CN117638466A

CN117638466A - Antenna module, antenna array and electronic equipment

Info

Publication number: CN117638466A
Application number: CN202210987934.3A
Authority: CN
Inventors: 张帅; 张倩铢; 白婵; 韦豪; 钟永卫
Original assignee: Xidian University; Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Xidian University; Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2024-03-01
Also published as: WO2024037129A1

Abstract

The application provides an antenna module, an antenna array and electronic equipment which are simple in feed structure and capable of improving radiation performance through phase shift. The antenna module comprises a radiation unit and a feed unit. The radiating element includes a pair of first radiating arms and a pair of second radiating arms. The power feeding unit comprises a first power feeding piece and a second power feeding piece which are arranged at intervals. The first feed piece comprises a transmission part, a first feed part and a second feed part which are sequentially connected, wherein the first feed part is oppositely arranged and coupled with one first radiation arm, and the second feed part is oppositely arranged and coupled with the other first radiation arm; the second feeding piece comprises a third feeding part, a first connecting part and a fourth feeding part which are connected in sequence. The third feed part is electrically connected with one second radiating arm, and the fourth feed part is electrically connected with the other second radiating arm. The antenna array comprises a plurality of antenna modules which are arranged in an array mode. The electronic device comprises a device body, an antenna module or an antenna array.

Description

Antenna module, antenna array and electronic equipment

Technical Field

The application relates to the technical field of communication, in particular to an antenna module, an antenna array and electronic equipment.

Background

With the development of communication technology, electronic devices having antenna modules and antenna arrays for implementing communication functions are increasingly used. However, in the related art, when an antenna module, an antenna array, and a polarized wireless device provided in an electronic device communicate, performance is poor. Therefore, how to improve the communication performance of the antenna module and the antenna array becomes a technical problem to be solved.

Disclosure of Invention

The application provides an antenna module, an antenna array and electronic equipment which are simple in feed structure and capable of improving radiation performance through phase shift.

In one aspect, the present application provides an antenna module, including:

a radiating unit including a pair of first radiating arms disposed along a first direction and a pair of second radiating arms disposed along a second direction, the first direction intersecting the second direction; and

The power supply unit comprises a first power supply part and a second power supply part which are arranged at intervals, wherein the first power supply part comprises a transmission part, a first power supply part and a second power supply part which are connected in sequence, the transmission part is used for being electrically connected with a radio frequency signal source, the first power supply part is arranged opposite to and coupled with one first radiation arm, the second power supply part is arranged opposite to and coupled with the other first radiation arm, the third power supply part comprises a third power supply part, a first connection part and a fourth power supply part which are connected in sequence, one end of the third power supply part is electrically connected with one second radiation arm, the other end of the third power supply part is used for being electrically connected with the radio frequency signal source, and one end of the fourth power supply part is electrically connected with the other second radiation arm; the first connection part is used for transmitting radio frequency current between the third feeding part and the fourth feeding part and is used for adjusting a phase difference between the radio frequency current of the third feeding part and the radio frequency current of the fourth feeding part, wherein the radio frequency signal source is used for generating radio frequency current.

On the other hand, the application also provides an antenna array, which comprises a plurality of antenna modules, wherein the plurality of antenna modules are arranged in an array along the first direction, and the first radiation arms of two adjacent antenna modules are coupled; and/or the plurality of antenna modules are arranged in an array along the second direction, and the second radiation arms of the two adjacent antenna modules are coupled.

In still another aspect, the application further provides an electronic device, including a device body, the antenna module or the antenna array, where the device body is used to carry the antenna module or the antenna array.

The antenna module provided by the application comprises a pair of first radiating arms, a pair of second radiating arms, a first feeding piece and a second feeding piece, wherein the first feeding piece is electrically connected with a radio frequency signal source and is connected with the pair of first radiating arms in a coupling mode, a third feeding part of the second feeding piece is electrically connected with the radio frequency signal source and is electrically connected with one second radiating arm, a fourth feeding part of the second feeding piece is electrically connected with the other second radiating arm, and a first connecting part of the second feeding piece is electrically connected between the third feeding part and the fourth feeding part, so that the first feeding piece and the second feeding piece respectively form a pair of first radiating arms and a pair of feeding systems of the second radiating arms, and the feeding systems formed by the first feeding piece and the second feeding piece are simple in structure and favorable for production. In addition, the first connecting part is used for adjusting the phase difference between the radio frequency currents of the third feeding part and the fourth feeding part, and can control the phase difference between the radio frequency currents of the pair of second radiating arms, so that the radiation direction adjustment, linear polarization and the like of the pair of second radiating arms are realized, and the communication performance of the pair of second radiating arms when communicating with wireless equipment is improved.

The antenna array provided by the application comprises a plurality of antenna modules which are arranged in an array mode, so that the antenna array has the characteristics of simple feed structure and good communication performance. The electronic equipment provided by the application comprises the antenna module or the antenna array, so that the electronic equipment also has the characteristics of simple feed structure and good communication performance.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below.

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

fig. 2 is a schematic structural diagram of the electronic device shown in fig. 1, including a device body and an antenna module;

FIG. 3 is a schematic diagram of the electronic device shown in FIG. 1, including a device body and an antenna array;

fig. 4 is a schematic structural diagram of an antenna module according to an embodiment of the present application;

fig. 5 is an exploded view of the antenna module shown in fig. 4, including a pair of first radiating arms, a pair of second radiating arms, a first feeding member, and a second feeding member;

fig. 6 is a schematic structural diagram of the antenna module shown in fig. 4 further including a dielectric layer;

fig. 7 is a schematic structural diagram of a pair of second radiating arms and a second feeding member in the antenna module shown in fig. 4;

Fig. 8 is a schematic structural diagram of a pair of first radiating arms, a first feeding member and a second connecting portion in the antenna module shown in fig. 4;

fig. 9 is a schematic structural diagram of the antenna module shown in fig. 7, in which the first connection portion includes a first sub-connection portion, a second sub-connection portion, and a third sub-connection portion;

fig. 10 is a schematic structural view of the second connection portion of the antenna module shown in fig. 8 extending along a first direction;

fig. 11 is a schematic structural diagram of the antenna module shown in fig. 4, in which the transmission portion of the first feeding member is located between the third feeding portion, the fourth feeding portion and the first connection portion of the second feeding member;

fig. 12 is a schematic structural diagram of the antenna module shown in fig. 4 further including a grounding element;

fig. 13 is a schematic structural diagram of the antenna module shown in fig. 12, which further includes a pair of first coupling patches and a pair of second coupling patches;

fig. 14 is an exploded view of the antenna module shown in fig. 13;

fig. 15 is a schematic structural diagram of an antenna array according to an embodiment of the present application;

fig. 16 is an enlarged partial schematic view of the antenna array of fig. 15;

fig. 17 is a schematic structural diagram of another antenna array according to an embodiment of the present disclosure;

fig. 18 is an enlarged partial schematic view of the antenna array of fig. 17;

fig. 19 is a schematic structural diagram of yet another antenna array according to an embodiment of the present disclosure;

Fig. 20 is a schematic structural diagram of a portion of a first radiating arm of an antenna array according to an embodiment of the present disclosure further including a groove;

fig. 21 is a schematic structural diagram of an antenna array according to an embodiment of the present disclosure, where each first radiating arm includes a groove;

fig. 22 is a schematic structural diagram of a second coupling branch, where the antenna array according to the embodiment of the present application further includes a first coupling branch;

fig. 23 is a schematic diagram of a simulation result of a first polarization standing-wave ratio of an antenna module according to an embodiment of the present application;

fig. 24 is a schematic diagram of a simulation result of a second polarization standing-wave ratio of an antenna module according to an embodiment of the present application;

fig. 25 is a gain pattern of an E-plane and an H-plane of the antenna module provided in the embodiment of the present application at 24.25GHz of the first polarized low frequency point;

fig. 26 is a gain pattern of the E-plane and the H-plane of the antenna module provided in the embodiment of the present application at 24.25GHz of the second polarized low frequency point;

fig. 27 is a gain pattern of an E-plane and an H-plane of the antenna module provided in the embodiment of the present application at 42.5GHz of the first polarized high frequency point;

fig. 28 is a gain pattern of the E-plane and the H-plane of the antenna module provided in the embodiment of the present application at 29.5GHz of the second polarized high frequency point;

FIG. 29 is a graph of maximum radiation pattern for a first polarization as a function of frequency for an antenna array scan angle of 0℃provided in an embodiment of the present application;

FIG. 30 is a graph of maximum radiation pattern for a second polarization as a function of frequency for an antenna array scan angle of 0℃provided in an embodiment of the present application;

fig. 31 is a maximum radiation pattern of a first polarization according to an angle change of the antenna array provided in the embodiment of the present application when a scan angle at a low frequency point of 24.25GHz is 0 °;

fig. 32 is a maximum radiation pattern of a second polarization according to an angle change of the antenna array provided in the embodiment of the present application when a scan angle is 0 ° at a low frequency point of 24.25 GHz;

fig. 33 is a maximum radiation pattern of a first polarization according to an angle change of the antenna array provided in the embodiment of the present application when a scan angle at a low frequency point of 24.25GHz is 60 °;

fig. 34 is a maximum radiation pattern of a second polarization according to an angle change of the antenna array provided in the embodiment of the present application when a scan angle at a low frequency point of 24.25GHz is 60 °;

fig. 35 is a maximum radiation pattern of a first polarization according to an angle change when a scanning angle of the antenna array is 0 ° at a high frequency point 42.5GHz according to an embodiment of the present application;

fig. 36 is a maximum radiation pattern of a second polarization according to an angle change of the antenna array provided in the embodiment of the present application when a scan angle is 0 ° at a high frequency point 29.5 GHz;

fig. 37 is a maximum radiation pattern of a first polarization according to an angle change of the antenna array provided in the embodiment of the present application when a scan angle is 60 ° at a high frequency point of 42.5 GHz;

Fig. 38 is a maximum radiation pattern of the second polarization according to the angle change when the scanning angle of the antenna array at the high frequency point 29.5GHz is 60 ° according to the embodiment of the present application.

Detailed Description

The technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings. It is apparent that the embodiments described herein are only some embodiments, not all embodiments. All other embodiments, which can be made by a person of ordinary skill in the art based on the embodiments provided herein without any inventive effort, are within the scope of the present application.

Reference in the present application to "an embodiment" or "implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation may be included in at least one embodiment of the present application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those skilled in the art will appreciate explicitly and implicitly that the embodiments described herein may be combined with other embodiments.

