阅读说明：本技术 一种天线组件以及电子设备 (Antenna assembly and electronic equipment ) 是由 虞龙杰 于 2021-08-12 设计创作，主要内容包括：本发明公开了一种天线组件以及电子设备,所述天线组件包括：金属边框天线,所述金属边框天线弯曲设置,且所述金属框天线上设置有开槽,所述金属边框天线用于调出GPS L1工作频段、GPS L5工作频段以及LTEBand32工作频段；激光直接成型天线,所述激光成型天线位于所述金属边框天线的内凹侧,且所述激光成型天线的两端与所述金属边框天线连接,所述激光直接成型天线用于调出Wi-Fi 5G工作频段,还用于与所述金属边框配合调出Wi-Fi 2.4G工作频段。本发明通过在一根天线上只开一个槽就能够集成GPS L1、GPS L5、LTE Band32、Wi-Fi 2.4G和Wi-Fi 5G这五个频点,以得到一五合一天线,该天线集成度较高,且不需要增加开槽的数量,提高了金属机的结构强度。(The invention discloses an antenna assembly and electronic equipment, the antenna assembly includes: the metal frame antenna is arranged in a bent mode, a slot is formed in the metal frame antenna, and the metal frame antenna is used for calling out a GPS L1 working frequency band, a GPS L5 working frequency band and an LTEBand32 working frequency band; the laser direct structuring antenna is located the indent side of metal frame antenna, just the both ends of laser forming antenna with metal frame antenna connection, laser direct structuring antenna is used for calling out Wi-Fi5G working frequency channel, still be used for with Wi-Fi2.4G working frequency channel is called out in the metal frame cooperation. According to the five-in-one antenna, five frequency points including the GPS L1, the GPS L5, the LTE Band32, the Wi-Fi2.4G and the Wi-Fi5G can be integrated by only forming one groove on one antenna, so that the five-in-one antenna is obtained, the integration level of the antenna is high, the number of the grooves does not need to be increased, and the structural strength of a metal machine is improved.)

1. An antenna assembly, comprising:

the metal frame antenna is arranged in a bent mode and provided with a slot, and the metal frame antenna is used for calling out a GPS L1 working frequency Band, a GPS L5 working frequency Band and an LTE Band32 working frequency Band;

the laser direct structuring antenna is located the indent side of metal frame antenna, just the both ends of laser forming antenna with metal frame antenna connection, laser direct structuring antenna is used for calling out Wi-Fi5G working frequency channel, still be used for with Wi-Fi2.4G working frequency channel is called out in the metal frame cooperation.

2. The antenna assembly of claim 1, wherein the metal bezel antenna comprises:

a first metal bezel antenna segment;

a second metal frame antenna segment, which is a bent metal frame antenna segment; one end of the second metal frame antenna segment is positioned on one side of one end of the first metal frame antenna segment; the other end of the first metal frame antenna section is grounded to form a first grounding point;

the first metal frame antenna segment and the second metal frame antenna segment are used for calling out a GPS L1 working frequency Band, a GPS L5 working frequency Band and an LTE Band32 working frequency Band;

a third metal frame antenna segment, one end of which is positioned at one side of the other end of the second metal frame antenna segment and is arranged at an interval with the second metal frame antenna segment to form the slot; the other end of the third metal frame antenna section is grounded to form a second grounding point;

and the third metal frame antenna is coupled with the laser direct structuring antenna and is used for calling out a Wi-Fi2.4G working frequency band.

3. The antenna assembly of claim 2, wherein the first metal bezel antenna segment is disposed perpendicular to the third metal bezel antenna segment.

4. The antenna assembly of claim 2, wherein the second metal bezel antenna segment is arcuate.

5. An antenna assembly according to claim 1 or 2, characterized in that the width of the slot is 0.8-1.2 mm.

6. The antenna assembly of claim 2, further comprising:

the first side elastic piece is connected between one end of the laser direct structuring antenna and the first metal frame antenna section;

the second side elastic piece is connected between the other end of the laser direct structuring antenna and the second metal frame antenna section;

the first side elastic piece and the second side elastic piece are connected with the mainboard through signal lines.

7. The antenna assembly of claim 6, wherein a spacing between the first side spring element and the first ground point is 16-20 mm; the distance between the second side elastic piece and the first grounding point is 9-11 mm.

