CN115882201A

CN115882201A - Antenna assembly and electronic equipment

Info

Publication number: CN115882201A
Application number: CN202111132534.6A
Authority: CN
Inventors: 刘池
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2023-03-31
Also published as: WO2023045630A1

Abstract

The application provides an antenna assembly and an electronic device. The antenna assembly comprises a first radiator, a matching circuit and a first feed system. The first radiator comprises a first sub-radiator and a main radiator. A first coupling gap is formed between the main radiator and the sub radiator. The main radiator is provided with a first coupling end, a free end, a first feed point and a matching point. The matching point is located between the first feed point and the free end. The sub radiator has a ground terminal and a second coupling terminal. A first coupling gap is formed between the second coupling end and the first coupling end, and the grounding end is grounded. One end of the matching circuit is electrically connected with the matching point, and the other end of the matching circuit is grounded. The first feeding system is electrically connected to the first feeding point. The first feed system is used for exciting the first radiator to at least receive and transmit at least one of a Wi-Fi frequency band, an MB frequency band, an HB frequency band, an N78 frequency band and an N79 frequency band. The application provides an antenna assembly and an electronic device supporting multiple frequency bands.

Description

Antenna assembly and electronic equipment

Technical Field

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

Background

With the development of communication technology, the popularity of electronic devices with communication functions is higher and higher, and the requirement for internet speed is higher and higher, and with the development of light weight, thinness and miniaturization of electronic devices, the space reserved for antenna components in the electronic devices is smaller and smaller. Therefore, how to increase the frequency band supported by the antenna assembly becomes a technical problem to be solved.

Disclosure of Invention

The application provides an antenna assembly and an electronic device supporting multiple frequency bands.

In a first aspect, an embodiment of the present application provides an antenna assembly, where the first antenna assembly includes:

the first radiator comprises a main radiator and a sub radiator, and a first coupling gap is formed between the main radiator and the sub radiator; the main radiator is provided with a first coupling end, a free end, a first feed point and a matching point, the first feed point and the matching point are located between the first coupling end and the free end, the matching point is located between the first feed point and the free end, the sub-radiator is provided with a grounding end and a second coupling end, a first coupling gap is formed between the second coupling end and the first coupling end, and the grounding end is grounded;

one end of the matching circuit is electrically connected with the matching point, and the other end of the matching circuit is grounded; and

the first feed system is electrically connected to the first feed point and used for exciting the first radiator to at least receive and transmit at least one of a Wi-Fi frequency band, an MB frequency band, an HB frequency band, an N78 frequency band and an N79 frequency band, wherein the MB frequency band at least resonates between the matching point and the first coupling end, and the HB frequency band at least resonates at the sub-radiator; the Wi-Fi band resonates at the sub radiator or at the sub radiator and the main radiator.

The antenna assembly provided by the embodiment of the application, the Wi-Fi frequency band, the MB frequency band and the HB frequency band fed by the first feed system are fed into the first radiator, the fed MB frequency band is designed to resonate in the main radiator, the fed HB frequency band resonates in the sub radiator, and the fed Wi-Fi frequency band resonates in the sub radiator or in the sub radiator and the main radiator, so that the antenna assembly supports the Wi-Fi frequency band, the MB frequency band and the HB frequency band through the first feed system, the main radiator and the sub radiator, wherein the MB frequency band and the HB frequency band are different frequency bands of mobile communication signals, the antenna assembly can support multiple frequency bands, and the space occupied by the antenna assembly in the electronic device is relatively small.

In a second aspect, an embodiment of the present application provides an antenna assembly, including a first antenna module, where the first antenna module includes:

the first radiator comprises a main radiator body and a support radiator body, the main radiator body is provided with a first coupling end, a free end, a first feeding point and a matching point, the first feeding point and the matching point are located between the first coupling end and the free end, and the matching point is located between the first feeding point and the free end;

the first feed system is electrically connected to the first feed point, and is used for exciting the first radiator to at least receive and transmit at least one of an MB frequency band, an HB frequency band, an N78 frequency band, an N79 frequency band and a Wi-Fi frequency band, wherein the MB frequency band at least resonates between the matching point and the first coupling end;

the support radiator is electrically connected to the first feed system, and the support radiator is configured to support the N78 frequency band, or support the N78 frequency band and the N79 frequency band, or support the N78 frequency band and the Wi-Fi frequency band.

The antenna assembly that this application embodiment provided feeds in first irradiator through setting up MB frequency channel, HB frequency channel, N78 frequency channel, N79 frequency channel, wi-Fi frequency channel that first feed system fed in, the design resonates the MB frequency channel of feeding in between matching point to first coupling end, and resonates N78 frequency channel etc. of feeding in the support irradiator, so, the antenna assembly realizes supporting frequency channels such as MB frequency channel, N78 frequency channel through first feed system, main radiator, support irradiator, the antenna assembly can support a plurality of frequency channels, still make the space that the antenna assembly occupies in electronic equipment relatively less.

In a third aspect, an embodiment of the present application provides an electronic device, which includes the antenna assembly.

Drawings

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

Fig. 1 is a perspective view of an electronic device provided in an embodiment of the present application;

FIG. 2 is an exploded view of one of the electronic devices shown in FIG. 1;

fig. 3 is an equivalent circuit schematic diagram of a first antenna module according to an embodiment of the present application;

fig. 4 is an equivalent circuit diagram of a second antenna module according to an embodiment of the present disclosure;

fig. 5 is an equivalent circuit diagram of a third antenna module according to an embodiment of the present disclosure;

fig. 6 is an equivalent circuit diagram of a fourth antenna module according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of resonant currents in the HB band and the Wi-Fi2.4G band supported by the first antenna module shown in FIG. 6;

fig. 8 is a schematic diagram of resonant currents of MB frequency bands supported by the first antenna module shown in fig. 6;

fig. 9 is a schematic diagram of an internal structure of a back side of an electronic device according to an embodiment of the present application;

fig. 10 is a schematic diagram of resonant currents of the first supported N78 band of the first antenna module shown in fig. 6;

fig. 11 is a diagram illustrating resonant currents of the second supported N78 band of the first antenna module shown in fig. 6;

fig. 12 is a schematic diagram of a resonant current of a GPS-L5 frequency band supported by the first antenna module shown in fig. 6;

fig. 13 is a graph of efficiency of the frequency bands supported by the first antenna module shown in fig. 12;

fig. 14 is a schematic diagram of resonant currents of LB frequency bands supported by the first antenna module shown in fig. 6;

fig. 15 is a schematic layout diagram of an antenna assembly on the back side of an electronic device according to an embodiment of the present application;

fig. 16 is a S11 graph of frequency bands supported by the first antenna module shown in fig. 14;

fig. 17 is a graph of efficiency for the frequency bands supported by the first antenna module shown in fig. 14;

FIG. 18 is a detailed circuit schematic of the first matching system shown in FIG. 6;

fig. 19 is a schematic diagram of a third sub-matching circuit in the first antenna module shown in fig. 18;

fig. 20 is a circuit diagram of a first matching circuit in the first antenna module shown in fig. 18;

fig. 21 is a circuit diagram of a second matching circuit in the first antenna module shown in fig. 18;

fig. 22 is a circuit diagram of a third matching circuit in the first antenna module shown in fig. 18;

fig. 23 is a schematic internal structural diagram of a first antenna module on the back side of an electronic device according to an embodiment of the present disclosure;

fig. 24 is a schematic structural diagram of an antenna assembly on the back side of an electronic device according to an embodiment of the present application;

fig. 25 is a schematic structural diagram of an external appearance surface of a back surface of an electronic device according to an embodiment of the present application.

The reference numbers illustrate:

an electronic device 1000; an antenna assembly 100; a display screen 200; a housing 300; a bezel 310; a rear cover 320; a middle plate 330; a first radiator 10; a matching circuit 20; a first feeding system 30; a sub radiator 11; a main radiator 12; a first coupling slot 13; a first ground terminal 111; a second coupling end 112; a first coupling end 121; a second ground terminal 124; a first feeding point A; matching point B; a ground reference system GND; a main radiator 12; a second sub radiator 15; a second coupling slot 16; a free end 122; a third coupling end 123; a support radiator 17; a second feeding point D; a second feeding system 40; a first feed 31; a first matching system 32; the first sub-matching circuit 321; a second sub-matching circuit 322; a first feed 31; a third sub-matching circuit 323; a first capacitor C1; a first inductance L1; a second feed 41; a second matching system 42; a switch tuning device 50; a single-pole double-throw switch 51; first lumped element 52; second lumped element 53; a first side frame 311; a second side frame 312; a third side frame 313; the fourth side frame 314; the rear camera module 400.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. Furthermore, reference in the specification to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation can be included in at least one embodiment of the specification. 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. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device 1000 according to an embodiment of the present disclosure. The electronic device 1000 includes an antenna assembly 100. The antenna assembly 100 is used for transceiving electromagnetic wave signals to realize a communication function of the electronic device 1000. The position of the antenna assembly 100 on the electronic device 1000 is not specifically limited in the present application, and fig. 1 is only an example. The electronic device 1000 further includes a display 200 and a housing 300 that are connected to each other in a covering manner. The antenna assembly 100 may be disposed inside the housing 300 of the electronic device 1000, or partially integrated with the housing 300, or partially disposed outside the housing 300. The radiator of the antenna assembly 100 of fig. 1 is integrated with the housing 300. Of course, the antenna assembly 100 may also be disposed on a retractable component of the electronic device 1000, in other words, at least a portion of the antenna assembly 100 can also be extended out of the electronic device 1000 along with the retractable component of the electronic device 1000, and retracted into the electronic device 1000 along with the retractable component; alternatively, the overall length of the antenna assembly 100 is extended as the retractable components of the electronic device 1000 are extended.

The electronic device 1000 includes, but is not limited to, a mobile phone, a telephone, a television, a tablet computer, a camera, a personal computer, a notebook computer, an in-vehicle device, an earphone, a watch, a wearable device, a base station, an in-vehicle radar, a Customer Premise Equipment (CPE), and other devices capable of transceiving electromagnetic wave signals. In the present application, the electronic device 1000 is taken as a mobile phone as an example, and other devices may refer to the detailed description in the present application.

For convenience of description, referring to a view angle of the electronic device 1000 in fig. 1, a width direction of the electronic device 1000 is defined as an X-axis direction, a length direction of the electronic device 1000 is defined as a Y-axis direction, and a thickness direction of the electronic device 1000 is defined as a Z-axis direction. The X-axis direction, the Y-axis direction and the Z-axis direction are vertical to each other. Wherein the direction indicated by the arrow is the forward direction.

Referring to fig. 2, the housing 300 includes a frame 310 and a rear cover 320. The middle plate 330 is formed in the frame 310 by injection molding, and a plurality of mounting grooves for mounting various electronic devices are formed in the middle plate 330. The middle plate 330 and the bezel 310 together become the middle plate 330 of the electronic device 1000. After the display screen 200, the middle frame 340 and the rear cover 320 are closed, an accommodating space is formed at both sides of the middle frame 340. One side (e.g., the rear side) of the bezel 310 is attached around the periphery of the rear cover 320, and the other side (e.g., the front side) of the bezel 310 is attached around the periphery of the display screen 200. The electronic device 1000 further includes a circuit board 500, a battery 600, a camera module, a microphone, a receiver, a speaker, a face recognition module, a fingerprint recognition module, and other devices that can implement the basic functions of the mobile phone, which are disposed in the accommodating space, and are not described in detail in this embodiment. It is to be understood that the above description of the electronic device 1000 is merely illustrative of one environment in which the antenna assembly 100 may be used, and that the specific structure of the electronic device 1000 should not be construed as limiting the antenna assembly 100 provided herein.

The antenna assembly 100 provided in the present application is specifically described below with reference to the accompanying drawings, and of course, the antenna assembly 100 provided in the present application includes, but is not limited to, the following embodiments.

Referring to fig. 3, the antenna assembly 100 includes a first antenna module 100a. The specific structure of the first antenna module 100a includes, but is not limited to, the following embodiments.

In the first antenna module 100a, the first antenna module 100a at least includes a first radiator 10, a matching circuit 20, and a first feeding system 30.

Referring to fig. 3, the first radiator 10 includes a sub-radiator (referred to as a first sub-radiator 11 in the present application) and a main radiator 12. A first coupling slot 13 is formed between the first sub radiator 11 and the main radiator 12. The first sub radiator 11 and the main radiator 12 are capacitively coupled through the first coupling slot 13. The term "capacitive coupling" refers to an electric field generated between the first sub-radiator 11 and the main radiator 12, and an electric signal on the main radiator 12 can be transmitted to the first sub-radiator 11 through the electric field, so that the first sub-radiator 11 and the main radiator 12 can be conducted through the electric signal even in a state of no direct contact or no direct contact.