The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

As shown in fig. 1, fig. 1 is a schematic structural diagram of an electronic device 100 according to an embodiment of the present application. The electronic device 100 may be a device having a wireless communication function, such as a mobile phone, a tablet computer, a notebook computer, a watch, an unmanned aerial vehicle, a robot, a base station, a radar, a customer premise equipment (Customer Premise Equipment, CPE), a vehicle-mounted device, or a home appliance. The embodiment of the application takes a mobile phone as an example.

Referring to fig. 1 to 3, an electronic device 100 includes a device body 3, an antenna module 1 or an antenna array 2. The device body 3 is used for carrying the antenna module 1 or the antenna array 2. The frequency bands supported by the antenna array 2 and the antenna module 1 include, but are not limited to, the 5G millimeter wave frequency band.

In an embodiment, referring to fig. 1 and 2, an electronic device 100 includes a device body 3 and an antenna module 1. The antenna module 1 is configured to transmit and receive electromagnetic wave signals (may be 5G millimeter wave signals or electromagnetic wave signals in other frequency bands) so as to implement a communication function of the electronic device 100. The position of the antenna module 1 in the electronic device 100 is not specifically limited in this application, and fig. 2 is only an example and should not be construed as limiting the position of the antenna module 1 in the electronic device 100. The device body 3 is used for carrying the antenna module 1. Specifically, the apparatus body 3 includes, but is not limited to, components including the display screen 31, the housing 32 (the middle frame 320 and the rear cover 321), the circuit board 33, the camera module 34, and the like. The display screen 31 and the housing 32 are connected to each other, and the circuit board 33 is located in a space between the display screen 31 and the housing 32. The antenna module 1 may be directly carried on one or more components of the device body 3 (e.g. the circuit board 33 or the housing 32), or may be carried on one or more components of the device body 3 by other supporting structures. The antenna module 1 may be located in the device body 3 (i.e. in a space between the display screen 31 and the housing 32), or may be partially integrated on the housing 32 of the device body 3.

In another embodiment, referring to fig. 1 and 3, an electronic device 100 includes a device body 3 and an antenna array 2. The antenna array 2 is used for receiving and transmitting electromagnetic wave signals (may be 5G millimeter wave signals or electromagnetic wave signals in other frequency bands) so as to realize the communication function of the electronic device 100. The location of the antenna array 2 on the electronic device 100 is not specifically limited in this application, and fig. 3 is only an example and should not be construed as limiting the location of the antenna array 2 in the electronic device 100. The device body 3 is used for carrying the antenna array 2. Specifically, the apparatus body 3 includes, but is not limited to, components including the display screen 31, the housing 32 (the middle frame 320 and the rear cover 321), the circuit board 33, and the like. The display screen 31 and the housing 32 are connected to each other, and the circuit board 33 is located in a space between the display screen 31 and the housing 32. The antenna array 2 may be carried directly on one or more components of the device body 3, or may be carried on one or more components of the device body 3 by other support structures. The antenna array 2 may be located in the device body 3 (i.e. in a space between the display screen 31 and the housing 32), or may be partially integrated on the housing 32 of the device body 3.

Along with the development of light weight and miniaturization of the electronic device 100, the space reserved in the electronic device 100 for the antenna module 1 and the antenna array 2 is more and more limited, so that miniaturization and compactness of the antenna module 1 and the antenna array 2 are realized, the antenna module 1 and the antenna array 2 are favorably applied to the electronic device 100 with limited space, and a communication function of the electronic device 100 is realized.

Furthermore, millimeter wave communication is critical to today's 5G applications by virtue of its rich spectrum. In the millimeter wave communication age, antennas with broadband performance are the focus of future research. The 5G millimeter wave frequency band covers 24.75 GHz-27.5 GHz and 37 GHz-43.5 GHz, the size of the antenna is reduced along with the increase of the working frequency, and the design of the tightly coupled antenna with the 5G millimeter wave band is realized, so that the grating lobes of the directional diagram in the wide-angle broadband scanning process are avoided, the size of the antenna is required to be further reduced, and the section of the antenna is reduced.

To this end, the present application provides a small, low profile, broadband dual polarized dipole antenna module 1 and a small, low profile, broadband tightly coupled dual polarized dipole antenna array 2. The following embodiments specifically describe the antenna module 1 and the antenna array 2 provided in the present application.

As shown in fig. 4, fig. 4 is a schematic structural diagram of an antenna module 1 according to an embodiment of the present application. The antenna module 1 includes a radiating element 10 and a feeding element 20.

Referring to fig. 4 and 5, the radiation unit 10 includes a pair of first radiation arms 101 disposed along a first direction and a pair of second radiation arms 102 disposed along a second direction. Specifically, a pair of first radiation arms 101 are disposed opposite to and spaced apart from each other in the first direction. A pair of second radiating arms 102 are disposed opposite and spaced apart along the second direction. A pair of first radiating arms 101 form a dipole. A pair of second radiating arms 102 form a dipole. The first direction intersects the second direction. The first direction and the second direction are intersected, and the first direction and the second direction are two intersected directions in the same plane, or the first direction and the second direction are two staggered directions in space. In other words, the pair of first radiation arms 101 and the pair of second radiation arms 102 may be disposed coplanar or non-coplanar. In the following embodiments, a case where the pair of first radiation arms 101 and the pair of second radiation arms 102 are disposed on opposite sides is taken as an example, unless otherwise specified. The pair of first radiating arms 101 and the pair of second radiating arms 102 are arranged on different surfaces, which is favorable for compact arrangement of the pair of first radiating arms 101 and compact arrangement of the pair of second radiating arms 102, so that the size of the antenna module 1 along the first direction and the second direction is reduced, and the coupling between the pair of first radiating arms 101 and the pair of second radiating arms 102, namely the internal coupling effect of the antenna module 1, can be reduced. The angle between the first direction and the second direction may be 30 °, 35 °, 55 °, 60 °, 70 °, 85 °, 90 °, etc. In this embodiment, the first direction is perpendicular to the second direction, and the first direction may refer to the X-axis direction of fig. 4, and the second direction may refer to the Y-axis direction of fig. 4. Of course, in other embodiments, the first direction and the second direction may intersect but not be perpendicular. The material of the first radiation arm 101 and the material of the second radiation arm 102 are conductive materials. For example, the material of the first radiation arm 101 and the material of the second radiation arm 102 may be metal, alloy, etc. The shape of the first radiation arm 101 and the shape of the second radiation arm 102 are not specifically limited in this application, and the shape of the first radiation arm 101 and the shape of the second radiation arm 102 in fig. 5 are only examples. The shape of the first radiating arm 101 may be the same as or different from the shape of the second radiating arm 102.

The feeding unit 20 is disposed opposite to the radiating unit 10. Specifically, the feeding unit 20 and the radiating unit 10 are disposed opposite to each other in the thickness direction of the antenna module 1. The thickness direction of the antenna module 1 may refer to the Z-axis direction of fig. 4. The power feeding unit 20 includes a first power feeding member 201 and a second power feeding member disposed at a spacing. The second feeding member includes a third feeding portion 202, a first connecting portion 30, and a fourth feeding portion 203, which are sequentially connected.

The first feeding member 201 is made of a conductive material. For example, the material of the first feeding element 201 may be metal, alloy, or the like. The first power feeding member 201 includes a transmission portion 210, a first power feeding portion 211, and a second power feeding portion 212, which are sequentially connected. The transmission unit 210, the first power feeding unit 211, and the second power feeding unit 212 may be connected in this order, that is, the transmission unit 210, the first power feeding unit 211, and the second power feeding unit 212 may be integrally connected, or the transmission unit 210, the first power feeding unit 211, and the second power feeding unit 212 may be directly connected (for example, welded) together. It will be appreciated that the transmission part 210, the first power feeding part 211 and the second power feeding part 212 are sequentially connected to represent that the radio frequency current of the transmission part 210, the radio frequency current of the first power feeding part 211 and the radio frequency current of the second power feeding part 212 can be mutually transmitted. The transmission part 210 is used for electrically connecting to a radio frequency signal source. The first feeding portion 211 is disposed opposite to and coupled to one of the first radiation arms 101. The second feeding portion 212 is disposed opposite to and coupled with the other first radiation arm 101. The transmission portion 210 may be directly and electrically connected to a radio frequency signal source, or may be electrically connected to the radio frequency signal source through a conductive trace, a conductive member, or the like. The first feeding portion 211 is disposed opposite to one of the first radiating arms 101 in the thickness direction of the antenna module 1 and forms a first coupling gap. The second feeding portion 212 is disposed opposite to the other first radiating arm 101 in the thickness direction of the antenna module 1 and forms a second coupling gap. The first coupling gap may be the same as or different from the second coupling gap. In other words, the distance between the first feeding portion 211 and one first radiating arm 101 in the thickness direction of the antenna module 1, and the distance between the second feeding portion 212 and the other first radiating arm 101 in the thickness direction of the antenna module 1 may be the same or different. In the following embodiments, the first coupling gap and the second coupling gap are the same unless otherwise specified. The shape of the first power feeding member 201 is not particularly limited in this application. For example, the transmission portion 210 of the first feeding element 201 may be a feeding probe, a feeding post, etc., the first feeding portion 211 of the first feeding element 201 may be a feeding spring, a strip line, etc., and the second feeding portion 212 of the first feeding element 201 may be a feeding spring, a strip line, etc. In this embodiment, the first power feeding portion 211 and the second power feeding portion 212 are both circular power feeding sheets, however, in other embodiments, the shape of the first power feeding portion 211 and the shape of the second power feeding portion 212 may be elliptical, square, rectangular, triangular, other polygons, E-shape, L-shape, various special shapes, and the like.

In one application scenario, when the antenna module 1 is used for transmitting a wireless signal, a radio frequency signal source generates a radio frequency current (high frequency current) and transmits the radio frequency current to the transmission portion 210 of the first feeding member 201, and the transmission portion 210 of the first feeding member 201 transmits the received radio frequency current to the first feeding portion 211 of the first feeding member 201 and the second feeding portion 212 of the first feeding member 201, respectively. The first feeding portion 211 of the first feeding member 201 transmits a radio frequency current to a first radiating arm 101 through coupling with the first radiating arm 101, and the first radiating arm 101 converts the received radio frequency current into a wireless signal to radiate toward the outside of the antenna module 1. The second feeding portion 212 of the first feeding member 201 transmits a radio frequency current to the first radiating arm 101 through coupling with the other first radiating arm 101, and the first radiating arm 101 converts the received radio frequency current into a wireless signal to radiate toward the outside of the antenna module 1. In another application scenario, when the antenna module 1 is used for receiving a wireless signal, the pair of first radiating arms 101 receives the wireless signal in the space and converts the wireless signal into a radio frequency current, and the radio frequency current is transmitted to the first feeding portion 211 of the first feeding member 201 and the second feeding portion 212 of the first feeding member 201, respectively, and the received radio frequency current is transmitted to the radio frequency signal source through the transmission portion 210 by the first feeding portion 211 of the first feeding member 201 and the second feeding portion 212 of the first feeding member 201.

