than that of the second region 142 and the third region 143, and the radiation layer 150 with concave lens phase distribution can be formed in the target region 140. As shown in fig. 6, when the millimeter wave module 110 receives and transmits millimeter wave signals, the beam of the millimeter wave signals may be dispersed through the dielectric layer 120, so that the beam scanning width of the millimeter wave module 110 may be expanded, thereby improving the spatial coverage of the millimeter wave module 110.

In an embodiment, the first dielectric portion 121 and the second dielectric portion 122 are symmetrically disposed on two sides of the first region 141, so that the front projection of the millimeter wave module 110 on the rear housing 130 can be located at the center of the target region 140, so as to form the second radiation layer 152 having a concave lens phase distribution right above the millimeter wave module 110, and make the main beam of the millimeter wave radiation coincide with the focal point of the concave lens, so that the coverage of the millimeter wave signal beam can be more effectively expanded.

In one embodiment, the interval between the first dielectric portion 121 and the second dielectric portion 122 is 0.5 to 2 times the wavelength of the millimeter wave signal. The millimeter wave module 110 is orthographically projected on the first region 141 of the rear housing 130 between the first dielectric part 121 and the second dielectric part 122, and the second radiation layer 152 having the concave lens phase distribution can be formed on the target region 140 by respectively disposing the first dielectric part 121 and the second dielectric part 122 on both sides of the first region 141, so that the radiation range of the millimeter wave beam is expanded, excitation of a surface wave mode can be suppressed to a certain extent, and the antenna gain is improved.

Therefore, in the embodiment of the present application, by setting the interval between the first dielectric part 121 and the second dielectric part 122 to be 0.5 to 2 times of the wavelength of the millimeter wave signal, the beam scanning width of the millimeter wave module 110 can be extended, so as to improve the spatial coverage of the millimeter wave module 110, and to a certain extent, the excitation of the surface wave mode can be suppressed, thereby increasing the gain of the millimeter wave antenna apparatus 100.

In an embodiment, as shown in fig. 7a and 7b, the antenna assembly further includes a first millimeter wave module 111 and a second millimeter wave module 112, the target region 140 includes a fourth region 144 and a fifth region 145 that are distributed at intervals, orthogonal projections of the first millimeter wave module 111 and the second millimeter wave module 112 are both partially located between the fourth region 144 and the fifth region 145, and the dielectric layer 120 includes a third dielectric portion 123 and a fourth dielectric portion 124 that are arranged at intervals; the third dielectric portion 123 is disposed in the fourth region 144, the fourth dielectric portion 124 is disposed in the fifth region 145, the third dielectric portion 123, the fourth dielectric portion 124 and the rear shell of the target region 140 together form a third radiation layer 150, and the third radiation layer 150 is configured to change a beam direction of the millimeter wave signal.

The third dielectric part 123 is arranged on the rear shell 130 corresponding to the upper left of the first millimeter wave module 111, namely the fourth dielectric part 124 is arranged on the rear shell 130 corresponding to the upper right of the second millimeter wave module 112, namely the fifth dielectric part 124 is arranged on the fifth region 145, so that the dielectric constants of the fourth region 144 and the fifth region 145 can be improved, the beam of the first millimeter wave module 111 can be inclined to the left side in the direction of 0 degrees, the beam of the first millimeter wave module 111 can be inclined to the right side in the direction of 0 degrees, the first millimeter wave module 111 can cover-90 degrees to 0 degrees, the second millimeter wave module 112 can cover 0 degrees to 90 degrees under the control of the phase shifter, supplementary coverage can be performed through the matching use of the first millimeter wave module 111 and the second millimeter wave module 112, and the space coverage efficiency of the millimeter wave antenna device 100 is greatly improved.

An embodiment of the present application further provides an electronic device, where the electronic device includes the millimeter wave antenna apparatus 100 in any of the above embodiments.

In an embodiment, the millimeter wave antenna apparatus 100 may be disposed inside a frame of an electronic device, and the millimeter wave transmission and reception may be accomplished by opening an antenna window on the frame or using a non-metallic battery cover.

It should be noted that, in order to reduce the influence on the antenna when the electronic device is held by hand, when the millimeter wave antenna apparatus 100 is designed, the millimeter wave antenna apparatus 100 may be closer to the top than to the bottom. Optionally, the millimeter wave antenna devices 100 may also be disposed on two opposite sides of the electronic device in the width direction, and the arrangement direction of each millimeter wave antenna device 100 is the length direction of the mobile electronic device. That is, the millimeter wave antenna device 100 may be disposed at the long side of the electronic apparatus.

The electronic device having the millimeter wave antenna apparatus 100 according to any of the embodiments described above may implement beam scanning of the antenna array, and further implement antenna switching and beam scanning functions required for millimeter wave 5G communication to improve communication quality.

The electronic Device may be a communication module including a Mobile phone, a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID), a wearable Device (e.g., a smart watch, a smart bracelet, a pedometer, etc.), or other settable antenna.

