Antenna Assemblies and Electronic Devices

Abstract

The present application provides an antenna assembly and an electronic device. The antenna assembly includes a first and a second antenna, the first antenna includes a first radiator, a first signal source and a first frequency-selective filter circuit, the second antenna includes a second radiator, a second signal source, and a second frequency-selective filter circuit, the first and second radiators are arranged at intervals and coupled to each other, the first signal source is electrically connected to the first frequency-selective filter circuit to the first radiator, the second signal source is electrically connected to the second frequency-selective filter circuit to the second radiator, the first antenna is used to generate at least one resonant mode, the second antenna is used to generate at least two resonant modes, the at least two resonant modes of the second antenna are used to cover the transmission and reception of electromagnetic wave signals in the first frequency band, the second frequency band and the third frequency band, and at least one resonant mode of the second antenna is generated by the capacitive coupling feeding excitation between the first antenna and the second antenna. The antenna assembly of the present application has a good communication effect.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an antenna assembly and an electronic device. Background Art

[0002] 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 realize the communication function of electronic devices. However, the communication performance of antenna components in electronic devices in related technologies is not good enough and there is still room for improvement. Summary of the invention

[0003] In a first aspect, the present application provides an antenna assembly. The antenna assembly comprises:

[0004] A first antenna and a second antenna, wherein the first antenna comprises a first radiator, a first signal source, and a first frequency-selective filter circuit, and the second antenna comprises a second radiator, a second signal source, and a second frequency-selective filter circuit;

[0005] The first radiator and the second radiator are spaced apart and coupled to each other, one end of the first radiator facing away from the second radiator is grounded, the first signal source is electrically connected to the first frequency selection filter circuit and the first radiator, one end of the second radiator facing away from the first radiator is grounded, and the second signal source is electrically connected to the second frequency selection filter circuit and the second radiator;

[0006] The first antenna is used to generate at least one resonance mode, and the second antenna is used to generate at least two resonance modes. The at least two resonance modes of the second antenna are used to cover the reception and transmission of electromagnetic wave signals in the first frequency band, the second frequency band and the third frequency band. At least one resonance mode of the second antenna is generated by capacitive coupling feeding excitation between the first antenna and the second antenna.

[0007] In a second aspect, the present application further provides an electronic device, comprising the antenna assembly as described in the first aspect.

[0008] The second antenna in the antenna assembly provided in the present application can not only transmit and receive electromagnetic wave signals in the first frequency band, but also transmit and receive electromagnetic wave signals in the second frequency band and at least one of electromagnetic wave signals in the third frequency band. Therefore, the antenna assembly has a better communication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the implementation will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0010] Figure 1 A schematic diagram of an antenna assembly provided in accordance with an embodiment of the present application.

[0011] Figure 2 for Figure 1 A schematic diagram of an antenna assembly provided in one embodiment.

[0012] Figure 3-Figure 10 Schematic diagrams of sub-frequency selective filtering circuits provided for various implementations.

[0013] Fig.11 A schematic diagram of an antenna assembly provided in accordance with another embodiment of the present application.

[0014] Fig.12 A schematic diagram of an antenna assembly provided in yet another embodiment of the present application.

[0015] Fig.13 A schematic diagram of an antenna assembly provided in yet another embodiment of the present application.

[0016] Fig.14 FIG. 4 is a schematic diagram of RL curves of a first antenna and a second antenna in an antenna assembly in one embodiment.

[0017] Fig.15 Schematic diagram of the main current distribution corresponding to mode a.

[0018] Fig.16 Schematic diagram of the main current distribution corresponding to mode b.

[0019] Fig.17 Schematic diagram of the main current distribution corresponding to mode c.

[0020] Fig.18 is the main current distribution corresponding to mode d.

[0021] Fig.19 is the main current distribution corresponding to mode e.

[0022] Fig. 20 is the main current distribution corresponding to mode f.

[0023] Fig.21 A three-dimensional structural diagram of an electronic device provided in one embodiment of the present application.

[0024] Fig. 22 An implementation method provided Fig.21 Cross-sectional view of line II.

[0025] Fig.23 It is a top view of a metal frame in one embodiment of the present application.

[0026] Fig.24 This is a top view of a metal frame in another embodiment of the present application.

[0027] Fig.25 FIG. 4 is a schematic diagram of the positions of a first radiator and a second radiator in an electronic device in one embodiment.

[0028] Fig.26 FIG. 4 is a schematic diagram of the positions of the first radiator and the second radiator in the electronic device in another embodiment. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0030] Reference to "embodiment" or "implementation" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment or implementation may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0031] The present application provides an antenna assembly 10. The antenna assembly 10 can be applied to an electronic device 1, which includes but is not limited to a mobile phone, a mobile internet device (MID), an e-book, a portable player station (Play Station Portable, PSP) or a personal digital assistant (Personal Digital Assistant, PDA) and other electronic devices 1 with communication functions.

[0032] See also Figure 1 , Figure 1A schematic diagram of an antenna assembly provided in one embodiment of the present application. The antenna assembly 10 includes a first antenna 110 and a second antenna 120. The first antenna 110 includes a first radiator 111, a first signal source 112, and a first frequency-selective filter circuit 113. The second antenna 120 includes a second radiator 121, a second signal source 122, and a second frequency-selective filter circuit 123. The first radiator 111 and the second radiator 121 are spaced apart and coupled to each other. One end of the first radiator 111 facing away from the second radiator 121 is grounded, the first signal source 112 is electrically connected to the first frequency-selective filter circuit 113 and the first radiator 111, one end of the second radiator 121 facing away from the first radiator 111 is grounded, and the second signal source 122 is electrically connected to the second frequency-selective filter circuit 123 and the second radiator 121. The first antenna 110 is used to generate at least one resonant mode, and the second antenna 120 is used to generate at least two resonant modes. The at least two resonant modes of the second antenna 120 are used to cover the reception and transmission of electromagnetic wave signals in the first frequency band, the second frequency band and the third frequency band. At least one resonant mode of the second antenna 120 is generated by capacitive coupling feeding excitation between the first antenna 110 and the second antenna 120.

[0033] In addition, it should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0034] Combine the following Fig.14 and Figure 15-20 The resonance modes of the first antenna 110 and the second antenna 120 are described. The first antenna 110 has a first resonance mode, a second resonance mode, and a third resonance mode. The second antenna 120 has a fourth resonance mode, a fifth resonance mode, and a sixth resonance mode. The first resonance mode, the second resonance mode, the third resonance mode, the fourth resonance mode, the fifth resonance mode, and the sixth resonance mode jointly cover the transmission and reception of electromagnetic wave signals in the medium and high frequency (MHB) and ultra-high frequency (UHB) frequency bands. The resonance mode here is also called a resonance mode. The frequency band range of the MHB is 1000MHz-3000MHz, and the frequency band range of the UHB is 3000MHz-6000MHz.

[0035] The first frequency selection filter circuit 113 and the second frequency selection filter circuit 123 are used to adjust the resonant frequency of the first antenna 110 according to a preset first frequency selection parameter so that the first antenna 110 resonates in the first resonant mode, the second resonant mode and the third resonant mode, wherein, in the first resonant mode, the first antenna 110 is used to transmit and receive electromagnetic wave signals in a fourth frequency band; in the second resonant mode, the first antenna 110 is used to transmit and receive electromagnetic wave signals in a fifth frequency band; in the third resonant mode, the first antenna 110 is used to transmit and receive electromagnetic wave signals in sixth and seventh frequency bands.

