WO2024001069A1

WO2024001069A1 - Antenna assembly, middle-frame assembly, and electronic device

Info

Publication number: WO2024001069A1
Application number: PCT/CN2022/139102
Authority: WO
Inventors: 罗智杰
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-06-27
Filing date: 2022-12-14
Publication date: 2024-01-04
Also published as: CN114976600A

Abstract

The present application relates to the technical field of communications. Disclosed are an antenna assembly (100), a middle-frame assembly (40), and an electronic device (200). In the antenna assembly (100), a first feed point (13) of a first radiation body (10) receives a first excitation signal, and the first radiation body (10) is capacitively coupled to a second radiation body (20); a tuning control point (26) of the second radiation body (20) is connected to a tuning control circuit (27); a second feed point (23) of the second radiation body (20) receives a second excitation signal; and the tuning control circuit (27) adjusts a medium-high frequency band resonant mode, which is generated by means of the first radiation body (10) and/or the second radiation body (20) under the excitation of the first excitation signal, and a low-frequency band resonant mode, which is generated by means of the first radiation body (10) and/or the second radiation body (20) under the excitation of the second excitation signal, wherein the medium-high frequency band resonant mode at least comprises an LTE medium-high frequency band resonant mode and an NR medium-high frequency band resonant mode, and the low-frequency band resonant mode at least comprises an LTE low-frequency band resonant mode and an NR low-frequency band resonant mode. Accordingly, the antenna performance of the antenna assembly (100) in the present application is improved.

Description

Antenna components, mid-frame components and electronic equipment

【Technical field】

The present application relates to the field of communication technology, and specifically relates to an antenna component, a middle frame component and an electronic device.

【Background technique】

With the development of technology, electronic devices with communication functions such as mobile phones are becoming more and more popular and their functions are becoming more and more powerful. Electronic devices usually include antenna components to implement communication functions of the electronic device. However, the communication performance of antenna components in electronic devices in the related art is not good enough, and there is still room for improvement.

[Content of the invention]

On the one hand, this application provides an antenna assembly. The antenna assembly includes:

A first radiator includes a ground point and a first free end, and the first radiator has a first feed point for receiving the first excitation signal;

The second radiator includes a third free end and a second free end. The third free end is spaced apart from the first free end for capacitive coupling. The second radiator has a tuning control point and is used for receiving. a second feed point of the second excitation signal, the second feed point being disposed between the tuning control point and the second free end; and

A tuning control circuit connected to the tuning control point, the tuning control circuit configured to adjust the mid-to-high frequency band resonance generated by the first excitation signal stimulating the first radiator and/or the second radiator. mode and a low-frequency band resonance mode generated by exciting the first radiator and/or the second radiator with the second excitation signal;

Wherein, the mid-to-high frequency band resonance mode at least includes the Long Term Evolution LTE mid-to-high frequency band resonance mode and the New Radio NR mid-to-high frequency band resonance mode, and the low-frequency band resonance mode at least includes the LTE low-frequency band resonance mode and the NR low-frequency band resonance mode.

On the one hand, this application provides a middle frame component. The middle frame component includes:

substrate;

a frame, arranged on the edge of the substrate; and

The antenna component as described above is provided on the frame.

On the one hand, this application provides an electronic device. The electronic device includes:

display screen;

a housing assembly for mounting the display screen; and

The antenna assembly as described above is provided on the housing assembly.

[Picture description]

In order to more clearly illustrate the technical solutions in the embodiments of the present application, a brief introduction will be given below to the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of an antenna assembly in an embodiment of the present application;

Figure 2 is a resonant current distribution diagram of some resonant modes in the antenna assembly in the embodiment shown in Figure 1;

Figure 3 is a resonant current distribution diagram of some resonant modes in the antenna assembly in the embodiment shown in Figure 1;

Figure 4 is a return loss curve diagram of four resonance modes in the antenna assembly in the embodiment shown in Figure 2;

Figure 5 is a dynamically adjusted return loss curve of four resonant modes in the antenna assembly in the embodiment shown in Figure 4;

Figure 6 is a graph of return loss for the two resonant modes in the antenna assembly shown in Figure 3;

Figure 7 is a dynamically adjusted return loss curve for the two resonant modes in the antenna assembly shown in Figure 6;

Figure 8 is a schematic structural diagram of the tuning control circuit in the embodiment shown in Figure 1;

Figure 9 is a schematic structural diagram of the first matching circuit and the first feed source in the embodiment shown in Figure 1;

Figure 10 is a schematic structural diagram of the first matching circuit and the first feed source in the embodiment shown in Figure 9;

Figure 11 is a schematic diagram comparing the antenna performance of the antenna assembly in the embodiment shown in Figure 9 and the embodiment shown in Figure 10;

Figure 12 is a schematic structural diagram of the second matching circuit in the embodiment shown in Figure 1 when it cooperates with the second feed source;

Figure 13 is a schematic structural diagram of an electronic device in an embodiment of the present application;

Figure 14 is a schematic structural diagram of the antenna assembly installed on the middle frame assembly of the embodiment shown in Figure 13;

Figure 15 is a schematic structural diagram of an electronic device in an embodiment of the present application.

【Detailed ways】

The present application will be described in further detail below with reference to the accompanying drawings and embodiments. It is particularly pointed out that the following embodiments are only used to illustrate the present application, but do not limit the scope of the present application. Similarly, the following embodiments are only some, not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

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

This application provides an antenna assembly, which includes:

The second radiator includes a second free end and a third free end. The third free end is spaced apart from the first free end for capacitive coupling. The second radiator has a tuning control point and is used for receiving. a second feed point of the second excitation signal, the second feed point being disposed between the tuning control point and the second free end; and

In some embodiments, the tuning control circuit is configured to adjust the mid-to-high frequency band resonance mode to support at least one of the following operations:

Carrier aggregation CA in NR mid- and high-frequency bands;

CA for LTE mid- and high-frequency bands; and

Dual connectivity ENDC for LTE mid-high frequency band and NR mid-high frequency band.

In some embodiments, the CA of the NR mid-to-high frequency band includes at least one of the CA of the N1 frequency band and the N41 frequency band, the CA of the N1 frequency band and the N78 frequency band, the CA of the N3 frequency band and the N41 frequency band, and the CA of the N3 frequency band and the N78 frequency band. .

In some embodiments, the ENDC of the LTE mid-to-high frequency band and the NR mid-to-high frequency band includes the ENDC of the LTE B1 frequency band and the N41 frequency band, the ENDC of the LTE B3 frequency band and the N41 frequency band, the ENDC of the LTE B39 frequency band and the N41 frequency band, and the LTE B1 frequency band. and at least one of the ENDC of the N78 band, the ENDC of the LTE B3 band and the N78 band, or the ENDC of the LTE B39 band and the N78 band.

In some embodiments, the CA of the LTE mid-to-high frequency band includes the CA of the LTE B1 frequency band and the LTE B3 frequency band and/or the CA of the LTE B1 frequency band, the LTE B3 frequency band, and the LTE B7 frequency band.

