Antenna components and electronic equipment

Abstract

The present application provides an antenna assembly and an electronic device, including a first radiator, a second radiator, a first matching module, a first feeding module, a second matching module and a second feeding module, wherein the first radiator has a first ground terminal, a first coupling terminal and a first feeding point, the second radiator has a second coupling terminal, a second ground terminal and a second feeding point, a first coupling gap exists between the second coupling terminal and the first coupling terminal, the first matching module is electrically connected between the first feeding point and the first feeding module; the second matching module is electrically connected between the second feeding point and the second feeding module; the first radiator and the second radiator support multiple resonant modes under the excitation of the first feeding module and the second feeding module, wherein at least one resonant mode is a (1 / 8 to 1 / 4) wavelength mode in which the excitation current of the first feeding module resonates on the second radiator. The present application provides an antenna assembly and an electronic device for improving data transmission rate and communication quality.

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 communication technology, electronic devices with communication functions are becoming more and more popular, and the requirements for Internet access speed are getting higher and higher. Therefore, how to improve the data transmission rate of electronic devices and improve the communication quality of electronic devices has become a technical problem that needs to be solved. Summary of the invention

[0003] The present application provides an antenna assembly and electronic equipment for increasing data transmission rate and improving communication quality.

[0004] In a first aspect, the present application provides an antenna assembly, comprising a first radiator, a second radiator, a first matching module, a first feeding module, a second matching module and a second feeding module, wherein the first radiator has a first grounding end and a first coupling end, and a first feeding point located between the first grounding end and the first coupling end, the second radiator has a second coupling end and a second grounding end, and a second feeding point located between the second coupling end and the second grounding end, a first coupling gap exists between the second coupling end and the first coupling end, the first matching module is electrically connected between the first feeding point and the first feeding module, and the first grounding end is electrically connected to a first reference ground; the second matching module is electrically connected between the second feeding point and the second feeding module, and the second grounding end is electrically connected to a second reference ground; the first radiator and the second radiator support multiple resonant modes under the excitation of the first feeding module and the second feeding module, wherein at least one of the resonant modes is a (1 / 8 to 1 / 4) wavelength mode in which the excitation current of the first feeding module resonates on the second radiator.

[0005] In a second aspect, the present application provides an electronic device, which includes a shell and at least one antenna assembly as described above, wherein the radiator of the antenna assembly is integrated in the shell, or is disposed on the surface of the shell, or is disposed in the space surrounded by the shell.

[0006] The antenna assembly and electronic device provided by the present application are designed to be capacitively coupled with the first radiator and the second radiator. The first radiator and the second radiator are co-aperture radiators, and the length of the second radiator is designed to correspond to the (1 / 8 to 1 / 4) wavelength of the frequency of the excitation current provided by the first feeding module, so that the current transmitted by the first feeding module can resonate with the first radiator while also being able to resonate with the (1 / 8 to 1 / 4) wavelength mode on the second radiator through the first coupling gap, that is, the first radiator and the second radiator are multiplexed with each other to increase the number of resonant modes supported by the antenna assembly, thereby increasing the number of frequency bands or bandwidths supported by the antenna assembly, improving data transmission rate and communication quality, and also facilitating the antenna assembly to support signals of different protocol standards, thereby avoiding RF link losses caused by transmitting and receiving signals of different protocol standards through one radiator. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0008] Figure 1 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application;

[0009] Figure 2 yes Figure 1 A schematic diagram of the structure of the electronic device shown;

[0010] Figure 3 yes Figure 2 A schematic structural diagram of a first antenna assembly in an electronic device shown;

[0011] Figure 4 yes Figure 3 A schematic diagram of an S-parameter curve of the antenna assembly shown;

[0012] Figure 5 yes Figure 3 A schematic diagram of the first resonant current density distribution in the antenna assembly shown;

[0013] Figure 6 yes Figure 3 A schematic diagram of the second resonant current density distribution in the antenna assembly shown;

[0014] Figure 7 yes Figure 3 A schematic diagram of the third resonant current density distribution in the antenna assembly shown;

[0015] Figure 8 yes Figure 3A schematic diagram of a fourth resonant current density distribution in the antenna assembly shown;

[0016] Fig. 9 yes Figure 3 A schematic diagram of the fifth resonant current density distribution in the antenna assembly shown;

[0017] Fig.10 yes Figure 3 A schematic diagram of the structure of the first matching module;

[0018] Fig.11 is a schematic diagram of the structure of the first sub-branch provided in an embodiment of the present application;

[0019] Fig.12 is a schematic diagram of the structure of the second first sub-branch provided in an embodiment of the present application;

[0020] Fig.13 is a schematic diagram of the structure of the third first sub-branch provided in an embodiment of the present application;

[0021] Fig.14 is a schematic structural diagram of a fourth first sub-branch provided in an embodiment of the present application;

[0022] Fig.15 is a structural schematic diagram of the fifth first sub-branch provided in an embodiment of the present application;

[0023] Fig.16 is a schematic structural diagram of a sixth first sub-branch provided in an embodiment of the present application;

[0024] Fig.17 is a schematic structural diagram of the seventh first sub-branch provided in an embodiment of the present application;

[0025] Fig.18 is a schematic structural diagram of an eighth first sub-branch provided in an embodiment of the present application;

[0026] Fig.19 yes Figure 3 The first antenna assembly shown is provided with a schematic structural diagram of an adjustable branch;

[0027] Fig. 20 yes Figure 3 Detailed structural diagram of the first matching module;

[0028] Fig.21 yes Figure 3 and Fig.19 Comparison of S parameter curves of antenna components in ;

[0029] Fig. 22 yes Figure 3 A schematic diagram of the structure of the second matching module;

[0030] Fig.23 yes Figure 3 The first antenna assembly is shown as a schematic diagram of the structure installed in the electronic device Figure 1 ;

[0031] Fig.24 yes Fig.23 A schematic diagram of the structure of the horizontal screen setting;

[0032] Fig.25 yes Figure 3 The efficiency curve diagram of the first antenna assembly shown;

[0033] Fig.26 yes Figure 3 The first antenna assembly is shown as a schematic diagram of the structure installed in the electronic device Figure 2 ;

[0034] Fig. 27 yes Figure 3 The first antenna assembly is shown as a schematic diagram of the structure installed in the electronic device Figure 3 ;

[0035] Fig.28 This is a schematic diagram of the structure of the second antenna assembly provided in the embodiment of the present application installed in an electronic device. Figure 1 ;

[0036] Fig.29 is a structural schematic diagram of a second antenna assembly provided in an embodiment of the present application;

[0037] Fig.30 yes Fig.29 The second antenna assembly shown is installed in an electronic device. Figure 2 ;

[0038] Fig.31 yes Fig.29 A schematic diagram of an improved structure of the second antenna assembly shown;

[0039] Fig.32 yes Fig.29 A schematic diagram of the structure of the second antenna assembly with integrated proximity detection is shown;

[0040] Fig.33 is a structural schematic diagram of a third antenna assembly provided in an embodiment of the present application;

[0041] Fig.34 yes Fig.33 A schematic diagram of an S-parameter curve of a first antenna unit of an antenna assembly;

[0042] Fig.35 yes Fig.33 A schematic diagram of an S-parameter curve of a second antenna unit of the antenna assembly;

[0043] Fig.36 yes Fig.33 A schematic diagram of an S-parameter curve of a third antenna unit of the antenna assembly;

[0044] Fig.37 yes Fig.33 A schematic diagram of current density distribution of the sixth resonance resonance in the antenna assembly shown;

[0045] Fig.38 yes Fig.33 A schematic diagram of current density distribution of the seventh resonance in the antenna assembly shown;

[0046] Fig.39 yes Fig.33 A schematic diagram of current density distribution of the eighth resonance in the antenna assembly shown;

[0047] Fig.40 yes Fig.33 A schematic diagram of an S-parameter curve of a fourth antenna unit of the antenna assembly;

[0048] Fig.41 yes Fig.33 A schematic diagram of current density distribution of the tenth resonance in the antenna assembly shown;

[0049] Fig.42 yes Fig.33 A schematic diagram of current density distribution of the eleventh resonance in the antenna assembly shown;

[0050] Fig.43 yes Fig.33 A schematic diagram of current density distribution of the twelfth resonance in the antenna assembly shown;

[0051] Fig.44 yes Fig.33 A schematic diagram of the structure of the antenna assembly installed in an electronic device;

[0052] Fig.45 yes Fig.33 S-parameter curve diagram of the antenna assembly shown;