The third power feeding portion 202 is made of a conductive material. For example, the material of the third power feeding portion 202 may be metal, alloy, or the like. One end of the third feeding portion 202 is electrically connected to a second radiating arm 102, and the other end of the third feeding portion 202 is electrically connected to a radio frequency signal source. The third feeding portion 202 is configured to transmit radio frequency current between the second radiating arm 102 and a radio frequency signal source. One end of the third feeding portion 202 may be directly electrically connected to the second radiating arm 102. The other end of the third feeding portion 202 may be directly electrically connected to a radio frequency signal source, or may be electrically connected to a radio frequency signal source through a conductive trace, a conductive member, or the like. The shape of the third power feeding portion 202 is not particularly limited in this application. For example, the third feeding portion 202 may be a feeding probe, a feeding spring, a feeding post, or the like.

In an application scenario, when the antenna module 1 is used for transmitting a wireless signal, the rf signal source generates an rf current (high-frequency current) and transmits the rf current to the third feeding portion 202, and the third feeding portion 202 transmits the received rf current to a second radiating arm 102 and converts the rf current into the wireless signal through the second radiating arm 102 to radiate towards the outside of the antenna module 1. In another application scenario, when the antenna module 1 is configured to receive a wireless signal, the second radiating arm 102 receives the wireless signal in the space and converts the wireless signal into a radio frequency current, and the radio frequency current is transmitted to the third feeding portion 202, and the third feeding portion 202 transmits the received radio frequency current to the radio frequency signal source.

The fourth power feeding portion 203 is made of a conductive material. For example, the material of the fourth power feeding portion 203 may be metal, alloy, or the like. One end of the fourth feeding portion 203 is electrically connected to the other second radiating arm 102, and the other end of the fourth feeding portion 203 is electrically connected to the third feeding portion 202 through the first connecting portion 30. The fourth feeding portion 203 is configured to transmit radio frequency current between the second radiating arm 102 and the third feeding portion 202. One end of the fourth feeding portion 203 may be directly electrically connected to the second radiating arm 102. The shape of the fourth power feeding portion 203 is not particularly limited in this application. For example, the fourth feeding portion 203 may be a feeding probe, a feeding spring, a feeding post, or the like.

In an application scenario, when the antenna module 1 is used for transmitting a wireless signal, the rf signal source generates an rf current (high-frequency current) and transmits the rf current to the third feeding portion 202, the rf current of the third feeding portion 202 is transmitted to the fourth feeding portion 203 through the first connection portion 30, and the fourth feeding portion 203 transmits the received rf current to the other second radiation arm 102 and converts the received rf current into a wireless signal through the second radiation arm 102 to radiate towards the outside of the antenna module 1. In another application scenario, when the antenna module 1 is used for receiving a wireless signal, the other second radiating arm 102 receives the wireless signal in the space and converts the wireless signal into a radio frequency current to be transmitted to the fourth feeding portion 203, and the fourth feeding portion 203 transmits the received radio frequency current to the first connecting portion 30 and transmits the radio frequency current to the radio frequency signal source through the first connecting portion 30 and the third feeding portion 202.

The first connection part 30 is electrically connected between the other ends of the third feeding part 202 and the fourth feeding part 203, and is used for transmitting radio frequency current between the third feeding part 202 and the fourth feeding part 203 and for adjusting a phase difference between the radio frequency current of the third feeding part 202 and the fourth feeding part 203. It can be understood that, in the present application, one second radiating arm 102 of the pair of second radiating arms 102 directly obtains the radio frequency current through the third feeding portion 202, and the other second radiating arm 102 obtains the radio frequency current through the fourth feeding portion 203, the first connecting portion 30 and the third feeding portion 202. The first connection portion 30 may extend between the third power feeding portion 202 and the fourth power feeding portion 203 in a bent or straight manner. The shape, size, etc. of the first connecting portion 30 are not particularly limited in this application, and fig. 5 is merely an example of the first connecting portion 30 and should not be construed as limiting the structure of the first connecting portion 30. In one embodiment, the first connection part 30 may be symmetrical along a line between the third feeding part 202 and the fourth feeding part 203. The first connection portion 30 may include a conductive wire, a conductive post, a conductive sheet, and the like. The material of the first connection portion 30 may be metal, alloy, or the like. The first connection portion 30 is configured to delay a radio frequency current of the fourth feeding portion 203, which is not directly electrically connected to the radio frequency signal source, relative to a radio frequency current of the third feeding portion 202, which is directly electrically connected to the radio frequency signal source, so as to delay a radio frequency current between the pair of second radiating arms 102, thereby enabling a phase difference between radio frequency currents between the pair of second radiating arms 102 to meet design requirements. The length of the first connection portion 30 may be designed based on specific phase difference requirements. For example, the length of the first connection portion 30 may be a quarter wavelength, a half wavelength, etc. of the operating frequency of the antenna module 1.

In one possible application scenario, the first connection portion 30 is configured to adjust a phase difference between the radio frequency current of the third feeding portion 202 and the radio frequency current of the fourth feeding portion 203, so that the third feeding portion 202 and the fourth feeding portion 203 have opposite or same phase radio frequency currents, that is, a phase difference between the radio frequency current of the third feeding portion 202 and the radio frequency current of the fourth feeding portion 203 is n pi (where n is greater than or equal to 1 and is an integer), so that a phase difference between the radio frequency currents of the pair of second radiating arms 102 is n pi. Alternatively, the first connection part 30 is used for adjusting the phase difference between the rf current of the third feeding part 202 and the rf current of the fourth feeding part 203 so that the phase difference between the rf current of the third feeding part 202 and the rf current of the fourth feeding part 203 is 180 °. Of course, in other application scenarios, the first connection portion 30 may be used to adjust the phase difference between the radio frequency current of the third feeding portion 202 and the radio frequency current of the fourth feeding portion 203, so that the phase difference between the third feeding portion 202 and the fourth feeding portion 203 is 360 °. The third feeding part 202 and the fourth feeding part 203 have opposite or same-phase radio frequency current through the adjustment of the first connecting part 30, so that the pair of second radiating arms 102 have opposite or same-phase radio frequency current, and the linear polarization of the pair of second radiating arms 102 can be realized, thereby being beneficial to the communication between the antenna module 1 and equipment with the same linear polarization, and improving the benefit and efficiency of the antenna module 1.

Referring to fig. 5 and fig. 6, fig. 6 is a schematic structural diagram of an antenna module 1 according to an embodiment of the present application further including a dielectric layer 40. The number of dielectric layers 40 is not particularly limited in this application. The pair of first radiating arms 101 may be carried on the surface of the dielectric layer 40 or inside the dielectric layer 40, the pair of second radiating arms 102 may be carried on the surface of the dielectric layer 40 or inside the dielectric layer 40, and the first power feeding member 201, the third power feeding portion 202, and the fourth power feeding portion 203 may penetrate through the dielectric layer 40.

The antenna module 1 provided by the application includes a pair of first radiating arms 101, a pair of second radiating arms 102, a first feeding member 201, a third feeding portion 202, a fourth feeding portion 203 and a first connecting portion 30, since the first feeding member 201 is electrically connected with a radio frequency signal source and is coupled to the pair of first radiating arms 101, the third feeding portion 202 is electrically connected with the radio frequency signal source and is electrically connected with one second radiating arm 102, the fourth feeding portion 203 is electrically connected with the other second radiating arm 102, and the first connecting portion 30 is electrically connected between the third feeding portion 202 and the fourth feeding portion 203, the first feeding member 201, the third feeding portion 202, the first connecting portion 30 and the fourth feeding portion 203 form a feeding system of the pair of first radiating arms 101 and the pair of second radiating arms 102, and the feeding system formed by the first feeding member 201, the third feeding portion 202, the first connecting portion 30 and the fourth feeding portion 203 is simple in structure and beneficial to production. The feeding units (the first feeding member 201, the third feeding portion 202, and the fourth feeding portion 203) and the radiating units (the pair of first radiating arms 101 and the pair of second radiating arms 102) are stacked, and the first connecting portion 30 is electrically connected between the third feeding portion 202 and the fourth feeding portion 203, so that the arrangement of the first connecting portion 30 on the layer where the feeding unit 10 is located is facilitated, the section of the antenna module 1 is reduced, and the volume of the antenna module 1 is reduced. In addition, the first connection portion 30 is configured to adjust a phase difference between radio frequency currents of the third feeding portion 202 and the fourth feeding portion 203, and can control the phase difference between radio frequency currents of the pair of second radiating arms 102, so as to implement adjustment of radiation directions, linear polarization, etc. of the pair of second radiating arms 102, thereby being beneficial to improving communication performance when communicating with devices having the same polarization.

Referring to fig. 6 and 7, the first connection portion 30 may be disposed at the same layer as the feeding unit 20. In other words, the first connection portion 30 is located between a side of the radiating element 10 facing the feeding element 20 and a side of the feeding element 20 facing away from the radiating element 10 in the thickness direction of the antenna module 1. It is understood that the first connection portion 30 is provided in the same layer as the first power feeding member 201, the third power feeding portion 202, and the fourth power feeding portion 203. In one embodiment, the first connection portion 30 may be carried by the same dielectric layer 40 as the first feeding element 201, the third feeding portion 202, and the fourth feeding portion 203. By arranging the first connection portion 30 in the same layer as the feeding unit 20, the cross section of the antenna module 1 is not increased, which is advantageous for low cross section and miniaturization of the antenna module 1.

As shown in fig. 8, the transmission part 210 is bent and connected to the first power feeding part 211. In other words, the extending direction of the transmission part 210 is different from the extending direction of the first feeding part 211. In one possible embodiment, the transmission portion 210 extends in the thickness direction (Z-axis direction) of the antenna module 1, and the first feeding portion 211 is located in the XY plane, i.e., the first feeding portion 211 extends in the X-axis direction or the Y-axis direction. It can be understood that in this embodiment, the transmission portion 210 is bent and connected to the first feeding portion 211 at approximately 90 °, that is, the transmission portion 210 and the first feeding portion 211 form an "L" shaped feeding structure. Since the transmission portion 210 is electrically connected to the rf signal source, and the transmission portion 210 is bent and connected to the first feeding portion 211, the rf current generated by the rf signal source can be transmitted to the first feeding portion 211 through the transmission portion 210, and then coupled to the first radiating arm 101 through the first feeding portion 211.