8. The antenna assembly of claim 2, wherein the metal bezel antenna has a longitudinal length of 22-26 mm; the transverse length of the metal frame antenna is 24-28 mm; the length of the third metal frame antenna is 13-15 mm; the total length of the first metal frame antenna and the second metal frame antenna is 10-12 mm.

9. The antenna assembly of claim 1, wherein the antenna assembly is debugged in the order Wi-Fi2.4G operating Band, GPS L1 operating Band, GPS L5 operating Band, LTE Band32 operating Band, Wi-Fi5G operating Band.

10. An electronic device, comprising:

a metal middle frame;

the plastic bracket is arranged on the metal middle frame; and

an antenna assembly of any one of claims 1-9;

the antenna component is arranged at the upper left corner of the metal middle frame; wherein the laser direct structuring antenna is arranged on the plastic support.

Technical Field

The present invention relates to the field of antenna technologies, and in particular, to an antenna assembly and an electronic device.

Background

Year 2020 is The first year of formal business of The fifth Generation mobile communication technology (The 5th Generation, 5G). Compared with The 4G LTE (The 4th Generation, Long Term Evolution) communication technology, 5G has The advantages of high rate, low delay transmission and large cell capacity, and in addition, The positioning performance of The 5G smart phone is also enhanced. From another perspective, outdoor Positioning of a 4G smart phone mainly depends on GPS L1(Global Positioning System, Level 1), a frequency point corresponding to the outdoor Positioning is 1575MHz, and GPS L5(Global Positioning System, Level 5) is added to the outdoor Positioning of the 5G smart phone on the basis of GPS L1, and a frequency point corresponding to the outdoor Positioning is 1176 MHz. When the 5G smart phone is used for outdoor positioning, the two positioning systems of the GPS L1 and the GPS L5 work simultaneously, so that the positioning accuracy is greatly enhanced.

The design scheme of the antenna for accommodating the double GPS in the existing 5G smart phone can be summarized into two types: in the first scheme, one antenna is integrated with a GPS L1, a first path of Wi-Fi2.4G and a first path of Wi-Fi5G, and the other antenna is integrated with a GPS L5, a second path of Wi-Fi2.4G and a second path of Wi-Fi 5G; in the second scheme, one antenna is integrated with a GPS L1, a first path of Wi-Fi2.4G and a first path of Wi-Fi5G, and the other antenna is only used as a GPS L5. Therefore, in the two schemes, one antenna only integrates 3 frequency points at most, the integration level of the antenna is not high enough, and for a mobile terminal (namely, a metal machine) made of a metal material, the number of slots needs to be increased in order to serve as a dual-GPS antenna, so that the structural strength of the metal machine is influenced.

Accordingly, the prior art is yet to be improved and developed.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an antenna assembly and an electronic device, so as to solve the problem that the integration level of the antenna in the conventional antenna is not high enough, and the structural strength of the metal machine is affected due to the need to increase the number of slots for the dual GPS antenna.

The technical scheme of the invention is as follows:

an antenna assembly, comprising:

the metal frame antenna is arranged in a bent mode and provided with a slot, and the metal frame antenna is used for calling out a GPS L1 working frequency Band, a GPS L5 working frequency Band and an LTE Band32 working frequency Band;

the laser direct structuring antenna is located the indent side of metal frame antenna, just the both ends of laser forming antenna with metal frame antenna connection, laser direct structuring antenna is used for calling out Wi-Fi5G working frequency channel, still be used for with Wi-Fi2.4G working frequency channel is called out in the metal frame cooperation.

In a further aspect of the present invention, the metal frame antenna includes:

a first metal bezel antenna segment;

a second metal frame antenna segment, which is a bent metal frame antenna segment; one end of the second metal frame antenna segment is positioned on one side of one end of the first metal frame antenna segment; the other end of the first metal frame antenna section is grounded to form a first grounding point;

the first metal frame antenna segment and the second metal frame antenna segment are used for calling out a GPS L1 working frequency Band, a GPS L5 working frequency Band and an LTE Band32 working frequency Band;

a third metal frame antenna segment, one end of which is positioned at one side of the other end of the second metal frame antenna segment and is arranged at an interval with the second metal frame antenna segment to form the slot; the other end of the third metal frame antenna section is grounded to form a second grounding point;

and the third metal frame antenna is coupled with the laser direct structuring antenna and is used for calling out a Wi-Fi2.4G working frequency band.