In some embodiments, the LTE mid-to-high frequency band includes at least one of LTE B1 band, LTE B3 band, LTE B4 band, LTE B7 band, LTE B38 band, LTE B39 band, LTE B40 band and LTE B41 band;

The NR mid-to-high frequency band includes at least one of N1 frequency band, N3 frequency band, N40 frequency band, N41 frequency band and N78 frequency band.

In some embodiments, the mid-to-high frequency band resonant mode includes at least one of a first resonant mode, a second resonant mode, a third resonant mode and a fourth resonant mode, and the resonant current in the first resonant mode is distributed between Between the ground point and the first feed point, the resonance current in the second resonance mode is distributed between the third free end and the tuning control point, and the resonance current in the third resonance mode The resonant current is distributed between the third free end and the second free end, and the resonant current in the fourth resonance mode is distributed between the first free end and the first feeding point.

In some embodiments, the LTE low frequency band includes at least one of LTE B5 band, LTE B8 band, LTE B12 band, LTE B17 band, LTE B18 band, LTE B19 band, LTE B20 band, LTE B26 band and LTE B28 band. one;

The NR low frequency band includes at least one of N5 frequency band, N8 frequency band, N20 frequency band and N28 frequency band.

In some embodiments, the low-frequency band resonance mode includes a fifth resonance mode, and the resonance current in the fifth resonance mode is distributed between the third free end and the second feed point.

In some embodiments, the low-frequency band resonance mode includes a sixth resonance mode, and the resonance current in the sixth resonance mode is distributed between the third free end and the second free end.

In some embodiments, the tuning control circuit is grounded, and the tuning control circuit includes a switching control unit and/or an adjustable capacitor.

In some embodiments, the tuning control circuit includes:

A first resistor has a connecting end connected to the tuning control point;

The first inductor has one connection end connected to the other connection end of the first resistor, and the other connection end is connected to ground;

The first branch and the second branch, each of the first branch and the second branch includes:

A first switch has a connection end connected to the other connection end of the first resistor;

The second resistor has one connection end connected to the other connection end of the first switch;

The second switch has one connection end connected to the other connection end of the first switch, and the other connection end is grounded; and

The first capacitor has one connection end connected to the other connection end of the second resistor, and the other connection end is connected to ground; and

The third branch and the fourth branch, each said third branch and the fourth branch include:

A third switch has a connection end connected to the other connection end of the first resistor;

A third resistor has a connection end connected to the other connection end of the third switch;

The fourth switch has one connection end connected to the other connection end of the third switch, and the other connection end is grounded; and

The second inductor has one connection end connected to the other connection end of the third resistor, and the other connection end is connected to ground.

In some embodiments, the antenna assembly further includes:

A first matching circuit, a connecting end connected to the first feed point; and

A first feed source is connected to the other connection end of the first matching circuit and is used to generate the first excitation signal.

In some embodiments, the first matching circuit includes:

The third inductor has one connection end connected to the first feed point and the other connection end connected to ground;

The second capacitor has a connection end connected to the first feed point;

A third capacitor has a connection end connected to the other connection end of the second capacitor, and the other connection end is connected to the first feed source; and

The fourth inductor has a connection end connected to the other connection end of the second capacitor, and the other connection end is connected to the first feed source.

In some embodiments, the first matching circuit includes:

The fourth capacitor has a connection end connected to the first feed point; and

The fifth switch has one connection end connected to the other connection end of the fourth capacitor, and the other connection end connected to the other connection end of the second capacitor.

In some embodiments, the antenna assembly further includes:

The second matching circuit has a connecting end connected to the second feed point; and

The second feed source is connected to the other connection end of the second matching circuit and is used to generate the second excitation signal.

In some embodiments, the second matching circuit includes:

The fifth inductor has one connection end connected to the second feed point and the other connection end connected to ground;

The sixth inductor has one connection end connected to the second feed point, and the other connection end connected to the second feed source; and

The fifth capacitor has one connection end connected to the other connection end of the sixth inductor, and the other connection end is connected to ground.

This application provides a middle frame component, which includes:

substrate;

a frame, arranged on the edge of the substrate; and

The above-mentioned antenna assembly is arranged on the frame.

This application provides an electronic device, which includes:

display screen;

a housing assembly for mounting the display screen; and

The above-mentioned antenna assembly is provided in the housing assembly.

This application provides an antenna assembly. Antenna components can be used in electronic devices. The antenna assembly can realize multi-mode switching in the mid-to-high frequency band, and can also realize multi-mode switching in the low-frequency band in some embodiments. In addition, the antenna assembly can also increase the bandwidth of the mid-to-high frequency band in some embodiments, so that the antenna assembly supports NR-5G (also known as 5G New Radio, also known as 5G New Radio, also known as 5G-NR, also known as It is NR-5G, which can also be called Carrier Aggregation (CA) in the NR (New Radio) band and/or CA in the LTE (Long Term Evolution) band and/or 4G wireless access network and 5G -NR's dual connectivity (E-UTRAN New Radio-Dual Connectivity, ENDC for short) combination.

As used herein, "electronic equipment" (which may also be referred to as "terminals" or "mobile terminals" or "electronic devices") includes, but is not limited to, devices configured to be connected via wired lines (such as via the Public Switched Telephone Network (PSTN)). ), digital subscriber line (DSL), digital cable, direct cable connection, and/or another data connection/network) and/or via (e.g., for cellular networks, wireless local area networks (WLAN), digital such as DVB-H networks A device for receiving/transmitting communication signals through a wireless interface of a television network, satellite network, AM-FM broadcast transmitter, and/or another communication terminal. A communication terminal configured to communicate via a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal" or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; Personal Communications System (PCS) terminals that may combine cellular radiotelephones with data processing, fax, and data communications capabilities; may include radiotelephones, pagers, Internet/Intranet access , web browsers, planners, calendars, and/or PDAs with Global Positioning System (GPS) receivers; as well as conventional laptop and/or handheld receivers or other electronic devices including radiotelephone transceivers. A mobile phone is an electronic device equipped with a cellular communication module.

Please refer to FIG. 1 , which is a schematic structural diagram of an antenna assembly 100 according to an embodiment of the present application. The antenna assembly 100 may be one or more of a Flexible Printed Circuit (FPC) antenna, a Laser Direct Structuring (LDS) antenna, a Print Direct Structuring (PDS) antenna, and a metal frame antenna. A mixture of species. Of course, the antenna assembly 100 can also be other types of antennas, which will not be described again. The embodiments of this application are introduced by taking a metal frame antenna as an example.

The antenna assembly 100 may include a first radiator 10 and a second radiator 20 spaced apart by a gap 101 . That is, the first radiator 10 and the second radiator 20 are spaced apart for capacitive coupling. The first radiator 10 and the second radiator 20 cooperate to transmit and receive electromagnetic wave signals, thereby realizing the multiplexing of the first radiator 10 and the second radiator 20 and also realizing the multiplexing of space, which is also conducive to reducing the size of the antenna assembly 100 size of.