Referring to fig. 3, the main radiator 12 has a first coupling end 121 and a free end 122. When the main radiator 12 is disposed on the bezel 310 of the electronic device 1000, the free end 122 is used to form a coupling slot (referred to as a second coupling slot 16 in this application) with other portions of the bezel 310. The main radiator 12 shown in fig. 3 is only an example, and the shape of the main radiator 12 provided in the present application is not limited. The first coupling end 121 and the free end 122 are two ends of the main radiator 12, respectively. Alternatively, the first sub-radiator 11 and the main radiator 12 may be arranged in a straight line or substantially in a straight line (i.e., with a small tolerance in the design process). Of course, in other embodiments, the first sub radiator 11 and the main radiator 12 may be offset in the extending direction to form an avoiding space.

Referring to fig. 3, the first sub radiator 11 has a ground terminal (referred to as a first ground terminal 111 in the present application) and a second coupling terminal 112. The first ground terminal 111 and the second coupling terminal 112 shown in fig. 3 are opposite ends of the first sub radiator 11 in a straight line shape, which is merely an example and does not limit the shape of the first sub radiator 11 provided in the present application. In other embodiments, the first sub radiator 11 may also be bent, the first ground 111 and the second coupling end 112 may not be opposite to each other along a straight line, but the first ground 111 and the second coupling end 112 are two ends of the first sub radiator 11, respectively.

Referring to fig. 3, the first coupling gap 13 is formed between the second coupling end 112 and the first coupling end 121. The second coupling end 112 is opposite to and spaced apart from the first coupling end 121. The first coupling slot 13 is a broken slot between the first sub radiator 11 and the main radiator 12, for example, the width of the first coupling slot 13 may be 0.5 to 2mm, but is not limited thereto. The first sub radiator 11 and the main radiator 12 can be regarded as two parts formed by the first radiator 10 being separated by the first coupling slot 13.

Referring to fig. 3, the main radiator 12 further has a first feeding point a and a matching point B between the first coupling end 121 and the free end 122. The matching point B is located between the first feeding point a and the free end 122.

It is understood that the shape and configuration of the first sub-radiator 11 and the main radiator 12 are not specifically limited, and the shapes of the first sub-radiator 11 and the main radiator 12 include, but are not limited to, a strip, a sheet, a rod, a coating, a film, and the like. When the first sub radiator 11 and the main radiator 12 are both in the shape of a strip, the extension tracks of the first sub radiator 11 and the main radiator 12 are not limited in this application, so that the first sub radiator 11 and the main radiator 12 can be extended in the form of a straight line, a curved line, a multi-section bend, and the like. The first radiator 10 may be a line with uniform width on the extension track, or may be a strip with gradually changing width and having a widened area with different widths.

Optionally, the first radiator 10 is made of a conductive material, and the specific material includes, but is not limited to, metals such as copper, gold, and silver, or an alloy formed by copper, gold, and silver and other materials; graphene or a conductive material formed by combining graphene with another material; oxide conductive materials such as indium tin oxide; carbon nanotubes and polymers form hybrid materials, and the like.

Referring to fig. 3, the first ground 111 is grounded. It is understood that "grounded" in this application refers to an electrical connection to ground or to ground system GND.

Specifically, the first ground 111 is electrically connected to the ground reference system GND, and the electrical connection manner includes but is not limited to direct soldering, or indirect electrical connection via a coaxial line, a microstrip line, a conductive elastic sheet, a conductive adhesive, and the like. The ground reference system GND may be a single integral structure or a plurality of structures which are independent of each other but electrically connected to each other.

The GND reference system provided by the present application may be provided in the antenna assembly 100, or alternatively outside the antenna assembly 100 (e.g. in the electronic device 1000, or in an electronic component of the electronic device 1000), and the antenna assembly 100 itself has the GND reference system. Specific forms of the ground reference system GND include, but are not limited to, a metal conductive plate, a metal conductive layer formed inside a flexible circuit board, a hard circuit board, and the like. When the antenna assembly 100 is provided in the electronic device 1000, the ground reference system GND of the antenna assembly 100 is electrically connected to the ground reference of the electronic device 1000. Still alternatively, the antenna assembly 100 itself does not have a ground reference system GND, and the first ground 111 of the antenna assembly 100 is electrically connected to a ground reference of the electronic device 1000 or a ground reference of an electronic device in the electronic device 1000 directly or indirectly through a conductive member. In this embodiment, the antenna assembly 100 is disposed in the electronic device 1000, the electronic device 1000 is a mobile phone, and a reference ground of the electronic device 1000 is the magnesium aluminum metal alloy plate of the middle plate 330 of the mobile phone. The first ground 111 of the antenna assembly 100 is electrically connected to a magnesium aluminum metal alloy plate. The other structures of the antenna assembly 100 that follow are electrically connected to the ground GND, and reference may be made to any one of the above embodiments that are electrically connected to the ground GND.

One end of the matching circuit 20 is electrically connected to the matching point B, and the other end of the matching circuit 20 is grounded. The matching circuit 20 may be integrated with the ground reference system GND, or may be grounded through a 0 ohm circuit, through a capacitor, through an inductor, through a combination of a capacitor and an inductor, through a switching tuning device, or the like.

Referring to fig. 3, one end of the first feeding system 30 is electrically connected to the first feeding point a of the main radiator 12. The first feeding system 30 feeds the rf signal into the main radiator 12 through the first feeding point a, and since the main radiator 12 is capacitively coupled to the first sub-radiator 11, the rf signal of the main radiator 12 can excite the first sub-radiator 11 to generate a current signal.

The first feeding system 30 is configured to excite the first radiator 10 to at least receive and transmit electromagnetic wave signals in at least one of a Wi-Fi frequency band, an MB frequency band, an HB frequency band, an N78 frequency band, and an N79 frequency band. The MB frequency band and the HB frequency band are different frequency bands of mobile communication signals. The MB band resonates at least between the matching point B and the first coupling end 121. The HB frequency band resonates at least in the first sub radiator 11. The Wi-Fi band resonates at the first sub radiator 11 or resonates at the first sub radiator 11 and the main radiator 12.

Optionally, the MB frequency band may be all or some part of the 1710MHz to 2170MHz frequency band. For example, the MB frequency band at least includes N1 frequency band, N3 frequency band, etc., the N1 frequency band ranges from 1920MHz to 1970MHz and 2110MHz to 2170MHz, and the N3 frequency band ranges from 1710MHz to 1785MHz and 1805MHz to 1880MHz. The HB frequency band is the whole frequency band or some part of frequency band of 2300MHz-2690 MHz. For example, the HB band at least includes N41, and the N41 band ranges from 2496MHz to 2690MHz. The Wi-Fi frequency band comprises at least one of Wi-Fi2.4G, wi-Fi5G, wi-Fi 6E and the like.

The antenna assembly 100 and the electronic device 1000 provided in the embodiment of the present application, by setting the Wi-Fi band, the MB band, and the HB band fed by the first feeding system 30 to feed into the first radiator 10, the design is to resonate the fed MB band at the matching point B of the main radiator 12 to the first coupling end 121, resonate the fed HB band at the first sub-radiator 11, and resonate the fed Wi-Fi band at the first sub-radiator 11 or at the first sub-radiator 11 and the main radiator 12, so that the antenna assembly 100 supports the Wi-Fi band, the MB band, and the HB band through the first feeding system 30, the main radiator 12, and the first sub-radiator 11, wherein the MB band and the HB band are different bands of mobile communication signals, the antenna assembly 100 increases the supported bands, and the space occupied by the antenna assembly 100 in the electronic device 1000 is relatively small.

For the electronic device 1000, since the Wi-Fi band, the MB band, and the HB band are integrated in one antenna assembly 100 for transmission and reception, from the perspective of the feed system, only one feed system needs to be set, which reduces the number of feed systems to be set and further reduces the space occupied by the circuit board 500 carrying the feed system compared with the case where different feed systems are respectively set for the Wi-Fi band and the mobile communication band.

In the general technology, a circuit board is not provided in some areas of the electronic device 1000, for example, an area where the battery 600 is provided, which is inconvenient for providing the feeding system because the circuit board is not provided, and thus has a limitation on the arrangement of the antenna assembly 100, thus resulting in a further limitation on the area where the antenna assembly 100 can be provided. In the antenna assembly 100 provided by the present application, a plurality of frequency bands are fed by a feeding system, the feeding system may be disposed on the circuit board 500, and the first radiator 10 may be disposed in a form of the main radiator 12+ the parasitic radiator (i.e., the first sub-radiator 11), wherein a portion of the main radiator 12 is disposed corresponding to the feeding system on the circuit board 500, and the first sub-radiator 11 does not need to be disposed corresponding to the circuit board 500, so that a space where the circuit board 500 is not disposed may be utilized, thereby improving a space utilization rate of the antenna assembly 100 in the electronic device 1000.

The present application takes the electronic device 1000 as a mobile phone as an example for illustration. With the popularization of mobile communication network signals and Wi-Fi signals, more and more people like to surf the internet under the state that the mobile communication network signals and the Wi-Fi signals are fully opened. The electronic device 1000 may automatically connect to Wi-Fi signals when having a Wi-Fi network and the electronic device 1000 may automatically switch to mobile communication network signals when not having a Wi-Fi network. When a user holds the mobile phone and uses the mobile phone (for example, playing games on a landscape screen and watching videos on a landscape screen), the antenna on the mobile phone is often shielded, so that the problems that the signal of the antenna is poor and the use experience of the user is poor are caused.

The antenna assembly 100 provided by the present application is configured to respectively locate the MB frequency band and the HB frequency band on two radiators (the main radiator 12 and the first sub-radiator 11), and when the first sub-radiator 11 and the main radiator 12 are not blocked, the antenna assembly 100 can support the MB frequency band, the HB frequency band and the Wi-Fi frequency band. When the main radiator 12 is shielded and the first sub-radiator 11 is not shielded, the antenna assembly 100 can still support the Wi-Fi frequency band and the HB frequency band in the mobile communication signal, and at this time, dual support of the Wi-Fi signal and the mobile communication signal can still be realized, so that the problem that only the Wi-Fi signal can be supported due to the fact that the main radiator 12 is shielded, and if the coverage of the Wi-Fi signal is not available, the signal of the electronic device 1000 is extremely poor and the use experience of a user is influenced does not occur. In other words, the antenna assembly 100 of the present application can increase the usage scenarios of the antenna assembly 100 for the dual support of Wi-Fi signals and mobile communication signals by respectively locating the MB frequency band and the HB frequency band in the two radiators, thereby improving the user experience of surfing the internet.

Optionally, referring to fig. 4, the first radiator 10 further includes a support radiator 17. The support radiator 17 is electrically connected to the first power feeding system 30. The support radiator is excited by the first feed system 30 to support the N78 frequency band, or support the N78 frequency band and the N79 frequency band, or support the N78 frequency band and the Wi-Fi frequency band.

The MB frequency band, the N78 frequency band, the N79 frequency band, and the Wi-Fi frequency band fed by the first feeding system 30 are fed into the first radiator 10, the fed MB frequency band is designed to resonate between the matching point B and the first coupling end 121, and the fed N78 frequency band is designed to resonate in the bracket radiator 17, so that the first antenna module 100a supports the MB frequency band, the N78 frequency band, and other frequency bands through the first feeding system 30, the main radiator 12, and the bracket radiator 17, the first antenna module 100a can support multiple frequency bands, and the space occupied by the first antenna module 100a in the electronic device 100 is relatively small.

Referring to fig. 5, in the second first antenna module 100a, the structure of the first antenna module 100a provided in this embodiment is substantially the same as that of the first antenna module 100a. The first antenna module 100a in the present embodiment also includes a first radiator 10, a matching circuit 20, and a first power supply system 30. The main difference is that the first radiator 10 in the present embodiment includes a main radiator 12 and a support radiator 17. The main radiator 12 in the present embodiment has the same structure as the main radiator 12 in the first antenna module 100a. Specifically, the main radiator 12 has a first coupling end 121, a free end 122, and a first feeding point a and a matching point B located between the first coupling end 121 and the free end 122. The matching point B is located between the first feeding point a and the free end 122.

The matching circuit 20 in the present embodiment has the same configuration as the matching circuit 20 in the first antenna module 100a. Specifically, one end of the matching circuit 20 is electrically connected to the matching point B, and the other end of the matching circuit 20 is grounded.

The first power feeding system 30 in the present embodiment has the same structure as the first power feeding system 30 in the first antenna module 100a. Specifically, the first feeding system 30 is electrically connected to the first feeding point a. The first feeding system 30 is configured to excite the first radiator 10 to at least receive and transmit at least one of an MB frequency band, an HB frequency band, an N78 frequency band, an N79 frequency band, and a Wi-Fi frequency band. The MB band resonates at least between the matching point B and the first coupling end 121.