[0036] In one embodiment, the first frequency selection filter circuit 113 and the second frequency selection filter circuit 123 are used to adjust the resonant frequency of the second antenna 120 according to a preset second frequency selection parameter so that the second antenna 120 resonates in the fourth resonant mode, the fifth resonant mode, and the sixth resonant mode, wherein in the fourth resonant mode, the second antenna 120 is used to transmit and receive electromagnetic wave signals in the first frequency band; in the fifth resonant mode, the second antenna 120 is used to transmit and receive electromagnetic wave signals in the second and third frequency bands; in the sixth resonant mode, the second antenna 120 is used to transmit and receive electromagnetic wave signals in the eighth frequency band.

[0037] In this embodiment, the first frequency band includes the N78 frequency band (3.3GHz to 3.8GHz), the second frequency band includes the N77 frequency band (3.3GHz to 4.2GHz), the third frequency band includes the N79 frequency band (4.4GHz to 5.0GHz), and the eighth frequency band includes the WIFI 5G frequency band (5.725GHz to 5.825GHz). The fourth frequency band includes the GPS-L1 frequency band, the fifth frequency band includes the LTE MHB frequency band, the sixth frequency band includes the WIFI 2.4G frequency band, and the seventh frequency band includes the N41 frequency band (2496MHz-2690MHz).

[0038] The first radiator 111 is a flexible printed circuit (FPC) antenna radiator, or a laser direct structuring (LDS) antenna radiator, or a print direct structuring (PDS) antenna radiator, or a metal branch; the second radiator 121 is an FPC antenna radiator, or an LDS antenna radiator, or a PDS antenna radiator, or a metal branch.

[0039] When the first signal source 112 is directly electrically connected to the first radiator 111, and the second signal source 122 is directly electrically connected to the second radiator 121, the second antenna 120 can receive and transmit electromagnetic wave signals in the first frequency band, but cannot receive and transmit electromagnetic wave signals in the second and third frequency bands. When the first frequency selection filter circuit 113 and the second frequency selection filter circuit 123 are added, the first signal source 112 is electrically connected to the first frequency selection filter circuit 113 to the first radiator 111, and the second signal source 122 is electrically connected to the second frequency selection filter circuit 123 to the second radiator 121, by setting the frequency selection parameters (including resistance value, inductance value and capacitance value) of the first frequency selection filter circuit 113 and the frequency selection parameters (including resistance value, inductance value and capacitance value) of the second frequency selection filter circuit 123, the second antenna 120 can receive and transmit electromagnetic wave signals in the first frequency band, and can receive and transmit electromagnetic wave signals in at least one of the second and third frequency bands. The specific circuit forms of the first frequency-selective filter circuit 113 and the second frequency-selective filter circuit 123 will be described later. The first frequency-selective filter circuit 113 and the second frequency-selective filter circuit 123 can also be called matching circuits.

[0040] The aforementioned first signal source 112 electrically connecting the first frequency-selective filter circuit 113 to the first radiator 111 means that the first signal source 112 is electrically connected to the input end of the first frequency-selective filter circuit 113, and the output end of the first frequency-selective filter circuit 113 is electrically connected to the first radiator 111. The second signal source 122 electrically connecting the second frequency-selective filter circuit 123 to the second radiator 121 means that the second signal source 122 is electrically connected to the input end of the second frequency-selective filter circuit 123, and the output end of the second frequency-selective filter circuit 123 is electrically connected to the second radiator 121.

[0041] The first signal source 112 is used to generate a first excitation signal, and the first excitation signal is loaded on the first radiator 111 via the first frequency selection filter circuit 113, so that the first radiator 111 radiates an electromagnetic wave signal. The second signal source 122 is used to generate a second excitation signal, and the second excitation signal is loaded on the second radiator 121 via the second frequency selection filter circuit 123, so that the second radiator 121 radiates an electromagnetic wave signal. The first radiator 111 and the second radiator 121 are arranged at intervals and coupled to each other, that is, the first radiator 111 and the second radiator 121 have a common aperture. When the antenna assembly 10 is working, the second excitation signal generated by the second signal source 122 can be coupled to the first radiator 111 via the second radiator 121. In other words, when the second antenna 120 is working, it can not only use the second radiator 121 but also use the first radiator 111 in the first antenna 110 to send and receive electromagnetic wave signals, so that the second antenna 120 can work in a wider frequency band. Similarly, the first radiator 111 and the second radiator 121 are arranged at intervals and coupled to each other. When the antenna assembly 10 is working, the first excitation signal generated by the first signal source 112 can also be coupled to the second radiator 121 via the first radiator 111. In other words, when the first antenna 110 is working, it can not only use the first radiator 111 but also use the second radiator 121 in the second antenna 120 to send and receive electromagnetic wave signals, so that the first antenna 110 can work in a wider frequency band. Since the first antenna 110 can not only use the first radiator 111 but also the second radiator 121 when working, and the second antenna 120 can not only use the second radiator 121 but also the first radiator 111 when working, the multiplexing of radiators and the multiplexing of spaces can be realized, which is conducive to reducing the size of the antenna assembly 10.

[0042] In the related art, the second antenna 120 can only transmit and receive electromagnetic wave signals in the first frequency band, but does not support electromagnetic wave signals in the second frequency band or the third frequency band. If it is necessary to support electromagnetic wave signals in the second frequency band, an additional antenna needs to be set to support electromagnetic wave signals in the second frequency band; if it is necessary to support electromagnetic wave signals in the third frequency band, an additional antenna needs to be set to support electromagnetic wave signals in the third frequency band. It can be seen that in the related art, more antennas are required to support electromagnetic wave signals in the first frequency band, the second frequency band, and the third frequency band, which leads to a larger volume of the antenna assembly 10. In the antenna assembly 10 in this embodiment, there is no need to set an additional antenna to support electromagnetic wave signals in the second frequency band and electromagnetic wave signals in the third frequency band, so the volume of the antenna assembly 10 is small. Setting an additional antenna to support electromagnetic wave signals in the second frequency band and setting an additional antenna to support electromagnetic wave signals in the third frequency band can also lead to a higher cost of the antenna assembly 10; when the antenna assembly 10 is applied to the electronic device 1, it increases the difficulty of stacking the antenna assembly 10 with other devices. In this embodiment, the antenna assembly does not need to set up additional antennas to support the electromagnetic wave signals of the second frequency band and the electromagnetic wave signals of the third frequency band. Therefore, the cost of the antenna assembly 10 is low; when the antenna module is applied to the electronic device 1, the stacking difficulty is low. In addition, setting up additional antennas to support electromagnetic wave signals of the second frequency band and setting up additional antennas to support electromagnetic wave signals of the third frequency band may also increase the RF link insertion loss of the antenna assembly 10. In the present application, when the second antenna 120 is capable of transmitting and receiving electromagnetic wave signals of the first frequency band, and electromagnetic wave signals of at least one of the second frequency band and the third frequency band, the RF link insertion loss can be reduced.

[0043] When the antenna assembly 10 is applied to the electronic device 1 (see Fig.21 , 22 ), the first signal source 112 may be arranged on a circuit board 50 (see Fig.21 , 22 ). The second signal source 122 may also be disposed on a circuit board 50 in the electronic device 1. The first frequency-selective filter circuit 113 may be disposed on a circuit board 50 in the electronic device 1. The second frequency-selective filter circuit 123 may be disposed on a circuit board 50 in the electronic device 1.