[0053] Fig.46 yes Fig.33 The isolation curve between the antenna units of the antenna assembly shown;

[0054] Fig.47 It is a schematic structural diagram of a third antenna assembly provided in an embodiment of the present application, in which a common body radiator is used as a proximity sensing electrode;

[0055] Fig.48 is a schematic diagram of a structure in which the second radiator of the third antenna assembly provided in an embodiment of the present application serves as a proximity sensing electrode;

[0056] Fig.49 is a schematic structural diagram of a fourth radiator of a third antenna assembly provided in an embodiment of the present application as a proximity sensing electrode;

[0057] Fig.50 It is a schematic diagram of the structure of the common body radiator and the fourth radiator of the third antenna assembly provided in an embodiment of the present application as proximity sensing electrodes;

[0058] Fig.51 It is a structural schematic diagram of adding a seventh matching module to the third antenna assembly provided in an embodiment of the present application;

[0059] Fig.52 It is a structural schematic diagram of adding a seventh matching module and an eighth matching module to the third antenna assembly provided in an embodiment of the present application. DETAILED DESCRIPTION

[0060] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. In addition, the reference to "embodiment" or "implementation method" in this article means that the specific features, structures or characteristics described in conjunction with the embodiments or implementation methods may be included in at least one embodiment of the present application. The appearance of this phrase in various positions 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.

[0061] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device 1000 includes an antenna assembly 100. The antenna assembly 100 is used to send and receive electromagnetic wave signals to realize the communication function of the electronic device 1000. The present application does not specifically limit the position of the antenna assembly 100 in the electronic device 1000. The electronic device 1000 also includes a display screen 300 and a housing 200 that are covered and connected to each other. The antenna assembly 100 can be arranged inside the housing 200 of the electronic device 1000, or partially integrated with the housing 200, or partially arranged outside the housing 200. Figure 1 The radiator of the antenna assembly 100 is integrated with the housing 200. Of course, the antenna assembly 100 can also be arranged on the retractable assembly of the electronic device 1000. In other words, at least part of the antenna assembly 100 can also extend out of the electronic device 1000 along with the retractable assembly of the electronic device 1000, and retract into the electronic device 1000 along with the retractable assembly; or, the overall length of the antenna assembly 100 can be extended along with the extension of the retractable assembly of the electronic device 1000.

[0062] The electronic device 1000 includes but is not limited to a telephone, a television, a tablet computer, a mobile phone, a camera, a personal computer, a laptop computer, a vehicle-mounted device, a headset, a watch, a wearable device, a base station, a vehicle-mounted radar, a customer premise equipment (Customer Premise Equipment, CPE), and other devices capable of transmitting and receiving electromagnetic wave signals. In this application, the electronic device 1000 is taken as a mobile phone as an example, and other devices can refer to the specific description in this application.

[0063] For ease of description, the electronic device 1000 is in Figure 1 The perspective in is used as a reference, the width direction of the electronic device 1000 is defined as the X-axis direction, the length direction of the electronic device 1000 is defined as the Y-axis direction, and the thickness direction of the electronic device 1000 is defined as the Z-axis direction. The X-axis direction, the Y-axis direction, and the Z-axis direction are perpendicular to each other. The direction indicated by the arrow is the positive direction.

[0064] See also Figure 2 , the housing 200 includes a frame 210 and a back cover 220. A middle plate 410 is formed in the frame 210 by injection molding, and a plurality of mounting grooves for mounting various electronic devices are formed on the middle plate 410. The middle plate 410 and the frame 210 together form the middle frame 420 of the electronic device 1000. After the display screen 300, the middle frame 420 and the back cover 220 are covered, a receiving space is formed on both sides of the middle frame 420. One side of the frame 210 (for example, the back side) is surrounded by the periphery of the back cover 220, and the other side of the frame 210 (for example, the front side) is surrounded by the periphery of the display screen 300. The electronic device 1000 also includes a battery, a camera, a microphone, a receiver, a speaker, a face recognition module, a fingerprint recognition module, etc., which are arranged in the receiving space and can realize the basic functions of the mobile phone, which will not be repeated in this embodiment.

[0065] The antenna assembly 100 provided in the present application is described in detail below in conjunction with the accompanying drawings. Of course, the antenna assembly 100 provided in the present application includes but is not limited to the following implementations.

[0066] See also Figure 3 The antenna assembly 100 at least includes a first radiator 11, a second radiator 21, a first matching module M1, a first feeding module 13, a second matching module M2 and a second feeding module 23. In order to functionally divide the different parts of the antenna assembly 100 for the convenience of subsequent description, the first radiator 11, the second radiator 21, the first matching module M1 and the first feeding module 13 are defined as the first antenna unit 10, and the first radiator 11, the second radiator 21, the second matching module M2 and the second feeding module 23 are defined as the second antenna unit 20.

[0067] See also Figure 3, the first radiator 11 has a first grounding end 111 and a first coupling end 112, and a first feeding point A located between the first grounding end 111 and the first coupling end 112. In this embodiment, the first grounding end 111 and the first coupling end 112 are two opposite ends of the first radiator 11 in a straight bar shape. In other embodiments, the first radiator 11 is bent, and the first grounding end 111 and the first coupling end 112 may not be opposite to each other in a straight line direction, but the first grounding end 111 and the first coupling end 112 are two ends of the first radiator 11.

[0068] See also Figure 3 , the second radiator 21 has a second coupling end 211 and a second grounding end 212, and a second feeding point B located between the second coupling end 211 and the second grounding end 212. There is a first coupling gap 140 between the second coupling end 211 and the first coupling end 112. The first radiator 11 and the second radiator 21 can generate capacitive coupling through the first coupling gap 140. In this embodiment, the second coupling end 211 and the second free end 122 are the two ends of the second radiator 21. Optionally, the first radiator 11 and the second radiator 21 can be arranged in a straight line or approximately in a straight line (that is, there is a smaller tolerance in the design process). Of course, in other embodiments, the first radiator 11 and the second radiator 21 can also be staggered in the extension direction to form an avoidance space, etc.

[0069] See also Figure 3 The first coupling end 112 and the second coupling end 211 are opposite and spaced apart. The first coupling gap 140 is a gap between the first radiator 11 and the second radiator 21. For example, the width of the first coupling gap 140 can be 0.5 to 2 mm, but is not limited to this size. The first radiator 11 and the second radiator 21 can be regarded as two parts of the radiator separated by the first coupling gap 140.

[0070] The first radiator 11 and the second radiator 21 are capacitively coupled via the first coupling gap 140. “Capacitive coupling” means that an electric field is generated between the first radiator 11 and the second radiator 21, and the signal of the first radiator 11 can be transmitted to the second radiator 21 through the electric field, and the signal of the second radiator 21 can be transmitted to the first radiator 11 through the electric field, so that the first radiator 11 and the second radiator 21 can achieve electrical signal conduction even when they are not in direct contact or not directly connected.

[0071] It is understandable that the present application does not specifically limit the shape and structure of the first radiator 11 and the second radiator 21. The shapes of the first radiator 11 and the second radiator 21 include but are not limited to strips, sheets, rods, coatings, films, etc. When the first radiator 11 and the second radiator 21 are in strip shape, the present application does not limit the extension trajectory of the first radiator 11 and the second radiator 21, so the first radiator 11 and the second radiator 21 can be extended in a straight line, a curve, a multi-section bend, etc. The above-mentioned radiator can be a line with uniform width on the extension trajectory, or it can be a strip with different widths such as a gradient width and a widened area.

[0072] See also Figure 3 , the first matching module M1 is electrically connected between the first feeding point A and the first feeding module 13. The first feeding module 13 is a radio frequency transceiver chip for sending radio frequency signals or a feeding part electrically connected to the radio frequency transceiver chip for sending radio frequency signals. The first matching module M1 may include at least one of a switch device, a capacitor device, an inductor device, a resistor device, etc.

[0073] See also Figure 3 The first ground terminal 111 is electrically connected to the first reference ground GND1, and its electrical connection method includes but is not limited to direct welding, or indirect electrical connection through coaxial lines, microstrip lines, conductive springs, conductive adhesives, etc. The present application does not limit the specific position of the first feeding point A on the first radiator 11.

[0074] See also Figure 3 The second antenna unit 20 includes a first radiator 11 , a second radiator 21 , a second matching module M2 and a second feeding module 23 .

[0075] See also Figure 3 The second matching module M2 is electrically connected between the second feeding point B and the second feeding module 23. The second feeding module 23 is a radio frequency transceiver chip for sending radio frequency signals or a feeding part electrically connected to the radio frequency transceiver chip for sending radio frequency signals. The second matching module M2 includes at least one of a switch device, a capacitor device, an inductor device, a resistor device, etc.