The terms "first", "second", "third", etc. in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, features defined as "first", "second", "third", etc. may explicitly or implicitly include at least one of these features.

Referring to FIG. 1 , the first radiator 10 has a ground point 11 away from the gap 101 and a first free end 12 close to the gap 101 .

Ground point 11 can be grounded. In some embodiments, the arrangement of the grounding point 11 to coincide with the free end on the side away from the first free end 12 can reduce the length between the grounding point 11 and the free end on the side away from the first free end 12 in FIG. 1 . small, thereby making the size of the first radiator 10 smaller.

The first free end 12 is spaced apart from the second radiator 20 , that is, the gap 101 is provided between the first free end 12 and the second radiator 20 .

The first radiator 10 has a first feed point 13 located between the ground point 11 and the first free end 12 . In some embodiments, the first feed point 13 may be connected to the first matching circuit 14 . The first matching circuit 14 may be connected to the first feed 15 .

The first matching circuit 14 is mainly used to meet the requirements of the antenna assembly 100 for the mid-to-high frequency band. The first matching circuit 14 may include a switching control unit and/or a load circuit, or an adjustable capacitor and/or an adjustable inductor, or an adjustable capacitor and/or a switching control unit. In one embodiment, the switch control unit may be a switch chip with a switching function, or may be a single-pole multi-throw switch or a single-pole single-throw switch.

The first feed source 15 may be used to generate a first excitation signal to excite the first radiator 10 and/or the second radiator 20 to generate a mid-to-high frequency band resonance mode that supports the mid-to-high frequency band.

Referring to FIG. 1 , the second radiator 20 has a second free end 21 away from the gap 101 and a third free end 22 close to the gap 101 .

The third free end 22 is spaced apart from the first radiator 10 , such as the first free end 12 , that is, the gap 101 is disposed between the first free end 12 and the first radiator 10 , such as the first free end 12 .

The second radiator 20 has a second feed point 23 located between the second free end 21 and the third free end 22 . In some embodiments, the second feed point 23 is connected to the second matching circuit 24 . The second matching circuit 24 may be connected to the second feed source 25 .

The second matching circuit 24 is mainly used to meet the requirements of the antenna assembly 100 for the low-frequency band. The second matching circuit 24 may include a switching control unit and/or a load circuit, or an adjustable capacitor and/or an adjustable inductor, or an adjustable capacitor and/or a switching control unit. That is, the second matching circuit 24 may be the same as the first matching circuit 14 or may have a similar structure or similar functions or may have a different structure.

The second feed source 25 may be used to generate a second excitation signal to excite the first radiator 10/or the second radiator 20 to support a low-frequency band resonance mode in the low-frequency band. In some embodiments, the second excitation signal can also excite the first radiator 10/or the second radiator 20 to generate other resonance modes.

The second radiator 20 has a tuning control point 26 located between the third free end 22 and the second feed point 23, the tuning control point 26 being connectable to the tuning control circuit 27. Tuning control circuit 27 is connected to ground.

The tuning control circuit 27 can realize the requirement that the antenna assembly 100 supports the low frequency band. Of course, in some embodiments, the requirement that the antenna assembly 100 supports medium and high frequency bands can also be achieved. Thus, the tuning control circuit 27 may comprise a switching control unit and/or a load circuit, or an adjustable capacitor and/or an adjustable inductor, or an adjustable capacitor and/or a switching control unit. In one embodiment, the switch control unit may be a switch chip with a switching function, or may be a single-pole multi-throw switch or a single-pole single-throw switch.

In some embodiments, the mid-to-high frequency band resonance mode supported by the antenna assembly 100 can be adjusted under the control of the tuning control circuit 27 and/or the first matching circuit 14 .

In some embodiments, the mid- and high-frequency band resonance modes include at least the LTE mid- and high-frequency band resonance modes and the NR mid- and high-frequency band resonance modes.

In some embodiments, the low-frequency band resonance mode supported by the antenna assembly 100 can be adjusted under the control of the tuning control circuit 27 and/or the second matching circuit 24 .

In some embodiments, the low-frequency band resonance mode includes at least an LTE low-frequency band resonance mode and a NR low-frequency band resonance mode.

Please refer to FIG. 2 , which is a resonant current distribution diagram of some resonant modes in the antenna assembly 100 in the embodiment shown in FIG. 1 . The first feed source 15 may be used to generate a first excitation signal to excite the first radiator 10 and/or the second radiator 20 . The first excitation signal excites the first radiator 10 and/or the second radiator 20 to generate a mid-to-high frequency band resonance mode that supports the mid-to-high frequency band, such as the first resonance mode a1, the second resonance mode a2, the third resonance mode a3, the fourth resonance mode a1, the second resonance mode a2, the third resonance mode a3, and the fourth resonance mode a1. Resonance mode a4.

In some embodiments, the antenna assembly 100 operates in a fundamental mode between the ground point 11 and the first feed point 13 to generate the first resonant mode a1. That is, the resonance current in the first resonance mode a1 may be distributed between the ground point 11 and the first feeding point 13 .

In some embodiments, the fundamental mode of the antenna assembly 100 operating between the slot 101 (or the third free end 22) and the tuning control point 26 generates the second resonant mode a2. That is, the resonance current in the second resonance mode a2 may be distributed between the gap 101 (or the third free end 22 ) and the tuning control point 26 .

In some embodiments, the fundamental mode of the antenna assembly 100 operating between the gap 101 (or the third free end 22 ) and the second free end 21 generates the third resonance mode a3. That is, the resonance current in the third resonance mode a3 may be distributed between the gap 101 (or the third free end 22 ) and the second free end 21 .

In some embodiments, the fundamental mode of the antenna assembly 100 operating between the gap 101 (or the first free end 12 ) and the first feed point 13 generates the fourth resonance mode a4. That is, the resonance current in the fourth resonance mode a4 may be distributed between the gap 101 (or the first free end 12 ) and the first feeding point 13 .

Please refer to FIG. 3 . FIG. 3 is a resonant current distribution diagram of some resonant modes in the antenna assembly 100 in the embodiment shown in FIG. 1 . The second feed source 25 may be used to generate a second excitation signal to excite the first radiator 10 and/or the second radiator 20 . In some embodiments, the second excitation signal excites the first radiator 10 and/or the second radiator 20 to generate a low-frequency band resonance mode that supports the low-frequency band, such as the fifth resonance mode a5. In some embodiments, the second excitation signal may also excite the second radiator 20 to generate a resonant mode such as the sixth resonant mode a6.

In some embodiments, the fundamental mode of the antenna assembly 100 operating between the gap 101 (or the third free end 22 ) and the second feed point 23 generates the fifth resonance mode a5. That is, the resonance current in the fifth resonance mode a5 may be distributed between the gap 101 (or the third free end 22) and the second feeding point 23.