[0044] In this embodiment, the configuration of the first frequency selection filter circuit 113 and the second frequency selection filter circuit 123 can help the second antenna 120 to receive and transmit electromagnetic wave signals in the second frequency band and electromagnetic wave signals in the third frequency band on the basis of originally receiving and transmitting electromagnetic wave signals in the first frequency band. Furthermore, the first frequency selection filter circuit 113 and the second frequency selection filter circuit 123 are also used to isolate the first antenna 110 and the second antenna 120. In other words, the first frequency selection filter circuit 113 and the second frequency selection filter circuit 123 can also isolate the electromagnetic wave signals received and transmitted by the first antenna 110 and the electromagnetic wave signals received and transmitted by the second antenna 120 from interfering with each other.

[0045] Please also read Figure 2 , Figure 2 for Figure 1 A schematic diagram of an antenna assembly provided in an embodiment of the present invention. In this embodiment, the first frequency-selective filter circuit 113 includes one or more sub-frequency-selective filter circuits 113a, and the second frequency-selective filter circuit 123 includes one or more sub-frequency-selective filter circuits 113a, and the sub-frequency-selective filter circuits 113a are also used to isolate the first antenna 110 and the second antenna 120. In the schematic diagram of this embodiment, the first frequency-selective filter circuit 113 includes two sub-frequency-selective filter circuits 113a connected in parallel, and the second frequency-selective filter circuit 123 includes two sub-frequency-selective filter circuits 113a connected in series. Each sub-frequency-selective filter circuit 113a in the first frequency-selective filter circuit 113 and each sub-frequency-selective filter circuit 113a in the second frequency-selective filter circuit 123 can isolate the first antenna 110 and the second antenna 120. In other words, each sub-frequency selective filter circuit 113a in the first frequency selective filter circuit 113 and each sub-frequency selective filter circuit 113a in the second frequency selective filter circuit 123 can make the electromagnetic wave signal received and transmitted by the first antenna 110 and the electromagnetic wave signal received and transmitted by the second antenna 120 not interfere with each other. It should be noted that the sub-frequency selective filter circuit 113a in the first frequency selective filter circuit 113 can be the same as or different from the sub-frequency selective filter circuit 113a in the second frequency selective filter circuit 123. When the first frequency selective filter circuit 113 includes a plurality of sub-frequency selective filter circuits 113a, the relationship between the plurality of sub-frequency selective filter circuits 113a can be connected in series, in parallel, etc. When the second frequency selective filter circuit 123 includes a plurality of sub-frequency selective filter circuits 113a, the relationship between the plurality of sub-frequency selective filter circuits 113a can be connected in series, in parallel, etc. Each sub-frequency selective filter circuit 113a is described in detail as follows.

[0046] Please also read Figures 3 to 10 , Figure 3-Figure 10Schematic diagrams of sub-frequency selective filtering circuits provided in various embodiments. The sub-frequency selective filtering circuit 113a includes one or more of the following circuits.

[0047] Please also read Figure 3 ,exist Figure 3 In the embodiment, the sub-frequency selective filter circuit 113a includes a bandpass circuit formed by connecting the inductor L0 and the capacitor C0 in series.

[0048] Please also read Figure 4 ,exist Figure 4 In the embodiment, the sub-frequency selective filtering circuit 113a includes a band-stop circuit formed by connecting an inductor L0 and a capacitor C0 in parallel.

[0049] See also Figure 5 ,exist Figure 5 In the embodiment, the sub-frequency selective filter circuit 113a includes an inductor L0, a first capacitor C1, and a second capacitor C2. The inductor L0 is connected in parallel with the first capacitor C1, and the second capacitor C2 is electrically connected to a node where the inductor L0 and the first capacitor C1 are electrically connected.

[0050] Please also read Figure 6 ,exist Figure 6 In the embodiment, the sub-frequency selective filter circuit 113a includes a capacitor C0, a first inductor L1, and a second inductor L2. The capacitor C0 is connected in parallel with the first inductor L1, and the second inductor L2 is electrically connected to a node where the capacitor C0 and the first inductor L1 are electrically connected.

[0051] Please also read Figure 7 ,exist Figure 7 In the embodiment, the sub-frequency selective filter circuit 113a includes an inductor L0, a first capacitor C1, and a second capacitor C2. The inductor L0 is connected in series with the first capacitor C1, and one end of the second capacitor C2 is electrically connected to the first end of the inductor L0 that is not connected to the first capacitor C1, and the other end of the second capacitor C2 is electrically connected to the end of the first capacitor C1 that is not connected to the inductor L0.

[0052] Please also read Figure 8 ,exist Figure 8 In the embodiment, the sub-frequency selective filter circuit 113a includes a capacitor C0, a first inductor L1, and a second inductor L2. The capacitor C0 is connected in series with the first inductor L1, one end of the second inductor L2 is electrically connected to an end of the capacitor C0 that is not connected to the first inductor L1, and the other end of the second inductor L2 is electrically connected to an end of the first inductor L1 that is not connected to the capacitor C0.

[0053] Please also read Fig. 9 ,exist Fig. 9In the embodiment, the sub-frequency selective filter circuit 113a includes a first capacitor C1, a second capacitor C2, a first inductor L1, and a second inductor L2. The first capacitor C1 is connected in parallel with the first inductor L1, the second capacitor C2 is connected in parallel with the second inductor L2, and one end of the whole formed by the second capacitor C2 and the second inductor L2 in parallel is electrically connected to one end of the whole formed by the first capacitor C1 and the first inductor L1 in parallel.

[0054] Please also read Fig.10 ,exist Fig.10 In the embodiment, the sub-frequency selective filtering circuit 113a includes a first capacitor C1, a second capacitor C2, a first inductor L1, and a second inductor L2. The first capacitor C1 and the first inductor L1 are connected in series to form a first unit 113b. The second capacitor C2 and the second inductor L2 are connected in series to form a second unit 113c. The first unit 113b and the second unit 113c are connected in parallel.

[0055] See also Fig.11 , Fig.11 A schematic diagram of an antenna assembly provided in another embodiment of the present application. In this embodiment, the excitation signal generated by the second signal source 122 passes through the second frequency-selective filter circuit 123 and is then capacitively coupled and fed to the second radiator 121 .

[0056] In one embodiment, the output end of the second frequency-selective filter circuit 123 is electrically connected to one end of a coupling capacitor C3, and one end of the coupling capacitor C3 is electrically connected to the second radiator 121. The excitation signal (i.e., the second excitation signal) generated by the second signal source 122 passes through the second frequency-selective filter circuit 123 and is then fed to the second radiator 121 through the coupling capacitor C3. In another embodiment, a coupling capacitor C3 is formed between the output end of the second frequency-selective filter circuit 123 and the second radiator 121, and the excitation signal (i.e., the second excitation signal) generated by the second signal source 122 passes through the second frequency-selective filter circuit 123 and is then fed to the second radiator 121 through the coupling capacitor C3.

[0057] After the excitation signal generated by the second signal source 122 passes through the second frequency-selective filter circuit 123 , it is capacitively coupled and fed to the second radiator 121 , so that the electromagnetic wave signal received and transmitted by the second antenna 120 has a higher efficiency bandwidth.

[0058] It can be understood that in other embodiments, the excitation signal generated by the second excitation source is directly coupled to the second radiator 121 after passing through the second frequency selection filter circuit 123. Specifically, the second excitation source is electrically connected to the input end of the second frequency selection filter circuit 123, and the output end of the second frequency selection filter circuit 123 is directly electrically connected to the second radiator 121.

[0059] See also Fig.12 , Fig.12 A schematic diagram of an antenna assembly provided for another embodiment of the present application. The first radiator 111 includes a first sub-radiator 1111, a second sub-radiator 1112, and a third sub-radiator 1113. The first sub-radiator 1111, the second sub-radiator 1112, and the third sub-radiator 1113 are bent and connected in sequence, and the first sub-radiator 1111 and the third sub-radiator 1113 are both located on the same side of the second sub-radiator 1112. The first sub-radiator 1111 has a first grounding terminal G1 away from the second sub-radiator 1112, and the first grounding terminal G1 is grounded. The second sub-radiator 1112 has a first feeding point P1, and the first feeding point P1 is electrically connected to the first frequency-selective filter circuit 112. The third sub-radiator 1113 has a first free end F1 away from the second sub-radiator 1112, and the first free end F1 is arranged adjacent to the second radiator 121.