The embodiment of the application also provides the electronic equipment. As shown in fig. 8, for convenience of explanation, only the parts related to the embodiments of the present application are shown, and details of the technology are not disclosed, please refer to the method part of the embodiments of the present application. The electronic device may be any terminal device including a mobile phone, a tablet computer, a PDA (Personal Digital Assistant), a POS (Point of Sales), a vehicle-mounted computer, a wearable device, and the like, taking the electronic device as the mobile phone as an example:

fig. 8 is a block diagram of a partial structure of a mobile phone related to an electronic device provided in an embodiment of the present application. Referring to fig. 8, the handset includes: millimeter wave antenna device 810, memory 820, input unit 830, display unit 840, sensor 850, audio circuit 860, wireless fidelity (WiFi) module 870, processor 880, and power supply 890. Those skilled in the art will appreciate that the handset configuration shown in fig. 8 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The millimeter wave antenna device 810 may be used for receiving and transmitting signals during information transmission and reception or during a call, and may receive downlink information of a base station and then process the downlink information to the processor 880; the uplink data may also be transmitted to the base station. Generally, millimeter-wave antenna devices include, but are not limited to, antennas, at least one Amplifier, transceivers, couplers, Low Noise Amplifiers (LNAs), duplexers, and the like. Further, millimeter-wave antenna device 810 may also communicate with networks and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to Global System for mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), etc.

The memory 820 may be used to store software programs and modules, and the processor 880 executes various functional applications and data processing of the cellular phone by operating the software programs and modules stored in the memory 820. The memory 820 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function (such as an application program for a sound playing function, an application program for an image playing function, and the like), and the like; the data storage area may store data (such as audio data, an address book, etc.) created according to the use of the mobile phone, and the like. Further, the memory 820 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 830 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone 800. Specifically, the input unit 830 may include a touch panel 831 and other input devices 832. The touch panel 831, which may also be referred to as a touch screen, may collect touch operations performed by a user on or near the touch panel 831 (e.g., operations performed by the user on the touch panel 831 or near the touch panel 831 using any suitable object or accessory such as a finger, a stylus, etc.) and drive the corresponding connection device according to a preset program. In one embodiment, the touch panel 831 can include two portions, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts it to touch point coordinates, and sends the touch point coordinates to the processor 880, and can receive and execute commands from the processor 880. In addition, the touch panel 831 may be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The input unit 830 may include other input devices 832 in addition to the touch panel 831. In particular, other input devices 832 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), and the like.

The display unit 840 may be used to display information input by the user or information provided to the user and various menus of the cellular phone. The display unit 840 may include a display panel 841. In one embodiment, the Display panel 841 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. In one embodiment, touch panel 831 can overlay display panel 841, and when touch panel 831 detects a touch operation thereon or nearby, communicate to processor 880 to determine the type of touch event, and processor 880 can then provide a corresponding visual output on display panel 841 based on the type of touch event. Although in fig. 8, the touch panel 831 and the display panel 841 are two separate components to implement the input and output functions of the mobile phone, in some embodiments, the touch panel 831 and the display panel 841 may be integrated to implement the input and output functions of the mobile phone.

The cell phone 800 may also include at least one sensor 850, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display panel 841 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 841 and/or the backlight when the mobile phone is moved to the ear. The motion sensor can comprise an acceleration sensor, the acceleration sensor can detect the magnitude of acceleration in each direction, the magnitude and the direction of gravity can be detected when the mobile phone is static, and the motion sensor can be used for identifying the application of the gesture of the mobile phone (such as horizontal and vertical screen switching), the vibration identification related functions (such as pedometer and knocking) and the like; the mobile phone may be provided with other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor.

The audio circuitry 860, speaker 861 and microphone 862 may provide an audio interface between the user and the handset. The audio circuit 860 can transmit the electrical signal converted from the received audio data to the speaker 861, and the electrical signal is converted into a sound signal by the speaker 861 and output; on the other hand, the microphone 862 converts the collected sound signal into an electrical signal, which is received by the audio circuit 860 and converted into audio data, and then the audio data is output to the processor 880 for processing, and then the audio data may be transmitted to another mobile phone through the millimeter wave antenna device 810, or the audio data may be output to the memory 820 for subsequent processing.

WiFi belongs to short-distance wireless transmission technology, and the mobile phone can help a user to send and receive e-mails, browse webpages, access streaming media and the like through the WiFi module 870, and provides wireless broadband Internet access for the user. Although fig. 8 shows WiFi module 870, it is understood that it is not an essential component of cell phone 800 and may be omitted as desired.

The processor 880 is a control center of the mobile phone, connects various parts of the entire mobile phone using various interfaces and lines, and performs various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 820 and calling data stored in the memory 820, thereby integrally monitoring the mobile phone. In one embodiment, processor 880 may include one or more processing units. In one embodiment, the processor 880 may integrate an application processor and a modem processor, wherein the application processor primarily handles operating systems, user interfaces, applications, and the like; the modem processor handles primarily wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 880.

The cell phone 800 also includes a power supply 890 (e.g., a battery) for powering the various components, which may be logically coupled to the processor 880 via a power management system that may be used to manage charging, discharging, and power consumption.

In one embodiment, the cell phone 800 may also include a camera, a bluetooth module, and the like.

Any reference to memory, storage, database, or other medium used herein may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM), which acts as external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synchronous Link (Synchlink) DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and bus dynamic RAM (RDRAM).

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.