[0076] See also Figure 3 The second ground terminal 212 is electrically connected to the second reference ground GND2, and its electrical connection method includes but is not limited to direct welding, or indirect electrical connection through coaxial lines, microstrip lines, conductive springs, conductive adhesives, etc. The present application does not limit the specific position of the first feeding point A on the first radiator 11.

[0077] The first reference ground GND1 and the second reference ground GND2 include but are not limited to the following embodiments. Optionally, the antenna assembly 100 itself has a reference ground. The specific form of the reference ground includes but is not limited to a metal conductive plate, a metal conductive layer formed inside a flexible circuit board, a hard circuit board, etc. Among them, the first reference ground GND1 and the second reference ground GND2 can be a reference ground integrally formed in the antenna assembly 100, or two independent but interconnected reference grounds in the antenna assembly 100. When the antenna assembly 100 is arranged in the electronic device 1000, the reference ground of the antenna assembly 100 is electrically connected to the reference ground of the electronic device 1000. Optionally, the antenna assembly 100 itself does not have a reference ground, and the first ground terminal 111 and the second ground terminal 212 of the antenna assembly 100 are directly electrically connected or indirectly electrically connected to the reference ground of the electronic device 1000 or the reference ground of the electronic device in the electronic device 1000 through a conductive member. In the present application, the antenna assembly 100 is arranged in the electronic device 1000, and the metal alloy on the middle plate 410 is used as the reference ground GND. That is, the first reference ground GND1 and the second reference ground GND2 are part of the middle board 410 or are electrically connected to the middle board 410 , and the subsequent third reference ground GND3 to the seventh reference ground GND7 are all part of the reference ground GND.

[0078] In this embodiment, the first radiator 11 and the second radiator 21 support multiple resonance modes under the excitation of the first feeding module 13 and the second feeding module 23. Specifically, the first radiator 11 and the second radiator 21 support multiple resonance modes (for example, Figure 4 Specifically, the first radiator 11 and the second radiator 21 support multiple resonance modes (for example, Figure 4 The fourth resonance mode d and the fifth resonance mode e).

[0079] Due to the capacitive coupling between the first radiator 11 and the second radiator 21, the current generated by the first feeding module 13 can resonate on the first radiator 11 and / or the second radiator 21, and the current generated by the second feeding module 23 can also resonate on the first radiator 11 and / or the second radiator 21. The first radiator 11 and the second radiator 21 can be used as the radiator of the first antenna unit 10 and the radiator of the second antenna unit 20. Compared with the current generated by the first feeding module 13 resonating on the first radiator 11 alone, and the second feeding module 23 resonating on the second radiator 21 alone, the first antenna unit 10 and the second antenna unit 20 in the antenna assembly 100 provided in the embodiment of the present application realize co-aperture radiation and can generate more resonant modes. From another perspective, the antenna assembly 100 provided in the embodiment of the present application fully reuses the radiator while supporting the required frequency band (or supporting the required number of resonant modes), further reducing the stacking length of the first radiator 11 and the second radiator 21.

[0080] Among them, at least one resonance mode is a (1 / 8-1 / 4) wavelength mode in which the excitation current of the first feeding module 13 resonates on the second radiator 21. Among them, the wavelength refers to the wavelength of the electromagnetic wave in the medium in the environment. Specifically, the current provided by the first feeding module 13 resonates on the first radiator 11 to generate a resonant mode; in addition, due to the capacitive coupling between the first radiator 11 and the second radiator 21, the current provided by the first feeding module 13 is also transmitted to the second radiator 21 through the first coupling slot 140 to generate a resonant mode on the second radiator 21, thereby increasing the number of resonant modes supported by the first antenna unit 10; further, by designing the length of the second radiator 21 to be approximately (1 / 8 to 1 / 4) times the wavelength of the current frequency provided by the first feeding module 13 in the medium, it is beneficial to generate a resonant mode, so that the current resonates in the (1 / 8 to 1 / 4) wavelength mode on the second radiator 21, wherein the (1 / 8 to 1 / 4) wavelength mode is a resonant mode with relatively high efficiency, so that the number of resonant modes supported by the first antenna unit 10 and the transceiver efficiency for the supported frequency band can be increased, thereby achieving the first antenna unit 10 generating resonant modes on both the first radiator 11 and the second radiator 21. Compared with the current of the first antenna unit 10 only resonating on the first radiator 11 , the number of resonant modes supported by the first antenna unit 10 is increased and a higher signal conversion efficiency is generated, thereby increasing the number of resonant modes supported by the antenna assembly 100 .

[0081] The number of resonant modes supported by the antenna assembly 100 increases, and the frequency band width and the number of frequency bands covered by the antenna assembly 100 increase. Specifically, on the first hand, when the frequency bands supported by the various resonant modes of the antenna component 100 are all continuous, the frequency bandwidth supported by this antenna component 100 is relatively wide, and can form an ultra-wideband, which is 1G, 1.5G or 2G, etc., to achieve ultra-wideband coverage, improve download bandwidth, improve throughput download speed, and improve user Internet experience; on the second hand, when the frequency bands supported by the various resonant modes of the antenna component 100 are discontinuous, the number of frequency bands supported by this antenna component 100 increases to achieve multi-band coverage. For example, the frequency bands supported by the antenna component 100 can simultaneously cover 4G / 5G medium and high frequencies (for example, 1000MHz~3000MHz) and 4G / 5G ultra-high frequencies (for example, 3000MHz~10000MHz), simultaneously support two different medium and high frequencies, and simultaneously support 4G / 5G medium and high frequencies and WiFi bands (for example, WiFi 5G, 5.925GHz~7.125GHz, etc.), etc. The frequency bands supported by the multiple resonance modes are continuous, which means that two adjacent frequency bands supported by the multiple resonance modes overlap at least in part. The frequency bands supported by the multiple resonance modes are discontinuous, which means that two adjacent frequency bands supported by the multiple resonance modes do not overlap.

[0082] When the antenna assembly 100 is used to cover signals of two different communication protocols (such as mobile communication 4G / 5G signals and WiFi signals), the first antenna unit 10 can support relatively more resonance modes, the covered frequency band width is relatively wide and the number of supported frequency bands is relatively large, so that the first antenna unit 10 can support one of the communication protocol signals that requires more resonance modes to support (such as mobile communication 4G / 5G signals), while the second antenna unit 20 can support another communication protocol signal (such as WiFi signals). In this way, it is avoided that when one antenna unit supports two different communication protocol signals, it is necessary to set up devices such as combiners, which leads to increased losses in the RF link.

[0083] The antenna assembly 100 and the electronic device 1000 provided in the present application are designed to be capacitively coupled with the first radiator 11 and the second radiator 21. The first radiator 11 and the second radiator 21 serve as co-aperture radiators of the first antenna unit 10 and the second antenna unit 20, and the length of the second radiator 21 is designed to correspond to the (1 / 8 to 1 / 4) wavelength of the resonant frequency of the excitation current provided by the first feeding module 13, so that the current transmitted by the first feeding module 13 resonates with the first radiator 11, and can also resonate with the (1 / 8 to 1 / 4) wavelength mode on the second radiator 21 through the first coupling slot 140, so that the number of resonant modes supported by the first antenna unit 10 and the transceiver efficiency for the supported frequency bands can be increased, thereby increasing the number of frequency bands or bandwidth supported by the first antenna unit 10, improving the data transmission rate and communication quality, and also facilitating the second antenna unit 20 to support signals of the same protocol standard, avoiding the RF link loss caused by transmitting and receiving signals of different protocol standards through one radiator, and improving the structural simplicity of the antenna unit 100 and reducing the RF link loss.

[0084] See also Figure 4 , the first antenna unit 10 at least supports a first resonance mode a, a second resonance mode b and a third resonance mode c.

[0085] Optionally, the first radiator 11 supports at least the first resonance mode a and the third resonance mode c under the excitation of the first feeding module 13. The second radiator 21 supports at least the second resonance mode b under the excitation of the first feeding module 13.

[0086] Among them, the resonant mode is characterized by the antenna assembly 100 having a higher electromagnetic wave receiving and transmitting efficiency at and near the resonant frequency. The resonant frequency is the resonant frequency of the resonant mode, and the resonant frequency and its vicinity form the frequency band supported or covered by the resonant mode. Optionally, in the return loss curve, the absolute value of the return loss value greater than or equal to 5dB (only for example, and cannot be used as a limitation of the return loss value of higher efficiency in this application) is taken as a reference value with higher electromagnetic wave receiving and transmitting efficiency. The set of frequencies in a resonant mode where the absolute value of the return loss value is greater than or equal to 5dB is taken as the frequency band supported by the resonant mode.