[0060] The second radiator 121 includes a fourth sub-radiator 1211 and a fifth sub-radiator 1212. The fourth sub-radiator 1211 is connected to the fifth sub-radiator 1212 by bending, and the fourth sub-radiator 1211 has a second free end F2 away from the fifth sub-radiator 1212, and the second free end F2 is spaced apart from the first radiator 111. In this embodiment, the second free end F2 is spaced apart from an end of the third sub-radiator 1113 in the first radiator 111 away from the second sub-radiator 1112. The fifth sub-radiator 1212 has a second feeding point P2, and the second feeding point P2 is electrically connected to the second frequency selection filter circuit 123. The fifth sub-radiator 1212 has a second grounding end G2 away from the fourth sub-radiator 1211, and the second grounding end G2 is grounded.

[0061] This structural arrangement of the first radiator 111 and the second radiator 121 can facilitate the arrangement of the antenna assembly 10 corresponding to the corner of the electronic device 1. When the antenna assembly 10 is arranged corresponding to the corner of the electronic device 1, the antenna assembly 10 is difficult for the user to hold when using the electronic device 1, so that the electronic device 1 to which the antenna assembly 10 is applied can have a better communication effect.

[0062] In this embodiment, the first sub-radiator 1111, the second sub-radiator 1112, and the third sub-radiator 1113 are all rectangular long shapes for illustration. In other embodiments, the shapes of the first sub-radiator 1111, the second sub-radiator 1112, and the third sub-radiator 1113 may also be other shapes. Correspondingly, in this embodiment, the fourth sub-radiator 1211 and the fifth sub-radiator 1212 are all rectangular long shapes for illustration. In other embodiments, the shapes of the fourth sub-radiator 1211 and the fifth sub-radiator 1212 may also be other shapes.

[0063] In this embodiment, the first sub-radiator 1111 and the third sub-radiator 1113 both extend along the first direction D1, the second sub-radiator 1112 extends along the second direction D2, and the first direction D1 is perpendicular to the second direction D2. In this embodiment, the fourth sub-radiator 1211 is arranged opposite to the third sub-radiator 1113, and the fourth sub-radiator 1211 extends along the first direction D1. The fifth sub-radiator 1212 extends along the second direction D2. It can be understood that in other embodiments, the first direction D1 and the second direction D2 may not be perpendicular, and the first sub-radiator 1111 may not be parallel to the third sub-radiator 1113. The shapes and extension directions of the first sub-radiator 1111, the second sub-radiator 1112, and the third sub-radiator 1113 can be adjusted according to the environment in which the antenna assembly 10 is used. Correspondingly, in other embodiments, the shapes and extension directions of the fourth sub-radiator 1211 and the fifth sub-radiator 1212 may also be adjusted according to the environment in which the antenna component is used.

[0064] See also Fig.12 , the first frequency selection filter circuit 113 is electrically connected to the first feeding point P1, the first feeding point P1 of the first radiator 111 is located at the second sub-radiator 1112 or the third sub-radiator 1113, and when the first feeding point P1 on the first radiator 111 is located at different positions, the current distribution on the first radiator 111 is different.

[0065] See also Fig.13 , Fig.13A schematic diagram of an antenna assembly provided for another embodiment of the present application. In this embodiment, the first radiator 111 includes a first sub-radiator 1111 and a second sub-radiator 1112. The first sub-radiator 1111 is connected to the second sub-radiator 1112 by bending, the first sub-radiator 1111 has a first grounding terminal G1 away from the second sub-radiator 1112, the first grounding terminal G1 is grounded, and the second sub-radiator 1112 has a first free end F1 away from the first sub-radiator 1111, and the first free end F1 is arranged adjacent to the second radiator 121. The second sub-radiator 1112 has a first feeding point P1 to electrically connect to the first frequency selection filter circuit 113. The second radiator 121 includes a third sub-radiator 1113 and a fourth sub-radiator 1211, wherein the third sub-radiator 1113 is connected to the fourth sub-radiator 1211 by bending, and the third sub-radiator 1113 has a second free end F2 away from the fourth sub-radiator 1211, and the second free end F2 is spaced apart from the first free end F1. That is, the second free end F2 is spaced apart from an end of the second sub-radiator 1112 away from the first sub-radiator 1111. The third sub-radiator 1113 has a second feeding point P2 to electrically connect the second frequency-selective filter circuit 123, and the fourth sub-radiator 1211 has a second grounding end G2 away from the third sub-radiator 1113, and the second grounding end G2 is grounded.

[0066] This structural arrangement of the first radiator 111 and the second radiator 121 can facilitate the arrangement of the antenna assembly 10 corresponding to the edge of the electronic device 1. When the antenna assembly 10 is arranged corresponding to the edge (for example, the top edge) of the electronic device 1, when the user holds the side of the electronic device 1 while using the electronic device 1, the antenna assembly 10 is difficult for the user to hold, so that the electronic device 1 to which the antenna assembly 10 is applied can have a better communication effect.

[0067] In one embodiment, the second antenna 120 is also used to send and receive electromagnetic wave signals in the WIFI 5G frequency band (5.725GHz to 5.825GHz). Specifically, the frequency selection parameters (including resistance value, inductance value and capacitance value) of the first frequency selection filter circuit 113 and the frequency selection parameters (including resistance value, inductance value and capacitance value) of the second frequency selection filter circuit 123 are set, so that the second antenna 120 can send and receive electromagnetic wave signals in the first frequency band, and can send and receive electromagnetic wave signals in at least one of the second and third frequency bands, and can also send and receive electromagnetic wave signals in the WIFI 5G frequency band. It should be noted that when the second antenna 120 transmits and receives electromagnetic wave signals in the first frequency band, and can transmit and receive electromagnetic wave signals in at least one of the second and third frequency bands, and can also transmit and receive electromagnetic wave signals in the WIFI 5G frequency band, it means that the second antenna 120 can transmit and receive electromagnetic wave signals in the first frequency band, transmit and receive electromagnetic wave signals in at least one of the second and third frequency bands, and transmit and receive electromagnetic wave signals in the WIFI 5G frequency band at the same time.

[0068] In combination with the above embodiments, the length of the first radiator 111 is greater than the length of the second radiator 121 , and the frequency band of the electromagnetic wave signal received and transmitted by the first antenna 110 is lower than the frequency band of the electromagnetic wave signal received and transmitted by the second antenna 120 .

[0069] When the first radiator 111 includes a plurality of sub-radiators and the second radiator 121 includes a plurality of sub-radiators, the length of the first radiator 111 is greater than the length of the second radiator 121, which means that the sum of the lengths of the plurality of sub-radiators in the first radiator 111 is greater than the sum of the lengths of the plurality of sub-radiators in the second radiator 121. Fig.12 The first radiator 111 shown in FIG. 1 includes a first sub-radiator 1111, a second sub-radiator 1112, and a third sub-radiator 1113; the second radiator 121 includes a fourth sub-radiator 1211 and a fifth sub-radiator 1212 for illustration. For the convenience of description, the length of the first radiator 111 is marked as L. 1 , the length of the second radiator 121 is marked as L 2 , the length of the first sub-radiator 1111 is marked as L 11 , the length of the second sub-radiator 1112 is marked as L 12 The length of the third sub-radiator 1113 is marked as L 13 The length of the fourth sub-radiator 1211 is marked as L 21 The length of the fifth sub-radiator 1212 is marked as L 22 Then, we have L 1 =L11 +L12+L 13 ; L 2 =L 21 +L 22 The length of the first radiator 111 is greater than the length of the second radiator 121, that is, L 1 >L 2 In this embodiment, the length of the first radiator 111 is greater than the length of the second radiator 121, and the frequency band of the electromagnetic wave signal received and transmitted by the first antenna 110 is lower than the frequency band of the electromagnetic wave signal received and transmitted by the second antenna 120, so that the antenna assembly 10 can cover more frequency bands when working, thereby improving the communication effect of the antenna assembly 10.