By bending the transmission part 210 and the first feeding part 211, it is beneficial to arranging and coupling the first feeding part 211 and one first radiating arm 101 oppositely along the thickness direction of the antenna module 1, arranging and coupling the second feeding part 212 and the other second radiating arm 102 oppositely along the thickness direction of the antenna module 1, arranging the transmission part 210 and the first feeding part 211 in the thickness direction of the antenna module 1 as well, forming the vertically arranged antenna module 1, and reducing the size of the antenna module 1, so as to facilitate miniaturization of the antenna module 1.

As shown in fig. 8, the antenna array 2 further includes a second connection portion 50. One end of the second connection part 50 is electrically connected to the first feeding part 211, the other end of the second connection part 50 is electrically connected to the second feeding part 212, and the second connection part 50 is used for transmitting radio frequency current between the first feeding part 211 and the second feeding part 212 and for adjusting a phase difference between the radio frequency current of the first feeding part 211 and the radio frequency current of the second feeding part 212. Specifically, one end of the second connection part 50 is directly electrically connected to the first power feeding part 211, and the other end of the second connection part 50 is directly electrically connected to the second power feeding part 212. The second connection portion 50 may be disposed coplanar with the first power feeding portion 211 and the second power feeding portion 212, or may be disposed off-plane. In one possible embodiment, the first feeding portion 211, the second connection portion 50, and the second feeding portion 212 may be integrally formed. The shape, size, etc. of the second connection portion 50 are not particularly limited in this application, and fig. 8 is merely an example of the second connection portion 50 and should not be construed as limiting the structure of the second connection portion 50. For example, in other embodiments, the second connection portion 50 may be bent or curved to extend. The material of the second connection portion 50 may be metal, alloy, or the like. The second connection portion 50 is configured to generate a phase delay of the rf current of the second feeding portion 212 relative to the rf current of the first feeding portion 211, so that a phase difference of the rf currents between the pair of first radiating arms 101 meets a design requirement. The length of the second connection portion 50 may be designed based on specific phase difference requirements. For example, the length of the second connection portion 50 may be a quarter wavelength, a half wavelength, etc. of the operating frequency of the antenna module 1.

It will be appreciated that the rf current generated by the rf signal source is transmitted through the transmission portion 210 to the first feeding portion 211 and coupled to one of the first radiating arms 101 through the first feeding portion 211, and is also transmitted through the first feeding portion 211, the second connection portion 50 to the second feeding portion 212 and coupled to the other of the first radiating arms 101 through the second feeding portion 212.

In one possible application scenario, the second connection portion 50 is configured to adjust a phase difference between radio frequency currents of the first feeding portion 211 and the second feeding portion 212, and since the first feeding portion 211 is coupled to one first radiating arm 101 and the second feeding portion 212 is coupled to the other first radiating arm 101, the second connection portion 50 may adjust radio frequency currents having opposite phases or in phases between radio frequency currents of the first feeding portion 211 and the second feeding portion 212, so that radio frequency currents having opposite phases or in phases between the pair of first radiating arms 101, that is, a phase difference between radio frequency currents of the pair of first radiating arms 101 is n pi (where n is greater than or equal to 1 and is an integer). By adjusting the second connection portion 50 to enable the pair of first radiating arms 101 to have opposite-phase radio frequency current or same-phase radio frequency current, linear polarization of the pair of first radiating arms 101 can be achieved, so that communication between the antenna module 1 and equipment with the same polarization is facilitated, and benefits and efficiency of the antenna module 1 are improved.

It will be appreciated that in this application, the pair of first radiating arms 101 may form a linear polarization and the pair of second radiating arms 102 may form a linear polarization, i.e. the antenna module 1 may be a cross dual polarized dipole antenna module.

Alternatively, the first direction may be orthogonal to the second direction, and the pair of first radiating arms 101 and the pair of second radiating arms 102 may form horizontal, vertical dual polarization, or positive and negative 45 ° dual polarization. The horizontal and vertical dual polarization may receive antenna signals in a horizontal polarization direction and antenna signals in a vertical polarization direction, thereby forming an orthogonal dual polarized dipole antenna module 1 to improve performance of the antenna module 1 when communicating with devices having horizontal polarization and/or vertical polarization. The antenna signals in any polarization direction can be received by the positive and negative 45-degree dual polarization, so that the orthogonal dual-polarized dipole antenna module 1 is formed, and the performance of the antenna module 1 for receiving wireless signals in all directions is improved.

Referring to fig. 6 and 8, the second connection portion 50 is disposed at the same layer as the feeding unit 20. In other words, the second connection portion 50 is located between a side of the radiating element 10 facing the feeding element 20 and a side of the feeding element 20 facing away from the radiating element 10 in the thickness direction of the antenna module 1. It is understood that the second connection portion 50 is disposed in the same layer as the first power feeding member 201, the third power feeding portion 202, and the fourth power feeding portion 203. In one embodiment, the second connection portion 50 may be carried by the same dielectric layer 40 as the first feeding element 201, the third feeding portion 202, and the fourth feeding portion 203. By providing the second connection portion 50 in the same layer as the feeding unit 20, the cross section of the antenna module 1 is not increased, which is advantageous for low profile and miniaturization of the antenna module 1.

In one embodiment, as shown in fig. 9, the first connection portion 30 includes a first sub-connection portion 301, a second sub-connection portion 302, and a third sub-connection portion 303, which are sequentially connected. The first sub-connection portion 301, the second sub-connection portion 302, and the third sub-connection portion 303 may be sequentially connected, that is, the first sub-connection portion 301, the second sub-connection portion 302, and the third sub-connection portion 303 are integrally connected, or the first sub-connection portion 301, the second sub-connection portion 302, and the third sub-connection portion 303 may be directly connected (for example, welded) together. It will be appreciated that the first sub-connection 301, the second sub-connection 302 and the third sub-connection 303 are sequentially connected to represent that the radio frequency current of the first sub-connection 301, the radio frequency current of the second sub-connection 302 and the radio frequency current of the third sub-connection 303 can be mutually transmitted. One end of the first sub-connection portion 301 remote from the second sub-connection portion 302 is electrically connected to the third feeding portion 202. One end of the third sub-connection part 303, which is remote from the second sub-connection part 302, is electrically connected to the fourth feeding part 203. It can be appreciated that the radio frequency current of the third feeding portion 202 may be transmitted to the fourth feeding portion 203 through the first sub-connection portion 301, the second sub-connection portion 302 and the third sub-connection portion 303 in sequence; the radio frequency current of the fourth feeding portion 203 may be transmitted to the third feeding portion 202 through the third sub-connection portion 303, the second sub-connection portion 302, and the first sub-connection portion 301 in sequence. The first sub-connection portion 301, the second sub-connection portion 302, and the third sub-connection portion 303 may be transmission lines (e.g., strip lines, bar lines, etc.).

The first sub-connection 301, the second sub-connection 302 and the third sub-connection 303 are coplanar. The first sub-connection portion 301, the second sub-connection portion 302 and the third sub-connection portion 303 are coplanar, which is favorable for forming the first sub-connection portion 301, the second sub-connection portion 302 and the third sub-connection portion 303 in the same plane of the dielectric layer 40, and can reduce the production difficulty of the first connection portion 30 and improve the mass productivity and the production efficiency of the antenna module 1 while adjusting the phase difference of radio frequency currents between the third feeding portion 202 and the fourth feeding portion 203 to realize the linear polarization of the pair of second radiating arms 102. Furthermore, the overall cross section of the antenna module 1 can be reduced.

Wherein at least part of the first sub-connection 301 may extend in a first direction, the second sub-connection 302 may extend in a second direction, and at least part of the third sub-connection 303 may extend in the first direction. It can be understood that the extending direction 1 of at least part of the first sub-connection portion 301 is the same as the extending direction of at least part of the third sub-connection portion 303, and the extending direction of the second sub-connection portion 302 intersects with the extending direction of at least part of the first sub-connection portion 301 and the extending direction of at least part of the third sub-connection portion 303. In this embodiment, since the extending direction of the first sub-connection portion 301, the extending direction of the second sub-connection portion 302, and the extending direction of the third sub-connection portion 303 are not identical, the bent first connection portion 30 may be formed, so that the extending dimension of the first connection portion 30 is beneficial to meeting the design requirement of the phase difference between the rf current of the third feeding portion 202 and the rf current of the fourth feeding portion 203, and meanwhile, the space occupied by the bent first connection portion 30 is smaller, which is also beneficial to improving the compactness of the antenna module 1.

In one embodiment, the first sub-connection 301 includes a first sub-connection 3010 and a second sub-connection 3011 that are bent and connected. Specifically, an end of the first sub-connection section 3010 remote from the second sub-connection section 3011 may be directly electrically connected to the third feeding section 202, and an end of the second sub-connection section 3011 remote from the first sub-connection section 3010 may be directly electrically connected to an end of the second sub-connection section 302. A portion of the first sub-connection part 3010 may extend in a first direction and a portion of the second sub-connection part 3011 may extend in a second direction. The bending angle between the first and second sub-connection sections 3010 and 3011 may be less than 90 °, or equal to 90 °, or greater than 90 °; or the first sub-connection 3010 and the second sub-connection 3011 may be connected in an arc shape. The third sub-connection part 303 includes a third sub-connection part 3030 and a fourth sub-connection part 3031 which are connected by bending. Specifically, an end of the third sub-connection part 3030 remote from the fourth sub-connection part 3031 may be directly electrically connected to the fourth power feeding part 203, and an end of the fourth sub-connection part 3031 remote from the third sub-connection part 3030 may be directly electrically connected to the other end of the second sub-connection part 302. A portion of the third sub-connection part 3030 may extend in the first direction and a portion of the fourth sub-connection part 3031 may extend in the second direction. The bending angle between the third sub-connection part 3030 and the fourth sub-connection part 3031 may be less than 90 °, or equal to 90 °, or greater than 90 °; or the third sub-connection part 3030 and the fourth sub-connection part 3031 may be connected in an arc shape. It will be appreciated that in the present embodiment, a portion of the first sub-connection 301 extends in the first direction and a portion of the third sub-connection 303 extends in the first direction.