[0087] See also Figure 5 , the first resonant current density of the first resonant mode a is mainly distributed between the first ground terminal 111 and the first coupling terminal 112, and flows from the first ground terminal 111 to the first coupling terminal 112, or from the first coupling terminal 112 to the first ground terminal 111. It can be understood that the above is the main current density distribution of the first resonant mode a, and there is also a small amount of current density distribution on the second radiator 21.

[0088] For details, please refer to Figure 4 and Figure 5 , the first resonance mode a is a (1 / 8 to 1 / 4) wavelength mode in which the excitation current (i.e., the first resonance current) provided by the first feeding module 13 resonates on the first radiator 11. Specifically, by designing the length of the first radiator 11 to be approximately (1 / 8 to 1 / 4) times the wavelength of the excitation current sent by the first feeding module 13 to the first radiator 11 in the medium, the first resonance mode a is excited on the first radiator 11, and a higher radiation efficiency is achieved in the frequency band supported by the first resonance mode a.

[0089] Generally, by designing the length of the first radiator 11 to be approximately (1 / 4) times the wavelength of the excitation current sent by the first feeding module 13 to the first radiator 11 in the medium, a higher radiation efficiency can be easily excited at the first resonant frequency f1 (the resonant frequency of the first resonant mode a). Further, by setting a grounded capacitive matching circuit on the path of the first resonant current to achieve capacitive coupling feeding into the first radiator 11, the capacitive loading can cause the resonant frequency of the first resonant mode a to shift toward a low frequency, and no longer follow the original requirement to generate a higher efficiency resonance at a length of the first radiator 11 of approximately 1 / 4 wavelength, but can generate a higher efficiency resonance within the range of 1 / 8 to 1 / 4 wavelength corresponding to the length of the first radiator 11. Therefore, while the original first resonant frequency f1 forms resonance, the corresponding length of the first radiator 11 can also be shortened, for example, reduced to 1 / 8 times the wavelength corresponding to the first resonant frequency f1, etc., further reducing the size of the first radiator 11 and reducing the stacking length of the antenna assembly 100.

[0090] Optional, see Figure 6 , the second resonant current density of the second resonant mode b is mainly distributed between the first feeding point A and the second grounding terminal 212, flows from the first feeding point A to the first coupling terminal 112, passes through the first coupling slot 140, and then flows from the second coupling terminal 211 to the second grounding terminal 212, or flows from the second grounding terminal 212 to the second coupling terminal 211, passes through the first coupling slot 140, and then flows from the first coupling terminal 112 to the first feeding point A. It can be understood that the above is the main current density distribution of the second resonant mode b, and there is also a small amount of current density distribution between the first grounding terminal 111 and the first feeding point A.

[0091] Please refer to Figure 4 and Figure 6, the second resonance mode b is a (1 / 8 to 1 / 4) wavelength mode in which the excitation current (second resonance current) provided by the first feeding module 13 resonates on the second radiator 21. Specifically, the length of the second radiator 21 is designed to be approximately (1 / 8 to 1 / 4) times the wavelength of the excitation current sent by the first feeding module 13 to the second radiator 21 in the medium, so as to excite the second resonance mode b on the second radiator 21.

[0092] Generally, by designing the length of the second radiator 21 to be approximately (1 / 4) times the wavelength of the excitation current sent by the first feeding module 13 in the medium, it is easy to excite a higher radiation efficiency at the second resonant frequency f2 (the resonant frequency of the second resonant mode b). Further, by setting a grounded capacitive matching circuit on the path of the second resonant current to achieve capacitive coupling feeding into the second radiator 21, the capacitive loading can cause the resonant frequency of the second resonant mode b to shift toward a low frequency, and no longer follow the original need to produce a higher efficiency resonance at a length of the second radiator 21 of approximately 1 / 4 wavelength, but can produce a higher efficiency resonance within the range of 1 / 8 to 1 / 4 wavelength corresponding to the length of the second radiator 21. Therefore, while the original second resonant frequency f2 forms resonance, the corresponding length of the second radiator 21 can also be shortened, for example, reduced to 1 / 8 times the wavelength corresponding to the second resonant frequency f2, etc., further reducing the size of the second radiator 21 and reducing the stacking length of the antenna assembly 100.

[0093] Optional, see Figure 7 , the third resonant current density of the third resonant mode c is mainly distributed between the first feeding point A and the first coupling end 112, and flows from the first feeding point A to the first coupling end 112, or flows from the first coupling end 112 to the first feeding point A. It can be understood that the above is the main current density distribution of the third resonant mode c, and there is also a small amount of current density distribution between the first ground terminal 111 and the first feeding point A and on the second radiator 21.

[0094] Please also read Figure 4 and Figure 7 , the third resonance mode c is the (1 / 8 to 1 / 4) wavelength mode of the excitation current (third resonance current) provided by the first feeding module 13 resonating from the first feeding point A to the first coupling end 112. Specifically, by designing the length from the first feeding point A to the first coupling end 112 to be approximately (1 / 8 to 1 / 4) times the wavelength of the excitation current sent by the first feeding module 13 to the first radiator 11 in the medium, the third resonance mode c is excited from the first feeding point A to the first coupling end 112.

[0095] Generally, by designing the length from the first feeding point A to the first coupling end 112 to be approximately (1 / 4) times the wavelength of the excitation current sent by the first feeding module 13 in the medium, a higher radiation efficiency can be easily excited at the third resonant frequency f3 (the resonant frequency of the third resonant mode c). Furthermore, by setting a grounded capacitive matching circuit on the path of the third resonant current to achieve capacitive coupling and feeding into the first radiator 11, the capacitive loading can cause the resonant frequency of the third resonant mode c to shift toward a low frequency, and no longer follow the original requirement to produce a higher efficiency resonance at a length from the first feeding point A to the first coupling end 112 of approximately 1 / 4 wavelength, but can produce a higher efficiency resonance within the range of 1 / 8 to 1 / 4 wavelength corresponding to the length from the first feeding point A to the first coupling end 112. Therefore, while the original third resonant frequency f3 forms resonance, the corresponding length from the first feeding point A to the first coupling end 112 can also be shortened, for example, reduced to 1 / 8 times the wavelength corresponding to the third resonant frequency f3, etc., thereby further reducing the size from the first feeding point A to the first coupling end 112 and reducing the stacking length of the antenna assembly 100.

[0096] Of course, in other embodiments, the second resonance mode b is a mode in which the excitation current provided by the first feeding module 13 resonates at a (1 / 8 to 1 / 4) wavelength from the first feeding point A to the first coupling end 112. The third resonance mode c is a mode in which the excitation current provided by the first feeding module 13 resonates at a (1 / 8 to 1 / 4) wavelength from the first feeding point A to the first coupling end 112.

[0097] By designing the length of the first radiator 11, the length between the first feeding point A and the first coupling end 112, and the length of the second radiator 21, the first feeding module 13 can excite resonant modes on the first radiator 11, the first radiator 11 between the first feeding point A and the first coupling end 112, and the second radiator 21, thereby increasing the number of resonant modes that the first antenna unit 10 can support, effectively increasing the number of frequency bands and frequency band width covered by the first antenna unit 10, and improving the data transmission rate of the antenna assembly 100.

[0098] Optionally, the frequency band supported by the first resonance mode a, the second resonance mode b, or the third resonance mode c includes a GPS band, an LTE 4G band, an NR 5G band, a Wi-Fi 2.4G band, a Wi-Fi 5G band, a Wi-Fi 6E band, or a combined frequency band formed by an LTE 4G band and an NR 5G band, etc. The frequency band supported by a resonance mode may be a separate LTE 4G band, a separate NR 5G band, a separate Wi-Fi band, or a combined frequency band formed by an LTE 4G band and an NR 5G band, etc.