The support radiator 17 in the present embodiment has the same structure as the support radiator 17 in the first antenna module 100a. Specifically, the support radiator 17 is electrically connected to the first power feeding system 30. The support radiator 17 is configured to support the N78 frequency band, or support the N78 frequency band and the N79 frequency band, or support the N78 frequency band and the Wi-Fi frequency band.

The MB frequency band, the N78 frequency band, the N79 frequency band, and the Wi-Fi frequency band fed in by the first feed system 30 are fed into the first radiator 10, the fed MB frequency band is designed to resonate between the matching point B and the first coupling end 121, and the fed N78 frequency band and the like are designed to resonate in the bracket radiator 17, so that the first antenna module 100a supports the MB frequency band, the N78 frequency band and the like through the first feed system 30, the main radiator 12, and the bracket radiator 17, the first antenna module 100a can support multiple frequency bands, and the space occupied by the first antenna module 100a in the electronic device 100 is relatively small.

Referring to fig. 4, the first radiator 10 further includes a sub-radiator (referred to as a first sub-radiator 11 in the present application). The first sub-radiator 11 in the present embodiment has the same structure as the first sub-radiator 11 in the first antenna module 100a. Specifically, the first sub radiator 11 has a ground terminal (referred to as a first ground terminal 111 in this application) and a second coupling terminal 112. Between the second coupling end 112 and the first coupling end 121 is the first coupling slit 13. The first ground 111 is grounded. The HB band resonates at least at the first sub radiator 11. The Wi-Fi band resonates at the first sub radiator 11 or resonates at the first sub radiator 11 and the main radiator 12.

By resonating the fed MB frequency band at the matching point B of the main radiator 12 to the first coupling end 121, resonating the fed HB frequency band at the first sub-radiator 11, and resonating the fed Wi-Fi frequency band at the first sub-radiator 11 or at the first sub-radiator 11 and the main radiator 12, the antenna assembly 100 supports the Wi-Fi frequency band, the MB frequency band, and the HB frequency band through the first feeding system 30, the main radiator 12, and the first sub-radiator 11, wherein the MB frequency band and the HB frequency band are different frequency bands of the mobile communication signal, the antenna assembly 100 increases the supported frequency band, and the space occupied by the antenna assembly 100 in the electronic device 1000 is relatively small.

The following description is made with reference to the first antenna module 100a shown in fig. 4 for example of frequency band support. Of course, the following embodiments may be incorporated into the first antenna module 100a shown in fig. 3 and the first antenna module 100a shown in fig. 5. Referring to fig. 6, taking the first antenna module 100a as an example of being mounted on the electronic device 1000, the first radiator 10 further includes a second sub-radiator 15. The main radiator 12 is located between the first sub-radiator 11 and the second sub-radiator 15. The second sub-radiator 15 has a third coupling end 123 and a second ground end 124, wherein a second coupling gap 16 is formed between the third coupling end 123 and the free end 122 of the main radiator 12. The main radiator 12 is coupled to the second sub-radiator 15 through a second coupling slot 16. The second coupling slot 16 is a broken slot between the main radiator 12 and the second sub-radiator 15, for example, the width of the second coupling slot 16 may be 0.5 to 2mm, but is not limited thereto. The main radiator 12 and the second sub-radiator 15 can be regarded as two parts formed by the main radiator 12 being separated by the second coupling slot 16.

Optionally, referring to fig. 7, the Wi-Fi bands include Wi-Fi2.4G bands. The working modes of the HB frequency band and the Wi-Fi2.4G frequency band include resonance between the second coupling end 112 and the first ground end 111. In other words, the current generated by the first feeding system 30 resonates at least between the second coupling end 112 and the first grounding end 111 to excite the resonant modes of the HB band and the Wi-Fi2.4G band.

The resonant mode is characterized by a high electromagnetic wave transceiving efficiency of the antenna assembly 100 at and around the center frequency of the supported frequency band. The center frequency and its vicinity form the frequency band supported or covered by the resonant mode.

Referring to fig. 7, currents corresponding to the resonant modes generated by the radio frequency signals in the HB band and the Wi-Fi2.4G band fed by the first feeding system 30 are mainly distributed between the second coupling end 112 and the first ground end 111. It can also be stated that the current density generated by the radio frequency signals in the HB band and the Wi-Fi2.4G band fed by the first feeding system 30 excited by the first radiator 10 is mainly distributed between the second coupling end 112 and the first ground end 111. It should be noted that, in the currents corresponding to the resonant mode generated by the first radiator 10, the radio frequency signals in the HB frequency band and the Wi-Fi2.4G frequency band fed by the first feed system 30 have a stronger current distributed between the second coupling end 112 and the first ground end 111, and it is not excluded that a small amount of current generated by the excitation of the radio frequency signals in the HB frequency band and the Wi-Fi2.4G frequency band fed by the first feed system 30 is distributed in the main radiator 12 due to the coupling effect of the first sub-radiator 11 and the main radiator 12. The present application does not limit the direction of the resonant current. As shown by the dotted arrows in fig. 4, the resonance current generated by the radio frequency signals in the HB band and the Wi-Fi2.4G band flows from the first coupling slot 13 to the first ground 111.

The HB frequency band is close to the Wi-Fi2.4G frequency band, and the effective electrical length of the first sub-radiator 11 is designed to simultaneously satisfy the requirement that the HB frequency band and the Wi-Fi2.4G frequency band resonate in the first sub-radiator 11, so that the first sub-radiator 11 can simultaneously support the HB frequency band and the Wi-Fi2.4G frequency band, and the utilization rate of the first sub-radiator 11 is improved. When the first sub-radiator 11 can simultaneously support the HB frequency band and the Wi-Fi2.4G frequency band, compared with the case where the HB frequency band and the Wi-Fi2.4G frequency band are respectively radiated by two different radiator branches (or two different antenna modules), the space occupied by the antenna supporting the HB frequency band and the Wi-Fi2.4G frequency band in the electronic device 1000 can be greatly reduced.

Further, the working modes of the HB frequency band and the Wi-Fi2.4G frequency band include a 1/4 wavelength mode resonating between the second coupling terminal 112 and the first ground terminal 111. In other words, the resonant modes generated by the radio frequency signals in the HB band and the Wi-Fi2.4G band fed by the first feeding system 30 are 1/4 wavelength modes in which the resonant current mainly works from the first ground 111 to the second coupling end 112.

From a viewpoint of easy understanding, the 1/4 wavelength mode can be understood as that the effective electrical length of the first ground 111 to the second coupling terminal 112 is about 1/4 times of the wavelength (wavelength in the medium) of the medium corresponding to the center frequency of the resonant mode, which is described as an explanation for easy understanding of terms, but cannot be taken as a limitation of the length of the first ground 111 to the second coupling terminal 112.

The effective electrical length of the first sub radiator 11 is designed so that the effective electrical length of the first sub radiator 11 corresponds to 1/4 of the medium wavelength of the HB frequency band. The term "corresponding" is understood to mean that the effective electrical length of the first sub-radiator 11 is about 1/4 of the dielectric wavelength of the HB band. Accordingly, the effective electrical length of the first sub-radiator 11 is about 1/4 of the medium wavelength of the Wi-Fi2.4G band. The 1/4 wavelength mode can also be called a ground state, and the ground state has higher antenna efficiency, so that the transceiving efficiency of the HB frequency band and the Wi-Fi2.4G frequency band is improved.

It should be noted that the effective electrical length of the first sub-radiator 11 described herein is about a certain dielectric wavelength of a certain frequency band, and the physical length of the first sub-radiator 11 is not limited to the dielectric wavelength of the frequency band. Since some tuning devices may be electrically connected to the first sub radiator 11 to tune the effective electrical length of the first sub radiator 11, for example, by setting an inductance and a capacitance to increase or decrease the effective electrical length of the first sub radiator 11.

It is understood that the signal type of the HB frequency band described in this application may be a 4G mobile communication signal, and may also be a 5G mobile communication signal. In other words, the first power feeding system 30 can load the 4G mobile communication signal and the 5G mobile communication signal at the same time, that is, the dual connectivity (LTE NR Double connection, endec) between the 4G radio access network and the 5G-NR is realized, and the 4G mobile communication signal or the 5G mobile communication signal can be loaded separately.

Alternatively, when the antenna assembly 100 is mounted on the electronic device 1000, the first sub-radiator 11 may be a conductive bezel antenna on the electronic device 1000, that is, the first sub-radiator 11 and the conductive bezel 310 of the electronic device 1000 are integrated into a whole. Optionally, the first sub-radiator 11 may be disposed at a middle position of a long side of the frame 310 of the electronic device 1000, so that when the user uses the electronic device 1000, especially when the user looks at a video on a landscape screen or plays games on a landscape screen, the user's hand is not easy to hold the middle position of the long side of the frame 310 of the electronic device 1000, and thus, the signals of the HB frequency band and the Wi-Fi2.4G frequency band are not blocked, so that the HB frequency band and the Wi-Fi2.4G frequency band received and transmitted by the antenna assembly 100 provide a good guarantee for the antenna signals when the user uses the electronic device 1000 on a landscape screen.

The operating modes of the MB band include a resonant mode resonating from the matching point B to the first coupling end 121 and a resonant mode resonating from the first coupling end 121 to the free end 122.

Referring to fig. 8, the currents corresponding to the resonant modes generated by the radio frequency signals of the MB frequency band fed by the first feeding system 30 are mainly distributed between the matching point B and the first coupling end 121, and between the first coupling end 121 and the free end 122. It can also be stated that the current density generated by the radio frequency signals of the MB frequency band fed by the first feeding system 30 excited on the first radiator 10 is mainly distributed between the matching point B and the first coupling end 121 and between the first coupling end 121 and the free end 122. It should be noted that, in the currents corresponding to the resonant mode generated by the first radiator 10, the stronger currents of the radio frequency signals in the MB frequency band fed by the first feed system 30 are distributed between the matching point B and the first coupling end 121 and between the first coupling end 121 and the free end 122, which does not exclude that a small amount of current generated by the excitation of the radio frequency signals in the MB frequency band fed by the first feed system 30 is distributed in the first sub-radiator 11 due to the coupling effect between the first sub-radiator 11 and the main radiator 12. The present application does not limit the direction of the resonant current. As shown by the dotted arrows in fig. 8, the resonant current generated by the radio frequency signal in the MB frequency band flows from the first coupling slot 13 to the matching point B, and then flows from the matching point B to the second coupling slot 16.

Specifically, the operating modes of the MB band include a 1/4 wavelength mode resonating from the matching point B to the first coupling end 121 and a 1/2 wavelength mode resonating from the first coupling end 121 to the free end 122. In other words, the resonant modes generated by the radio frequency signals of the MB band fed by the first feeding system 30 are the 1/4 wavelength mode in which the resonant current mainly works between the matching point B and the first coupling end 121 and the 1/2 wavelength mode between the first coupling end 121 and the free end 122.

Specifically, by designing the position of the matching point B such that the effective electrical length of the main radiator 12 between the matching point B and the first coupling end 121 is about 1/4 of the medium wavelength of the MB band, it is convenient for the current to excite the 1/4 wavelength mode of the MB band on the main radiator 12 between the matching point B and the first coupling end 121. In addition, the length of the main radiator 12 between the first coupling end 121 and the free end 122 is designed, so that the length of the main radiator 12 between the first coupling end 121 and the free end 122 is about 1/2 of the medium wavelength of the MB band, which facilitates the current to excite the 1/2 wavelength mode of the MB band on the main radiator 12 between the first coupling end 121 and the free end 122. Wherein, the current intensity corresponding to the 1/4 wavelength mode is greater than the current intensity corresponding to the 1/2 wavelength mode. The intensity of the resonant current flowing between the matching points B from the first coupling gap 13 is greater than the intensity of the current flowing between the second coupling gap 16 from the matching points B. In other words, 1/4 wavelength mode of the 1/4 wavelength mode and the 1/2 wavelength mode is dominant.

The effective electrical length of the main radiator 12 and the position of the matching point B are designed to make the main radiator 12 support the two resonance modes of the MB frequency band, so that the main radiator 12 supports the MB frequency band and the bandwidth of the MB frequency band is increased.