In a further embodiment of the present invention, the first metal frame antenna segment is perpendicular to the third metal frame antenna segment.

In a further arrangement of the present invention, the second metal frame antenna segment is arc-shaped.

According to the further arrangement of the invention, the width of the slot is 0.8-1.2 mm.

In a further aspect of the present invention, the antenna assembly further comprises:

the first side elastic piece is connected between one end of the laser direct structuring antenna and the first metal frame antenna section;

the second side elastic piece is connected between the other end of the laser direct structuring antenna and the second metal frame antenna section;

the first side elastic piece and the second side elastic piece are connected with the mainboard through signal lines.

According to a further arrangement of the present invention, the distance between the first side spring piece and the first grounding point is 16-20 mm; the distance between the second side elastic piece and the first grounding point is 9-11 mm.

According to the further arrangement of the invention, the longitudinal length of the metal frame antenna is 22-26 mm; the transverse length of the metal frame antenna is 24-28 mm; the length of the third metal frame antenna is 13-15 mm; the total length of the first metal frame antenna and the second metal frame antenna is 10-12 mm.

According to the further arrangement, the debugging sequence of the antenna assembly sequentially comprises a Wi-Fi2.4G working frequency Band, a GPS L1 working frequency Band, a GPS L5 working frequency Band, an LTE Band32 working frequency Band and a Wi-Fi5G working frequency Band.

Based on the same inventive concept, the present invention also provides an electronic device, comprising:

a metal middle frame;

the plastic bracket is arranged on the metal middle frame; and

an antenna assembly as described above;

the antenna component is arranged at the upper left corner of the metal middle frame; wherein the laser direct structuring antenna is arranged on the plastic support.

The invention provides an antenna assembly and an electronic device, wherein the antenna assembly comprises: the metal frame antenna is arranged in a bent mode and provided with a slot, and the metal frame antenna is used for calling out a GPS L1 working frequency Band, a GPS L5 working frequency Band and an LTE Band32 working frequency Band; the laser direct structuring antenna is located the indent side of metal frame antenna, just the both ends of laser forming antenna with metal frame antenna connection, laser direct structuring antenna is used for calling out Wi-Fi5G working frequency channel, still be used for with Wi-Fi2.4G working frequency channel is called out in the metal frame cooperation. According to the five-in-one antenna, five frequency points including the GPS L1, the GPS L5, the LTE Band32, the Wi-Fi2.4G and the Wi-Fi5G can be integrated by only forming one groove on one antenna, so that the five-in-one antenna is obtained, the integration level of the antenna is high, the number of the grooves does not need to be increased, and the structural strength of a metal machine is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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 invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of the structure of an antenna assembly of the present invention.

Figure 2 is a graph of S11 for the Wi-Fi2.4G resonance in the present invention.

Fig. 3 is a circuit schematic of the matching circuit of the present invention.

Figure 4 is a smith chart of a Wi-Fi2.4G without a matching circuit of the present invention.

Fig. 5 is a smith chart based on the parallel inductance of fig. 4.

Fig. 6 is a graph of the resonance at S11 for the parallel inductance of fig. 5.

Fig. 7 is a smith chart based on the re-series capacitance of fig. 4.

Fig. 8 is a S11 resonance diagram corresponding to fig. 7.

Fig. 9 is a smith chart based on the re-parallel inductance mapping of fig. 7.

Fig. 10 is a S11 resonance diagram corresponding to fig. 9.

FIG. 11 is a Smith chart based on FIG. 9 with series capacitance.

Fig. 12 is a S11 resonance diagram corresponding to fig. 11.

Fig. 13 is an S11 resonance diagram of the antenna assembly in the final configuration.

The various symbols in the drawings: 100. a metal bezel antenna; 101. a first metal bezel antenna segment; 102. a second metal frame antenna segment; 103. a third metal frame antenna segment; 104. grooving; 200. laser direct structuring of the antenna; 300. a first side spring; 400. a second side spring; 500. a first feeding point; 600. a matching circuit; 700. and a signal line.