[0099] In the present application, the magnitude of the resonant frequency of the first resonant mode a, the magnitude of the resonant frequency of the second resonant mode b, and the magnitude of the resonant frequency of the third resonant mode c are not specifically limited. In the present embodiment, the resonant frequency of the first resonant mode a, the resonant frequency of the second resonant mode b, and the resonant frequency of the third resonant mode c increase in sequence. When the first resonance mode a, the second resonance mode b and the third resonance mode c are all 1 / 4 wavelength modes, since the resonance frequencies of the first resonance mode a, the second resonance mode b and the third resonance mode c increase successively, it can be obtained that the 1 / 4 wavelength corresponding to the resonance frequency of the first resonance mode a, the 1 / 4 wavelength corresponding to the resonance frequency of the second resonance mode b and the 1 / 4 wavelength corresponding to the resonance frequency of the third resonance mode c decrease successively, and the radiation part of the 1 / 4 wavelength corresponding to the resonance frequency of the second resonance mode b is arranged on the first radiator 11. Compared with the total length of the common-aperture radiator in which the 1 / 4 wavelength corresponding to the resonance frequency of the third resonance mode c is arranged on the first radiator 11, the stacking length of the first radiator 11 and the second radiator 21 of the antenna component 100 is shorter, thereby achieving a shorter stacking length of the first radiator 11 and the second radiator 21 of the antenna component 100, further reducing the space occupied by the antenna component 100 in an extremely limited space.

[0100] In this embodiment, the frequency band supported by the first resonance mode a includes at least one of the GPS band, the LTE-4G MHB band, and the NR-5G MHB band, for example, at least one of the GPS-L1 band, the B3 band, the B1 band, the N3 band, and the N1 band. For example, the resonant frequency of the first resonance mode a is 1.7698 GHz. The frequency band supported by the second resonance mode b includes at least one of the Wi-Fi 2.4G band, the LTE-4G MHB band, the NR-5G MHB band, etc., for example, the Wi-Fi 2.4G band, the B7 band, the B41 band, the B38 band, the N7 band, the N41 band, etc. For example, the resonant frequency of the second resonance mode b is 2.6185 GHz. The frequency band supported by the third resonance mode c includes at least one of the LTE-4G UHB band, the NR-5G UHB band, etc., for example, at least one of the N78 band, the B42 band, the B43 band, etc. For example, the resonant frequency of the third resonance mode c is 3.5983 GHz. Among them, MHB refers to the medium and high frequency band (1000 MHz to 3000 MHz). UHB refers to the ultra-high frequency band (3000 MHz to 10000 MHz).

[0101] Optional, see Figure 4 , the second radiator 21 at least supports the fourth resonance mode d and the fifth resonance mode e.

[0102] Optionally, the second radiator 21 between the second coupling end 211 and the second feeding point B supports at least the fourth resonance mode d under the excitation of the second feeding module 23. The first radiator 1121 supports at least the fifth resonance mode e under the excitation of the second feeding module 23.

[0103] Optional, see Figure 4 and Figure 8 , the fourth resonant current density of the fourth resonant mode d is mainly distributed between the second feeding point B and the second coupling end 211, and flows from the second feeding point B to the second coupling end 211, or flows from the second coupling end 211 to the second feeding point B. It can be understood that the above is the main current density distribution of the fourth resonant mode d, and there is also a small amount of current density distribution between the second ground end 212 and the second feeding point B and on the first radiator 11.

[0104] Specifically, the fourth resonance mode d is a mode in which the excitation current (fourth resonance current) of the second feeding module 23 resonates at a (1 / 8 to 1 / 4) wavelength from the second feeding point B to the second coupling end 211. Specifically, the length from the second feeding point B to the second coupling end 211 is designed to be approximately (1 / 8 to 1 / 4) times the wavelength of the excitation current sent by the second feeding module 23 to the second radiator 21 in the medium, so as to excite the fourth resonance mode d from the second feeding point B to the second coupling end 211.

[0105] Generally, by designing the length from the second feeding point B to the second coupling end 211 to be approximately (1 / 4) times the wavelength of the excitation current sent by the second feeding module 23 in the medium, a higher radiation efficiency is easily excited at the fourth resonant frequency f4 (the resonant frequency of the fourth resonant mode d). Furthermore, by setting a grounded capacitive matching circuit on the path of the fourth resonant current to achieve capacitive coupling and feeding into the second radiator 21, the capacitive loading can cause the resonant frequency of the fourth resonant mode d to shift toward a low frequency, and no longer follow the original requirement to produce a higher efficiency resonance at a length from the second feeding point B to the second coupling end 211 of approximately 1 / 4 wavelength, but can produce a higher efficiency resonance within the range of 1 / 8 to 1 / 4 wavelength corresponding to the length from the second feeding point B to the second coupling end 211. Therefore, while the original fourth resonant frequency f4 forms resonance, the corresponding length from the second feeding point B to the second coupling end 211 can also be shortened, for example, reduced to 1 / 8 times the wavelength corresponding to the fourth resonant frequency f4, etc., thereby further reducing the size from the second feeding point B to the second coupling end 211 and reducing the stacking length of the antenna assembly 100.

[0106] Optional, see Fig. 9, the fifth resonant current density of the fifth resonant mode e is mainly distributed between the first ground terminal 111 and the first coupling terminal 112, and flows from the first ground terminal 111 to the first coupling terminal 112, or flows from the first coupling terminal 112 to the first ground terminal 111. It can be understood that the above is the main current density distribution of the fifth resonant mode e, and there is also a small amount of current density distribution between the second coupling terminal 211 and the second ground terminal 212.

[0107] The fifth resonance mode e is a (3 / 4) wavelength mode in which the excitation current of the second feeding module 23 resonates with the first radiator 11. Specifically, the length of the first radiator 11 is designed to be approximately (3 / 4) times the wavelength of the excitation current sent by the second feeding module 23 to the first radiator 11 in the medium, so as to excite the fifth resonance mode e on the first radiator 11.

[0108] It should be noted that the above explanation of the first resonance mode a to the fifth resonance mode e from the perspective of wavelength mode is a relatively easy-to-understand explanation, which explains the main characteristic appearance of each mode and is easy to distinguish. However, when each mode is working, the first antenna unit 10 and the second antenna unit 20 are not independent, but are coupled to each other, and the current will flow to each other through coupling.

[0109] It can be understood that in the second antenna unit 20, the first radiator 11 is similar to a parasitic radiator of the second radiator 21. The fifth resonance mode e is a resonance mode generated by the second feeding module 23 exciting the parasitic radiator (the second radiator 21).

[0110] By designing the length of the first radiator 11 and the length between the second feeding point B and the second coupling end 211, the second feeding module 23 can excite the resonant mode on the first radiator 11 and the second radiator 21 between the second feeding point B and the second coupling end 211, thereby increasing the number of resonant modes that the second antenna unit 20 can support, effectively increasing the number of frequency bands and frequency band width covered by the second antenna unit 20, and improving the data transmission rate of the antenna assembly 100.

[0111] Optionally, the frequency bands supported by the fourth resonance mode d and the fifth resonance mode e include a GPS band, or an LTE 4G band, or an NR 5G band, or a Wi-Fi 2.4G band, or a Wi-Fi 5G band, or a Wi-Fi 6E band, or a combined frequency band formed by an LTE 4G band and an NR 5G band, etc. The frequency band supported by a resonance mode may be a separate LTE 4G band, or a separate NR 5G band, or a separate Wi-Fi band, or a combined frequency band formed by an LTE 4G band and an NR 5G band, etc.

[0112] In the present application, the magnitude of the resonant frequency of the fourth resonant mode d and the magnitude of the resonant frequency of the fifth resonant mode e are not limited. In this embodiment, the resonant frequency of the fourth resonant mode d is less than the resonant frequency of the fifth resonant mode e.

[0113] Furthermore, the resonant frequency of the fourth resonant mode d is greater than the resonant frequency of the third resonant mode c. Therefore, the 1 / 4 wavelength of the resonant frequency of the fourth resonant mode d is less than the 1 / 4 wavelength of the resonant frequency of the third resonant mode c. In the second radiator 21, by reasonably designing the position of the second feeding point B so that the length between the second feeding point B and the second coupling end 211 corresponds to the 1 / 4 wavelength of the resonant frequency of the fourth resonant mode d, a resonant mode is excited between the second feeding point B of the second radiator 21 and the second coupling end 211.

[0114] When the resonant frequency of the fifth resonant mode e is 3 to 6 times the resonant frequency of the first resonant mode a (for example, the first resonant mode a supports GPS-L1 band, B3 band, B1 band, N3 band, and N1 band, and the fifth resonant mode e supports Wi-Fi 5G band and Wi-Fi 6E band), the second feeding module 23 can excite a 3 / 4 wavelength mode on the first radiator 11. In this way, the first radiator 11 is reused while increasing the number of resonant modes.

[0115] The above are all reasonable size designs and feeding point position planning on the first radiator 11 and the second radiator 21, so as to generate as many high-efficiency resonant modes as possible and support the required frequency bands within the limited length of the first radiator 11 and the second radiator 21.