Alternatively, referring to fig. 6 and fig. 9 in combination, when the antenna assembly 100 is mounted on the electronic device 1000, the main radiator 12 may be a conductive frame 310 on the electronic device 1000, that is, the main radiator 12 and the conductive frame 310 of the electronic device 1000 are integrated into a whole. Alternatively, the main radiator 12 may be disposed at a middle upper portion or a middle lower portion of the long side of the bezel 310 of the electronic device 1000 (referring to fig. 9, the middle upper portion in fig. 9), and particularly, the main radiator 12 between the first matching point B and the first coupling end 121 is close to the first sub-radiator 11. When a user watches videos on a horizontal screen or plays games on the horizontal screen, the hand of the user is not easy to hold the main radiator 12 between the first matching point B and the first coupling end 121, so that the 1/4 wavelength mode of the MB frequency band strong radiation is not affected, and good guarantee is provided for antenna signals when the user holds the electronic device 1000 on the horizontal screen. The MB frequency band, the HB frequency band and the Wi-Fi2.4G frequency band enable a user to connect to both mobile communication signals and Wi-Fi signals when holding the electronic device 1000 on a horizontal screen, so that switching can be performed in a Wi-Fi covered scene or a Wi-Fi-free covered scene; in addition, the mobile communication signals can be connected to the MB frequency band and the HB frequency band, which have relatively large bandwidths, so that the antenna assembly 100 can be connected to base stations supporting mobile communication signals of different frequency bands, so that the electronic device 1000 can receive the mobile communication signals in many places.

Optionally, the first feeding system 30 is further configured to excite the first radiator 10 to receive and transmit electromagnetic wave signals in the N78 frequency band. Wherein the range of the N78 frequency band is 3.3GHz-3.8 GHz. The N78 frequency band resonates at least in the second sub radiator 14.

The operating mode of the N78 band includes a resonant mode resonating between the first coupling end 121 and the third coupling end 123. Specifically, the operating mode of the N78 band includes 1 wavelength mode resonant between the first coupling end 121 and the free end 122. That is, the operating mode of the N78 band includes 1 wavelength mode resonant between the first coupling slot 13 to the second coupling slot 16.

Referring to fig. 10, the current corresponding to the resonant mode generated by the rf signal in the N78 frequency band fed by the first feeding system 30 is mainly distributed between the first coupling end 121 and the free end 122. It can also be stated that the current density generated by exciting the radio frequency signal of the N78 frequency band fed by the first feeding system 30 on the first radiator 10 is mainly distributed between the first coupling end 121 and the free end 122. It should be noted that, in the current corresponding to the resonant mode generated by the first radiator 10, the stronger current of the radio frequency signal in the N78 frequency band fed by the first feed system 30 is distributed between the first coupling end 121 and the free end 122, which does not exclude that a small amount of current generated by the excitation of the radio frequency signal in the N78 frequency band fed by the first feed system 30 is distributed in the first sub-radiator 11 due to the coupling effect between the first sub-radiator 11 and the main radiator 12. The direction of the resonant current is not limited in this application. As shown by the dotted arrows in fig. 10, a part of the resonant current generated by the radio frequency signals in the N78 frequency band flows from the first coupling slot 13 to near the middle position of the main radiator 12, and another part of the resonant current generated by the radio frequency signals in the N78 frequency band flows from the second coupling slot 16 to near the middle position of the main radiator 12.

Specifically, the operating mode of the N78 band includes 1 wavelength mode resonant between the first coupling end 121 and the free end 122. In other words, the resonant mode generated by the rf signal in the N78 frequency band fed by the first feeding system 30 is 1 wavelength mode in which the resonant current mainly works between the first coupling end 121 and the free end 122.

The N78 frequency band is fed to the first radiator 10 by designing the first feeding system 30, so that the effective electrical length of the main radiator 12 is designed to be about 1 dielectric wavelength corresponding to the N78 frequency band, so that 1 wavelength mode of the N78 frequency band can be excited on the main radiator 12, and the main radiator 12 can support the N78 frequency band. In combination with the above-mentioned antenna assembly 100 being able to support the MB frequency band and the HB frequency band, the present embodiment further increases the coverage of the N78 frequency band, so as to further increase the frequency band of the mobile communication signal supported by the antenna assembly 100. With the coming of the 5G era, more and more 5G base stations are arranged, and more base stations supporting the N78 frequency band are also arranged, and the antenna assembly 100 provided by the embodiment of the present application is designed to support the N78 frequency band, so that the antenna assembly 100 can be connected to the base station supporting the N78 frequency band, and the antenna signal quality of the antenna assembly 100 is improved.

Optionally, the first feeding system 30 is further configured to excite the first radiator 10 to receive and transmit electromagnetic wave signals in a Wi-Fi5G frequency band. The Wi-Fi5G band resonates at least at the main radiator 12.

The Wi-Fi5G band is fed toward the first radiator 10 in the first feeding system 30, and the effective electrical length of all or part of the main radiator 12 is designed to correspond to the medium wavelength mode of the Wi-Fi5G band, so as to excite the main radiator 12 to transmit and receive the Wi-Fi5G band.

By designing the main radiator 12 to receive and transmit the Wi-Fi5G frequency band, the frequency band coverage of the antenna assembly 100 for the Wi-Fi signal can be further increased, and with the coverage of a 5G network, more and more wireless transmission devices can cover the Wi-Fi5G frequency band.

Optionally, the first feeding system 30 is further configured to excite the first radiator 10 to receive and transmit electromagnetic wave signals in the N79 frequency band. The N79 band resonates at the main radiator 12. Optionally, the range of the N79 frequency band is 4.4GHz to 5GHz.

The N79 band is fed to the first radiator 10 in the first feeding system 30, and the effective electrical length of all or part of the main radiator 12 is designed to correspond to the dielectric wavelength mode of the N79 band, so as to excite the main radiator 12 to transmit and receive the N79 band.

By designing the main radiator 12 to receive and transmit the N79 frequency band, the frequency band coverage rate of the antenna assembly 100 for cellular mobile communication signals can be further increased, and with the coverage of a 5G network, more and more wireless transmission devices can cover the N79 frequency band, and the antenna assembly 100 provided in this embodiment can be connected to a plurality of wireless radiation devices, and the N79 frequency band transmitted by the wireless radiation devices is used to improve the use of the N79 frequency band in the electronic device 1000, improve the data transmission rate of the electronic device 1000, and improve the network speed.

Optionally, referring to fig. 11, the operating mode of the N78 frequency band further includes a resonant mode that resonates on the support radiator 17. Specifically, the operating mode of the N78 frequency band includes, but is not limited to, a 1/2 wavelength mode, a 1/4 wavelength mode, or 1 wavelength mode resonant to the support radiator 17. In other words, the support radiator 17 can support the transceiving of the N78 frequency band.

Referring to fig. 11, the current corresponding to the resonant mode generated by the rf signal of the N78 frequency band fed by the first feeding system 30 is mainly distributed in the bracket radiator 17. As shown by the dotted arrows in fig. 11, the resonant current generated by the radio frequency signal of the N78 band flows from one end of the support radiator 17 to the other end.

It should be noted that the embodiment provided by the present application includes that the N78 frequency band only resonates on the main radiator 12 when the support radiator 17 is not provided, and includes that the N78 frequency band resonates on the support radiator 17 and the main radiator 12 when the support radiator 17 is provided. Of course, it may also be included that the N78 band only resonates at the support radiator 17 when the support radiator 17 is provided.

By arranging the bracket radiator 17 and the main radiator 12 which are both used for supporting the N78 frequency band and respectively generating the resonance modes, the N78 frequency band is resonated in at least two resonance modes, and the coverage bandwidth of the N78 frequency band is increased, because the theoretical bandwidth of the N78 frequency band is relatively large, a common single resonance mode is difficult to cover the large bandwidth, the antenna assembly 100 provided by the application can support the coverage of the N78 frequency band with the relatively large bandwidth; on the other hand, the position of the support radiator 17 is set independently, for example, the support radiator 17 is set in the electronic device 1000, when the user holds the electronic device 1000, the finger of the user does not contact the support radiator 17, so that the shielding of the N78 frequency band transmitted and received by the support radiator 17 is greatly reduced, and further, the N78 frequency band can be smoothly transmitted and received even in the landscape holding mode, thereby avoiding the problems of jamming and the like when the user plays a game mode on the landscape, and improving the use experience of the user using the electronic device 1000 on the landscape.

Optionally, when the first feed system 30 feeds the N79 frequency band, the main radiator 12 and the support radiator 17 may both support the N79 frequency band, and reference may be made to the description of the N78 frequency band for production principle and beneficial effect, and in addition, since the main radiator 12 and the support radiator 17 may both produce a resonance mode of the N79 frequency band, multiple resonance modes may increase the coverage bandwidth of the N79 frequency band. Of course, the support radiator 17 may support the N79 band alone.

Optionally, when the first feeding system 30 feeds the Wi-Fi5G band, the main radiator 12 and the support radiator 17 may both support the Wi-Fi5G band, and the generation principle may refer to the above description, and in addition, since the main radiator 12 and the support radiator 17 may both generate the resonance mode of the Wi-Fi5G band, the multiple resonance modes may increase the coverage bandwidth of the Wi-Fi5G band. Of course, the Wi-Fi5G band may be supported solely by the support radiator 17.

Specifically, the support radiator 17 and the main radiator 12 are both directly electrically connected to the first power feeding system 30, and the support radiator 17 is disposed in a different manner or at a different position from the main radiator 12. For example, the main radiator 12 is a conductive bezel radiator, and the support radiator 17 is disposed in the electronic device 1000, including but not limited to a Flexible Printed Circuit board (FPC) radiator molded on a Flexible Circuit board (LDS), a Laser Direct Structuring (LDS) radiator, a Print Direct Structuring (PDS) radiator, a conductive sheet radiator, and the like. The first sub-radiator 11, the main radiator 12, and the second sub-radiator 15 may be referred to as a common radiator (or a common antenna), and the cradle radiator 17 may be referred to as a cradle radiator (or a cradle antenna).

It should be noted that the first sub-radiator 11 is capacitively coupled to the main radiator 12, the main radiator 12 is capacitively coupled to the second sub-radiator 15, and the support radiator 17 is not coupled to the first sub-radiator 11, the main radiator 12, and the second sub-radiator 15.

Since the main radiator 12 and the support radiator 17 are electrically connected to the first feed system 30, the main radiator 12 and the support radiator 17 are disposed at different positions, so that the positions of the main radiator 12 and the support radiator 17 interfere with each other.

Since the support radiator 17 is not disposed on the conductive bezel 310 of the electronic device 1000, the conductive first radiator 10 on the support radiator 17 is not limited to be in the form of a straight line, a curved line, a bent line, or an arc, and the conductive first radiator 10 can support the N78 frequency band, the N79 frequency band (or the Wi-Fi5G frequency band), and can occupy a small space. Since the support radiator 17 has various forms, the effective electrical length of the support radiator 17 in a limited space can be flexibly designed, and the wavelength modes of the N78 frequency band and the N79 frequency band (or the Wi-Fi5G frequency band) can be specifically designed according to actual requirements.

Since the support radiator 17 is not touched by the hand of the user, the N78 frequency band, the N79 frequency band (or the Wi-Fi5G frequency band) have better transceiving efficiency even when held by the landscape screen, thereby improving the data transmission rate of the electronic device 1000 in the landscape screen holding scene and increasing the network speed.

Referring to fig. 12, the main radiator 12 further has a second feeding point D. The second feeding point D is located between the matching point B and the free end 122. The first antenna module 100a further comprises a second feeding system 40. The second feeding system 40 is electrically connected to the second feeding point D. The second feeding system 40 is configured to excite the first radiator 10 to at least receive and transmit electromagnetic wave signals in a GPS frequency band or a first LB frequency band.

Specifically, the second feeding system 40 may feed different rf signals to the first radiator 10, so as to excite the second sub-radiator 15 of the first radiator 10 to support different frequency bands. For example, the GPS-L5 band or the first LB band.

In a first feeding manner of the first antenna module 100a, the first feeding system 30 of the first antenna module 100a feeds the frequency bands such as LTE MHB + NR MHB + Wi-Fi2.4g + n78+ n79 to the first radiator 10, and the second feeding system 40 of the first antenna module 100a feeds the GPS frequency band (for example, GPS-L5 frequency band) to the first radiator 10.

In the second feeding manner of the first antenna module 100a, the first feeding system 30 of the first antenna module 100a feeds LTE MHB + NR MHB + Wi-Fi2.4g + n78+ n79 and the like to the first radiator 10, and the second feeding system 40 of the first antenna module 100a feeds the first LB frequency band to the first radiator 10.

The first antenna module 100a of the first feeding manner may be used in a market where there is no need for a third low-frequency antenna (i.e., the third low-frequency antenna is not required), and the first antenna module 100a of the second feeding manner may be used in a market where there is no high requirement for the GPS-L5 frequency band.