[0070] It can be understood that in this embodiment, the first radiator 111 is located on the left side of the second radiator 121 as an example for illustration. In other embodiments, the position of the first radiator 111 and the position of the second radiator 121 can also be other positions, for example, the first radiator 111 is located on the right side of the second radiator 121. Alternatively, the first radiator 111 and the second radiator 121 are arranged up and down, and the first radiator 111 is located above the second radiator 121; or, the first radiator 111 and the second radiator 121 are arranged up and down, and the first radiator 111 is located below the second radiator 121. In summary, the first radiator 111 and the second radiator 121 can be flexibly arranged according to the environment in which the antenna assembly 10 is used. When the first radiator 111 is located on the right side of the second radiator 121, compared with the first radiator 111 being located on the left side of the second radiator 121, it is equivalent to that the length and feeding position of the first radiator 111 are changed, and the working frequency bands of the two are also exchanged.

[0071] Specifically, the frequency selection parameters (including resistance value, inductance value and capacitance value) of the first frequency selection filter circuit 113 and the frequency selection parameters (including resistance value, inductance value and capacitance value) of the second frequency selection filter circuit 123 are set, and the first antenna 110 is used to send and receive electromagnetic wave signals in the GPS-L1 frequency band, electromagnetic wave signals in the WIFI 2.4G frequency band, electromagnetic wave signals in the LTE MHB frequency band, and electromagnetic wave signals in the N41 frequency band (2496MHz-2690MHz).

[0072] It should be noted that the GPS mentioned here refers to positioning, including but not limited to Global Positioning System (GPS) positioning, Beidou positioning, GLONASS positioning, GALILEO positioning, etc. The WIFI 2.4G frequency band includes 2.4GHz~2.5GHz; the LTE MHB frequency band refers to the middle high band, and its frequency band range is: 1000MHz~3000MHz.

[0073] Specifically, the frequency selection parameters (including resistance value, inductance value and capacitance value) of the first frequency selection filter circuit 113 and the frequency selection parameters (including resistance value, inductance value and capacitance value) of the second frequency selection filter circuit 123 are set, so that the first antenna 110 can transmit and receive electromagnetic wave signals of the GPS-L1 frequency band, the electromagnetic wave signals of the WIFI 2.4G frequency band, the electromagnetic wave signals of the LTE MHB frequency band, and the electromagnetic wave signals of the N41 frequency band, that is, the first antenna 110 can support more frequency bands. It should be noted that when the first antenna 110 transmits and receives electromagnetic wave signals of the GPS-L1 frequency band, the electromagnetic wave signals of the WIFI 2.4G frequency band, the electromagnetic wave signals of the LTE MHB frequency band, and the electromagnetic wave signals of the N41 frequency band, the first antenna 110 can transmit and receive electromagnetic wave signals of the GPS-L1 frequency band, the electromagnetic wave signals of the WIFI 2.4G frequency band, the electromagnetic wave signals of the LTE MHB frequency band, and the electromagnetic wave signals of the N41 frequency band at the same time.

[0074] In combination with the antenna assembly 10 described in each of the above embodiments, the size d of the gap between the first radiator 111 and the second radiator 121 is: 0.5mm≤d≤2.0mm. Figure 1 ,exist Figure 1 The dimension d is shown in the figure. The gap dimension d between the first radiator 111 and the second radiator 121 is selected to be in the above range, so as to ensure a good coupling effect between the first radiator 111 and the second radiator 121. Further optionally, 0.5 mm ≤ d ≤ 1.5 mm, so that the coupling between the first radiator 111 and the second radiator 121 is higher and better.

[0075] The following is an example in which the first antenna 110 is used to send and receive electromagnetic wave signals in the GPS-L1 frequency band, the electromagnetic wave signals in the WIFI 2.4G frequency band, the electromagnetic wave signals in the LTE MHB frequency band, and the electromagnetic wave signals in the N41 frequency band; and the second antenna 120 is used to send and receive electromagnetic waves in the WIFI 5G frequency band and the N78 frequency band, the N77 frequency band, and the N79 frequency band.

[0076] See also Fig.14 , Fig.14 Schematic diagram of RL curves of the first antenna and the second antenna in an antenna assembly in one embodiment. The so-called RL curve refers to the return loss curve, which is called Return Loss in English, or RL for short. Fig.14 In the figure, the horizontal axis is frequency in MHz, and the vertical axis is RL in dB. Fig.14 In the figure, curve ① (i.e., the solid line curve in the figure) is the RL curve of the first antenna 110, and curve ② (i.e., the dotted line curve in the figure) is the RL curve of the second antenna 120. It can be seen from curve ① that the first antenna 110 has three modes: a first resonance mode a, a second resonance mode b, and a third resonance mode c. The working frequency band of the first antenna 110 covers 1500MHz to 3000MHz; that is, it supports electromagnetic wave signals in the GPS-L1 band, electromagnetic wave signals in the LTE MHB band, electromagnetic wave signals in the WIFI 2.4G band, and electromagnetic wave signals in the N41 band. Among them, mode a supports the GPS-L1 band, mode b supports the LTE MHB band, and mode c supports the WIFI 2.4G band and the N41 band. It can be seen from curve ② that the second antenna 120 has three modes: the fourth resonance mode d, the fifth resonance mode e, and the sixth resonance mode f. The operating frequency band of the second antenna 120 covers 3300MHz to 6000MHz; that is, it supports electromagnetic wave signals in the N78 frequency band, the N77 frequency band, the N79 frequency band, and the WIIFI 5G frequency band. Among them, mode d supports the N78 frequency band, mode e supports the N77 frequency band and the N79 frequency band, and mode f supports the WIFI 5G frequency band. Mode d is generated by capacitive coupling feeding. By Fig.14 It can be seen that modes a to f all have relatively high efficiency bandwidths. Different positions of the feeding points of the first radiator 111 of the first antenna 110 may cause different orders of appearance of the modes. For example, when the feeding point of the first radiator 111 of the first antenna 110 is at the position shown above, the RL curve of the first antenna 110 is as follows: Fig.14 As shown, when the feeding position of the first radiator 111 moves toward the gap between the first radiator 111 and the second radiator 121, mode c appears before mode b, and the frequency bands supported by mode c and mode b will also change. For example, mode b supports the WIFI 2.4G band and the N41 band, and mode c supports the LTE MHB band. In addition, it can be seen from this schematic diagram that the antenna assembly 10 can cover the Sub 6G band, the MHB band, and the UHB band. Since the antenna assembly 10 is small in size, the space utilization rate of the electronic device 1 to which the antenna assembly 10 is applied can be improved.