By making the first sub-connection portion 301 include the first sub-connection portion 3010 and the second sub-connection portion 3011 that are connected by bending, the bent first sub-connection portion 301 can be formed, so that the size of the first connection portion 30 is further prolonged to meet the design requirement of the phase difference between the radio frequency current of the third feeding portion 202 and the radio frequency current of the fourth feeding portion 203, and meanwhile, the space occupied by the first connection portion 30 is further reduced by the bent first sub-connection portion 301, which is more beneficial to improving the compactness of the antenna module 1. By making the third sub-connection portion 303 include the third sub-connection portion 3030 and the fourth sub-connection portion 3031 that are connected by bending, the bent third sub-connection portion 303 can be formed, so that the size of the first connection portion 30 is further prolonged to meet the design requirement of the phase difference between the radio frequency current of the third feeding portion 202 and the radio frequency current of the fourth feeding portion 203, and meanwhile, the space occupied by the first connection portion 30 is further reduced by the bent third sub-connection portion 303, which is further beneficial to improving the compactness of the antenna module 1.

Optionally, the first sub-connection 301 is symmetrical to the third sub-connection 303. In other words, the first sub-connection part 3010 and the third sub-connection part 3030 are symmetrical about the center line of the second sub-connection part 302, and the second sub-connection part 3011 and the fourth sub-connection part 3031 are symmetrical about the center line of the second sub-connection part 302. Wherein, the center line of the second sub-connection part 302 may refer to the M line in fig. 9. By making the first sub-connection part 301 symmetrical with the third sub-connection part 303, it is advantageous to form the first connection part 30 with symmetrical structure, thereby facilitating the phase difference between the third power feeding part 202 and the fourth power feeding part 203 to be n pi by the length design of the first connection part 30.

Alternatively, as shown in fig. 10, the second connection part 50, the first power feeding part 211, and the second power feeding part 212 are coplanar. In the present embodiment, the coplanarity of the second connection portion 50, the first feeding portion 211 and the second feeding portion 212 is beneficial to realizing that the second connection portion 50 is electrically connected between the first feeding portion 211 and the second feeding portion 212, and the thickness dimension of the antenna module 1 is not increased, and the low profile of the antenna module 1 can be further realized while adjusting the phase difference of the radio frequency currents between the pair of first radiating arms 101 to realize the linear polarization of the pair of first radiating arms 101. In addition, the second connection portion 50, the first feeding portion 211 and the second feeding portion 212 are coplanar, which is beneficial to molding the second connection portion 50, the first feeding portion 211 and the second feeding portion 212 in the same plane, so that the production difficulty of the second connection portion 50 and the first feeding member 201 can be reduced while the phase difference of the radio frequency current between the first feeding portion 211 and the second feeding portion 212 is adjusted to realize the linear polarization of the pair of first radiating arms 101, and the mass production and the production efficiency of the antenna module 1 are improved. Furthermore, the overall cross section of the antenna module 1 can be reduced.

In one embodiment, the first feeding portion 211 and the second feeding portion 212 are disposed opposite to each other along the first direction, and the second connecting portion 50 extends along the first direction. It can be understood that the first feeding portion 211, the second connection portion 50, and the second feeding portion 212 are arranged in a straight line. By arranging the first feeding portion 211 and the second feeding portion 212 opposite to each other in the first direction, and extending the second connection portion 50 in the first direction, a phase difference between the radio frequency current of the first feeding portion 211 and the radio frequency current of the second feeding portion 212 is n pi, which is beneficial to avoiding interference between the second connection portion 50 and the first connection portion 30, and improving phase accuracy between the third feeding portion 202 and the fourth feeding portion 203, and between the first feeding portion 211 and the second feeding portion 212, so that the pair of first radiation arms 101 and the pair of second radiation arms 102 have higher phase accuracy.

Alternatively, as shown in fig. 11, the orthographic projection of the transmission portion 210 on the plane of the pair of first radiation arms 101 is located in the area between the orthographic projection of the third feeding portion 202 on the plane of the pair of first radiation arms 101, the orthographic projection of the fourth feeding portion 203 on the plane of the pair of first radiation arms 101, and the orthographic projection of the first connection portion 30 on the plane of the pair of first radiation arms 101. It can be understood that the third power feeding portion 202, the fourth power feeding portion 203, and the first connection portion 30 are enclosed on the outer peripheral side of the transmission portion 210, that is, the transmission portion 210 is located between the first connection portion 30, the third power feeding portion 202, and the fourth power feeding portion 203 in the first direction; in the second direction, the transmission section 210 is also located between the first connection section 30, the third feeding section 202, and the fourth feeding section 203. By positioning the orthographic projection of the input portion 210 on the surface of the pair of first radiating arms 101 at the orthographic projection of the third feeding portion 202 on the surface of the pair of first radiating arms 101, the orthographic projection of the fourth feeding portion 203 on the surface of the pair of first radiating arms 101, and the region between the orthographic projections of the first connecting portion 30 on the surface of the pair of first radiating arms 101, the arrangement compactness of the first feeding member 201, the third feeding portion 202, and the fourth feeding portion 203 can be further improved while ensuring that the first feeding member 201, the third feeding portion 202, and the fourth feeding portion 203 are spaced apart to ensure the isolation requirement, so that the antenna module 1 is compact in structure and small in size.

Further, as shown in fig. 12, the antenna module 1 further includes a ground member 60. The grounding member 60 may be made of metal, alloy, or the like. The ground 60 may be electrically connected to the middle frame 320 of the electronic device 100 (refer to fig. 2), or the ground 60 may be electrically connected to a reference ground of the circuit board 33 of the electronic device 100, or the ground 60 may be integrated with a reference ground of the circuit board 33 of the electronic device 100. The ground 60 is located on the side of the feed unit 20 remote from the radiating element 10. In other words, the radiation unit 10, the power feeding unit 20, and the ground 60 are stacked in this order. The ground 60 covers a pair of first radiating arms 101 and a pair of second radiating arms 102. It will be appreciated that the area of the ground 60 is greater than or equal to the sum of the areas of the pair of first radiating arms 101 and the area of the pair of second radiating arms 102. One end of the transmission part 210, which is far from the first power feeding part 211, penetrates through the grounding piece 60, one end of the third power feeding part 202, which is far from the second radiation arm 102, penetrates through the grounding piece 60, and one end of the fourth power feeding part 203, which is far from the second radiation arm 102, is spaced from the grounding piece 60. It can be appreciated that the end of the transmission portion 210 of the first feeding element 201, which is far away from the first feeding portion 211, extends out of the antenna module 1 by penetrating through the grounding element 60, so as to be convenient for electrically connecting to a radio frequency signal source; one end of the third feeding portion 202, which is far away from the second radiating arm 102, extends out of the antenna module 1 through the ground member 60, so as to be convenient for electrically connecting with a radio frequency signal source; the fourth feeding portion 203 is located between the grounding member 60 and the second radiating arm 102, and the fourth feeding portion 203 is electrically connected to the second radiating arm 102, and a gap is formed between the fourth feeding portion 203 and the grounding member 60, so as to avoid the rf current of the fourth feeding portion 203 from directly returning to the ground. The transmission portion 210, the third feeding portion 202, and the fourth feeding portion 203 are not directly electrically connected to the grounding element 60.

By providing the grounding member 60, the radiation signals of the pair of first radiation arms 101 and the pair of second radiation arms 102 can be reflected, so that the transmission distance of the antenna module 1 can be prolonged, and the communication performance of the antenna module 1 can be improved.

When the plurality of antenna modules 1 form the antenna array 2, the grounding elements 60 of the plurality of antenna modules 1 may form an integral grounding element 60.

Further, referring to fig. 13 and 14, the antenna module 1 further includes a pair of first coupling patches 70 and a pair of second coupling patches 80. A pair of first coupling patches 70 are disposed opposite and coupled to a pair of first radiating arms 101, respectively. A pair of second coupling patches 80 are disposed opposite and coupled to a pair of second radiating arms 102, respectively. It will be appreciated that a pair of first coupling patches 70 are disposed opposite each other in a first direction, with one of the first coupling patches 70 being disposed opposite and coupled to one of the first radiating arms 101 and the other of the first coupling patches 70 being disposed opposite and coupled to the other of the first radiating arms 101. A pair of second coupling patches 80 are oppositely disposed along a second direction, with one second coupling patch 80 being oppositely disposed and coupled to one second radiating arm 102 and the other second coupling patch 80 being oppositely disposed and coupled to the other second radiating arm 102. The shape, size, material, etc. of the first coupling patch 70 and the second coupling patch 80 are not particularly limited in this application. For example, the shape of the first coupling patch 70 may be circular, square, rectangular, triangular, oval, other polygonal shapes, various shaped, etc. The shape of the second coupling patch 80 may be circular, square, rectangular, triangular, oval, and other polygonal shapes, various shaped, etc. The dimension of the first coupling patch 70 in the first direction may be less than, equal to, or greater than the dimension of the first radiating arm 101 in the first direction; the dimension of the first coupling patch 70 in the second direction may be less than, equal to, or greater than the dimension of the first radiating arm 101 in the second direction. The dimension of the second coupling patch 80 in the first direction may be less than, equal to, or greater than the dimension of the second radiating arm 102 in the first direction; the dimension of the second coupling patch 80 in the second direction may be less than, equal to, or greater than the dimension of the second radiating arm 102 in the second direction.

The material of the first coupling patch 70 may be metal, alloy, or the like. The material of the second coupling patch 80 may be metal, alloy, or the like. Wherein the coupling of the first coupling patch 70 with the first radiating arm 101 may be understood as forming a third coupling gap between the first coupling patch 70 and the first radiating arm 101. Coupling of the second coupling patch 80 with the second radiating arm 102 may be understood as forming a fourth coupling gap between the second coupling patch 80 and the second radiating arm 102. The third coupling gap may be the same as or different from the fourth coupling gap.

By arranging a pair of first coupling patches 70 to be coupled with a pair of first radiating arms 101 respectively, the pair of first coupling patches 70 can be used as matching circuits of the pair of first radiating arms 101 respectively, so that the current distribution of the pair of first radiating arms 101 can be adjusted by designing the structure and the position of the pair of first coupling patches 70, the radiation effect of the pair of first radiating arms 101 can be realized, and the broadband and ultra-wideband characteristics of the antenna module 1 can be improved. Of course, the pair of first coupling patches 70 may also serve as coupling branches of the pair of first radiating arms 101 to participate in radiation, so as to improve the communication performance of the antenna module 1. By arranging a pair of second coupling patches 80 to be coupled with a pair of second radiating arms 102 respectively, the pair of second coupling patches 80 can be used as matching circuits of the pair of second radiating arms 102 respectively, so that the current distribution of the pair of second radiating arms 102 can be adjusted by designing the structure and the position of the pair of second coupling patches 80, the radiating effect of the pair of second radiating arms 102 can be realized, and the broadband and ultra-wideband characteristics of the antenna module 1 can be improved. Of course, the pair of second coupling patches 80 may also serve as coupling branches of the pair of second radiating arms 102 to participate in radiation, so as to improve the communication performance of the antenna module 1.