[0116] In this embodiment, the frequency bands supported by the fourth resonance mode d and the fifth resonance mode e both include at least one of the Wi-Fi 5G frequency band and the Wi-Fi 6E frequency band. For example, the resonance frequency of the fourth resonance mode d is 5.4751 GHz, and the resonance frequency of the fifth resonance mode e is 6.0064 GHz.

[0117] In this embodiment, the frequency bands supported by the first antenna unit 10 cover GPS-L1 band, Wi-Fi 2.4G band, LTE-4G MHB band (B3 band, B1 band, B7 band, B41 band, B38 band), NR-5G MHB band (N3 band, N1 band, N7 ​​band, N41 band), LTE-4G UHB band (B42 band, B43 band), NR-5G UHB band (N78 band); the frequency bands supported by the second antenna unit 20 cover Wi-Fi 5G band, Wi-Fi 6E band, etc., so that the second antenna unit 20 only needs to support communication signals of one communication protocol, thereby avoiding the need to set a combiner or other devices in the RF link of the second antenna unit 20 to combine communication signals of two different communication protocols, reducing the devices in the RF link, and thereby reducing the loss of the RF link of the antenna assembly 100.

[0118] In this embodiment, the first matching module M1 is provided between the first feeding point A and the first feeding module 13, and is used to select the frequency of the signal fed into the first feeding module 13. For example, the first matching module M1 selects a frequency band of 1 GHz to 7 GHz from the RF signal emitted by the first feeding module 13 to transmit to the first feeding point A, or the first matching module M1 selects a frequency band of 1 GHz to 4.5 GHz from the RF signal emitted by the first feeding module 13 to transmit to the first feeding point A. In addition, the first matching module M1 can also tune the resonant mode supported by the first antenna unit 10, so that the antenna assembly 100 resonates at the required supported frequency band, and isolates the resonant signal of the second antenna unit 20, thereby increasing the isolation between the first antenna unit 10 and the second antenna unit 20.

[0119] The first matching module M1 is described in detail below with reference to the accompanying drawings.

[0120] See also Fig.10 The first matching module M1 includes at least one first branch 14 connected in parallel to the ground and / or at least one second branch 15 connected in series between the first feeding point A and the first feeding module 13. The first branch 14 and the second branch 15 both include at least one of a capacitor and an inductor.

[0121] The first branch 14 includes but is not limited to a single capacitor branch, a single inductor branch, and at least one of the frequency-selective filtering circuits listed in the following implementations.

[0122] See also Fig.11 The first branch 14 includes a bandpass circuit formed by an inductor L0 and a capacitor C0 connected in series.

[0123] See also Fig.12 The first branch 14 includes a band-stop circuit formed by an inductor L0 and a capacitor C0 connected in parallel.

[0124] See also Fig.13 The first branch 14 includes a bandpass or band-stop circuit formed by 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.

[0125] See also Fig.14 The first branch 14 includes a bandpass or band-stop circuit formed by 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.

[0126] See also Fig.15 The first branch 14 includes a bandpass or band-stop circuit formed by 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.

[0127] See also Fig.16 The first branch 14 includes a bandpass or band-blocking circuit formed by 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.

[0128] See also Fig.17 The first branch 14 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.

[0129] See also Fig.18 The first branch 14 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 101, the second capacitor C2 and the second inductor L2 are connected in series to form a second unit 102, and the first unit 101 and the second unit 102 are connected in parallel.

[0130] The second branch 15 includes but is not limited to a single capacitor grounding branch, a single inductor grounding branch, Figures 11 to 18 At least one of the grounding branches listed in any one of the embodiments.

[0131] The first matching module M1 is used to tune at least one of the resonant frequency of the first resonant mode a, the resonant frequency of the second resonant mode b, and the resonant frequency of the third resonant mode c. For example, when the antenna assembly 100 is used to support the LTE / NR-MHB+WiFi-2.4GHz+N78 frequency band, by setting the structure of the first matching module M1 and designing the values ​​of each component, the first resonant mode a and the second resonant mode b can support LTE / NR-MHB, the second resonant mode b can support the WiFi-2.4GHz frequency band, and the third resonant mode c can support the N78 frequency band.

[0132] For example, see Fig.10 , at least one first branch 14 includes a first sub-branch 141, a second sub-branch 142, and a third sub-branch 143. One end of the first sub-branch 141 is electrically connected to the first feeding point A. The other end of the first sub-branch 141 is electrically connected to the third reference ground GND3, and the first sub-branch 141 includes a separate capacitor branch, or a series branch of a capacitor and an inductor. In this embodiment, the first sub-branch 141 is a separate capacitor branch, denoted as C11.

[0133] In this implementation, please refer to Fig.10 , one end of the second sub-branch 142 is electrically connected to the first feeding point A. The other end of the second sub-branch 142 is electrically connected to the third reference ground GND3, and the second sub-branch 142 includes an inductor, or an inductor and a capacitor. In this embodiment, the second sub-branch 142 is a separate inductor branch, denoted as L11. In other embodiments, the second sub-branch 142 can also be a series branch of an inductor and a capacitor.

[0134] See also Fig.10 , the other end of the third sub-branch 143 is electrically connected to the third reference ground GND3. The third sub-branch 143 includes a capacitor, or a capacitor and an inductor. In this embodiment, the third sub-branch 143 is a separate capacitor branch, denoted as C13. In other embodiments, the third sub-branch 143 can also be a series branch of an inductor and a capacitor.

[0135] See also Fig.10 , at least one second branch 15 includes a fourth sub-branch 151 and a fifth sub-branch 152 .

[0136] See also Fig.10 , one end of the fourth sub-branch 151 is electrically connected to the first feeding point A. The other end of the fourth sub-branch 151 is electrically connected to an end of the third sub-branch 143 away from the third reference ground GND3, and the fourth sub-branch 151 includes a capacitor, or a capacitor and an inductor. In this embodiment, the fourth sub-branch 151 is a capacitor, denoted as C12. In other embodiments, the fourth sub-branch 151 also includes a series branch of a capacitor and an inductor.

[0137] See also Fig.10 One end of the fifth sub-branch 152 is electrically connected to the other end of the fourth sub-branch 151, and the other end of the fifth sub-branch 152 is electrically connected to the first feeding module 13. The fifth sub-branch 152 includes an inductor. In this embodiment, the fifth sub-branch 152 is an inductor, which is denoted as L12.

[0138] The above is only an example of an implementation of the first matching module M1. In other implementations, a branch may be added between the first sub-branch 141 and the first feeding point A, or a branch may be added between the fourth sub-branch 151 and the first feeding point A.

[0139] Among them, combined with reference Figure 3 , Figure 4 and Fig.10 , the first sub-branch 141, the third sub-branch 143 and the fifth sub-branch 152 are used to tune the second resonance mode b and the third resonance mode c. The second sub-branch 142 and the fourth sub-branch 151 are used to tune the first resonance mode a. Specifically, the first sub-branch 141 (C11) is used to tune the resonance points of the second resonance mode b and the third resonance mode c, so that the third resonance mode c covers the N 78 frequency band, and the second resonance mode b covers the N41 frequency band. In addition, the first sub-branch 141 (C11) can also isolate the WIFI-5G and WIFI-6E frequency bands in the second antenna unit 20 to prevent the WIFI-5G and WIFI-6E frequency bands from interfering with the first antenna unit 10, thereby improving the isolation between the first antenna unit 10 and the second antenna unit 20. The third sub-branch 143 (C13) and the fifth sub-branch 152 (L12) can both tune the second resonance mode b and the third resonance mode c. For example, C11=1p F, L11=4.3nH, C12=1pF, C13=0.5pF, L12=3.3nH, so that the first resonance mode a can efficiently support LTE / NR-MHB, the second resonance mode b can efficiently support WIFI 2.4G and N41 frequency bands, and the third resonance mode c can efficiently support the N78 frequency band.

[0140] Please refer to Fig.19, the first matching module M1 further includes at least one adjustable branch T electrically connected to the third reference ground GND3. The present application does not specifically limit the position of the adjustable branch T, and the adjustable branch T may be the first sub-branch 141, or the second sub-branch 142, or the third sub-branch 143, or a branch newly added between the first feeding point A and the first sub-branch 141, or a branch newly added between the first sub-branch 141 and the second sub-branch 142, or a branch newly added between the third sub-branch 143 and the fourth sub-branch 144, etc. The adjustable branch T is used to tune the resonant frequencies of the first resonant mode a and the third resonant mode c. Specifically, the adjustable branch T is used to adjust the position of the resonant frequency point of the first resonant mode a and the position of the resonant frequency point of the third resonant mode c, so as to expand the first resonant mode a and the third resonant mode c to support the required frequency band range. For example, the first matching module M1 provided with the adjustable branch T moves the resonant frequency of the first resonant mode a from 1.77 GHz to 1.92 GHz, and moves the resonant frequency of the third resonant mode c from 3.6 GHz to 3.7 GHz. In this way, the frequency band range that the antenna assembly 100 can support is realized.