In some embodiments, the fundamental mode of the antenna assembly 100 operating between the gap 101 (or the third free end 22 ) and the second free end 21 generates the sixth resonant mode a6 . That is, the resonance current in the sixth resonance mode a6 may be distributed between the gap 101 (or the third free end 22 ) and the second free end 21 .

Please refer to Figures 4 and 5. Figure 4 is a return loss curve diagram of four resonant modes in the antenna assembly 100 in the embodiment shown in Figure 2. Figure 5 is a return loss curve of four resonance modes in the antenna assembly 100 in the embodiment shown in Figure 4. The resonance mode dynamically adjusts the return loss curve. The horizontal axis is frequency (GHz) and the vertical axis is return loss (dB). The antenna assembly 100 may support the first resonance mode a1, the second resonance mode a2, the third resonance mode a3, and the fourth resonance mode a4. Among them, the frequency band corresponding to the first resonance mode a1 is the middle and high frequency band b1, the frequency band corresponding to the second resonance mode a2 is the middle and high frequency band b2, the frequency band corresponding to the third resonance mode a3 is the middle and high frequency band b3, and the frequency band corresponding to the fourth resonance mode a3 is the middle and high frequency band b3. The frequency band corresponding to the resonance mode a4 is the mid-to-high frequency band b4.

The return loss curve in Figure 4 may be the return loss curve c1 in Figure 5. The frequency bands in which the antenna assembly 100 operates, such as the mid-to-high frequency bands a1, a2, a3, and a4, can be tuned through the tuning control circuit 27. While tuning, the return loss curve can change. For example, the return loss curve c1 in Figure 5 changes to the return loss curve c2. For example, the return loss curve c2 changes to the return loss curve c3. For example, the return loss curve c3 in Figure 5 changes to the return loss curve c1.

In the return loss curves c1, c2, and c3 in Figure 5, the mid-to-high frequency band b1 under the first resonance mode a1, the mid-to-high frequency band b2 under the second resonance mode a2, and the mid-to-high frequency band under the third resonance mode a3 b3 and the mid-to-high frequency band b4 under the fourth resonance mode a4 jointly form a wider mid-to-high frequency band.

When the tuning control circuit 27 is used to tune the frequency bands in which the antenna assembly 100 operates, such as the mid-to-high frequency bands a1, a2, a3, and a4, the mid-to-high frequency band b1 in the first resonant mode a1 and the mid-to-high frequency band b1 in the second resonant mode a2 can be tuned. The mid-to-high frequency band b2, the mid-to-high frequency band b3 under the third resonance mode a3, and the mid-to-high frequency band b4 under the fourth resonance mode a4 jointly form the mid-to-high frequency band bandwidth. In some embodiments, the mid-to-high frequency band includes at least the LTE mid-to-high frequency band and the NR mid-to-high frequency band.

In some embodiments, the CA of the NR mid-to-high frequency band includes at least one of the CA of the N1 frequency band and the N41 frequency band, the CA of the N1 frequency band and the N78 frequency band, the CA of the N3 frequency band and the N41 frequency band, and the CA of the N3 frequency band and the N78 frequency band.

In one embodiment, the LTE mid-to-high frequency band includes at least one of LTE B1 band, LTE B3 band, LTE B4 band, LTE B7 band, LTE B38 band, LTE B39 band, LTE B40 band and LTE B41 band, and/or The NR mid-to-high frequency band includes at least one of N1 frequency band, N3 frequency band, N40 frequency band, N41 frequency band and N78 frequency band.

The mid-to-high frequency band of the antenna assembly 100 is, for example, the mid-to-high frequency band b1 in the first resonant mode a1, the mid-to-high frequency band b2 in the second resonant mode a2, the mid-to-high frequency band b3 in the third resonant mode a3, and the fourth resonant mode a4. The mid-to-high frequency band b4 may include the CA of the NR mid-to-high frequency band and/or the LTE mid-to-high frequency band and the ENDC to the NR mid-to-high frequency band.

In some embodiments, the ENDC of the LTE mid-to-high frequency band and the NR mid-to-high frequency band include: the ENDC of the LTE B1 frequency band and the N41 frequency band, the ENDC of the LTE B3 frequency band and the N41 frequency band, the ENDC of the LTE B39 frequency band and the N41 frequency band, the LTE B1 frequency band and the N41 frequency band. At least one of the ENDC of the N78 band, the ENDC of the LTE B3 band and the N78 band, or the ENDC of the LTE B39 band and the N78 band.

In one embodiment, the mid-to-high frequency band of the antenna assembly 100 is, for example, the mid-to-high frequency band b1 in the first resonant mode a1, the mid-to-high frequency band b2 in the second resonant mode a2, the mid-to-high frequency band b3 in the third resonant mode a3, The mid-to-high frequency band b4 under the fourth resonance mode a4 may include CA of the LTE mid-to-high frequency band. In some embodiments, the CA of the LTE mid- and high-frequency bands includes the CA of the LTE B1 band and the LTE B3 band and/or the CA of the LTE B1 band, the LTE B3 band, and the LTE B7 band.

Please refer to Figure 5. The horizontal axis is frequency (GHz) and the vertical axis is return loss (dB). There are d1 (1.71, -9.6691) and d2 (1.88, -8.3027) on the return loss curve c1. It can be seen that the mid-to-high frequency band b1 can include the frequency band 1.71-1.88GHz, and the return loss is less than -7.5dB, so the antenna assembly 100 can Works well in the first resonance mode a1. There are d3 (1.92, -7.6373) and d4 (2.17, -12.374) on the return loss curve c1. It can be seen that the mid-to-high frequency band b2 can include the frequency band 1.92-2.17GHz, and the return loss is less than -7.5dB, so the antenna assembly 100 can Works well in the second resonance mode a2. There are d9 (3.4, -6.32) and d10 (3.6, -6.1354) on the return loss curve c1. It can be seen that the mid-to-high frequency band b4 can include the frequency band 3.4-3.6GHz, and the corresponding return loss of some frequency bands is less than -7.5dB, so The antenna assembly 100 can work well in the fourth resonance mode a4.

The return loss curve c2 after tuning by the tuning control circuit 27 has d5 (2.3, -6.3584) and d6 (2.4, -28.841). It can be seen that the medium and high frequency band b2 can include the frequency band 2.3-2.4GHz, and some frequency bands correspond to the return loss curve c2. The wave loss is less than -7.5dB, and even the return loss can be -28.841dB, so the antenna assembly 100 can work well in the second resonance mode a2, and the antenna performance of the antenna assembly 100 can be changed under the tuning of the tuning control circuit 27 .

The return loss curve c3 after being tuned by the tuning control circuit 27 has d7 (2.5, -5.2057) and d8 (2.7, -16.357). It can be seen that the mid-to-high frequency band b2 can include the frequency band 2.5-2.7GHz, and the return loss corresponding to some frequency bands The wave loss is less than -7.5dB, and even the return loss can be -16.357dB, so the antenna assembly 100 can work well in the second resonance mode a2, and the antenna performance of the antenna assembly 100 can be changed under the tuning of the tuning control circuit 27 .