The first antenna module 100a of the first feeding manner and the first antenna module 100a of the second feeding manner may share the first radiator 10, and when the first radiator 10 is disposed on the conductive middle frame, the electronic device 1000 having the first antenna module 100a provided in the first embodiment and the electronic device 1000 having the first antenna module 100a provided in the second embodiment may share the conductive middle frame. Therefore, the same conductive middle frame can be used for different electronic products, the compatibility of the conductive middle frame is improved, the need of opening the die for various different conductive middle frames is reduced, and the cost is saved.

When designing the first antenna module 100a of the first feeding manner and the first antenna module 100a of the second feeding manner, different circuit boards (PCBs) may be configured on the same conductive middle frame, and the circuit boards are provided with the matching circuit 20, the first feeding system 30 and the second feeding system 40, in other words, the first matching system 32 (please refer to fig. 18) in the first feeding system 30 of the first antenna module 100a of the first feeding manner, the second matching system 42 (please refer to fig. 18) in the second feeding system 40, and the matching circuit 20 are different from the first matching system 32 (please refer to fig. 18) in the first feeding system 30 of the first antenna module 100a of the second feeding manner, the second matching system 42 (please refer to fig. 18) in the second feeding system 40, and the matching circuit 20. Therefore, the first antenna module 100a of the first feeding method and the first antenna module 100a of the second feeding method have different antenna matching and operation principles.

Since the effective electrical lengths of the GPS-L5 band and the first LB band for the radiator are different, a portion of the first radiator 10 can be effectively adjusted to support the GPS-L5 band or adjusted to support the first LB band by adjusting the matching circuit 20. Specific adjustment manners for the matching circuit 20 include, but are not limited to, adjusting a capacitance value of the matching circuit 20, or adjusting an inductance value of the matching circuit 20, or adjusting the matching circuit 20 from a capacitance to an inductance, or adjusting the matching circuit 20 from an inductance to a capacitance, etc.

The first antenna module 100a of the first feeding method and the first antenna module 100a of the second feeding method are specifically exemplified below.

In the first antenna module 100a of the first feeding manner, the second feeding system 40 is configured to excite the first radiator 10 to at least transceive a GPS frequency band. The GPS frequency band includes but is not limited to a GPS-L1 frequency band and/or a GPS-L5 frequency band.

The operating mode of the GPS band includes a resonance mode resonating between the matching point B and the free end 122. This embodiment will be described by taking the GPS-L5 band as an example. Specifically, the operating mode of the GPS-L5 band includes a 1/4 wavelength mode resonating between the matching point B and the free end 122.

Referring to fig. 12, the current corresponding to the resonant mode generated by the rf signal in the GPS-L5 band fed by the second feeding system 40 is mainly distributed between the matching point B and the free end 122. As shown by the dotted arrow in fig. 12, the resonance current generated by the radio frequency signal of the GPS-L5 band flows from the free end 122 to the matching point B.

The effective electrical length from the matching point B to the free end 122 is designed so that the effective electrical length from the matching point B to the free end 122 corresponds to 1/4 of the medium wavelength of the GPS-L5 frequency band. The term "corresponding" is understood to mean that the effective electrical length from the matching point B to the free end 122 is about 1/4 of the medium wavelength of the GPS-L5 band. Accordingly, the effective electrical length from the matching point B to the free end 122 is about 1/4 of the medium wavelength of the GPS-L5 band. The 1/4 wavelength mode can also be called a ground state, and has higher antenna efficiency under the ground state, so that the transceiving efficiency of the GPS-L5 frequency band is improved.

A radiator segment from the matching point B to the free end 122 is farther away from the first sub-radiator 11 than a radiator segment from the matching point B to the first coupling end 121. When the antenna assembly 100 is applied to the electronic device 1000, the radiator section between the matching point B to the free end 122 is relatively close to the top of the electronic device 1000. Because the user is in using during the GPS frequency channel, all in the time of the navigation of erectting the screen usually, horizontal screen probability is extremely low, so, will send and receive the antenna of GPS frequency channel is located the position that is close to electronic equipment 1000 top, can make electronic equipment 1000 under the state of holding of erectting the screen, send and receive the antenna of GPS frequency channel is difficult to be sheltered from by the hand, in addition, the GPS frequency channel design is in the position that is more close to the corner, and the horizontal current mode (along the current mode of X axle direction) on the excitation circuit board 500 (or ground system GND) that can be fine accounts for than higher, and the episphere efficiency of electronic equipment 1000 is higher like this, can accept more satellite's signal in the navigation, improves the signal quality of GPS frequency channel.

Referring to fig. 13, fig. 13 is a graph showing efficiency curves of the first antenna module 100a supporting GPS-L5+ MHB + Wi-Fi2.4G + N78+ N79/Wi-Fi5G according to the first feeding method of the present application. As can be seen from fig. 13, the efficiency of each frequency band is above-10 dB, and compared with the antenna module provided in the general technology, the first antenna module 100a provided in the present application supports more frequency bands, the utilization rate of the first radiator 10 is high, the area of the frame occupied by the first radiator 10 is relatively small, and each frequency band has higher efficiency.

In the first antenna module 100a with the second feeding manner, the second feeding system 40 is configured to excite the first radiator 10 to at least transmit and receive a first LB frequency band. The first LB band includes a portion of the band from 703MHz to 960MHz, e.g., B20, N28, etc.

The operating mode of the first LB frequency band includes a resonant mode resonating from the matching point B to the free end 122. Specifically, the operating mode of the first LB band includes a 1/4 wavelength mode resonating between the matching point B and the free end 122.

Referring to fig. 14, the current corresponding to the resonant mode generated by the rf signal of the first LB frequency band fed by the second feeding system 40 is mainly distributed between the matching point B and the free end 122. As shown by the dotted arrow in fig. 14, a resonance current generated by the radio frequency signal of the first LB frequency band flows from the free end 122 to the matching point B. Of course, there will also be a small fraction of the current towards the first feeding point a.

The effective electrical length from the matching point B to the free end 122 is designed so that the effective electrical length from the matching point B to the free end 122 corresponds to 1/4 of the medium wavelength of the first LB frequency band. The term "corresponding" is understood to mean that the effective electrical length from the matching point B to the free end 122 is about 1/4 of the wavelength of the first LB frequency band. Accordingly, the effective electrical length from the matching point B to the free end 122 is approximately 1/4 of the medium wavelength of the first LB frequency band. The 1/4 wavelength mode can also be called a ground state, and has higher antenna efficiency in the ground state, so that the transceiving efficiency of the first LB frequency band is improved.

The first LB frequency band comprises at least one of a first receive frequency band, a first transmit frequency band, a second transmit frequency band, and a second receive frequency band.

Referring to fig. 15, when the antenna assembly 100 has the first antenna module 100a with the second feeding manner, the antenna assembly 100 further includes a second antenna module 100b. The second antenna module 100b includes a second radiator 10b. Optionally, the second radiator 10b is a conductive frame radiator. The second radiator 10b is configured to support a second LB frequency band. The frequency band combination formed by the second LB frequency band and the first LB frequency band comprises the first receiving frequency band, the first transmitting frequency band, the second transmitting frequency band and the second receiving frequency band.

The first receiving frequency band is a receiving frequency band of a first frequency band, and the second receiving frequency band is a receiving frequency band of a second frequency band. The first transmitting frequency band is a transmitting frequency band of the first frequency band, the second transmitting frequency band is a transmitting frequency band of the second frequency band, and the first frequency band and the second frequency band are different frequency bands.

Specifically, the first antenna module 100a and the second antenna module 100b cooperate with each other to support the full bandwidth (including the receiving bandwidth and the transmitting bandwidth) of the first frequency band and the second frequency band.

In a first alternative embodiment, the first antenna module 100a supports a first receiving frequency band and a first transmitting frequency band; the second antenna module 100b supports a second receiving band and a second transmitting band.

In a second alternative embodiment, the first antenna module 100a supports a second receiving frequency band and a second transmitting frequency band; the second antenna module 100b supports a first receiving band and a first transmitting band.

In a third alternative embodiment, the first antenna module 100a supports a second receiving frequency band, a second transmitting frequency band, and a first transmitting frequency band; the second antenna module 100b supports the first receiving band.

In a fourth alternative embodiment, the first antenna module 100a supports a second receiving frequency band, a second transmitting frequency band, and a first receiving frequency band; the second antenna module 100b supports the first transmission band.

In a fifth alternative embodiment, the first antenna module 100a supports a first receiving frequency band and a first transmitting frequency band and a second transmitting frequency band; the second antenna module 100b supports a second receiving band.

In a sixth optional embodiment, the first antenna module 100a supports a first receiving frequency band, a first transmitting frequency band, and a second receiving frequency band; the second antenna module 100b supports a second transmission band.

In a seventh alternative embodiment, the first antenna module 100a supports the second receiving frequency band; the second antenna module 100b supports a second transmission band, a first transmission band, and a first reception band.

In an eighth alternative embodiment, the first antenna module 100a supports a first receiving frequency band; the second antenna module 100b supports a first transmitting band, a second transmitting band, and a second receiving band.

In a ninth alternative embodiment, the first antenna module 100a supports a second transmission frequency band; the second antenna module 100b supports a second receiving band, a first transmitting band, and a first receiving band.

In a tenth alternative embodiment, the first antenna module 100a supports a first transmission frequency band; the second antenna module 100b supports a first receiving band, a second transmitting band, and a second receiving band.

The first and second frequency bands include, but are not limited to, any two of B5, B8, N5, N8, N20, N28, B20, etc.

Further, referring to fig. 15, when the antenna assembly 100 has the first antenna module 100a with the second feeding manner, the antenna assembly 100 further includes a third antenna module 100c. The third antenna module 100c includes a third radiator 10c. Optionally, the third radiator 10c is a conductive bezel radiator. The third radiator 10c is configured to support a third LB frequency band. The third LB frequency band includes a transmitting frequency band of a first frequency band, a receiving frequency band of the first frequency band, a transmitting frequency band of the second frequency band, and a receiving frequency band of the second frequency band.

For example, the third radiator 10c supports a first receiving frequency band and a transmitting frequency band, and a second receiving frequency band and a second transmitting frequency band.

Thus, the first antenna module 100a, the second antenna module 100B and the third antenna module 100c are matched to support the full bandwidth of N28 and the full bandwidth of B20.

In general, as the curved screen of the electronic device 1000 is popularized, the frames on the left and right sides of the electronic device 1000 become narrow, the clearance environment becomes poor, and the bandwidth supported by the low frequency antennas provided on the frames on the left and right sides of the electronic device 1000 becomes small. For example, a bandwidth of 80MHz can be marginally supported at-10 dB efficiency.

Some operators today need to support two low frequency bands, such as B20+ N28 non-independent Networking (NSA). This requires that both low frequency antennas support the bandwidth of both the B20 and N28 bands simultaneously. Due to the position limitation of the configurable antenna on the electronic device 1000 and the need of configuring a specific antenna in some specific places, when the low frequency antenna is configured on the left or right side frame of the electronic device 1000, the low frequency antenna cannot support the bandwidths of the B20 and N28 frequency bands simultaneously due to the narrowing of the frame and the deterioration of the headroom environment. If the bandwidth is increased by using the adjustable capacitor on the low-frequency antenna, even if the bandwidth is increased, the efficiency can only be about-12 dB in the two frequency bands, and the cost is increased due to the use of the adjustable capacitor, which is not beneficial to the mass production of the electronic device 1000.

For example, the first frequency band is B20, and the second frequency band is N28. Wherein, the emission frequency band of B20 is 832 MHz-862MHz, and the receiving frequency band of B20 is 791 MHz-821 MHz. The emission frequency band of N28 is 703 MHz-748MHz, and the receiving frequency band of B20 is 758 MHz-803 MHz. Since the reception frequency band of B20 is close to the reception frequency band of N28. The same low frequency antenna can be used to support both the B20 and N28 receive bands.

The present application provides a scheme that three low-frequency antennas (a part of the first antenna module 100a, the second antenna module 100B, and the third antenna module 100 c) jointly support the above-mentioned B20 frequency band and N28 frequency band, where one low-frequency antenna (e.g., a part of the first antenna module 100 a) supports the N28 transmit frequency band + N28 receive frequency band, one low-frequency antenna supports (e.g., the second antenna module 100B) the B20 transmit frequency band + B20 receive frequency band, and the other low-frequency antenna (e.g., the third antenna module 100 c) serves as a diversity receive antenna of two frequency bands to support the N28 receive frequency band + B20 receive frequency band, so that each frequency band is implemented by transmitting two antennas, where one of the two receive antennas is a main set receive antenna and the other is a diversity receive antenna. This application distributes the receiving frequency range, the transmission frequency range of first frequency channel through the design to the receiving frequency range, the transmission frequency range of second frequency channel to first antenna module 100a, second antenna module 100b and third antenna module 100c, need not to support first frequency channel and second frequency channel simultaneously through an antenna module to every frequency channel all is the bandwidth support demand that two antennas of an antenna transmission received in satisfying two frequency channels.