[0141] The present application does not limit the specific structure of the adjustable branch T. Optionally, the adjustable branch T includes at least one of a switch circuit and an adjustable capacitor. The switch circuit includes but is not limited to multiple branches of switches + capacitors, multiple branches of switches + resistors, multiple branches of switches + inductors, multiple branches of switches + inductors + capacitors, etc.

[0142] For example, see Fig. 20 , the adjustable branch T is a part of the second branch 15. More specifically, the adjustable branch T includes a switch and a plurality of inductance devices with different inductance values ​​arranged in parallel.

[0143] Please refer to Fig.21 , the inductance value of L111 is 4.3nH, and the inductance value of L112 is 3nH. The switch includes but is not limited to a "single-pole multiple-throw" or "multi-pole multiple-throw" switch. Fig.21 In the figure, S21 is the S parameter curve of the first antenna unit 10 when the switch L111 is turned on to the first matching module M1; S21` is the S parameter curve of the first antenna unit 10 when the switch L112 is turned on to the first matching module M1; S22 is the S parameter curve of the second antenna unit 20 when the switch L111 is turned on to the first matching module M1; S22` is the S parameter curve of the second antenna unit 20 when the switch L112 is turned on to the first matching module M1; S23 is the isolation curve between the first antenna unit 10 and the second antenna unit 20 when the switch L111 is turned on to the first matching module M1; S23` is the isolation curve between the first antenna unit 10 and the second antenna unit 20 when the switch L112 is turned on to the first matching module M1.

[0144] When the switch L111 is turned on to the first matching module M1, the resonant frequency of the first resonance mode a is 1.77 GHz, and the resonant frequency of the second resonance mode b is 3.6 GHz; when the switch L112 is turned on to the first matching module M1, the resonant frequency of the first resonance mode a is 1.92 GHz, and the resonant frequency of the second resonance mode b is 3.7 GHz.

[0145] When the first matching module M1 is provided with an adjustable branch T, this embodiment also designs the position of the first feeding point A, etc., so that the adjustable branch T can tune the first resonance mode a and the third resonance mode c, but will not affect or less affect the second resonance mode b, the fourth resonance mode d and the fifth resonance mode e. Therefore, while ensuring that the first matching module M1 tunes the first resonance mode a and the third resonance mode c to increase the LTE 4G / NR 5G frequency band range that the antenna assembly 100 can support and improve the performance of each frequency band, it can also ensure that the antenna assembly 100 can continue to support WiFi 2.4G, WiFi 5G, and WiFi 6E signals.

[0146] According to the above wavelength mode analysis of the resonances of the second resonance mode b, the fourth resonance mode d, and the fifth resonance mode e on the first radiator 11 and the second radiator 21, it can be seen that the tuning at the first feeding point A has a relatively small effect on the resonances of the second resonance mode b and the fourth resonance mode d, and a relatively large effect on the resonance of the fifth resonance mode e.

[0147] For the fifth resonance mode e, the current density distribution of the first radiator 11 increases first, then decreases, and then increases again from the first coupling end 112 to the first ground end 111 (for example, Fig.19 ), wherein the current intensity point of the first radiator 11 is located at about 1 / 3 of the length from the first coupling end 112 to the first ground end 111. The length between the first feeding point A and the first ground end 111 is (1 / 3 to 1) times the length of the first radiator 11. Optionally, the first feeding point A is located at or near the current intensity point of the first radiator 11.

[0148] The first feeding point A is set to be located at or near the current strong point of the first radiator 11. The length between the first feeding point A and the first ground terminal 111 is (1 / 3 to 1) times the length of the first radiator 11. Furthermore, the length between the first feeding point A and the first coupling terminal 112 is approximately 1 / 3 times the length of the first radiator 11, so that the first feeding point A is located at a position where the current is relatively strong. When the first feeding point A is located at a position where the current is relatively strong, an adjustable branch T is set in the first matching module M1, and the adjustable branch T has a relatively small effect on the fifth resonant mode e. When the first feeding point A is located at or near the current intensity point of the first radiator 11, and L111 in the adjustable branch T is switched to L112, it can be seen from the figure that the positions of the resonance points of the fourth resonance mode d and the fifth resonance mode e remain unchanged. In this way, the LTE 4G / NR 5G frequency band range that can be supported by the antenna assembly 100 is increased, and it can also be ensured that the antenna assembly 100 can continue to support WiFi signals, so that the antenna assembly 100 can always support LTE 4G / NR 5G and WiFi signals.

[0149] In this embodiment, the second matching module M2 is provided between the second feeding point B and the second feeding module 23, and is used to select the frequency of the signal fed into the second feeding module 23. For example, the second matching module M2 selects a frequency band of 4.5 GHz to 7 GHz from the RF signal emitted by the second feeding module 23 to transmit to the second feeding point B, or the second matching module M2 selects a frequency band of 4.5 GHz to 7 GHz from the RF signal emitted by the second feeding module 23 to transmit to the second feeding point B. In addition, the second matching module M2 can also tune the resonant mode supported by the second antenna unit 20 so that the antenna assembly 100 resonates at the required supported frequency band; and isolate the resonant signal of the first antenna unit 10 to increase the isolation between the first antenna unit 10 and the second antenna.

[0150] The second matching module M2 is described in detail below with reference to the accompanying drawings.

[0151] See also Fig. 22, the second matching module M2 includes at least one third branch 16 connected in parallel to the ground and / or at least one fourth branch 17 connected in series between the second feeding point B and the second feeding module 23. The third branch 16 and the fourth branch 17 both include at least one of a capacitor and an inductor. The second matching module M2 is used to conduct the frequency band supported by the fourth resonance mode d and the fifth resonance mode e (for example, the WiFi 5G frequency band), and block the frequency band less than the frequency band supported by the fourth resonance mode d and the fifth resonance mode e (for example, the frequency band supported by the first antenna unit 10), increase the isolation between the first antenna unit 10 and the second antenna unit 20, and tune the resonant frequency of the fourth resonance mode d and / or the resonant frequency of the fifth resonance mode e, so that the fourth resonance mode d and the fifth resonance mode e support the WiFi 5G and WiFi 6E frequency bands.

[0152] The third branch 16 includes but is not limited to a single capacitor branch, a single inductor branch, and Figures 11 to 18 At least one of the enumerated frequency selective filtering circuits.

[0153] The fourth branch 17 includes but is not limited to a single capacitor branch, a single inductor branch, and Figures 11 to 18 At least one of the enumerated frequency selective filtering circuits.

[0154] For example, see Fig. 22 At least one of the third branches 16 includes a sixth sub-branch 161 and a seventh sub-branch 162. One end of the sixth sub-branch 161 is electrically connected to the second feeding point B, and the other end of the sixth sub-branch 161 is electrically connected to one end of the seventh sub-branch 162. The sixth sub-branch 161 includes an inductor and a capacitor connected in parallel, which are denoted as C21 and L21.

[0155] The other end of the seventh sub-branch 162 is electrically connected to the second feeding module 23, and the seventh sub-branch 162 includes a capacitor, or an inductor, or an inductor and a capacitor in parallel. In this embodiment, the seventh sub-branch 162 is an inductor, which is denoted as L22.

[0156] See also Fig. 22 , at least one of the fourth branches 17 includes an eighth sub-branch. One end of the eighth sub-branch is electrically connected to the second feeding module 23, and the other end of the eighth sub-branch is electrically connected to the fourth reference ground GND4, and the eighth sub-branch includes at least one of a capacitor and an inductor. In this embodiment, the eighth sub-branch is an inductor, which is recorded as L23.

[0157] The above is only an example of an implementation of the second matching module M2. In other implementations, a branch may be added between the sixth sub-branch 161 and the second feeding point B.