[0077] In order to facilitate understanding of the aforementioned modes, the main current distribution on the first radiator 111 and the second radiator 121 under each mode is described in detail below in combination with each mode. Figure 15-Figure 20 , Fig.15 Schematic diagram of main current distribution corresponding to mode a; Fig.16 Schematic diagram of main current distribution corresponding to mode b; Fig.17 Schematic diagram of the main current distribution corresponding to mode c; Fig.18 is the main current distribution corresponding to mode d; Fig.19 is the main current distribution corresponding to mode e; Fig. 20 is the main current distribution corresponding to mode f. In order to enable the first antenna 110 and the second antenna 120 to support the various modes mentioned above, the first feeding point P1 on the first radiator 111 is adjacent to the midpoint of the first radiator 111 and the part close to the second radiator 121, and the second feeding point P2 on the second radiator 121 is set adjacent to the gap between the second radiator 121 and the first radiator 111.

[0078] See also Fig.15 When the first antenna 110 resonates in the first resonant mode (mode a), the current on the first radiator 111 flows from the first ground end G1 through the first feeding point P1 and the free end F1 in sequence.

[0079] See also Fig.16 When the first antenna 110 resonates in the second resonant mode (mode b), the current on the first radiator 111 flows from the first feeding point P1 to the connection point between the second sub-radiator 1112 and the third sub-radiator 1113 and the first free end F1 in sequence.

[0080] See also Fig.17 When the first antenna 110 resonates in the third resonant mode (mode c), the current on the first radiator 111 includes a first sub-current Ix and a second sub-current Iy, the first sub-current Ix flows to the first feeding point P1 via the first ground terminal G1, and the second sub-current Iy flows to the first feeding point P1 via the first free terminal F1.

[0081] See also Fig.18 When the second antenna 120 resonates in the fourth resonance mode, the current on the second radiator 121 flows from the second free end F2 to the second ground end F2, and also flows from the second feeding point P2 to the second ground end G2.

[0082] See also Fig.19When the second antenna 120 resonates in the fifth resonance mode, the current on the second radiator 121 flows to the second free end F2 via the second ground end G2.

[0083] See also Fig. 20 When the second antenna 120 resonates in the sixth resonance mode, the current on the second radiator 121 flows to the second free end G2 via the second feeding point P2.

[0084] It should be noted that Figure 15-20 is the main current distribution corresponding to each mode, and does not represent the entire current distribution in each mode. Due to the coupling effect between the first radiator 111 and the second radiator 121, there will be current coupled from the third sub-radiator 1113 to the fourth sub-radiator 1211 in the second radiator 121, and then to the ground through the fourth sub-radiator 1211 and the fifth sub-radiator 1212. For example, in mode b and mode c, there is also current distribution on the second radiator 121, but in mode b and mode c, the main current is distributed on the first radiator 111, not on the second radiator 121, so the current distribution on the second radiator 121 is not illustrated. Similarly, in modes d to f, the main current is distributed on the second radiator 121, and due to the coupling effect between the first radiator 111 and the second radiator 121, there is also current distribution on the first radiator 111.

[0085] Please also read Fig.21 and Fig. 22 , Fig.21 A three-dimensional structural diagram of an electronic device provided in one embodiment of the present application; Fig. 22 An implementation method provided Fig.21 The electronic device 1 comprises the antenna assembly 10 as described in any of the above embodiments.

[0086] Please refer to Fig.23 and Fig.24 , Fig.23 A top view of a metal frame in one embodiment of the present application; Fig.24This is a top view of a metal frame in another embodiment of the present application. The electronic device 1 also includes a metal frame 20. The metal frame 20 includes a frame body 210, a first metal segment 220, and a second metal segment 230. The first metal segment 220 and the second metal segment 230 are spaced apart, and there is a gap between the first metal segment 220 and the second metal segment 230 and the frame body 210 respectively. The end of the first metal segment 220 facing away from the second metal segment 230 is connected to the frame body 210, and the end of the second metal segment 230 facing away from the first metal segment 220 is connected to the frame body 210, wherein the first radiator 111 includes the first metal segment 220, and the second radiator 121 includes the second metal segment 230. Fig.23 In the figure, the first metal segment 220 and the second metal segment 230 corresponding to the corner of the frame body 210 are used as an example for illustration; Fig.24 In the figure, the first metal segment 220 and the second metal segment 230 corresponding to the edge of the frame body 210 are taken as an example for illustration.

[0087] Since a larger piece of metal can constitute a ground electrode, the frame body 210 can constitute the ground electrode, and the end of the first metal segment 220 facing away from the second metal segment 230 is connected to the frame body 210, so that the first metal segment 220 is grounded; the end of the second metal segment 230 facing away from the second metal segment 230 is connected to the frame body 210, so that the second metal segment 230 is grounded.

[0088] Please refer again Fig. 22 The metal frame 20 includes a frame 240 , and the frame 240 is bent and connected to the periphery of the frame body 210 . The first metal segment 220 and the second metal segment 230 are formed on the frame 240 .

[0089] In this embodiment, the metal frame 20 is a middle frame 30 of the electronic device 1 .

[0090] The middle frame 30 is made of metal, such as aluminum-magnesium alloy. The middle frame 30 usually constitutes the ground of the electronic device 1. When the electronic devices in the electronic device 1 need to be grounded, the middle frame 30 can be connected to the ground. In addition, the ground system in the electronic device 1 includes the ground on the circuit board 50 and the ground in the screen 40 in addition to the middle frame 30.

[0091] In this embodiment, the electronic device 1 further includes a screen 40, a circuit board 50 and a battery cover 60. The screen 40 may be a display screen with a display function, or may be a screen 40 integrated with a display and a touch function. The screen 40 is used to display information such as text, images, and videos. The screen 40 is carried on the middle frame 30 and is located on one side of the middle frame 30. The circuit board 50 is usually also carried on the middle frame 30, and the circuit board 50 and the screen 40 are carried on two opposite sides of the middle frame 30. At least one or more of the first signal source 112, the second signal source 122, the first frequency selection filter circuit 113, and the second frequency selection filter circuit 123 in the antenna assembly 10 described above may be arranged on the circuit board 50. The battery cover 60 is arranged on the side of the circuit board 50 away from the middle frame 30, and the battery cover 60, the middle frame 30, the circuit board 50, and the screen 40 cooperate with each other to assemble a complete electronic device 1. It is understandable that the structural description of the electronic device 1 is merely a description of one form of the structure of the electronic device 1 , and should not be understood as a limitation on the electronic device 1 , nor should it be understood as a limitation on the antenna assembly 10 .

[0092] In other embodiments, the metal frame 20 is also referred to as a middle frame 30 , and only one metal frame 20 is disposed inside the electronic device 1 .

[0093] In other embodiments, the first radiator 111 is an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator, or a metal branch; the second radiator 121 is an FPC antenna radiator, an LDS antenna radiator, a PDS antenna radiator, or a metal branch. The first radiator 111 can be arranged at the edge of the middle frame 30 and electrically connected to the middle frame 30. It can be understood that in other embodiments, the first radiator 111 and the second radiator 121 can also be arranged at other positions and electrically connected to the ground system in the electronic device 1. The ground system in the electronic device 1 includes the middle frame 30, the screen 40, and the circuit board 50. The first radiator 111 and the second radiator 121 are electrically connected to the ground system of the electronic device 1, including the first radiator 111 and the second radiator 121 are electrically connected to any one or more of the middle frame 30, the screen 40, and the circuit board 50.