Furthermore, when the tuning control circuit 27 is used to tune the frequency bands in which the antenna assembly 100 operates, such as the mid-to-high frequency bands a1, a2, a3, and a4, the mid-to-high frequency band b1 in the first resonant mode a1 and the second resonant mode a2 can be tuned. The mid-to-high frequency band b2, the mid-to-high frequency band b3 under the third resonance mode a3, and the mid-to-high frequency band b4 under the fourth resonance mode a4 jointly form the mid-to-high frequency band bandwidth.

Please refer to Figures 6 and 7. Figure 6 is a return loss curve diagram of two resonant modes in the antenna assembly 100 shown in Figure 3. Figure 7 is a dynamic adjustment return loss curve of the two resonant modes in the antenna assembly 100 shown in Figure 6. Wave loss curve graph, the horizontal axis is frequency (GHz), and the vertical axis is return loss (dB). The return loss curve in FIG. 6 may be the return loss curve c4 in FIG. 7 . The antenna assembly 100 may support the fifth resonance mode a5 and the sixth resonance mode a6. Among them, the frequency band corresponding to the fifth resonance mode a5 is the low-frequency frequency band b5, and the frequency band corresponding to the sixth resonance mode a6 is the frequency band b6. Among them, on the return loss curve c4, there are e1 (0.744, -6.7083), e2 (1.312 , -2.4034), low-frequency band b5 may include 0.744GHz, frequency band b6 may include 1.312GHz, and -6.7083dB is less than -2.4034dB. Therefore, the antenna performance of the antenna assembly 100 in the fifth resonant mode a5 is better than that in the sixth resonant mode. Antenna performance under a6.

The frequency band when the antenna assembly 100 is working, such as the low frequency band b5 and the frequency band b6, can be tuned through the tuning control circuit 27 . While tuning, the return loss curve can change. For example, the return loss curve c4 in Figure 7 changes to the return loss curve c5. For example, the return loss curve c5 in Figure 7 changes to the return loss curve c6. For example, the return loss curve c6 in Figure 7 changes to the return loss curve c5.

In the return loss curves c4, c5, and c6 in Figure 7, the low-frequency band b5 in the fifth resonance mode a5 can be different frequency bands in the low-frequency band. Furthermore, it can be tuned through the tuning control circuit 27 so that the low frequency band b5 can include the LTE low frequency band and/or the NR low frequency band.

In some embodiments, the LTE low frequency band includes at least one of LTE B5 band, LTE B8 band, LTE B12 band, LTE B17 band, LTE B18 band, LTE B19 band, LTE B20 band, LTE B26 band and LTE B28 band.

In some embodiments, the NR low frequency band includes at least one of N5 band, N8 band, N20 band and N28 band.

Please refer to Figure 7. The horizontal axis is frequency (GHz) and the vertical axis is return loss (dB). There are e3 (0.7, -4.8277) and e4 (0.79, -4.9648) on the return loss curve c4, and the low-frequency band b5 can include 0.7-0.79GHz. There are e5 (0.824, -6.4661) and e6 (0.894, -6.609) on the return loss curve c5, and the low-frequency band b5 can include 0.824-0.894GHz. There are e7 (0.88, -7.2099) and e8 (0.96, -7.2059) on the return loss curve c5, and the low-frequency band b5 can include 0.88-0.96GHz. The antenna assembly 100 is adjusted by the tuning control circuit 27, and the return loss changes, through e3 (0.7, -4.8277), e4 (0.79, -4.9648), e5 (0.824, -6.4661), e6 (0.894, -6.609 ), e7 (0.88, -7.2099), and e8 (0.96, -7.2059), it can be seen that on the return loss curve c6, the return loss of the low-frequency band b5 under the fifth resonance mode a5 is higher than the return loss curve c4, The low-frequency band b5 on c5 has good return loss, so after tuning by the tuning control circuit 27, the bandwidth of the low-frequency band can be adjusted, and the antenna performance of the fifth resonant mode a5 can also be made better.

In one embodiment, the tuning control circuit 27 includes a switch control unit 271 and/or an adjustable capacitor. In one embodiment, please refer to FIG. 8 , which is a schematic structural diagram of the tuning control circuit 27 in the embodiment shown in FIG. 1 . The tuning control circuit 27 may include a first resistor Rfc with a connection end connected to the tuning control point 26, a first inductor L1 with a connection end connected to the other connection end of the first resistor Rfc and the other connection end being grounded, and a first inductor L1 respectively connected to the first resistor Rfc. The other connection end of a resistor Rfc is connected to the first branch 272, the second branch 273, the third branch 274 and the fourth branch 275.

In some embodiments, the inductance of the first inductor L1 is 80 nH.

The first branch 272 may include a first switch SW1 with a connection end connected to the other connection end of the first resistor Rfc, a second resistor Rf1 with a connection end connected to the other connection end of the first switch SW1, and a connection end. The second switch SWsh1 is connected to the other connection end of the first switch SW1 and the other connection end is grounded, and the first capacitor C1 has a connection end connected to the other connection end of the second resistor Rf1 and the other connection end is grounded.

The second branch 273 may include a first switch SW2 with a connection end connected to the other connection end of the first resistor Rfc, a second resistor Rf2 with a connection end connected to the other connection end of the first switch SW2, and a connection end. The second switch SWsh2 is connected to the other connection end of the first switch SW2 and the other connection end is grounded, and the first capacitor C2 has a connection end connected to the other connection end of the second resistor Rf2 and the other connection end is grounded.

It can be seen that the circuit structures of the first branch 272 and the second branch 273 are the same. In some embodiments, the capacitance of the first capacitor C1 is 2.9 pF. In some embodiments, the capacitance of the first capacitor C2 is 1.7 pF.

The third branch 274 may include a third switch SW3 with a connection end connected to the other connection end of the first resistor Rfc, a third resistor Rf3 with a connection end connected to the other connection end of the third switch SW3, and a connection end. The fourth switch SWsh3 is connected to the other connection end of the third switch SW3 and the other connection end is grounded, and the second inductor L2 has one connection end connected to the other connection end of the third resistor Rf3 and the other connection end is grounded.

The fourth branch 275 may include a third switch SW4 with a connection end connected to the other connection end of the first resistor Rfc, a third resistor Rf4 with a connection end connected to the other connection end of the third switch SW4, and a connection end. The fourth switch SWsh4 is connected to the other connection end of the third switch SW4 and the other connection end is grounded, and the second inductor L3 has one connection end connected to the other connection end of the third resistor Rf4 and the other connection end is grounded.

It can be seen that the circuit structures of the third branch 274 and the fourth branch 275 are the same. In some embodiments, the inductance of the second inductor L2 is 9.4 nH. In some embodiments, the inductance of the second inductor L3 is 19 nH.