Detailed Description

The present invention provides an antenna assembly and an electronic device, and in order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the embodiments and claims, the articles "a", "an", "the" and "the" may include plural forms as well, unless the context specifically dictates otherwise. If there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or wirelessly coupled. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The research of The inventor finds that, compared with The 4G LTE (Long Term Evolution) communication technology, 5G has The advantages of high rate, low delay transmission and large cell capacity, and in addition, The positioning performance of a 5G smart phone is also enhanced. From another perspective, outdoor Positioning of a 4G smart phone mainly depends on GPS L1(Global Positioning System, Level 1), a frequency point corresponding to the outdoor Positioning is 1575MHz, and GPS L5(Global Positioning System, Level 5) is added to the outdoor Positioning of the 5G smart phone on the basis of GPS L1, and a frequency point corresponding to the outdoor Positioning is 1176 MHz. When the 5G smart phone is used for outdoor positioning, the two positioning systems of the GPS L1 and the GPS L5 work simultaneously, so that the positioning accuracy is greatly enhanced.

The design scheme of the antenna for accommodating the double GPS in the existing 5G smart phone can be summarized into two types: in the first scheme, one antenna is integrated with a GPS L1, a first path of Wi-Fi2.4G and a first path of Wi-Fi5G, and the other antenna is integrated with a GPS L5, a second path of Wi-Fi2.4G and a second path of Wi-Fi 5G; in the second scheme, one antenna is integrated with a GPS L1, a first path of Wi-Fi2.4G and a first path of Wi-Fi5G, and the other antenna is only used as a GPS L5. Therefore, in the two schemes, one antenna integrates only 3 frequency points at most, the integration level of the antenna is not high enough, and for a mobile terminal (i.e. a metal machine) made of a metal material, the number of slots (two slots are generally required to be formed) needs to be increased in order to form a dual-GPS antenna, so that the appearance and the structural strength of the metal machine are affected.

Aiming at the technical problems, the invention provides an antenna assembly and electronic equipment, five frequency points of GPS L1, GPS L5, LTE Band32, Wi-Fi2.4G and Wi-Fi5G can be integrated by only opening one slot on one antenna, so that a five-in-one antenna is obtained, the antenna integration level is higher, and the five-in-one antenna is arranged at the upper left of a metal machine, for example, the position close to a camera, and the number of the slots does not need to be increased, so that the aesthetic property of the metal machine can be improved, and the structural strength can be greatly enhanced.

Referring to fig. 1 to 13, the present invention provides a preferred embodiment of an antenna assembly.

As shown in fig. 1, the present invention provides an antenna assembly for use in an electronic device. In some embodiments, the electronic device comprises: metal center, plastic support, and the antenna module. Wherein the plastic bracket is arranged on the metal middle frame; the antenna assembly is arranged at the upper left corner of the metal middle frame.

Specifically, the electronic device may be a mobile phone, such as a curved-screen mobile phone, and may also be a terminal device with a positioning function, such as a tablet computer. In this embodiment, a mobile phone with a curved screen is taken as an example for description. During specific implementation, the antenna module is located in the upper left corner area of the back of the curved-surface screen mobile phone, namely, in the upper left corner position of the metal middle frame, for example, the antenna module can be arranged at the position of the camera area of the curved-surface screen mobile phone, wherein the antenna clearance of the curved-surface screen mobile phone is smaller, the upper antenna clearance is 1mm, the antenna clearances on the left side and the right side are 0.2mm, and the smaller the antenna clearance is, the smaller the radiation environment and difference of the antenna are indicated. It should be noted that the antenna clearance above the mobile phone with the curved screen and the side antenna clearance corresponding to the curved screen are not limited to the above values, and may be other sizes, which is not limited in the present invention.

In a further implementation of an embodiment, the antenna assembly includes: a metal bezel antenna 100 and a laser direct structuring antenna 200(LDS antenna). The metal frame antenna 100 is arranged in a bent mode, a slot 104 is formed in the metal frame antenna, and the metal frame antenna 100 is used for calling out a GPS L1 working frequency Band, a GPS L5 working frequency Band and an LTE Band32 working frequency Band; the laser forming antenna is located the indent side of metal frame antenna 100, just the both ends of laser forming antenna with metal frame antenna 100 is connected, laser direct structuring antenna 200 is used for calling out Wi-Fi5G working frequency channel, still be used for with the metal frame cooperation is called out Wi-Fi2.4G working frequency channel.