Wherein a pair of first coupling patches 70 are located between the radiating element 10 and the ground 60. It can be understood that the first radiating arm 101, the first coupling patch 70, and the ground member 60 are sequentially arranged along the thickness direction of the antenna module 1. The antenna module 1 further comprises at least one first coupling ground element 701 and at least one second coupling ground element 702, wherein the at least one first coupling ground element 701 is electrically connected between one first coupling patch 70 and the ground element 60, and the at least one second coupling ground element 702 is electrically connected between the other first coupling patch 70 and the ground element 60. The number of the first coupling grounding members 701 and the number of the second coupling grounding members 702 are not particularly limited in this application. The number of first coupling grounds 701 may be the same as or different from the number of second coupling grounds 702. In one possible embodiment, the number of the first coupling grounding pieces 701 is two, and the two first coupling grounding pieces 701 are electrically connected between one first coupling patch 70 and the grounding piece 60; the number of the second coupling grounding pieces 702 is two, and the two second coupling grounding pieces 702 are electrically connected between the other first coupling patch 70 and the grounding piece 60.

By locating a pair of first coupling patches 70 between the radiating element 10 and the ground 60, the antenna module 1 can be made to have a lower profile. The first coupling patch 70 is grounded through the first coupling grounding member 701, so that the first coupling grounding member 701 and the first radiating arm 101 can also form coupling, thereby increasing the adjustment diversity of the current distribution of the first radiating arm 101, realizing the bandwidth diversity of the antenna module 1, enabling the first coupling grounding member 701 to participate in radiation, and improving the communication performance of the antenna module 1. The other first coupling patch 70 is grounded through the second coupling grounding member 702, so that the second coupling grounding member 702 and the other first radiating arm 101 can also form coupling, thereby increasing the adjustment diversity of the current distribution of the other first radiating arm 101, realizing the bandwidth diversity of the antenna module 1, enabling the second coupling grounding member 702 to participate in radiation, and improving the communication performance of the antenna module 1.

Wherein a pair of second coupling patches 80 are located on a side of the radiating element 10 facing away from the ground 60. It can be understood that the second coupling patch 80, the second radiating arm 102, and the ground member 60 are sequentially arranged in the thickness direction of the antenna module 1. Since the pair of second coupling patches 80 are disposed opposite to and coupled with the pair of second radiating arms 102, respectively, and the first feeding portion 211 of the fourth feeding portion 203 is disposed opposite to and coupled with one of the second radiating arms 102, and the second feeding portion 212 of the fourth feeding portion 203 is disposed opposite to and coupled with the other of the second radiating arms 102, interference between the pair of second coupling patches 80 and the first feeding portion 211, the second feeding portion 212, and the feeding effect of the first feeding portion 211, the second feeding portion 212 on the pair of first radiating arms 101, and the adjusting effect of the pair of second coupling patches 80 on the pair of first radiating arms 101 can be avoided by positioning the pair of second coupling patches 80 on the side of the radiating element 10 facing away from the grounding element 60.

The antenna module 1 provided by the application can form a crossed or orthogonal dual-polarized dipole antenna module by designing the first connecting part 30 and the second connecting part 50. The structure of the first connection portion 30 and the arrangement manner of the first feeding member 201, the third feeding portion 202 and the fourth feeding portion 203 thereof can implement the design of the phase difference of the radio frequency currents between the third feeding portion 202 and the fourth feeding portion 203, thereby implementing the linear polarization of the pair of second radiation arms 102, improving the compactness of the antenna module 1 and reducing the section of the antenna module 1. The structure of the second connection portion 50 and the arrangement manner between the first feeding portion 211 and the second feeding portion 212 thereof can realize the design of the phase difference of radio frequency currents between the first feeding portion 211 and the second feeding portion 212, thereby realizing the linear polarization of a pair of first radiation arms 101, being beneficial to increasing the isolation between the second connection portion 50 and the first connection portion 30, avoiding the mutual interference between the second connection portion 50 and the first connection portion 30, and improving the phase precision of a pair of first radiation arms 101 and a pair of second radiation arms 102. The design of the first coupling patch 70 and the second coupling patch 80 can improve the radiation effect and the matching effect of the antenna module 1 while ensuring the low profile of the antenna module 1, so that the antenna module 1 has better radiation performance and the bandwidth of the antenna module 1 is widened.

Referring to fig. 15 to 19, fig. 15 is a schematic diagram of an antenna array 2 according to an embodiment of the present application, fig. 17 is a schematic diagram of another antenna array 2 according to an embodiment of the present application, and fig. 19 is a schematic diagram of another antenna array 2 according to an embodiment of the present application. The antenna array 2 comprises a plurality of antenna modules 1. The plurality of antenna modules 1 are arranged in an array. The number of the antenna modules 1 included in the antenna array 2 and the array arrangement of the antenna array 2 are not particularly limited in this application. For example, the plurality of antenna modules 1 may be arranged in a linear array (or a plurality of rows and a plurality of columns), or the plurality of antenna modules 1 may be arranged in a matrix array (or a plurality of rows and a plurality of columns, and the rows and the columns are different), or the plurality of antenna modules 1 may be arranged in a square array (or a plurality of rows and a plurality of columns, and the rows and the columns are the same), etc. Wherein, the plurality of antenna modules 1 are arranged in an array along the first direction, and the first radiation arms 101 of two adjacent antenna modules 1 are coupled; and/or, the plurality of antenna modules 1 are arranged in an array along the second direction, and the second radiation arms 102 of two adjacent antenna modules 1 are coupled.

In one embodiment, as shown in fig. 15, the antenna array 2 includes four antenna modules 1. The four antenna modules 1 are arranged in a linear array along the first direction, and the first radiation arms 101 of two adjacent antenna modules 1 are coupled. The first direction may refer to the X-axis direction in fig. 15, and the four antenna modules 1 include four pairs of first radiating arms 101, where the four antenna modules 1 share three adjacent first radiating arms 101 and are coupled. The first direction is also the arrangement direction of the first radiating arms 101 of the four antenna modules 1. It can be understood that the first radiating arms 101 of the plurality of antenna modules 1 are arranged along the first direction, and the first radiating arms 101 of two adjacent antenna modules 1 are oppositely disposed along the first direction and form a coupling gap.

Alternatively, referring to fig. 15 and 16, the first radiating arms 101 of two adjacent antenna modules 1 are coupled in an interdigital manner. Specifically, the edge of the first radiating arm 101 of one antenna module 1 of the two adjacent antenna modules 1 forms one or more first notches 101a and one or more first extending portions 101b, the edge of the first radiating arm 101 of the other antenna module 1 forms one or more second notches 101c and one or more second extending portions 101d, the first extending portions 101b at least partially extend into the second notches 101c, the second extending portions 101d at least partially extend into the first notches 101a, and the edges of the first radiating arms 101 of the two adjacent antenna modules 1 intersect but do not contact to form an interdigital coupling. In one embodiment, in two adjacent antenna modules 1, the edge of the first radiating arm 101 of one antenna module 1 includes a plurality of first notches 101a and a plurality of first extending portions 101b, where the plurality of first notches 101a and the plurality of first extending portions 101b are disposed adjacent to each other in a crossing manner, that is, two adjacent first notches 101a are provided with one first extending portion 101b, and one first notch 101a is disposed between two adjacent first extending portions 101 b; the edge of the first radiating arm 101 of the other antenna module 1 includes a plurality of second notches 101c and a plurality of second extending portions 101d, where the plurality of second notches 101c and the plurality of second extending portions 101d are disposed adjacent to each other in a crossing manner, that is, two adjacent second notches 101c are provided with one second extending portion 101d, and one second notch 101c is disposed between two adjacent second extending portions 101 d. The first notch 101a may be rectangular, circular, oval, square, triangular, trapezoidal, other polygons, various special shapes, and the like. The second notch 101c may be rectangular, circular, oval, square, triangular, trapezoidal, other polygonal shapes, various shaped, etc. The first extension 101b may be rectangular, circular, oval, square, triangular, trapezoidal, other polygonal, various shaped, etc. The second extension 101d may be rectangular, circular, oval, square, triangular, trapezoidal, other polygonal, various shaped, etc.

By coupling the first radiating arms 101 of two adjacent antenna modules 1, a tightly coupled array antenna can be formed, thereby reducing the size of the antenna array 2 and improving the compactness of the antenna array 2. In addition, the mutual coupling effect of two adjacent antenna modules 1 can be utilized to realize the broadband and ultra-broadband characteristics of the antenna array 2. By making the first radiating arms 101 of two adjacent antenna modules 1 into an interdigital coupling, the transmission path of radio frequency current in the antenna array 2 can be increased, so that the effective electrical length of the antenna array 2 is increased, and the radiation performance of the antenna array 2 is improved.

In another embodiment, as shown in fig. 17, the antenna array 2 includes eight antenna modules 1. Eight antenna modules 1 are arranged in an array along the second direction, and the second radiation arms 102 of two adjacent antenna modules 1 are coupled. The second direction may refer to the Y-axis direction in fig. 17, and the eight antenna modules 1 include eight pairs of second radiating arms 102, where the eight antenna modules 1 share seven groups of adjacent second radiating arms 102 for coupling. The second direction is also the arrangement direction of the second radiating arms 102 of the eight antenna modules 1. It can be understood that the second radiating arms 102 of the plurality of antenna modules 1 are arranged along the second direction, and the second radiating arms 102 of two adjacent antenna modules 1 are oppositely disposed along the second direction and form a coupling gap.

Alternatively, referring to fig. 17 and 18, the second radiating arms 102 of two adjacent antenna modules 1 are coupled in an interdigital manner. Specifically, the edge of the second radiating arm 102 of one antenna module 1 of the two adjacent antenna modules 1 forms one or more third notches 102a and one or more third extending portions 102b, the edge of the second radiating arm 102 of the other antenna module 1 forms one or more fourth notches 102c and one or more fourth extending portions 102d, the third extending portions 102b at least partially extend into the fourth notches 102c, the fourth extending portions 102d at least partially extend into the third notches 102a, and the edges of the second radiating arms 102 of the two adjacent antenna modules 1 intersect but do not contact to form an interdigital coupling. In one embodiment, in two adjacent antenna modules 1, the edge of the second radiating arm 102 of one antenna module 1 includes a plurality of third notches 102a and a plurality of third extension portions 102b, where the plurality of third notches 102a and the plurality of third extension portions 102b are disposed adjacent to each other in a crossing manner, i.e., two adjacent third notches 102a are provided with one third extension portion 102b, and one third notch 102a is disposed between two adjacent third extension portions 102 b; the edge of the second radiating arm 102 of the other antenna module 1 includes a plurality of fourth notches 102c and a plurality of fourth extending portions 102d, where the fourth notches 102c and the fourth extending portions 102d are disposed adjacent to each other in a crossing manner, i.e., two adjacent fourth notches 102c are provided with one fourth extending portion 102d, and one fourth notch 102c is disposed between two adjacent fourth extending portions 102 d. The third notch 102a may be rectangular, circular, oval, square, triangular, trapezoidal, other polygonal shapes, various special shapes, etc. The fourth notch 102c may be rectangular, circular, oval, square, triangular, trapezoidal, other polygonal shapes, various shaped, etc. The third extension 102b may be rectangular, circular, oval, square, triangular, trapezoidal, other polygonal, various shaped, etc. The fourth extension 102d may be rectangular, circular, oval, square, triangular, trapezoidal, other polygonal, various shaped, etc.