It can be understood that the first switch SW1, the second switch SWsh1, the first switch SW2, the second switch SWsh2, the third switch SW3, the fourth switch SWsh3, the third switch SW4 and the fourth switch SWsh4 may constitute the switch control unit 271. Of course, the switch control unit 271 may also include other structures. In some embodiments, the switch control unit 271 may also be based on the first switch SW1, the second switch SWsh1, the first switch SW2, the second switch SWsh2, the third switch SW3, the fourth switch SWsh3, the third switch SW4, the fourth The switch SWsh4 undergoes structural and control modifications.

In some embodiments, referring to Figure 8, tuning is performed using switch control unit 271. During the tuning process, the switch control unit 271 and the supported frequency bands are as shown in the following table:

In some embodiments, please refer to FIG. 9 , which is a schematic structural diagram of the first matching circuit 14 and the first feed source 15 in the embodiment shown in FIG. 1 . The first matching circuit 14 may include a third inductor L4 with a connection end connected to the first feed point 13 and the other connection end connected to ground, a second capacitor C3 with a connection end connected to the first feed point 13 , a connection end The third capacitor C4 is connected to another connection end of the second capacitor C3 and the other connection end is connected to the first feed source 15 and a connection end is connected to the other connection end of the second capacitor C3 and the other connection end is connected to the third capacitor C3. A feed 15 is connected to the fourth inductor L5. In one embodiment, the inductance of the third inductor L4 is 18 nH. In one embodiment, the capacitance of the second capacitor C3 is 0.8pF. In one embodiment, the capacitance of the third capacitor C4 is 0.8pF. In one embodiment, the inductance of the fourth inductor L5 is 18 nH.

In some embodiments, please refer to FIG. 10 , which is a schematic structural diagram of the first matching circuit 14 and the first feed source 15 in the embodiment shown in FIG. 9 . The first matching circuit 14 may further include a fifth switch SW5 having a connection end connected to the first feed point 13 and a connection end connected to another connection end of the fifth switch SW5 and the other connection end being connected to the second capacitor C3. The other connection terminal is connected to the fourth capacitor C5. It can be understood that the fifth switch SW5 and the fourth capacitor C5 are in a series relationship, that is, the order of the two can be adjusted, for example, replaced with each other. In one embodiment, the capacitance of the fourth capacitor C5 is 1 pF. In some embodiments, the fifth switch SW5 may be a single pole single throw switch.

In some embodiments, please refer to FIG. 11 , which is a schematic diagram comparing the antenna performance of the antenna assembly 100 in the embodiment shown in FIG. 9 and the embodiment shown in FIG. 10 . Among them, f1 is the system total efficiency (System Total Efficiency, system total efficiency = system radiation efficiency (System Radiation Efficiency) - return loss) curve of the antenna assembly 100 in the embodiment shown in Figure 9. F2 is the total system efficiency curve of the antenna assembly 100 in the embodiment shown in FIG. 10 . Among them, there are g1 (2.5, -1.9869) and g2 (2.7, -1.9291) on the curve f2. There are g3 (2.5, -2.1193) and g4 (2.7, -2.7151) on the curve f1. In the frequency band 2.5-2.7GHz, the total system efficiency of the antenna assembly 100 in the curve f2 is greater than the total system efficiency of the antenna assembly 100 in the curve f1. Furthermore, the setting of the fifth switch SW5 or the combination of the fifth switch SW5 and the fourth capacitor C5 can make The overall system efficiency of the antenna assembly 100 is improved. In some embodiments, the antenna assembly 100 may be configured to operate on a carrier aggregation frequency band (such as LTE Band 41 (LTE B41) frequency band or NR-5G N41 frequency band or LTE Band 41 (LTE B41) frequency band + NR-5G N41 frequency band). Overall efficiency is improved.

In some embodiments, please refer to FIG. 12 , which is a schematic structural diagram of the second matching circuit 24 and the second feed source 25 in the embodiment shown in FIG. 1 . The second matching circuit 24 may include a fifth inductor L6 with one connection end connected to the second feed point 23 and the other connection end connected to ground. The sixth inductor L7 is connected to the source 25 and the fifth capacitor C6 has one connection end connected to the other connection end of the sixth inductor L7 and the other connection end connected to the ground. In some embodiments, the inductance of the fifth inductor L6 is 3.9 nH. In some embodiments, the inductance of the sixth inductor L7 is 6.2nH. In some embodiments, the capacitance of the fifth capacitor C6 is 2.5 pF.

Next, an electronic device is described, which can install the antenna assembly 100 in the above embodiment. The electronic device may be any one of a plurality of electronic devices including, but not limited to, cellular phones, smart phones, other wireless communication devices, personal digital assistants, audio players, other media players, music recorders, Video recorders, cameras, other media recorders, radios, medical equipment, calculators, programmable remote controls, pagers, netbooks, personal digital assistants (PDAs), portable multimedia players (PMP), Moving Picture Experts Group (MPEG-1 or MPEG-2), audio layer 3 (MP3) players, portable medical equipment, and digital cameras and combinations thereof.

Please refer to FIG. 13 , which is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device 200 may include a display screen 30 for displaying information, a middle frame assembly 40 for installing the display screen 30 on one side, a circuit motherboard 50 installed on the middle frame assembly 40, and a battery installed on the middle frame assembly 40. 60 and the back cover 70 snap-fitted on the other side of the middle frame assembly 40 .

In some embodiments, the electronic device 200 may include, but is not limited to, a mobile phone, an Internet device (mobile internet device, MID), an e-book, a portable play station (Play Station Portable, PSP) or a personal digital assistant (Personal Digital Assistant, PDA). and other electronic devices with communication functions.

The display screen 30 may be a liquid crystal display (LCD) or an organic light-emitting diode (OLED) display, for displaying information and images.

The material of the middle frame component 40 can be magnesium alloy, aluminum alloy, stainless steel and other metals. Of course, the material is not limited to these and can also be other materials. The middle frame assembly 40 may be placed between the display screen 30 and the back cover 70 . The middle frame assembly 40 may be used to carry the display screen 30 . The middle frame assembly 40 and the back cover 70 are snap-fitted and connected to form the outer outline of the electronic device 200 and form a receiving cavity inside. The accommodation cavity can be used to accommodate electronic components such as a camera, a circuit motherboard 50 , a battery 60 , a processor, and various types of sensors in the electronic device 200 .

The circuit mainboard 50 is installed in the accommodation cavity and can be installed at any position in the accommodation cavity. The circuit mainboard 50 may be the mainboard of the electronic device 200 . The processor of the electronic device 200 may be provided on the circuit motherboard 50 . The circuit mainboard 50 can also be integrated with one, two or more functional components such as a motor, a microphone, a speaker, a receiver, a headphone interface, a universal serial bus interface (USB interface), a camera, a distance sensor, an ambient light sensor, a gyroscope, etc. Multiple. At the same time, the display screen 30 can be connected to the circuit main board 50 .