Specifically, the laser direct structuring antenna 200 is disposed on the plastic support, specifically, a metal antenna is formed by directly plating on the plastic support by using a laser technology. The metal frame is arranged in a bending mode to adapt to the shape of a metal middle frame of the curved-surface screen mobile phone, and the metal frame antenna 100 is provided with the slot 104, so that the metal frame antenna 100 can call out various working frequency bands. Wherein, the laser forming antenna is located the indent side of metal frame antenna 100, just the both ends of laser forming antenna with metal frame antenna 100 is connected, so that Wi-Fi5G working frequency channel can be transferred out to laser direct structuring antenna 200, can also with Wi-Fi2.4G working frequency channel is transferred out in the metal frame cooperation, and GPS L1 working frequency channel, GPS L5 working frequency channel and LTE Band32 working frequency channel then can by the metal frame is transferred out under the sky. Therefore, five frequency points of GPS L1, GPS L5, LTE Band32, Wi-Fi2.4G and Wi-Fi5G can be integrated by only opening one slot on one antenna, so that a five-in-one antenna is obtained, the integration level of the antenna is high, the number of the slots 104 is not required to be increased, and the attractiveness of a metal machine (a curved screen mobile phone) is improved while the structural strength of the metal machine is improved. In addition, because the antenna assembly provided by the invention is positioned in the upper left corner area of the back of the metal machine, the antenna assembly is less influenced by the head and the hands, and the head and hand performance of each frequency point of the antenna is better.

In a further implementation of an embodiment, the width of the slot 104 is 0.8-1.2mm, and in one implementation, the width of the slot 104 may be set to 1.0 mm. It should be noted that the width of the slot 104 is not limited to the above value, and may be other values, which is not limited in the present invention.

In a further implementation of an embodiment, the metal bezel antenna 100 includes: a first metal frame antenna segment 101, a second metal frame antenna segment 102 and a third metal frame antenna segment 103. The second metal frame antenna segment 102 is a bent metal frame antenna segment, one end of the second metal frame antenna segment 102 is located on one side of one end of the first metal frame antenna segment 101, and the other end of the first metal frame antenna segment 101 is grounded to form a first grounding point GND 1; the first metal frame antenna segment 101 and the second metal frame antenna segment 102 are used for calling out a GPS L1 working frequency Band, a GPS L5 working frequency Band, and an LTE Band32 working frequency Band. One end of the third metal frame antenna segment 103 is located on one side of the other end of the second metal frame antenna segment 102 and is arranged at an interval with the second metal frame antenna segment 102 to form the slot 104, and the other end of the third metal frame antenna segment 103 is grounded to form a second grounding point GND 2; the third metal frame antenna 100 is coupled to the laser direct structuring antenna 200, and is configured to tune out a Wi-Fi2.4G working frequency band.

Specifically, the second metal frame antenna segment 102 is arc-shaped, and the first metal frame antenna segment 101 and the third metal frame antenna segment 103 are vertically arranged to adapt to the shape of the curved-surface screen mobile phone.

The longitudinal length a of the metal frame antenna 100 is 22-26mm, and the transverse length b of the metal frame antenna 100 is 24-28 mm. The length c of the third metal frame antenna 100 is 13-15mm, the length of the third metal frame antenna 100 may affect the resonance of the Wi-Fi2.4G, if the length of the third metal frame antenna 100 is too long, the resonance of the Wi-Fi2.4G may be biased to a low frequency, and if the length of the third metal frame antenna 100 is too short, the resonance of the Wi-Fi2.4G may be biased to a high frequency.

The total length d of the first metal frame antenna 100 and the second metal frame antenna 100 is 10-12mm, if the total length of the first metal frame antenna 100 and the second metal frame antenna 100 is longer than the total length, the resonance points of the working frequency bands of the GPS L1 and the GPS L5 will generate frequency deviation to a low level, and if the total length of the working frequency bands of the GPS L1 and the GPS L5 is shorter than the total length of the working frequency bands of the GPS L1 and the GPS L5, the resonance points of the working frequency bands of the GPS L1 and the GPS L5 will generate frequency deviation to a high level.