[0094] In one embodiment, the first radiator 111 and the second radiator 121 are antenna radiators of the same type and are disposed on the same substrate. The first radiator 111 and the second radiator 121 are of the same type and are disposed on the same substrate, thereby facilitating the preparation of the first radiator 111 and the second radiator 121 and the assembly of the first radiator 111 and the second radiator 121 with other components in the electronic device 1. In this embodiment, the electronic device 1 further includes a ground system, which includes one or more of a middle frame 30, a circuit board 50, and a display screen, and one end of the first radiator 111 away from the second radiator 121 is electrically connected to the ground system for grounding, and one end of the second radiator 121 away from the first radiator 111 is electrically connected to the ground system for grounding. In this embodiment, the first radiator 111 is an FPC antenna radiator, or an LDS antenna radiator, or a PDS antenna radiator, or a metal branch; the second radiator 121 is an FPC antenna radiator, or an LDS antenna radiator, or a PDS antenna radiator, or a metal branch, but when the first radiator 111 and the second radiator 121 are not directly formed on the middle frame 30, they need to be electrically connected to the ground system in the electronic device 1.

[0095] When the first radiator 111 is electrically connected to the ground of the middle frame 30, the first radiator 111 may be connected to the ground of the middle frame 30 through a connecting rib, or the first radiator 111 is electrically connected to the ground of the middle frame 30 through a conductive spring. Similarly, when the second radiator 121 is electrically connected to the ground of the middle frame 30, the second radiator 121 may be connected to the ground of the middle frame 30 through a connecting rib, or the second radiator 121 is electrically connected to the ground of the middle frame 30 through a conductive spring.

[0096] See also Fig.25 , Fig.25 Schematic diagram of the positions of the first radiator and the second radiator in an electronic device in one embodiment. In this embodiment, the electronic device 1 includes a top 1a and a bottom 1b, and the first radiator 111 and the second radiator 121 are both disposed on the top 1a.

[0097] The so-called top 1 a refers to the portion of the electronic device 1 that is located on the upper side when the electronic device 1 is in use, and the bottom 1 b is the area located below the electronic device 1 opposite to the top 1 a .

[0098] The top 1a includes three situations: the first radiator 111 and the second radiator 121 are arranged at the upper left corner of the electronic device 1; or the first radiator 111 and the second radiator 121 are arranged at the top edge of the electronic device 1; or the first radiator 111 and the second radiator 121 are arranged at the upper right corner of the electronic device 1.

[0099] When the first radiator 111 and the second radiator 121 are arranged at the upper left corner of the electronic device 1, the following situations are included: part of the first radiator 111 is located on the left side, the other part of the first radiator 111 is located on the top side, and the second radiator 121 is located on the top side; or, part of the second radiator 121 is located on the top side, the other part of the second radiator 121 is located on the left side, and the first radiator 111 is located on the left side.

[0100] When the first radiator 111 and the second radiator 121 are arranged at the upper right corner of the electronic device 1, the following situations are included: the first radiator 111 is partially located at the top edge, the other part of the first radiator 111 is located at the right side, and the second radiator 121 is located on the right; or, the second radiator 121 is partially located on the right, the second radiator 121 is partially located at the top edge, and the first radiator 111 is partially located at the top edge.

[0101] When the electronic device 1 is placed in a three-dimensional manner, the top 1a of the electronic device 1 is usually away from the ground, and the bottom 1b of the electronic device 1 is usually close to the ground. When the first radiator 111 and the second radiator 121 are arranged on the top 1a, the upper hemisphere radiation efficiency of the first antenna 110 and the second antenna 120 is better, so that the first antenna 110 and the second antenna 120 have better communication efficiency. Of course, in other embodiments, the first radiator 111 and the second radiator 121 can also be arranged corresponding to the bottom 1b of the electronic device 1. Although the upper hemisphere radiation efficiency of the first antenna 110 and the second antenna 120 is not so good when the first radiator 111 and the second radiator 121 are arranged corresponding to the bottom 1b of the electronic device 1, as long as the upper hemisphere radiation efficiency is greater than or equal to the preset efficiency, a relatively good communication effect can be achieved.

[0102] See also Fig.26 , Fig.26Schematic diagram of the positions of the first radiator and the second radiator in the electronic device in another embodiment. The electronic device 1 in this embodiment includes a first side 11, a second side 12, a third side 13, and a fourth side 14 connected end to end in sequence. The first side 11 and the third side 13 are short sides of the electronic device 1, and the second side 12 and the fourth side 14 are long sides of the electronic device 1. The first side 11 and the third side 13 are opposite and spaced apart, the second side 12 and the fourth side 14 are opposite and spaced apart, the second side 12 is bent and connected to the first side 11 and the third side 13 respectively, and the fourth side 14 is bent and connected to the first side 11 and the third side 13 respectively. The connection between the first side 11 and the second side 12, the connection between the second side 12 and the third side 13, the connection between the third side 13 and the fourth side 14, and the connection between the fourth side 14 and the first side 11 all form corners of the electronic device 1. The first radiator 111 and the second radiator 121 can be arranged corresponding to any corner of the electronic device 1. It should be noted that the first radiator 111 and the second radiator 121 are arranged corresponding to the same corner of the electronic device 1. When the first radiator 111 and the second radiator 121 are arranged corresponding to the corners of the electronic device 1, the efficiency of the first antenna 110 and the second antenna 120 is relatively high. It can be understood that in this embodiment, the first side 11 and the third side are short sides of the electronic device 1, and the second side 12 and the fourth side 14 are long sides of the electronic device 1. In other embodiments, the first side 11, the second side 12, the third side 13, and the fourth side 14 are equal in length.

[0103] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application, and these improvements and modifications are also regarded as the scope of protection of the present application.

Claims

1. An antenna assembly, characterized in that: The antenna assembly comprises: A first antenna and a second antenna, wherein the first antenna comprises a first radiator, a first signal source, and a first frequency-selective filter circuit, and the second antenna comprises a second radiator, a second signal source, and a second frequency-selective filter circuit; The first radiator and the second radiator are spaced apart and coupled to each other, a gap size d between the first radiator and the second radiator satisfies: 0.5 mm ≤ d ≤ 2.0 mm, an end of the first radiator facing away from the second radiator is grounded, the first signal source is electrically connected to the first frequency selection filter circuit and the first radiator, an end of the second radiator facing away from the first radiator is grounded, and the second signal source is electrically connected to the second frequency selection filter circuit and the second radiator; The first antenna is used to generate at least one resonance mode, and the second antenna is used to generate at least two resonance modes, the at least two resonance modes of the second antenna are used to cover the transmission and reception of electromagnetic wave signals in the first frequency band, the second frequency band, and the third frequency band, and at least one resonance mode of the second antenna is generated by capacitive coupling feeding excitation between the first antenna and the second antenna; Among them, the first antenna has a first resonance mode, a second resonance mode and a third resonance mode; in the first resonance mode, the first antenna is used to transmit and receive electromagnetic wave signals in a fourth frequency band; in the second resonance mode, the first antenna is used to transmit and receive electromagnetic wave signals in a fifth frequency band; in the third resonance mode, the first antenna is used to transmit and receive electromagnetic wave signals in a sixth frequency band and a seventh frequency band; the fourth frequency band includes the GPS-L1 frequency band, the fifth frequency band includes the LTEMHB frequency band, the sixth frequency band includes the WIFI 2.4G frequency band, and the seventh frequency band includes the N41 frequency band.

2. The antenna assembly according to claim 1, wherein: The second antenna has a fourth resonance mode, a fifth resonance mode, and a sixth resonance mode. The first resonance mode, the second resonance mode, the third resonance mode, the fourth resonance mode, the fifth resonance mode, and the sixth resonance mode jointly cover the transmission and reception of electromagnetic wave signals in the MHB and UHB frequency bands.

3. The antenna assembly according to claim 2, wherein: The first frequency selection filter circuit and the second frequency selection filter circuit are used to adjust the resonant frequency of the first antenna according to a preset first frequency selection parameter, so that the first antenna resonates in the first resonant mode, the second resonant mode and the third resonant mode.