The battery 60 is installed in the accommodation cavity and can be installed at any position in the accommodation cavity. The battery 60 can be connected to the circuit motherboard 50 so that the battery 60 can power the electronic device 200 . The circuit mainboard 50 may be provided with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 60 to various electronic components in the electronic device 200 such as the display screen 30 .

The back cover 70 can be made of the same material as the middle frame assembly 40 , and of course other materials can also be used. The back cover 70 can be integrally formed with the middle frame assembly 40 . In some embodiments, the back cover 70 can wrap the middle frame assembly 40 and carry the display screen 30 . Structures such as a rear camera hole and a fingerprint recognition module installation hole can be formed on the back cover 70 .

It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or intervening elements may also be present. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may also be intervening elements present.

Please refer to FIG. 14 , which is a schematic structural diagram of the antenna assembly 100 of the embodiment shown in FIG. 13 installed on the middle frame assembly 40 . The middle frame assembly 40 may include a base plate 41 for carrying the display screen 30 and a frame 42 surrounding the base plate 41 . The base plate 41 and the back cover 70 are arranged opposite to each other. The frame 42 can be snap-fitted to the back cover 70 . That is, the base plate 41 , the frame 42 and the back cover 70 form a surrounding cavity.

The substrate 41 can be a conductive metal, and of course it can also be made of other materials. A ground plane and a feed source can be provided on the substrate 41 . In some embodiments, the ground plane and the feed source may not be disposed on the substrate 41 but directly on the circuit mainboard 50 .

The frame 42 may be made of conductive metal, so the frame 42 may also be called a “metal frame”. Of course, the frame 42 can also be made of other materials. The frame 42 may include a first frame 421, a second frame 422, a third frame 423 and a fourth frame 424 connected end to end. The first frame 421 , the second frame 422 , the third frame 423 and the fourth frame 424 are arranged around the substrate 41 and can be connected and fixed with the substrate 41 .

In some embodiments, the first frame 421 , the second frame 422 , the third frame 423 and the fourth frame 424 are surrounded by a rounded rectangle. Of course, other shapes such as circles and triangles are also possible. In some embodiments, the first frame 421 and the third frame 423 are arranged oppositely, and the second frame 422 and the fourth frame 424 are arranged oppositely.

The middle frame assembly 40 and the back cover 70 may form a housing assembly. The housing assembly may not be limited to the middle frame assembly 40 and the back cover 70 . The antenna assembly 100 can be installed on the housing assembly by fitting, bonding, snapping, snapping, welding, etc.

In some embodiments, antenna assembly 100 may be formed from a housing assembly. For example, the antenna assembly 100 may be made of a frame 42 such as a first frame 421 and a second frame 422 .

Please refer to FIG. 14 again, a gap 43 is provided between the second frame 422 and the substrate 41 . The gap 43 may be extended toward the first frame 421 in the extending direction of the second frame 422 . The gap 43 may be extended in the extending direction of the first frame 421 to be formed between the first frame 421 and the substrate 41 .

The second frame 422 is provided with a slit 431 and a slit 432 connected to the gap 43 so as to form the first radiator 10 of the antenna assembly 100 between the slit 431 and the slit 432 .

The first frame 421 is provided with a gap 433 connected with the gap 43 , so that the frame 42 forms the second radiator 20 of the antenna assembly 100 between the gap 431 and the gap 433 .

In this application, the first radiator 10 uses the second frame 422, which can reduce the use of the first frame 421 and can effectively improve the performance loss of the antenna assembly 100 by human hands. Specifically, the length of the second frame 422 used by the first radiator 10 needs to be It can be adjusted according to the model of the hand mold and the resonance requirement length of the required frequency band.

It is understood that the extension length of the gap 43 can be determined as needed. In some embodiments, the gap 43 may not extend in the extension direction of the second frame 422 , that is, it may not be provided between the second frame 422 and the substrate 41 . In some embodiments, the gap 43 may not extend in the extending direction of the first frame 421 , that is, it may not extend between the first frame 421 and the substrate 41 .

In addition, the positions of the

slits

431, 432, and 433 can be adjusted according to needs and the length of the frame, and will not be described again.

The tuning control circuit 27 in the antenna assembly 100 may be connected to a ground plane on the substrate 41 or the circuit board 50 for grounding.

The first feed source 15 in the antenna assembly 100 may be a feed source on the substrate 41 or the circuit main board 50 .

The ground point 11 in the antenna assembly 100 can be connected to the ground plane on the substrate 41 or the circuit main board 50 to be grounded.

The second feed source 25 in the antenna assembly 100 may be a feed source on the substrate 41 or the circuit main board 50 .

It can be understood that in order to stabilize the connection strength between the base plate 41 and the frame 42 . Insulating materials such as resin can be filled between the

gaps

43 , 431 , 432 and 433 to realize that the first radiator 10 and the second radiator 20 in the antenna assembly 100 are part of the frame 42 , which further improves the electronic equipment. 200 appearance performance.

Next, an electronic device is described. Please refer to FIG. 15 . FIG. 15 is a schematic structural diagram of an electronic device 300 in an embodiment of the present application. The electronic device 300 can be a mobile phone, a tablet computer, a notebook computer, a wearable device, etc. In this embodiment, a mobile phone is used as an example. The structure of the electronic device 300 may include an RF circuit 310 (such as the antenna assembly 100 in the above embodiment), a memory 320, an input unit 330, a display unit 340 (such as the display screen 30 in the above embodiment), a sensor 350, and an audio circuit. 360, WiFi module 370, processor 380 and power supply 390 (such as the battery 60 in the above embodiment), etc. Among them, the RF circuit 310, the memory 320, the input unit 330, the display unit 340, the sensor 350, the audio circuit 360 and the WiFi module 370 are respectively connected to the processor 380. The power supply 390 is used to provide power to the entire electronic device 300 .

Specifically, the RF circuit 310 is used to receive and receive signals. The memory 320 is used to store data instruction information. The input unit 330 is used to input information, and may specifically include a touch panel 3301 and other input devices 3302 such as operation keys. The display unit 340 may include a display panel 3401 and the like. Sensors 350 include infrared sensors, laser sensors, position sensors, etc., and are used to detect user proximity signals, distance signals, etc. The speaker 3601 and the microphone (or microphone, or receiver component) 3602 are connected to the processor 380 through the audio circuit 360 for receiving and receiving sound signals. The WiFi module 370 is used to receive and transmit WiFi signals. The processor 380 is used to process data information of the electronic device.

In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways. For example, the device implementation described above is only illustrative. For example, the division of modules or units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be combined or can be integrated into another system, or some features can be ignored, or not implemented.

A unit described as a separate component may or may not be physically separate. A component shown as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above integrated units can be implemented in the form of hardware or software functional units.

The above are only examples of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present application, or directly or indirectly used in other related The technical fields are all equally included in the scope of patent protection of this application.