In addition, the first antenna module 100a can support the MHB + Wi-Fi2.4G + N78+ N79/Wi-Fi5G in addition to the first frequency band or the second frequency band, so that the first antenna module 100a and the second antenna module 100b can support two low frequency bands, a separate feed technology is used, different modes on one radiator can share one structural member (frame), the supportable frequency band is further widened, the support of MHB + Wi-Fi 2.g + 4N 78+ N79/Wi-Fi5G is realized, and the bandwidth supported by the first antenna module 100a is greatly increased.

Referring to fig. 16, fig. 16 is a S11 curve of the first antenna module 100a supporting LB + MHB + Wi-Fi2.4G + N78+ N79/Wi-Fi5G according to the second feeding method of the present application. From fig. 16, S11 of each frequency band can be seen, wherein there are 7 resonant modes (the resonant modes are at the valleys of the curves) from left to right in fig. 16. The first resonant mode a is a resonant mode of the first antenna module 100a supporting the LB band, and is also a 1/4 wavelength mode resonant between the free end 122 and the matching point B. The second resonant mode b is a resonant mode in which the first antenna module 100a supports the MB band, and is also a 1/2 wavelength mode resonant between the first coupling slot 13 and the second coupling slot 16. The third resonant mode c is a resonant mode in which the first antenna module 100a supports the HB band + the WiFi 2.4G band, and is also a 1/4 wavelength mode resonating between the first coupling slot 13 and the first ground 111. The fourth resonant mode d and the fifth resonant mode e are resonant modes of the first antenna module 100a supporting the N78 frequency band, and are respectively a 1-fold wavelength mode resonating between the first coupling slot 13 and the second coupling slot 16 and a 1/2 wavelength mode resonating on the support radiator 17; alternatively, the fourth resonant mode d and the fifth resonant mode e are a 1/2 wavelength mode resonating at the support radiator 17 and a 1-fold wavelength mode resonating between the first coupling slot 13 and the second coupling slot 16, respectively. The sixth resonance mode f and the seventh resonance mode h are resonance modes in which the first antenna module 100a supports the N79 band or the Wi-Fi5G band, which are a resonance mode in which the main radiator 12 is resonated and the bracket radiator 17 is resonated, respectively, or the sixth resonance mode f and the seventh resonance mode h are a resonance mode in which the main radiator 12 is resonated and a resonance mode in which the bracket radiator 17 is resonated, respectively.

It is noted that, the N78 frequency band is 3.3GHz-3.8GHz, the bandwidth is very wide, one resonant mode is difficult to cover, and it can be clearly seen from fig. 16 that the first antenna module 100a provided by the present application covers N78 with 2 modes, which can cover the full bandwidth of N78.

Referring to fig. 17, fig. 17 illustrates simulation efficiency of each frequency band supported by first antenna module 100a of the present application as LB + MHB + Wi-Fi2.4G + nq78 + nq79/Wi-Fi 5G. As can be seen from fig. 17, the efficiency of each frequency band is above-10 dB, and compared with the antenna module provided in the general technology, the first antenna module 100a provided in the present application supports more frequency bands, the utilization rate of the first radiator is high, the area of the frame occupied by the first radiator is relatively small, and each frequency band has higher efficiency.

In other embodiments, the second feeding system 40 is further configured to excite the first radiator 10 to receive and transmit electromagnetic wave signals in the N78 frequency band. In other words, the N78 band may also be fed to the first radiator 10 by the second feeding system 40, so that the N78 band and the MB band are respectively fed to the first radiator 10 by different feeding systems, thereby increasing the antenna form of the antenna assembly 100.

Optionally, the second feeding system 40 is further configured to excite the first radiator 10 to receive and transmit the electromagnetic wave signal in the N79 frequency band. The first feeding system 30 is configured to excite the first radiator 10 to receive and transmit electromagnetic wave signals in the Wi-Fi5G frequency band. Because the N79 frequency band and the Wi-Fi5G frequency band are partially overlapped, if the N79 frequency band and the Wi-Fi5G frequency band are fed in through the same feeding system, the N79 frequency band and the Wi-Fi5G frequency band cannot be separated. The N79 frequency band and the Wi-Fi5G frequency band are fed through two different feeding systems, so that the first radiator 10 can simultaneously receive and transmit the N79 frequency band and the Wi-Fi5G frequency band, and further increase mobile communication signals supported by the antenna assembly 100 and increase the supported Wi-Fi frequency band. In other embodiments, the first feeding system 30 may excite the first radiator 10 to receive and transmit the electromagnetic wave signals in the N79 frequency band, and the second feeding system 40 may excite the first radiator 10 to receive and transmit the electromagnetic wave signals in the Wi-Fi5G frequency band.

The above is an example of the frequency bands supported by the first sub radiator 11, the main radiator 12 and the support radiator 17, and it is needless to say that a person skilled in the art can extend the above embodiments of the present application to support other frequency bands, such as N77.

The structure of the first feeding system 30 will be described below with reference to the drawings.

Referring to fig. 18, the first feeding system 30 includes a first feed 31 and a first matching system 32. The first feed 31 includes, but is not limited to, a radio frequency circuit for providing a radio frequency signal to the first radiator 10, and the like. The first matching system 32 is electrically connected between the first feed 31 and the first feeding point a. The first matching system 32 is configured to tune a radio frequency signal (e.g., MB frequency band, HB frequency band, wi-Fi2.4G frequency band, etc.) fed from the first feed 31, so that the radio frequency signal is fed into the first radiator 10 with high transmission efficiency. The first matching system 32 further comprises a filter circuit, the filter circuit comprises a band-pass band-stop circuit, the band-pass band-stop circuit has a band-pass characteristic for a frequency band fed in by the first feed source 31, and has a band-stop characteristic for a frequency band fed in by the second feed source, so that the isolation degree between different feed systems is improved.

Referring to fig. 18, optionally, the first matching system 32 further includes a first sub-matching circuit 321 and a second sub-matching circuit 322. One end of the first sub-matching circuit 321 and one end of the second sub-matching circuit 322 are both electrically connected to the first feeding point a directly or indirectly. The other end of the first sub-matching circuit 321 is electrically connected to the first feed 31. The other end of the second sub-matching circuit 322 is electrically connected to the support radiator 17. The first sub-matching circuit 321 is used for tuning the radio frequency signal fed by the first feed 31. The first sub-matching circuit 321 includes at least one of a capacitor, an inductor, a combination device of a capacitor and an inductor, and a switch tuning device, which are not listed here. The second sub-matching circuit 322 is configured to block the MB frequency band, the HB frequency band, and the Wi-Fi2.4G frequency band, and to turn on the N78 frequency band.

In other words, the second sub-matching circuit 322 is a filter circuit on a branch of the support radiator 17, and the second sub-matching circuit 322 is used for blocking the MB frequency band, the HB frequency band, and the Wi-Fi2.4G frequency band, so as to prevent the MB frequency band, the HB frequency band, and the Wi-Fi2.4G frequency band from interfering with the frequency band transmitted and received on the support radiator 17, so that the radio frequency signals of the MB frequency band, the HB frequency band, and the Wi-Fi2.4G frequency band flow to the first feeding point a, so as to form resonance on the first sub-radiator 11 and the main radiator 12, and also promote the transmission and reception of the MB frequency band, the HB frequency band, and the Wi-Fi2.4G frequency band; in addition, the second sub-matching circuit 322 connects the N78 frequency band, so that the bracket radiator 17 receives and transmits the N78 frequency band.

The second sub-matching circuit 322 is a high-pass low-resistance circuit, that is, the high frequency blocks the low frequency from passing through, and the boundary value of the high frequency and the low frequency can be selected from a value between the N78 frequency band (3.3 to 3.8 GHz) and the HB frequency band (2300 MHz to 2690 MHz), for example, 2.7GHz and 3GHz, which is merely an example and is not limited to this data. Optionally, the second sub-matching circuit 322 is a capacitor with a small capacitance value, and optionally, the capacitance value of the capacitor is 0.5PF, which is merely an example and is not limited to this data and the like. Of course, the second sub-matching circuit 322 may also be another filter circuit that blocks the low frequency band and conducts the high frequency band.

Optionally, the first sub-matching circuit 321 and the second sub-matching circuit 322 are designed into the same matching system, so that the matching devices are designed in a centralized manner.

Referring to fig. 18, for the antenna assembly 100 with the second feeding system 40, the first matching system 32 includes a third sub-matching circuit 323. One end of the third sub-matching circuit 323 is electrically connected to the first feeding point a, and the other end of the third sub-matching circuit 323 is electrically connected to the first feed 31. Further, the other end of the third sub-matching circuit 323 is electrically connected to one end of the first sub-matching circuit 321 (wherein, the other end of the first sub-matching circuit 321 is electrically connected to the first feed 31). The third sub-matching circuit 323 is configured to block a frequency band generated by the second feeding system 40 exciting the first radiator 10, so as to prevent a radio frequency signal fed by the second feeding system 40 from affecting a radio frequency signal fed by the first feeding system 30, and improve an isolation between the first feeding system 30 and the second feeding system 40.

Optionally, referring to fig. 19, when the signal fed by the second feeding system 40 is in a GPS-L5 frequency band, the third sub-matching circuit 323 is a band-stop circuit for blocking the GPS-L5 frequency band. When the signal fed by the second feeding system 40 is in the LB frequency band, the third sub-matching circuit 323 is a band rejection circuit for blocking the LB frequency band.

For example, the third sub-matching circuit 323 includes a first capacitor C1 and a first inductor L1, one end of the first capacitor C1 and one end of the first inductor L1 are both electrically connected to the first feeding point a, and the other end of the first capacitor C1 and the other end of the first inductor L1 are both electrically connected to one end of the first sub-matching circuit 321.

When the signal fed by the second feeding system 40 is in the LB frequency band, the value of the first capacitor C1 includes, but is not limited to, 6pF and the value of the first inductor L1 includes, but is not limited to, 6.8nH.

Of course, the first sub-matching circuit 321, the second sub-matching circuit 322, and the third sub-matching circuit 323 are flexible and not limited to the forms in the above-mentioned examples, as long as the first radiator that can effectively excite the various modes in fig. 4, 6, 8, 10, and 12 and make the connection of the first feeding system 30 and the connection of the second feeding system 40 do not affect each other.

The structure of the second feeding system 40 will be described below with reference to the drawings.

Referring to fig. 18, the second feeding system 40 includes a second feeding source 41 and a second matching system 42. The second feed 41 includes, but is not limited to, a radio frequency circuit for providing a radio frequency signal to the first radiator 10, and the like. The second matching system 42 is electrically connected between the second feed 41 and the second feeding point D. The second matching system 42 is configured to tune the rf signal (e.g., GPS-L5 band/LB band, N78 band, etc.) fed from the second feed 41, so that the rf signal is fed into the first radiator 10 with high transmission efficiency. The second matching system 42 further comprises a filter circuit, the filter circuit comprises a band-pass band-stop circuit, the band-pass band-stop circuit has a band-pass characteristic for the frequency band fed in by the second feed source 41, and the band fed in by the first feed source 31 has a band-stop characteristic, so that the isolation degree between different feed systems is improved. The second matching system 42 includes at least one of a capacitor, an inductor, a combination of a capacitor and an inductor, and a switch tuning device, which are not listed herein.

The structure of the matching circuit 20 is illustrated below with reference to the drawings.

Optionally, the matching circuit 20 further includes at least one of a zero ohm circuit, a single or multiple capacitors, a single or multiple inductors, a combination of a single or multiple capacitors and a single or multiple inductors, a variable capacitor, and a switch tuning device.

The zero ohm circuit refers to that the first feeding point a is shorted to the ground reference system GND, and includes, but is not limited to, that the first feeding point a is directly electrically connected to the ground reference system GND through a zero ohm conductive body, or that the main radiator 12 is electrically connected to the ground reference system GND at the first feeding point a in an integrated manner.

The switch tuning device 50 comprises at least one of a switch and an inductor in combination, a switch and a capacitor in combination, and a switch and an inductor and a capacitor in combination. The switch tuning device 50 achieves tuning of the resonant frequency by controlling the on-off switching of the switch differently to ground impedance.

Referring to fig. 20, the switch tuning device 50 includes a single-pole double-throw switch 51, a first lumped element 52 electrically connected to the ground reference GND, and a second lumped element 53 electrically connected to the ground reference GND. The first lumped element 52 and the second lumped element 53 each include an inductor, a capacitor, or a combination of an inductor and a capacitor. The combination of the inductance and the capacitance of the lumped element can be a combination of one capacitance and one inductance in series or in parallel, a combination of two capacitances and two inductances, a combination of three capacitances and three inductances, and the like.