In one implementation, the length of the third metal frame antenna 100 may be 14mm, the transverse length of the metal frame antenna 100 is 26mm, the width of the slot 104 is 1mm, and then the length of the second metal frame antenna 100 is 11 mm. In another implementation, the length of the metal frame antenna 100 may be set to 28mm, the length of the third metal frame antenna 100 may be set to 15mm, the width of the slot 104 is 1mm, and then the length of the second metal frame antenna 100 is 12 mm.

In a further implementation of an embodiment, the antenna assembly further includes: a first side elastic member 300 and a second side elastic member 400, wherein the first side elastic member 300 is connected between one end of the laser direct structuring antenna 200 and the first metal frame antenna segment 101, and the second side elastic member 400 is connected between the other end of the laser direct structuring antenna 200 and the second metal frame antenna segment 102. The first side spring 300 and the second side spring 400 are connected to the main board through a signal line 700.

Specifically, the distance e between the first side spring 300 and the first ground point GND1 is 16-20mm, and may be 18mm, for example. The distance e between the second side spring 400 and the first ground point is 9-11mm, for example, may be 10 mm. The distance g between the third metal bezel antenna segment 103 and the second ground point GND2 is 8-10mm, which may be 9mm, for example. The distance h between the first metal bezel antenna segment 101 and the second metal bezel antenna segment 102 and the first grounding point GND1 is 4-5mm, for example, 4.5 mm.

In some embodiments, the debugging sequence of the antenna assembly is Wi-Fi2.4G working frequency Band, GPS L1 working frequency Band, GPS L5 working frequency Band, LTE Band32 working frequency Band, and Wi-Fi5G working frequency Band. The metal frame antenna 100 is used for calling out a GPS L1 working frequency Band, a GPS L5 working frequency Band and an LTE Band32 working frequency Band; the laser direct structuring antenna 200 is used for calling out a Wi-Fi5G working frequency band and is also used for being matched with the metal frame to call out a Wi-Fi2.4G working frequency band.

The frequency ranges of the 5 frequency bands corresponding to the five-in-one antenna are as follows: the frequency range of the Wi-Fi2.4G working frequency band is 2400-2500 MHz; the frequency of the working frequency band of the GPS L1 is 1575 MHz; the frequency of the working frequency band of the GPS L5 is 1176 MHz; the frequency range of the Wi-Fi5G working frequency band is 5150 and 5850 MHz; the frequency range of the LTE Band32 operating Band is 1452-1496 MHz. It should be noted that the Wi-Fi2.4G operating band and the bluetooth (including the conventional bluetooth and the bluetooth low energy) have the same band range.

Referring to fig. 1 to 13, the principle of resonance in 5 frequency bands is explained below.

In a specific embodiment, the resonance principle of the Wi-Fi2.4G operating band is as follows: as can be seen from fig. 1, the first feeding point 500 is not directly physically connected to the third metal frame antenna 100, so that the third metal frame antenna 100 is mainly coupled by the LDS antenna to form a Wi-Fi2.4 GHz resonance, a corresponding return loss diagram is shown in fig. 2, and a resonance between 3 and 4 points in the diagram is a Wi-Fi2.4G resonance. The length of the third metal bezel antenna 100 may affect the resonance of the Wi-Fi2.4G, if the length of the third metal bezel antenna 100 is too long, the resonance of the Wi-Fi2.4G may be biased to a low frequency, and if the length of the third metal bezel antenna 100 is too short, the resonance of the Wi-Fi2.4G may be biased to a high frequency. It should be noted that, at this time, the matching circuit 600 is not added to the Wi-Fi2.4G working frequency band, that is, under the condition that the matching circuit 600 is not added, the first feeding point 500 is connected to the first side elastic member 300 and the second side elastic member 400, the first side elastic member 300 and the second side elastic member 400 are respectively connected to the first metal frame antenna 100 and the second metal frame antenna 100, and the coupling effect of the third metal frame antenna 100 is added, so that the resonance of Wi-Fi2.4G can be obtained, the corresponding S11 is shown in fig. 2, and the corresponding Smith (Smith) chart is shown in fig. 3.

Referring to fig. 2 to 11, in an embodiment, the resonance principle of the GPS L1 operating Band, the GPS L5 operating Band, and the LTE Band32 operating Band is as follows: the first feeding point 500 is connected to the first side elastic member 300 through the matching circuit 600, the first side elastic member 300 and the second side elastic member 400 are physically connected through a signal line 700 on the main board, so that the first metal frame antenna 100 and the second metal frame antenna 100 are in a connection state, wherein the first side elastic member 300 is connected to the second metal frame antenna 100, and the second side elastic member 400 is connected to the first metal frame antenna 100.