Claims

An antenna component, including:

A first radiator includes a ground point and a first free end, and the first radiator has a first feed point for receiving the first excitation signal;

The second radiator includes a second free end and a third free end. The third free end is spaced apart from the first free end for capacitive coupling. The second radiator has a tuning control point and is used for receiving. a second feed point of the second excitation signal, the second feed point being disposed between the tuning control point and the second free end; and

A tuning control circuit connected to the tuning control point, the tuning control circuit configured to adjust the mid-to-high frequency band resonance generated by the first excitation signal stimulating the first radiator and/or the second radiator. mode and a low-frequency band resonance mode generated by exciting the first radiator and/or the second radiator with the second excitation signal;

Wherein, the mid-to-high frequency band resonance mode at least includes the Long Term Evolution LTE mid-to-high frequency band resonance mode and the New Radio NR mid-to-high frequency band resonance mode, and the low-frequency band resonance mode at least includes the LTE low-frequency band resonance mode and the NR low-frequency band resonance mode.
The antenna assembly of claim 1, wherein the tuning control circuit is configured to adjust the mid-to-high frequency band resonance mode to support at least one of the following operations:

Carrier aggregation CA in NR mid- and high-frequency bands;

CA for LTE mid- and high-frequency bands; and

Dual connectivity ENDC for LTE mid-high frequency band and NR mid-high frequency band.
The antenna assembly according to claim 2, wherein the CA of the NR mid-to-high frequency band includes the CA of the N1 frequency band and the N41 frequency band, the CA of the N1 frequency band and the N78 frequency band, the CA of the N3 frequency band and the N41 frequency band, and the CA of the N3 frequency band and the N78 frequency band. At least one of the CAs.
The antenna assembly according to claim 2, wherein the ENDC of the LTE mid-high frequency band and the NR mid-high frequency band include the ENDC of the LTE B1 frequency band and the N41 frequency band, the ENDC of the LTE B3 frequency band and the N41 frequency band, the LTE B39 frequency band and the N41 frequency band At least one of the ENDC of LTE B1 band and N78 band, the ENDC of LTE B3 band and N78 band, the ENDC of LTE B39 band and N78 band.
The antenna assembly according to claim 2, wherein the CA of the LTE mid-to-high frequency band includes the CA of the LTE B1 frequency band and the LTE B3 frequency band and/or the CA of the frequency band LTE B1 frequency band, the LTE B3 frequency band, and the LTE B7 frequency band.
The antenna assembly according to claim 1, wherein the LTE medium and high frequency bands include LTE B1 band, LTE B3 band, LTE B4 band, LTE B7 band, LTE B38 band, LTE B39 band, LTE B40 band and LTE B41 band at least one of;

The NR mid-to-high frequency band includes at least one of N1 frequency band, N3 frequency band, N40 frequency band, N41 frequency band and N78 frequency band.
The antenna assembly according to claim 1, wherein the mid-to-high frequency band resonant mode includes at least one of a first resonant mode, a second resonant mode, a third resonant mode and a fourth resonant mode, the first resonant mode The resonant current under the second resonant mode is distributed between the ground point and the first feed point, and the resonant current under the second resonant mode is distributed between the third free end and the tuning control point. The resonant current in the third resonant mode is distributed between the third free end and the second free end, and the resonant current in the fourth resonant mode is distributed between the first free end and the first feed between electrical points.
The antenna assembly according to claim 1, wherein the LTE low-frequency band includes LTE B5 band, LTE B8 band, LTE B12 band, LTE B17 band, LTE B18 band, LTE B19 band, LTE B20 band, LTE B26 band and At least one of the LTE B28 frequency bands;

The NR low frequency band includes at least one of N5 frequency band, N8 frequency band, N20 frequency band and N28 frequency band.
The antenna assembly according to claim 1, wherein the low-frequency band resonance mode includes a fifth resonance mode, and the resonance current in the fifth resonance mode is distributed between the third free end and the second feed point between.
The antenna assembly according to claim 1, wherein the low-frequency band resonance mode includes a sixth resonance mode, and the resonance current in the sixth resonance mode is distributed between the third free end and the second free end. between.
The antenna assembly according to any one of claims 1-10, wherein the tuning control circuit is grounded, and the tuning control circuit includes a switch control unit and/or an adjustable capacitor.
The antenna assembly according to any one of claims 1-10, wherein the tuning control circuit includes:

A first resistor has a connecting end connected to the tuning control point;

The first inductor has one connection end connected to the other connection end of the first resistor, and the other connection end is connected to ground;

The first branch and the second branch, each of the first branch and the second branch includes:

A first switch has a connection end connected to the other connection end of the first resistor;

The second resistor has one connection end connected to the other connection end of the first switch;

The second switch has one connection end connected to the other connection end of the first switch, and the other connection end is grounded; and

The first capacitor has one connection end connected to the other connection end of the second resistor, and the other connection end is connected to ground; and

The third branch and the fourth branch, each said third branch and the fourth branch include:

A third switch has a connection end connected to the other connection end of the first resistor;

A third resistor has a connection end connected to the other connection end of the third switch;

The fourth switch has one connection end connected to the other connection end of the third switch, and the other connection end is grounded; and

The second inductor has one connection end connected to the other connection end of the third resistor, and the other connection end is connected to ground.
The antenna assembly according to any one of claims 1-10, wherein the antenna assembly further includes:

A first matching circuit, a connecting end connected to the first feed point; and

A first feed source is connected to the other connection end of the first matching circuit and is used to generate the first excitation signal.
The antenna assembly of claim 13, wherein the first matching circuit includes:

The third inductor has one connection end connected to the first feed point and the other connection end connected to ground;

The second capacitor has a connection end connected to the first feed point;

A third capacitor has a connection end connected to the other connection end of the second capacitor, and the other connection end is connected to the first feed source; and

The fourth inductor has a connection end connected to the other connection end of the second capacitor, and the other connection end is connected to the first feed source.
The antenna assembly of claim 14, wherein the first matching circuit includes:

The fourth capacitor has a connection end connected to the first feed point; and

The fifth switch has one connection end connected to the other connection end of the fourth capacitor, and the other connection end connected to the other connection end of the second capacitor.
The antenna assembly according to any one of claims 1, wherein the antenna assembly further includes:

The second matching circuit has a connecting end connected to the second feed point; and

The second feed source is connected to the other connection end of the second matching circuit and is used to generate the second excitation signal.
The antenna assembly of claim 16, wherein the second matching circuit includes:

The fifth inductor has one connection end connected to the second feed point and the other connection end connected to ground;

The sixth inductor has one connection end connected to the second feed point, and the other connection end connected to the second feed source; and

The fifth capacitor has one connection end connected to the other connection end of the sixth inductor, and the other connection end is connected to ground.
A middle frame component, which includes:

substrate;

a frame, arranged on the edge of the substrate; and

The antenna assembly according to any one of claims 1-17, is arranged on the frame.
An electronic device, including:

display screen;

a housing assembly for mounting the display screen; and

The antenna assembly according to any one of claims 1-17, is provided in the housing assembly.