4. The antenna assembly according to claim 3, characterized in that: The first radiator includes a first sub-radiator, a second sub-radiator, and a third sub-radiator. The first sub-radiator, the second sub-radiator, and the third sub-radiator are bent and connected in sequence, and the first sub-radiator and the third sub-radiator are both located on the same side of the second sub-radiator. The first sub-radiator has a first grounding end facing away from the second sub-radiator, and the first grounding end is grounded. The second sub-radiator has a first feeding point, and the first feeding point is electrically connected to the first frequency selection filter circuit. The third sub-radiator has a first free end facing away from the second sub-radiator, and the first free end is arranged adjacent to the second radiator.

5. The antenna assembly according to claim 4, characterized in that When the first antenna resonates in a first resonance mode, the current on the first radiator flows from the first ground end through the first feeding point and the first free end in sequence; When the first antenna resonates in the second resonance mode, the current on the first radiator flows from the first feeding point to the connection point between the second sub-radiator and the third sub-radiator and the first free end in sequence; When the first antenna resonates in the third resonance mode, the current on the first radiator includes a first sub-current and a second sub-current, the first sub-current flows to the first feeding point via the first ground end, and the second sub-current flows to the first feeding point via the first free end.

6. The antenna assembly according to any one of claims 2 to 5, characterized in that: The first frequency selection filter circuit and the second frequency selection filter circuit are used to adjust the resonant frequency of the second antenna according to a preset second frequency selection parameter so that the second antenna resonates in the fourth resonant mode, the fifth resonant mode, and the sixth resonant mode, wherein in the fourth resonant mode, the second antenna is used to transmit and receive electromagnetic wave signals in the first frequency band; in the fifth resonant mode, the second antenna is used to transmit and receive electromagnetic wave signals in the second and third frequency bands; in the sixth resonant mode, the second antenna is used to transmit and receive electromagnetic wave signals in the eighth frequency band.

7. The antenna assembly according to claim 6, wherein: The second radiator includes a fourth sub-radiator and a fifth sub-radiator, the fourth sub-radiator is connected to the fifth sub-radiator by bending, the fourth sub-radiator has a second free end facing away from the fifth sub-radiator, the second free end is spaced apart from the first radiator, the fifth sub-radiator has a second feeding point, the second feeding point is electrically connected to the second frequency selection filter circuit, the fifth sub-radiator has a second grounding end facing away from the fourth sub-radiator, and the second grounding end is grounded.

8. The antenna assembly according to claim 7, wherein: When the second antenna resonates in the fourth resonance mode, the current on the second radiator flows from the second free end to the second ground end, and also flows from the second feeding point to the second ground end; When the second antenna resonates in the fifth resonance mode, the current on the second radiator flows to the second free end via the second ground end; When the second antenna resonates in the sixth resonance mode, the current on the second radiator flows to the second free end via the second feeding point.

9. The antenna assembly according to claim 6, wherein: The first frequency band includes the N78 frequency band, the second frequency band includes the N77 frequency band, the third frequency band includes the N79 frequency band, and the eighth frequency band includes the WIFI 5G frequency band.

10. The antenna assembly according to claim 1, wherein: The first radiator includes a first sub-radiator and a second sub-radiator, the first sub-radiator is connected to the second sub-radiator in a bending manner, the first sub-radiator has a first grounding end away from the second sub-radiator, the first grounding end is grounded, the second sub-radiator has a first free end away from the first sub-radiator, the first free end is arranged adjacent to the second radiator, and the second sub-radiator has a first feeding point to electrically connect to the first frequency-selective filtering circuit; the second radiator includes a third sub-radiator and a fourth sub-radiator, the third sub-radiator is connected to the fourth sub-radiator in a bending manner, the third sub-radiator has a second free end away from the fourth sub-radiator, the second free end is spaced apart from the first free end, the third sub-radiator has a second feeding point to electrically connect to the second frequency-selective filtering circuit, and the fourth sub-radiator has a second grounding end away from the third sub-radiator, and the second grounding end is grounded.

11. The antenna assembly according to claim 1, wherein: A size d of a gap between the first radiator and the second radiator is: 0.5 mm≤d≤1.5 mm.

12. The antenna assembly according to claim 1, wherein: The first frequency-selective filtering circuit includes one or more sub-frequency-selective filtering circuits, and the second frequency-selective filtering circuit includes one or more sub-frequency-selective filtering circuits. The sub-frequency-selective filtering circuits are also used to isolate the first antenna and the second antenna.

13. The antenna assembly according to claim 12, wherein: The sub-frequency selective filtering circuit includes one or more of the following circuits: A bandpass circuit formed by connecting an inductor and a capacitor in series; A resistance circuit formed by connecting an inductor and a capacitor in parallel; an inductor, a first capacitor, and a second capacitor, wherein the inductor is connected in parallel with the first capacitor, and the second capacitor is electrically connected to a node where the inductor and the first capacitor are electrically connected; A capacitor, a first inductor, and a second inductor, wherein the capacitor is connected in parallel with the first inductor, and the second inductor is electrically connected to a node where the capacitor and the first inductor are electrically connected; an inductor, a first capacitor, and a second capacitor, wherein the inductor is connected in series with the first capacitor, one end of the second capacitor is electrically connected to the first end of the inductor that is not connected to the first capacitor, and the other end of the second capacitor is electrically connected to the end of the first capacitor that is not connected to the inductor; A capacitor, a first inductor, and a second inductor, wherein the capacitor is connected in series with the first inductor, one end of the second inductor is electrically connected to an end of the capacitor that is not connected to the first inductor, and the other end of the second inductor is electrically connected to an end of the first inductor that is not connected to the capacitor; A first capacitor, a second capacitor, a first inductor, and a second inductor, wherein the first capacitor is connected in parallel with the first inductor, the second capacitor is connected in parallel with the second inductor, and one end of a whole formed by the second capacitor and the second inductor in parallel is electrically connected to one end of a whole formed by the first capacitor and the first inductor in parallel; A first capacitor, a second capacitor, a first inductor, and a second inductor, the first capacitor and the first inductor are connected in series to form a first unit, the second capacitor and the second inductor are connected in series to form a second unit, and the first unit and the second unit are connected in parallel.

14. The antenna assembly according to claim 1, wherein: The excitation signal generated by the second signal source passes through a second frequency-selective filter circuit and is then capacitively coupled and fed to the second radiator.

15. An electronic device, characterized in that: The electronic device comprises the antenna assembly as described in any one of claims 1-14.

16. The electronic device according to claim 15, characterized in that: The electronic device also includes a metal frame, which includes a frame body, a first metal segment, and a second metal segment. The first metal segment and the second metal segment are spaced apart from each other, and a gap is provided between the first metal segment and the second metal segment and the frame body respectively. An end of the first metal segment facing away from the second metal segment is connected to the frame body, and an end of the second metal segment facing away from the first metal segment is connected to the frame body, wherein the first radiator includes the first metal segment, and the second radiator includes the second metal segment.

17. The electronic device according to claim 16, characterized in that: The metal frame includes a frame, the frame is bent and connected to the periphery of the frame body, and the first metal segment and the second metal segment are formed on the frame.

18. The electronic device according to claim 15, characterized in that: The electronic device also includes a ground system, which includes one or more of a middle frame, a circuit board, and a display screen. An end of the first radiator facing away from the second radiator is electrically connected to the ground system for grounding, and an end of the second radiator facing away from the first radiator is electrically connected to the ground system for grounding.

19. The electronic device according to claim 15, characterized in that: The electronic device comprises a top and a bottom, and the first radiator and the second radiator are both arranged on the top.

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