The first lumped element 52 and the second lumped element 53 have different impedances to ground for the electromagnetic wave signals of the first frequency band. Of course, the single-pole double-throw switch 51 and the two lumped

elements

52 and 53 are merely illustrative, and the present application is not limited to the two lumped elements and the single-pole double-throw switch, and may be two independent switches; further, the number of lumped elements may be three, four, etc.

Referring to fig. 8, optionally, the matching circuit 20 can match to ground for the MB frequency band by adjusting a tuning device of the matching circuit 20. In other words, the resonant current of 1/4 wavelength mode generated on the main radiator 12 in the MB band fed by the first feeding system 30 flows to the reference ground through the matching circuit 20. Therefore, a new current path is formed, a 1/4 wavelength mode with high excitation efficiency is excited, and the receiving and transmitting of the MB frequency band are promoted. Of course, the MB band may not have a 1/4 wavelength mode generated on the main radiator 12.

Referring to fig. 12, when the signal fed by the second feeding system 40 is in the GPS-L5 band, the matching circuit 20 can also match the GPS-L5 band to ground (low impedance to ground). In other words, the resonant current of 1/4 wavelength mode generated on the main radiator 12 in the GPS-L5 band fed by the second feeding system 40 flows to the reference ground through the matching circuit 20. Therefore, a new current loop is formed, a 1/4 wavelength mode with high effectiveness rate is excited, and the receiving and transmitting of the GPS-L5 frequency band are promoted.

Since the current of the MB band is mainly concentrated in the first coupling slot 13 to the matching point B, and the current of the GPS-L5 band is concentrated in the second coupling slot 16 to the matching point B, the matching circuit 20 realizes that the 1/4 wavelength mode of the MB band and the 1/4 wavelength mode of the GPS-L5 band both act on the main radiator 12, and do not interfere with each other, thereby increasing the number of bands supported by the main radiator 12, and increasing the antenna bandwidth supported by the antenna assembly 100.

Referring to fig. 14, when the signal fed by the second feeding system 40 is in the first LB frequency band, the matching circuit 20 can also match the first LB frequency band to ground (low impedance to ground). In other words, the resonant current of the 1/4 wavelength mode generated on the main radiator 12 by the first LB band fed by the second feeding system 40 flows to the ground reference GND through the matching circuit 20. Therefore, a new current loop is formed, a 1/4 wavelength mode with high acting rate is excited, and the receiving and transmitting of an LB frequency band are promoted. Alternatively, the matching circuit 20 may be a grounded capacitor, a grounded inductor, a grounded switch tuning device, or the like.

Optionally, referring to fig. 21, the matching circuit 20 includes a second capacitor C2, where the second capacitor C2 is a large capacitor, and the matching to the ground is implemented for the MB frequency band and the GPS-L5 frequency band. For example, the second capacitance C2 is 8.2pF.

Optionally, referring to fig. 22, the matching circuit 20 includes a second inductor L2, and the second inductor L2 is a small inductor, so as to match the MB frequency band and the GPS-L5 frequency band to ground.

The antenna assembly 100 also includes a controller (not shown) that is electrically connected to the matching circuit 20. The controller controls the switch of the matching circuit 20 to be switched to electrically connect different lumped elements, so as to tune the frequency bands (such as the MB frequency band, the N78 frequency band, the N79 frequency band, the GPS-L5 frequency band, etc.) supported by the main radiator 12, and further realize the position adjustment of the resonant frequency of the frequency band supported by the main radiator 12. For example, when the switched inductance value is smaller, the resonance frequency is shifted more toward the high frequency end; when the switched capacitance value is larger, the resonance frequency is shifted more toward the low frequency side. In this way, tuning of the frequency bands supported on the main radiator 12 is achieved, optimizing the efficiency of the frequency bands supported by the antenna assembly 100.

In addition, since the Wi-Fi2.4G band is supported by the first sub-radiator 11 and has a certain length, even if the tuning device of the matching circuit 20 tunes the band on the main radiator 12, the Wi-Fi2.4G band is not affected, so that the antenna assembly 100 can be connected to Wi-Fi signals all the time, and it is ensured that the Wi-Fi2.4G band can coexist with and be used at the same time as the MHB band in any state. The MHB frequency band is some frequency bands within 1710MHz-2690 MHz.

The first ground terminal 111 and the second ground terminal 124 are electrically connected to the ground reference system GND, and the specific electrical connection manner includes, but is not limited to, being electrically connected to the ground reference system GND by means of a direct connection of conductive metal on the first sub radiator 11, and also being electrically connected to the ground by means of a matching circuit 20, where the matching circuit 20 further includes at least one of a zero-ohm circuit, a single or multiple capacitors, a single or multiple inductors, a combination device of a single or multiple capacitors and a single or multiple inductors, a variable capacitor, and a switch tuning device.

The above is a specific distance description of the structure of the antenna assembly 100, and the structure of the electronic device 1000 is exemplified below with reference to the drawings. Take the electronic device 1000 as a mobile phone as an example.

In general, operators generally only test the performance of handheld, human-head antennas (the handset is placed on the head). However, in research, technicians of the application find that in a scene in which a mobile phone is held in a horizontal screen (for example, a horizontal-screen game scene or a scene in which a horizontal screen views a video), a user generally holds the mobile phone in the horizontal screen, and when the horizontal screen is held, an antenna on the mobile phone can be shielded, so that the situation that the antenna is held dead frequently during game playing or a scene with high jamming delay is caused, and the problem of user experience is greatly influenced.

Referring to fig. 23, the present application provides an electronic device 1000 capable of effectively improving antenna signal quality in a landscape holding scenario, where the electronic device 1000 includes the antenna assembly 100 according to any one of the above embodiments. Fig. 23 is only a schematic diagram and does not represent the true proportional relationship of the respective structures.

The bezel 310 of the electronic device 1000 has conductive segments. Alternatively, bezel 310 may be entirely conductive segments or partially conductive segments. The first sub radiator 11 and the main radiator 12 are integrated on the conductive segments of the frame 310, that is, the first sub radiator 11 is a part of the conductive segments of the frame 310, and the main radiator 12 is another part of the conductive segments of the frame 310. The first coupling gap 13 between the first sub radiator 11 and the main radiator 12 is filled with an insulating material. The second coupling gap 16 between the main radiator 12 and the second sub-radiator 15 is filled with an insulating material. Of course, in other embodiments, the first sub-radiator 11, the main radiator 12, and the second sub-radiator 15 may be integrated with the conductive part of the rear cover 320. In other words, the first sub radiator 11, the main radiator 12 and the second sub radiator 15 are integrated as a part of the housing 300.

The first power feeding system 30 and the second power feeding system 40 are disposed on a circuit board 500 of the electronic device 1000.

Referring to fig. 24, the frame 310 includes a first side frame 311 and a second side frame 312 disposed opposite to each other, and a third side frame 313 and a fourth side frame 314 connected between the first side frame 311 and the second side frame 312. The third side frame 313 is disposed opposite to the fourth side frame 314. The third side frame 313 and the fourth side frame 314 are parallel and equal in length. The first side frame 311 and the second side frame 312 are parallel and equal in length. The length of the first side frame 311 is less than the length of the third side frame 313. The first sub radiator 11 and the main radiator 12 are both disposed on the third side frame 313 or the fourth side frame 314, and the first sub radiator 11 is located on a side of the main radiator 12 departing from the first side frame 311. Optionally, the first side frame 311 is a top side of the default display screen of the mobile phone system, and the second side frame 312 is a bottom side of the default display screen of the mobile phone system. The third side frame 313 is the frame 310 near the user's left hand side when the user holds the handset and faces the handset display 200. The fourth side frame 314 is the frame 310 near the right hand side of the user when the user holds the phone and faces the display 200 of the phone.

Optionally, the first sub radiator 11 and the main radiator 12 are disposed on the third side frame 313 or the fourth side frame 314 and close to the first side frame 311. Further, the first sub radiator 11 and the main radiator 12 are disposed on the third side frame 313 and close to the first side frame 311. Specifically, the first sub-radiator 11 is disposed near the middle of the third side frame 313, the main radiator 12 is disposed between the second sub-radiator 15 and the first sub-radiator 11, and the second sub-radiator 15 is disposed near the first side frame 311 or at a corner between the third side frame 313 and the first side frame 311. The bracket radiator 17 is disposed in the bezel 310 and near the third side bezel 313.

Optionally, referring to fig. 24, the first antenna module 100a is located at a position where the third side frame 313 is close to the first side frame 311. When the electronic device 1000 further includes a second antenna module 100b and a third antenna module 100c, the second radiator 10b of the second antenna module 100b is located on the fourth side frame 314, and the third radiator 10c of the third antenna module 100c is located on the second side frame 312. The second side frame 312 is a bottom frame. The display screen 200 is a curved display screen. The dimensions of the third and fourth side frames 313 and 314 in the Z-axis direction are smaller than the dimensions of the first and second side frames 311 and 312 in the Z-axis direction. The second antenna module 100b and the third antenna module 100c can refer to the description of the second antenna module 100b and the third antenna module 100c, and are not repeated herein.

Referring to fig. 23, in the present application, the first sub radiator 11 is located in the middle of the third side frame 313. The first sub radiator 11 is generally provided with a battery 600 and the like corresponding to a portion inside the case 300, and is not provided with the circuit board 500. In other words, the first power feeding system 30 and the first sub-radiator 11 form a clearance space in which the battery 600 and the like are disposed. By means of setting Wi-Fi signals +4G signals +5G signals to be fed into the first radiating body 10 through the first feed system 30, the first sub-radiating body 11 can correspond to a region where the circuit board 500 is not arranged, so that the first sub-radiating body 11 can use a frame corresponding to the region of the battery 600, the utilization rate of the first radiating body 10 to other regions where the circuit board 500 is not arranged is improved, and the requirement that the first radiating body 10 can be connected with the Wi-Fi signals +4G signals +5G signals is met.

Referring to fig. 23, a distance between the first feeding point a and the first side frame 311 is greater than or equal to a preset distance H, and the preset distance H is greater than or equal to 20mm, so as to reduce shielding of a portion (from the first feeding point a to the first ground 111) below the first feeding point a when the electronic device 1000 is held in a landscape mode, thereby ensuring that the antenna assembly 100 can keep connecting an HB band, an MB band, a Wi-Fi2.4G band, and the like in the mobile communication signal even when the electronic device is held in a landscape mode, and ensuring that the mobile communication signal and the Wi-Fi signal can be used smoothly in a landscape game.

Further, a distance between the first feeding point a and the first side frame 311 may be greater than or equal to 30mm. Optionally, the distance between the first feeding point a and the first side frame 311 is 45mm, so as to further reduce the shielding of the portion (from the first feeding point a to the first ground 111) below the first feeding point a when the electronic device 1000 is held in a landscape mode.

Referring to fig. 24 and fig. 25, the electronic apparatus 1000 further includes a rear camera module 400. The rear camera module 400 is close to the connection between the first side frame 311 and the third side frame 313. The first sub radiator 11 and the main radiator 12 are both disposed on the third side frame 313. Since the rear camera module 400 is protruded on the rear cover 320. When holding the mobile phone with the horizontal screen, the fingers are placed at the protruding position of the rear camera module 400 (on the cover plate of the rear camera module 400). Therefore, fingers do not touch the first sub radiator 11, the main radiator 12 and the second sub radiator 15, so that the shielding of the first sub radiator 11, the main radiator 12 and the second sub radiator 15 in the mode that the mobile phone is held by the transverse screen is reduced, the signal receiving and transmitting efficiency of the antenna assembly 100 is improved, and the network speed in the game scene of the transverse screen is improved.

Referring to fig. 24 and 25, the electronic apparatus 1000 further includes a ground reference GND. The ground reference GND is located within the bezel 310. The matching circuit 20 includes a conductive connection segment connected between the main radiator 12 and the ground reference GND. The main radiator 12, the matching circuit 20 and the ground reference system GND are integrally formed, that is, the matching circuit 20 is a metal middle frame direct connection material.

The support radiator 17 may include, but is not limited to, a first radiator of a flexible circuit board disposed on the flexible circuit board, a first radiator directly formed by Laser Direct Structuring (LDS), a first radiator directly formed by Printing (PDS), and a conductive steel sheet. The thickness of the support radiator 17 is relatively small, light and thin, and a flexible and bendable form is formed, so that the support radiator can be conveniently arranged in a narrow space or a curved space in the shell 300, and the compactness of the device in the electronic device 1000 is improved.