Among them, the GPS L1 Antenna and the GPS L5 Antenna are of Inverted F Antenna (IFA). In one implementation, the distance between the first side spring 300 and the first ground point may be 17 mm. The distance between the second side spring member 400 and the first ground point GND1 may be 9 mm. The lengths of the first metal frame antenna segment 101 and the second metal frame antenna segment 102 are important, and in this embodiment, the total transverse length of the first metal frame antenna segment 101 and the second metal frame antenna segment 102 is 12mm, and the longitudinal length thereof is 24 mm. If the total length of the first metal frame antenna segment 101 and the second metal frame antenna segment 102 is longer, the resonant points of the GPS L1 working frequency band and the GPS L5 working frequency band will generate frequency deviation to a low level; if the total length of the first metal bezel antenna segment 101 and the second metal bezel antenna segment 102 is short, the resonance points of the GPS L1 and L5 are biased high.

In some embodiments, the matching circuit 600 is needed to correct for frequency offsets at the resonance points of GPS L1 and GPS L5. The matching circuit 600 includes a first inductor L1, a first capacitor C1, a second inductor L2, and a second capacitor C2, the first inductor L1 is connected in parallel with the antenna end, the first capacitor C1 is connected in series with the first inductor L1, the second inductor L2 is connected in parallel with the first capacitor C1, and the second capacitor C2 is connected in series with the second inductor L2 and connected to the radio frequency port, that is, the matching circuit 600 is sent out from the antenna end, an inductor is connected in parallel first, a capacitor is connected in series, an inductor is connected in parallel, and a capacitor is connected in series thereafter. In one implementation, the first inductor L1 is an inductor of 13nH, the first capacitor C1 is a capacitor of 1pF, the second inductor L2 is an inductor of 6.5nH, and the second capacitor C2 is an inductor of 1 pF. The matching circuit 600 is a high-pass type, that is, a parallel inductor type and a serial capacitor type, and the matching circuit 600 is used for debugging two resonances of GPS L1 and GPS L5, but does not substantially affect the resonance of Wi-Fi2.4G coupled by the existing third metal frame antenna 100.

As can be seen from fig. 2, the GPS L1 has a narrow-band resonance at the right side, and the corresponding smith chart is shown in fig. 4, where the GPS L5 (numbered 1) is located in the first quadrant, and the GPS L1 (numbered 2) is located in the third quadrant, and it can be seen that the GPS L1 and the GPS L5 are relatively far apart on the smith chart.

Referring to fig. 3 and 5, smith charts of the antenna terminals connected in parallel with the 13nH inductor and the 13nH inductor are shown in fig. 5. The effect of the parallel 13nH inductance can be described as being such that the L5 frequency point is closer to the second quadrant.

Based on the smith chart shown in fig. 5 (i.e. the antenna is connected with 13nH inductors in parallel) and then connected with 1pF capacitors in series, the corresponding smith chart is shown in fig. 7. The effect of the series 1pF capacitance can be described as such that the L5 frequency point passes from the first quadrant to between the third and fourth quadrants.

The corresponding S11 resonance diagram of fig. 7 is shown in fig. 8. In contrast to fig. 6, the effect of the series 1pF capacitance can be described as shifting the resonance to the right of GPS L1 between GPS L1 and L5.

Based on the smith chart shown in fig. 7 (i.e. from the antenna, first connecting the inductor of 13nH in parallel and then connecting the capacitor of 1pF in series), and then connecting the inductor of 6.5nH in parallel, the corresponding smith chart is shown in fig. 9. At this time, the effect of the parallel 6.5nH inductor can be described as shifting the two frequency points GPS L1 and L5 to the first quadrant.

Based on the smith chart shown in fig. 9 (i.e. from the antenna, first connect the 13nH inductor in parallel, then connect the 1pF capacitor in series, then connect the 6.5nH inductor in parallel), then connect the 1pF capacitor in series, and finally reach the rf port, the corresponding smith chart is shown in fig. 11. At this time, the effect of the series connection of 1pF capacitors can be described as approaching the two frequency points of GPS L1 and L5 from the first quadrant to the center point of the smith chart.