By coupling the second radiating arms 102 of two adjacent antenna modules 1, a tightly coupled array antenna can be formed, thereby reducing the size of the antenna array 2 and improving the compactness of the antenna array 2. In addition, the mutual coupling effect of two adjacent antenna modules 1 can be utilized to realize the broadband and ultra-broadband characteristics of the antenna array 2. By making the second radiating arms 102 of two adjacent antenna modules 1 into an interdigital coupling, the transmission path of radio frequency current in the antenna array 2 can be increased, thereby increasing the effective electrical length of the antenna array 2 and improving the radiation performance of the antenna array 2.

In yet another embodiment, as shown in fig. 19, the antenna array 2 includes four antenna modules 1. The four antenna modules 1 comprise four pairs of first radiating arms 101 and four pairs of second radiating arms 102. The two antenna modules 1 are arranged in an array along the first direction, and the first radiation arms 101 of the two adjacent antenna modules 1 are coupled; the two antenna modules 1 are arranged in an array along the second direction, and the second radiation arms 102 of the two adjacent antenna modules 1 are coupled. The first direction may refer to the X-axis direction in fig. 19, and the second direction may refer to the Y-axis direction in fig. 19. In this embodiment, the first direction is perpendicular to the second direction. Of course, in other embodiments, the first direction and the second direction may intersect but not be perpendicular. The first radiation arms 101 of every two antenna modules 1 arranged in an array along the first direction are respectively arranged along the first direction, and the first radiation arms 101 of two adjacent antenna modules 1 are opposite along the first direction and form a coupling gap. The second radiation arms 102 of every two antenna modules 1 arranged in an array along the second direction are respectively arranged along the second direction, and the second radiation arms 102 of every two adjacent antenna modules 1 are oppositely arranged along the second direction and form a coupling gap.

Alternatively, as shown in fig. 19, the first radiating arms 101 of two adjacent antenna modules 1 are coupled in an interdigital manner, and the second radiating arms 102 of two adjacent antenna modules 1 are coupled in an interdigital manner. Specifically, the edge of the first radiating arm 101 of one antenna module 1 of the two antenna modules 1 arranged in an array along the first direction forms one or more fifth notches 101e and one or more fifth extending portions 101f, the edge of the first radiating arm 101 of the other antenna module 1 forms one or more sixth notches 101g and one or more sixth extending portions 101h, the fifth extending portions 101f at least partially extend into the sixth notches 101g, the sixth extending portions 101h at least partially extend into the fifth notches 101e, and the edges of the first radiating arms 101 of two adjacent antenna modules 1 intersect but do not contact to form an toe-intersecting coupling. The edge of the second radiating arm 102 of one antenna module 1 of the two antenna modules 1 arranged in an array along the second direction forms one or more seventh gaps 102e and one or more seventh extending portions 102f, the edge of the second radiating arm 102 of the other antenna module 1 forms one or more eighth gaps 102g and one or more eighth extending portions 102h, the seventh extending portion 102f extends at least partially into the eighth gap 102g, the eighth extending portion 102h extends at least partially into the seventh gap 102e, and the edges of the second radiating arms 102 of the two adjacent antenna modules 1 intersect but do not contact to form an interdigital coupling.

By coupling the first radiating arms 101 of two adjacent antenna modules 1 and the second radiating arms 102 of two adjacent antenna modules 1, a tightly coupled array antenna can be formed, thereby reducing the size of the antenna array 2 and improving the compactness of the antenna array 2. In addition, the mutual coupling effect of two adjacent antenna modules 1 can be utilized to realize the broadband and ultra-wideband characteristics. By making the first radiating arms 101 of two adjacent antenna modules 1 be in the toe-in type coupling, the second radiating arms 102 of two adjacent antenna modules 1 are in the toe-in type coupling, which can increase the transmission path of radio frequency current, thereby increasing the effective electrical length of the antenna array 2 and improving the radiation performance of the antenna array 2.

Alternatively, referring to fig. 20 and 21, at least one first radiating arm 101 of the pair of first radiating arms 101 is provided with a groove 1010, and the groove 1010 is used to change the flow path of the radio frequency current of the first radiating arm 101.

In one embodiment, as shown in fig. 20, one first radiating arm 101 in each antenna module 1 of the antenna array 2 is provided with a recess 1010. By providing the first radiating arm 101 with the groove 1010, the flow path of the radio frequency current on the surface of the first radiating arm 101 can be changed, thereby suppressing the surface wave. The grooves 1010 may be rectangular grooves, round grooves, square grooves, triangular grooves, other polygonal grooves, various special-shaped grooves, and the like. In this embodiment, rectangular grooves are taken as an example.

In another embodiment, as shown in fig. 21, a pair of first radiating arms 101 in each antenna module 1 of the antenna array 2 is provided with a groove 1010. By providing the pair of first radiating arms 101 with the groove 1010, the flow path of the radio frequency current on the surfaces of the pair of first radiating arms 101 can be changed, thereby suppressing the surface wave. The grooves 1010 may be rectangular grooves, round grooves, square grooves, triangular grooves, other polygonal grooves, various special-shaped grooves, and the like. In this embodiment, rectangular grooves are taken as an example.

Further, referring to fig. 21 and 22, the antenna array 2 may further include a pair of first coupling branches 1011 and/or a pair of second coupling branches 1012. In one embodiment, as shown in fig. 21, the antenna array 2 includes a pair of first coupling branches 1011. A pair of first coupling branches 1011 are disposed opposite to each other in the first direction and are coupled to first radiating arms 101 of the edges of the antenna array 2 in the first direction, respectively. Optionally, the first coupling branch 1011 is coupled with the first radiating arm 101 of the edge of the antenna array 2 in the first direction in an apodized manner. In another embodiment, as shown in fig. 22, the antenna array 2 further includes a pair of second coupling branches 1012. A pair of second coupling stubs 1012 are disposed opposite each other in the second direction and are coupled to the second radiating arms 102 of the edges of the antenna array 2 in the second direction, respectively. Optionally, the second coupling branch 1012 is coupled with the second radiating arm 102 of the edge of the antenna array 2 along the second direction in an apodized manner. By arranging the first coupling branch 1011, the radiation effect of the first radiation arm 101 at the edge of the antenna array 2 along the first direction can be adjusted, so that the first radiation arm 101 at the edge and the first radiation arm 101 with the middle being in toe coupling have the same or similar radiation effect, and the first radiation arm 101 at the edge also has corresponding working bandwidth, gain and the like. The second coupling branch 1012 is provided to adjust the radiation effect of the second radiation arm 102 at the edge of the antenna array 2 along the second direction, so that the second radiation arm 102 at the edge and the second radiation arm 102 with the middle coupled by the toe have the same or similar radiation effect, and the second radiation arm 102 at the edge also has the same or similar operation bandwidth, gain, efficiency, and the like.

In one embodiment, the antenna module 1 is a tightly coupled dual polarized dipole antenna module supporting a frequency range of 20-45 GHz, and has a center operating frequency of 30GHz. The total thickness of the antenna module 1 is 0.156 times the wavelength corresponding to the highest operating frequency. The radiating arm of the antenna module 1 adopts a plate material with a relative dielectric constant epsilon=3.4, a tangent loss angle tan delta=0.004 and a thickness H=1.077 mm.

Fig. 23 is a schematic diagram of a standing-wave ratio simulation result of the first polarization (linear polarization in the first direction) of the antenna module 1. In fig. 23, the horizontal axis represents frequency in GHz; the vertical axis represents the Voltage Standing Wave Ratio (VSWR), also called standing wave ratio, or standing wave coefficient, of the antenna module 1. As can be seen from the figure, the frequency band range of the standing wave ratio of the first polarization of the antenna module 1 is smaller than 3 and comprises 16.78 GHz-42.81 GHz, and the antenna module 1 covers 24.25 GHz-29.5 GHz and 37 GHz-42.5 GHz of a 5G millimeter wave working frequency band. The standing wave ratio is an important index for measuring the feed efficiency of the antenna module 1; the smaller the standing wave ratio, the less reflection, the better the matching, and the smaller the standing wave ratio is, the smaller the standard is. The standing-wave ratio of the antenna module 1 provided by the embodiment of the application is controlled to be a lower value, and the feeding effect of the pair of first radiation arms 101 is good.

Fig. 24 is a schematic diagram of a standing-wave ratio simulation result of the second polarization (linear polarization in the second direction) of the antenna module 1. In fig. 24, the horizontal axis represents frequency in GHz; the vertical axis represents the standing wave ratio of the antenna module 1. As can be seen from the figure, the frequency band range of the standing wave ratio of the second polarization of the antenna module 1 is smaller than 3 and comprises 20.28 GHz-31.06 GHz, and the antenna module 1 covers 24.25 GHz-29.5 GHz and 37 GHz-42.5 GHz of a 5G millimeter wave working frequency band. The standing wave ratio of the antenna module 1 is controlled at a lower value, and the feeding effect of the pair of second radiating arms 102 is better.

Fig. 25 is a gain pattern of the E-plane and the H-plane of the antenna module 1 at the first polarization low frequency point 24.25 GHz. As can be seen from the figure, the gain pattern of the E-plane and the gain pattern of the H-plane of the antenna module 1 have better consistency, the gain pattern is not distorted, and the antenna module 110 has stable wide radiation beam characteristics in the broadband of the first polarization.

Fig. 26 is a gain pattern of the antenna module 1 at the second polarized low frequency point 24.25GHz on the E-plane and the H-plane. As can be seen from the figure, the gain pattern of the E-plane and the gain pattern of the H-plane of the antenna module 1 have better consistency, the gain pattern is not distorted, and the antenna module 110 has stable wide radiation beam characteristics in the broadband of the second polarization.