The space occupied by the first sub radiator 11, the main radiator 12, the second sub radiator 15 and the bezel 310 is reduced by setting the spatial multiplexing. The support radiator 17 is located in the housing 300, so as to reduce the shielding of the support radiator 17 by a finger, and further avoid mutual interference between the support radiator 17 and the main radiator 12, on the other hand, because the frequency band supported by the support radiator 17 is relatively high, and the size of the support radiator 17 is relatively small, the space occupied by the support radiator 17 in the housing 300 is relatively small.

Referring to fig. 24, an antenna (the antenna in the present application corresponds to the first radiator 10) capable of supporting Wi-Fi signals +4G signals +5G signals is disposed at a position, close to the top (the first side frame 311), of a left side frame (the third side frame 313) of the back of the electronic device 1000, so that the electronic device 1000 can enjoy scenes such as horizontal screen games or videos smoothly under the Wi-Fi signals, the 4G signals, and the 5G signals. The following description will be given by taking a landscape game scene as an example.

Referring to fig. 18 and 23, the left frame of the back of the electronic device 1000 has 2 feeding points (i.e., a first feeding point a and a second feeding point D) near the top, the first feeding point a in the landscape game mode is electrically connected to the first feeding system 30, in order to obtain a good landscape game performance, the distance from the first feeding point a to the top of the electronic device 1000 is at least greater than 20mm, even greater than 30mm, and the antenna radiation of the first feeding system 30 mainly depends on the first radiator 10 below the matching point B (the first radiator 10 between the matching point B and the first ground 111), and this part of the first radiator 10 is located in the middle of the left frame of the back of the electronic device 1000, so that the first radiator is not held when the user holds the landscape screen, thereby achieving a good screen speed in the landscape holding scenario.

Referring to fig. 18 and 23, in this example, the distance from the first feeding system 30 to the top of the electronic device 1000 is about 45mm or more, and the signal frequency band fed by the first feeding system 30 is a combined frequency band of LTE MHB (4G mid-high band) + NR MHB (5G mid-high band) + Wi-Fi2.4G + n78+ n 79. The signal fed by the second feeding system 40 is in the GPS-L5 frequency band. The above signal bands are merely examples, and the bands may be added or subtracted.

Referring to fig. 18 and 23, a lower ground level is located between the first feeding system 30 and the second feeding system 40 through the matching circuit 20, and the lower ground level may be a metal conductive middle frame direct connection material, or a 0 ohm, a capacitor, an inductor, a combination of a capacitor and an inductor, a switch tuning device, or the like.

Referring to fig. 18 and 23, since the 1/4 wavelength mode of the MB band is the main mode, the distance from the main radiation part (the first radiator 10 between the matching point B and the first coupling end 121) of the main mode to the top of the mobile phone is greater than 30, and the main radiation part is difficult to hold when the mobile phone is landscape, the MB band is not affected when the mobile phone is landscape. Because the first sub-radiator 11 is closer to the middle of the mobile phone, the mobile phone cannot be held at all when the screen is horizontal, and all the LTE HB frequency band (4G high frequency) and the NR HB frequency band (5G high frequency) cannot be influenced by hand holding. The main modes of the N78 and N79 frequency bands are on the support radiator 17, the support radiator 17 is inside the mobile phone housing 300, and is not held by the hand in the non-frame 310, so that the N78 and N79 frequency bands have good performance in the horizontal screen. The GPS-L5 frequency band is designed on the upper portion of the mobile phone and is easy to hold by hands when the GPS-L5 frequency band is in a horizontal screen, because the GPS-L5 frequency band is usually used when scenes are in a vertical screen navigation, the probability of the horizontal screen is extremely low, the GPS-L5 frequency band is designed at a position closer to a corner, a transverse current mode of a PCB (such as a circuit board where a reference ground system GND (ground system) is located) can be well excited, the efficiency of an upper hemisphere is higher, and signals of more satellites can be received when navigation is performed. It should be emphasized that, since the first feeding system 30 and the second feeding system 40 are both fed on the same frame 310 and the first radiator 10, the first sub-radiator 11, the main radiator 12 and the second sub-radiator 15 belong to a common antenna, which provides a bandwidth enhancement effect for the game antenna of the whole first feeding system 30.

According to the antenna assembly, by designing the antenna assembly of the frame antenna and the bracket antenna, the multi-frequency antenna comprising the combined frequency band of LTE MHB + NR MHB + Wi-Fi2.4G + N78+ N79 is designed on the left side edge of the back face of the electronic device 1000, the GPS-L5 frequency band is further designed for the second feeding system 40, and the antenna assembly 100 with relatively more frequency bands supported in the antenna assembly 100 which cannot shield antenna signals is held by a hand of a conventional horizontal screen.

The present application designs a common antenna with two slots opened at two ends, and in conjunction with a support antenna, the first radiator 10 of the antenna assembly 100 is very long, and basically can cover a wide bandwidth without tuning through an adjustable device such as a switch, and if an adjustable device is needed, an adjustable device can be added at the lower ground position of the matching point B to better cover each frequency band. Since the Wi-Fi2.4G band is generated by a parasitic 1/4 wavelength mode on the first sub-radiator 11 and belongs to the inherent length, when the tunable device on the matching point B is tuned, the performance of the Wi-Fi2.4G band is still available, and the Wi-Fi2.4G band can be used with the MHB band at any state.

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

Claims

1. An antenna assembly, comprising a first antenna module, the first antenna module comprising:

the first radiator comprises a main radiator and a sub radiator, and a first coupling gap is formed between the main radiator and the sub radiator; the main radiator is provided with a first coupling end, a free end, a first feeding point and a matching point, the first feeding point and the matching point are located between the first coupling end and the free end, the matching point is located between the first feeding point and the free end, the sub radiator is provided with a grounding end and a second coupling end, a first coupling gap is formed between the second coupling end and the first coupling end, and the grounding end is grounded;

2. The antenna assembly of claim 1, wherein the first radiator further comprises a support radiator electrically connected to the first feed system, the support radiator configured to support the N78 band, or the N78 band and the N79 band, or the N78 band and the Wi-Fi band.

3. An antenna assembly, comprising a first antenna module, the first antenna module comprising:

the support radiator is electrically connected to the first feed system, and the support radiator is configured to support the N78 frequency band, or the N78 frequency band and the N79 frequency band, or the N78 frequency band and the Wi-Fi frequency band.

4. The antenna assembly of claim 3, wherein said first radiator further comprises a sub-radiator having a ground terminal and a second coupling terminal, said first coupling slot being between said second coupling terminal and said first coupling terminal, said ground terminal being grounded; the HB frequency band at least resonates at the sub radiator; and the Wi-Fi frequency band resonates at the sub radiator or resonates at the sub radiator and the main radiator.

5. An antenna component according to claim 2 or 3, characterized in that the operating mode of the N78 band comprises a 1/2 wavelength mode or a 1/4 wavelength mode resonating at the radiator of the support.

6. The antenna assembly of claim 2 or 3, wherein the first feeding system comprises a feeding source and a matching system electrically connected between the feeding source and the first feeding point, the matching system further comprises a first sub-matching circuit and a second sub-matching circuit, one end of the first sub-matching circuit and one end of the second sub-matching circuit are electrically connected to the first feeding point, the other end of the first sub-matching circuit is electrically connected to the feeding source, the other end of the second sub-matching circuit is electrically connected to the bracket radiator, the first sub-matching circuit is configured to tune the rf signal fed by the feeding source, and the second sub-matching circuit is configured to block the MB frequency band, the HB frequency band, and the Wi-Fi frequency band and conduct the N78 frequency band.

7. The antenna assembly of claim 1 or 4, wherein the Wi-Fi band comprises a Wi-Fi2.4G band, and the operating modes of the HB band and the Wi-Fi2.4G band comprise 1/4 wavelength modes that resonate between the second coupling terminal and the ground terminal.

8. The antenna assembly according to claim 1 or 3, characterized in that the side of the free end of the sub-radiator remote from the first coupling end is a second coupling slot; the working modes of the MB band include a 1/4 wavelength mode resonating between the matching point and the first coupling end and a 1/2 wavelength mode resonating between the first coupling end and the free end.

9. The antenna assembly of claim 1 or 3, wherein the Wi-Fi bands comprise Wi-Fi5G bands, at least one of the N78 band, the N79 band, the Wi-Fi5G band resonating at least at the primary radiator; wherein the working modes of the N78 frequency band include 1 wavelength mode resonating between the first coupled end and the free end.

10. The antenna assembly of claim 1 or 3, wherein the matching circuit comprises at least one of a zero ohm circuit, a capacitance, an inductance, a combination capacitance and inductance device, a switch tuning device.

11. The antenna assembly of claim 2 or 4, wherein said sub radiator and said main radiator are conductive bezel radiators, and said support radiator is an LDS radiator, FPC radiator, PDS radiator, or a conductive sheet.

12. The antenna assembly according to claim 1 or 3, characterized in that said main radiator further has a second feeding point, said second feeding point being located between said matching point and said free end, said antenna assembly further comprising a second feeding system, said second feeding system being electrically connected to said second feeding point, said second feeding system being adapted to excite said first radiator to transmit and receive electromagnetic wave signals of at least a GPS band or a first LB band.

13. The antenna assembly of claim 12, wherein the operating mode of the GPS band includes a 1/4 wavelength mode resonant between the matching point and the free end; or the working mode of the first LB frequency band comprises a 1/4 wavelength mode which resonates between the matching point and the free end.

14. The antenna assembly of claim 13, wherein the GPS frequency band is a GPS-L5 frequency band.

15. The antenna assembly of claim 12, wherein the first LB frequency band comprises at least one of a first receive frequency band, a first transmit frequency band, a second receive frequency band; wherein the first receiving frequency band is a receiving frequency band of a first frequency band, and the second receiving frequency band is a receiving frequency band of a second frequency band; the first transmission frequency band is a transmission frequency band of the first frequency band, the second transmission frequency band is a transmission frequency band of the second frequency band, and the first frequency band and the second frequency band are different frequency bands.

16. The antenna assembly of claim 15, further comprising a second antenna module comprising a second radiator configured to support a second LB frequency band, wherein the second LB frequency band and the first LB frequency band form a frequency band combination comprising the first receive frequency band, the first transmit frequency band, the second transmit frequency band, and the second receive frequency band.

17. The antenna assembly of claim 15, further comprising a third antenna module comprising a third radiator configured to support a third LB frequency band, the third LB frequency band comprising a transmit frequency band of the first frequency band, a receive frequency band of the first frequency band, a transmit frequency band of the second frequency band, and a receive frequency band of the second frequency band.

18. An antenna assembly according to claim 16 or 17, wherein the first frequency band comprises N28, and the second frequency band comprises B20; alternatively, the first frequency band includes B20, and the second frequency band includes N28.

19. The antenna assembly of claim 12, wherein the first feed system comprises a feed source and a matching system electrically connected between the feed source and the first feed point, the matching system comprises a third sub-matching circuit, one end of the third sub-matching circuit is electrically connected to the first feed point, the other end of the third sub-matching circuit is electrically connected to the feed source, and the third sub-matching circuit is configured to block a frequency band generated by the second feed system exciting the first radiator.

20. The antenna assembly of claim 12, wherein the second feed system is further configured to excite the first radiator to transceive electromagnetic wave signals in the N78 frequency band.

21. An electronic device, comprising an antenna assembly according to any one of claims 1 to 20.

22. The electronic device of claim 21, wherein the electronic device further comprises a bezel having conductive segments, and wherein the sub-radiator and the main radiator are integrated into the conductive segments of the bezel.

23. The electronic device of claim 22, wherein the bezel comprises a first side bezel and a second side bezel that are disposed opposite each other, and a third side bezel and a fourth side bezel that are connected between the first side bezel and the second side bezel, the third side bezel being disposed opposite the fourth side bezel, wherein a length of the first side bezel is less than a length of the third side bezel; the sub-radiator and the main radiator are arranged on the third side frame, and the sub-radiator is positioned on one side, away from the first side frame, of the main radiator; the electronic equipment further comprises a second antenna module and a third antenna module, wherein a radiator of the second antenna module is positioned on the fourth side frame; and the radiator of the third antenna module is positioned on the second side frame.

24. The electronic device of claim 23, wherein a distance between the first feed point and the first side frame is greater than or equal to 20mm.

25. The electronic device of claim 23, further comprising a rear camera module, wherein the rear camera module is close to a connection between the first side frame and the third side frame, and the sub-radiator and the main radiator are both disposed on the third side frame.

26. The electronic device of claim 22, further comprising a ground reference system located within the bezel, wherein the matching circuit comprises a conductive connection connected between the main radiator and the ground reference system, and wherein the main radiator, the matching circuit, and the ground reference system are integrally formed.