The corresponding S11 resonance diagram of fig. 11 is shown in fig. 12. Comparing fig. 10, the effect of the series 1pF capacitance can be described as separating GPS L1 and L5 from one large resonance to form two resonances.

It should be understood that fig. 12 shows the frequency points of GPS L1 (reference numeral 2, corresponding to a frequency of 1575MHz), and does not mark the frequency points of LTE Band 32. Because the frequency point (1452-1496 MHz) of the LTE Band32 is close to the GPS L1, and the bandwidth of the GPS L1 in fig. 12 is wide enough to cover the frequency point of the LTE Band32, the antenna performance of the GPS L1 and the antenna performance of the LTE Band32 are considered to be close.

In a specific embodiment, the resonance principle of the Wi-Fi5G operating band is as follows: on the basis of the Wi-Fi2.4G, GPS and LTE Band32 resonances (i.e., fig. 12), it can be seen from fig. 12 that the resonances of Wi-Fi5G are shallower, and to increase the resonance depth of Wi-Fi5G, LDS 201 is increased, as shown by the resonances between reference numeral 5 and reference numeral 6 in fig. 13.

The length of the laser direct structuring antenna 200 is 3-5mm, for example, 4 mm. The length of the laser direct structuring antenna 200 affects the resonance of the Wi-Fi5G, and if the length of the laser direct structuring antenna 200 is longer, the resonance of the Wi-Fi5G is shifted to a low frequency; if the length of the laser direct structuring antenna 200 is short, the resonance of Wi-Fi5G will be biased towards high frequencies.

According to a resonance diagram of a Wi-Fi2.4G working frequency Band, a GPS L1 working frequency Band, a GPS L5 working frequency Band, an LTE Band32 working frequency Band and a Wi-Fi5G working frequency Band, the free space antenna of the five-in-one antenna formed by the Wi-Fi2.4G working frequency Band, the GPS L1 working frequency Band, the GPS L5 working frequency Band, the LTE Band32 working frequency Band and the Wi-Fi5G working frequency Band has high efficiency, wherein the efficiency value of the GPS L1 working frequency Band can reach-4.5 dB, the efficiency value of the GPS L5 working frequency Band can reach-8.5 dB, the efficiency value of the Wi-Fi2.4G working frequency Band can reach-6 dB, the efficiency value of the Wi-Fi5G working frequency Band can reach-7 dB, and the efficiency value of the LTE Band32 working frequency Band can reach-5 dB. In addition, because the five-in-one antenna structure is located in the upper left corner area of the back of the mobile phone, the five-in-one antenna is high in free space efficiency, and the influence of the hands and the head of the five-in-one antenna is small, so that the performance of the hands and the head of the five-in-one antenna is good.

In some embodiments, the present invention also provides an electronic device comprising: a metal middle frame, a plastic support and the antenna component as described above; wherein, the plastic support is arranged on the metal middle frame. The antenna assembly is described in the above embodiments of the antenna assembly, and is not described herein again.

In summary, the present invention provides an antenna assembly and an electronic device, where the antenna assembly includes: the metal frame antenna is arranged in a bent mode and provided with a slot, and the metal frame antenna is used for calling out a GPS L1 working frequency Band, a GPS L5 working frequency Band and an LTE Band32 working frequency Band; the laser direct structuring antenna is located the indent side of metal frame antenna, just the both ends of laser forming antenna with metal frame antenna connection, laser direct structuring antenna is used for calling out Wi-Fi5G working frequency channel, still be used for with Wi-Fi2.4G working frequency channel is called out in the metal frame cooperation. According to the five-in-one antenna, five frequency points including the GPS L1, the GPS L5, the LTE Band32, the Wi-Fi2.4G and the Wi-Fi5G can be integrated by only forming one groove on one antenna, so that the five-in-one antenna is obtained, the integration level of the antenna is high, the number of the grooves does not need to be increased, and the structural strength and the appearance attractiveness of a metal machine are improved. In addition, because the five-in-one antenna structure is located in the upper left corner area of the back of the mobile phone, the five-in-one antenna is high in free space efficiency, and the influence of the hands and the head of the five-in-one antenna is small, so that the performance of the hands and the head of the five-in-one antenna is good.

It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.