Fig. 27 is a gain pattern of the antenna module 1 at 42.5GHz of the first polarized high frequency point for the E-plane and the H-plane. As can be seen from the figure, the gain pattern of the E-plane and the gain pattern of the H-plane of the antenna module 1 have better consistency, the gain pattern is not distorted, and the antenna module 110 has stable wide radiation beam characteristics in the broadband of the first polarization.

Fig. 28 is a gain pattern of the antenna module 1 at the second polarized high frequency point 29.5GHz on the E-plane and the H-plane. As can be seen from the figure, the gain pattern of the E-plane and the gain pattern of the H-plane of the antenna module 1 have better consistency, the gain pattern is not distorted, and the antenna module 110 has stable wide radiation beam characteristics in the broadband of the second polarization.

Fig. 29 is a maximum radiation pattern of the first polarization as a function of frequency for a scan angle of 0 ° for the antenna array 2. In the figure, the horizontal axis represents frequency in GHz, the vertical axis represents gain value in dB. From the figure, it can be seen that the gain of the antenna array 2 can be greater than 8.56dB in the 5G millimeter wave operating frequency band, thereby obtaining that the operating state of the antenna array in the first polarization is good.

Fig. 30 is a maximum radiation pattern of the second polarization as a function of frequency for a scan angle of 0 ° for the antenna array 2. In the figure, the horizontal axis represents frequency in GHz, the vertical axis represents gain value in dB. From the figure, it can be seen that the gain of the antenna array 2 can be greater than 5.75dB in the 5G millimeter wave operating frequency band, thereby obtaining that the operating state of the antenna array in the second polarization is good.

Fig. 31 is a maximum radiation pattern of the first polarization of the antenna array 2 as a function of angle when the scan angle is 0 ° at the low frequency point 24.25 GHz. In the figure, the abscissa is the azimuth; the ordinate is the gain value in dB. It can be seen from the figure that the achievable gain is 8.56dB at an azimuth angle of 0 deg., and the antenna array 2 has stable broadband radiation beam characteristics over a wide frequency band.

Fig. 32 is a maximum radiation pattern of the second polarization of the antenna array 2 with an angle change when the scan angle is 0 ° at the low frequency point 24.25 GHz. In the figure, the abscissa is the azimuth; the ordinate is the gain value in dB. It can be seen from the figure that the achievable gain is 5.75dB at an azimuth angle of 0 deg., and the antenna array 2 has stable broadband radiation beam characteristics over a wide frequency band.

Fig. 33 is a maximum radiation pattern of the first polarization of the antenna array 2 as a function of angle when the scan angle is 60 ° at the low frequency point 24.25 GHz. In the figure, the abscissa is the azimuth; the ordinate is the gain value in dB. It can be seen from the figure that the achievable gain is 4.64dB at an azimuth angle of 0 deg., and the antenna array 2 has stable broadband radiation beam characteristics over a wide frequency band.

Fig. 34 is a maximum radiation pattern of the second polarization of the antenna array 2 with an angle change when the scan angle is 60 ° at the low frequency point 24.25 GHz. In the figure, the abscissa is the azimuth; the ordinate is the gain value in dB. It can be seen from the figure that the achievable gain is 5.91dB at an azimuth angle of 0 deg., and the antenna array 2 has stable broadband radiation beam characteristics over a wide frequency band.

Fig. 35 is a maximum radiation pattern of the first polarization of the antenna array 2 with an angle change when the scan angle is 0 ° at the high frequency point 42.5 GHz. In the figure, the abscissa is the azimuth; the ordinate is the gain value in dB. It can be seen from the figure that the achievable gain is 10.55dB at an azimuth angle of 0 deg., and the antenna array 2 has stable broadband radiation beam characteristics over a wide frequency band.

Fig. 36 is a maximum radiation pattern of the second polarization of the antenna array 2 with an angle change when the scan angle is 0 ° at the high frequency point 29.5 GHz. In the figure, the abscissa is the azimuth; the ordinate is the gain value in dB. It can be seen from the figure that the achievable gain is 8.95dB at an azimuth angle of 0 deg., and the antenna array 2 has stable broadband radiation beam characteristics over a wide frequency band.

Fig. 37 is a maximum radiation pattern of the first polarization of the antenna array 2 as a function of angle when the scan angle is 60 ° at the high frequency point 42.5 GHz. In the figure, the abscissa is the azimuth; the ordinate is the gain value in dB. It can be seen from the figure that the achievable gain is 8.54dB at an azimuth angle of 0 deg., and the antenna array 2 has stable broadband radiation beam characteristics over a wide frequency band.

Fig. 38 is a maximum radiation pattern of the second polarization of the antenna array 2 with an angle change when the scan angle is 60 ° at the high frequency point 29.5 GHz. In the figure, the abscissa is the azimuth; the ordinate is the gain value in dB. It can be seen from the figure that the achievable gain is 5.54dB at an azimuth angle of 0 deg., and the antenna array 2 has stable broadband radiation beam characteristics over a wide frequency band.

The features mentioned in the description, in the claims and in the drawings may be combined with one another at will as far as they are relevant within the scope of the present application. The advantages and features described for the antenna module 1 apply in a corresponding manner to the antenna array 2 and the electronic device 100. While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present application, and that variations, modifications, alternatives and alterations of the above embodiments may be made by those skilled in the art within the scope of the present application, which are also to be regarded as being within the scope of the protection of the present application.

Claims

1. An antenna module, comprising:

The power supply unit comprises a first power supply part and a second power supply part which are arranged at intervals, wherein the first power supply part comprises a transmission part, a first power supply part and a second power supply part which are connected in sequence, the transmission part is used for being electrically connected with a radio frequency signal source, the first power supply part is arranged opposite to and coupled with one first radiation arm, the second power supply part is arranged opposite to and coupled with the other first radiation arm, the second power supply part comprises a third power supply part, a first connection part and a fourth power supply part which are connected in sequence, one end of the third power supply part is electrically connected with one second radiation arm, the other end of the third power supply part is used for being electrically connected with the radio frequency signal source, and one end of the fourth power supply part is electrically connected with the other second radiation arm; the first connection part is used for transmitting radio frequency current between the third feeding part and the fourth feeding part and is used for adjusting a phase difference between the radio frequency current of the third feeding part and the radio frequency current of the fourth feeding part, wherein the radio frequency signal source is used for generating radio frequency current.

2. The antenna module of claim 1, wherein the first feeding member further comprises a second connection portion, one end of the second connection portion is electrically connected to the first feeding portion, the other end of the second connection portion is electrically connected to the second feeding portion, and the second connection portion is used for transmitting radio frequency current between the first feeding portion and the second feeding portion and for adjusting a phase difference between radio frequency current of the first feeding portion and radio frequency current of the second feeding portion.

3. The antenna module of claim 1, wherein the first direction is orthogonal to the second direction.

4. The antenna module of claim 1, further comprising a pair of first coupling patches disposed opposite and coupled to the pair of first radiating arms, respectively, and a pair of second coupling patches disposed opposite and coupled to the pair of second radiating arms, respectively.

5. The antenna module of claim 1, wherein the first connection portion includes a first sub-connection portion, a second sub-connection portion, and a third sub-connection portion that are sequentially connected, wherein an end of the first sub-connection portion that is away from the second sub-connection portion is electrically connected to the third feeding portion, and an end of the third sub-connection portion that is away from the second sub-connection portion is electrically connected to the fourth feeding portion, and wherein the first sub-connection portion, the second sub-connection portion, and the third sub-connection portion are coplanar.

6. The antenna module of claim 5, wherein at least a portion of the first sub-connection extends in the first direction, the second sub-connection extends in the second direction, and at least a portion of the third sub-connection extends in the first direction.

7. The antenna module of claim 5, wherein the orthographic projection of the transmission portion on the plane of the pair of first radiating arms is located in a region between the orthographic projection of the third feeding portion on the plane of the pair of first radiating arms, the orthographic projection of the fourth feeding portion on the plane of the pair of first radiating arms, and the orthographic projection of the first connection portion on the plane of the pair of first radiating arms.

8. The antenna module of claim 2, wherein the second connection portion, the first feed portion, and the second feed portion are coplanar, the first feed portion and the second feed portion being disposed opposite in the first direction, the second connection portion extending in the first direction.

9. The antenna module of any one of claims 1 to 8, further comprising a ground member located on a side of the feeding unit away from the radiating unit, the ground member covering the pair of first radiating arms and the pair of second radiating arms, one end of the transmission portion away from the first feeding portion penetrating the ground member, one end of the third feeding portion away from the second radiating arm penetrating the ground member, one end of the fourth feeding portion away from the second radiating arm being spaced from the ground member.

10. An antenna array, characterized by comprising a plurality of antenna modules according to any one of claims 1 to 9, wherein the plurality of antenna modules are arranged in an array along the first direction, and first radiating arms of two adjacent antenna modules are coupled; and/or the plurality of antenna modules are arranged in an array along the second direction, and the second radiation arms of the two adjacent antenna modules are coupled.

11. The antenna array of claim 10, wherein when the plurality of antenna modules are arranged in an array along the first direction, first radiating arms of two adjacent antenna modules are coupled in an interdigital manner; when the plurality of antenna modules are arranged in an array along the second direction, the second radiation arms of the two adjacent antenna modules are in toe-crossing coupling.

12. The antenna array of claim 11, wherein when the plurality of antenna modules are arranged in an array along the first direction, an edge of a first radiating arm of one of two adjacent antenna modules forms one or more first notches and one or more first extensions, an edge of a first radiating arm of the other antenna module forms one or more second notches and one or more second extensions, the first extensions at least partially extend into the second notches, and the second extensions at least partially extend into the first notches; when the plurality of antenna modules are arranged in an array along the second direction, one or more third gaps and one or more third extending portions are formed at the edge of the second radiating arm of one of the two adjacent antenna modules, one or more fourth gaps and one or more fourth extending portions are formed at the edge of the second radiating arm of the other antenna module, the third extending portions at least partially extend into the fourth gaps, and the fourth extending portions at least partially extend into the third gaps.

13. The antenna array of claim 10, wherein at least one of the pair of first radiating arms is provided with a recess.

14. The antenna array of claim 10, further comprising a pair of first coupling stubs disposed opposite in a first direction and coupled with respective first radiating arms of an edge of the antenna array along the first direction and/or a pair of second coupling stubs disposed opposite in the second direction and coupled with respective second radiating arms of an edge of the antenna array along the second direction.

15. An electronic device comprising a device body, an antenna module according to any one of claims 1 to 9 or an antenna array according to any one of claims 10 to 14, the device body being configured to carry the antenna module or the antenna array.