[0158] Among them, the sixth sub-branch 161 (L21, C21) and the seventh sub-branch 162 (L22) are used to block the WiFi 2.4G frequency band, the frequency band of the second resonance mode b, the frequency band of the third resonance mode c, and the frequency band of WiFi 5G and WiFi 6E. For example, L21 = 13nH, C21 = 0.3pF, L22 = 2.7nH, and the sixth sub-branch 161 and the seventh sub-branch 162 are low impedance or bandpass for the WIFI 5G frequency band to conduct the WIFI 5G frequency band, and can also effectively filter out the frequency band less than the WIFI 5G frequency band, thereby reducing the influence of the frequency band signal supported by the first antenna unit 10 on the second antenna unit 20. The eighth sub-branch L23 plays a tuning role on WiFi 5G, and plays an isolation role on the frequency band supported by the first resonance mode a, so as to reduce the influence of the signal supported by the first antenna unit 10 on the second antenna unit 20. For example, L23 = 1.5 nH.

[0159] from Figure 4 From the isolation curve S2,1 between the first antenna unit 10 and the second antenna unit 20 shown in the figure, it can be seen that the isolation values ​​corresponding to 1-3 GHz and 6-7 GHz are below -25, and the isolation value shown in the figure is also below -15, indicating that there is a high degree of isolation between the first antenna unit 10 and the second antenna unit 20. Through the design of the first matching module M1 and the second matching module M2, the first antenna unit 10 and the second antenna unit 20 have a high degree of isolation, which is conducive to improving the efficiency of the first antenna unit 10 and the second antenna unit 20 in sending and receiving antenna signals. Figure 4 It can be seen that after the adjustable branch T is set in the first matching module M1, there is still a high degree of isolation between the first antenna unit 10 and the second antenna unit 20.

[0160] The above is an antenna assembly 100 provided in the first embodiment, which includes a coupled first antenna unit 10 and a second antenna unit 20, realizing a common aperture design of LTE 4G / NR 5G / WiFi signals; the antenna assembly 100 supports multiple resonance modes at the same time, realizes an ultra-wideband design through carrier aggregation technology, and at the same time, the antenna assembly 100 can support the dual connection technology of LTE 4G / NR 5G; wherein, the application reasonably designs the length of the first radiator 11, the position of the first feeding point A, and the length of the second radiator 21, so that the first antenna unit 10 can support the LTE 4G / NR 5G medium-high frequency and ultra-high frequency, WiFi 2.4G frequency band, and the second antenna unit 20 supports the WiFi 5G and WiFi 6E frequency bands. The second antenna unit 20 supports the WiFi frequency band alone, without the need to set up a combiner or other devices, so as to reduce the loss of the second antenna unit 20 and improve the radiation efficiency of the antenna assembly 100.

[0161] The antenna assembly 100 is provided in the electronic device 1000, and the electronic device 1000 is taken as a mobile phone as an example. The present application does not limit the specific position where the radiator of the antenna assembly 100 is installed in the electronic device 1000. The radiator of the antenna assembly 100 is integrated in the housing 200, or is provided on the surface of the housing 200, or is provided in the space surrounded by the housing 200.

[0162] See also Fig.23 The electronic device 1000 includes a reference ground GND disposed in a housing 200, a circuit board 500 (see Figure 2 ) etc. The reference ground GND includes but is not limited to the alloy in the middle plate 410. The reference ground GND includes the first reference ground GND1 to the seventh reference ground GND7 mentioned above.

[0163] The first feeding module 13 , the second feeding module 23 , the first matching module M1 , and the second matching module M2 are all disposed on the circuit board 500 .

[0164] The first radiator 11 and the second radiator 21 may be integrated into the housing 200 , or disposed on a surface of the housing 200 , or disposed in a space surrounded by the housing 200 .

[0165] Optionally, at least part of the first radiator 11 and the second radiator 21 are integrated with the frame 210 of the housing 200. For example, the frame 210 is made of metal. The first radiator 11, the second radiator 21 and the frame 210 are integrated into one. The first coupling gap 140 between the first radiator 11 and the second radiator 21 is filled with an insulating material. Of course, in other embodiments, the first radiator 11 and the second radiator 21 can also be integrated with the back cover 220. In other words, the first radiator 11 and the second radiator 21 are integrated into a part of the housing 200.

[0166] Optionally, the first radiator 11 and the second radiator 21 are formed on the surface of the frame 210 (for example, the inner surface or the outer surface of the frame 210). Specifically, the basic forms of the first radiator 11 and the second radiator 21 include but are not limited to patch radiators, formed on the inner surface of the frame 210 by laser direct structuring (LDS) and print direct structuring (PDS) and other processes. In this embodiment, the material of the frame 210 can be a non-conductive material (non-shielding material for electromagnetic wave signals, or a wave-transmitting structure). Of course, the first radiator 11 and the second radiator 21 can also be arranged on the surface of the back cover 220.

[0167] Optionally, the first radiator 11 and the second radiator 21 are arranged on a flexible circuit board, a hard circuit board or other supporting board. The first radiator 11 and the second radiator 21 can be integrated on the flexible circuit board, and the flexible circuit board is attached to the inner surface of the middle frame 420 by adhesive or the like. In this embodiment, the material of the frame 210 can be a non-conductive material. Of course, the first radiator 11 and the second radiator 21 can also be arranged on the inner surface of the back cover 220.

[0168] The above is a specific structure of an antenna assembly 100 for detecting proximity of a subject to be detected and transmitting antenna signals, as well as the installation positions of various components in the antenna assembly 100 in the electronic device 1000. Of course, in this application, the number of antenna assemblies 100 is one or more.

[0169] The present application does not limit the specific side where the antenna assembly 100 is located in the electronic device 1000. The reference ground GND is in the shape of a rectangular plate. The reference ground GND includes a plurality of sides connected in sequence. The connection between two adjacent sides is a corner.

[0170] The first radiator 11 and the second radiator 21 of at least one antenna assembly 100 are arranged opposite to two intersecting sides and a corner; and / or the first radiator 11 and the second radiator 21 of at least one antenna assembly 100 are all arranged opposite to one side. The following embodiments are used as examples for specific description.

[0171] See also Fig.23 The reference ground GND includes a first side edge 61 and a second side edge 62 that are arranged opposite to each other, and a third side edge 63 and a fourth side edge 64 that are connected between the first side edge 61 and the second side edge 62. The connection between two adjacent side edges is a corner 65. The first side edge 61 is the top edge of the reference ground GND (with the state of the user holding the electronic device 1000 in a vertical position as a reference), and the second side edge 62 is the bottom edge of the reference ground GND.

[0172] See also Fig.23 , the frame 210 includes a plurality of side frames connected end to end. Among the plurality of side frames of the frame 210, two adjacent side frames intersect, for example, two adjacent side frames are connected by arc chamfer transition. The plurality of side frames include a top frame 2101 and a bottom frame 2102 arranged relatively, and a first side frame 2103 and a second side frame 2104 connected between the top frame 2101 and the bottom frame 2102. Wherein, the top frame 2101 is the side away from the ground when the operator holds the electronic device 1000 toward the front of the electronic device 1000, and the bottom frame 2102 is the side facing the ground. The connection between the two adjacent side frames is a corner portion 2106. Wherein, the top frame 2101 and the bottom frame 2102 are parallel and equal. The first side frame 2103 and the second side frame 2104 are parallel and equal. The length of the first side frame 2103 is greater than the length of the top frame 2101. The top frame 2101 is arranged opposite to the first side 61 , the bottom frame 2102 is arranged opposite to the second side 62 , the first side frame 2103 is arranged opposite to the third side 63 , and the second side frame 2104 is arranged opposite to the fourth side 64 .

[0173] The antenna assembly 100 is disposed on at least one of the top frame 210 , the first side frame 2103 , the second side frame 2104 , and the bottom frame 210 .

[0174] In one embodiment, see Fig.23 , the number of antenna components 100 is one. The first radiator 11 and the second radiator 21 of the antenna component 100 are integrated with the first side frame 2103. The first coupling slot 140 is close to or located in the middle of the first side frame 2103.

[0175] See also Fig.24 , Fig.24The dotted boxes on both sides are the finger holding areas. When the user holds the electronic device 1000 in landscape mode (for example, playing games or watching videos in landscape mode), the holding position of the user's hands is relatively far away from the middle position of the first frame 210213, so that the first coupling slot 140 is far away from the user's hand-holding position. The closer the user's finger is to the electric field strength point of the antenna assembly 100 (the first coupling slot 140), the greater the interference effect on the antenna assembly 100. Therefore, by arranging the antenna assembly 100 on the first side frame 2103 and making the first coupling slot 140 far away from the hand-holding position of the user holding the electronic device 1000 in landscape mode, the first coupling slot 140 avoids the user's fingers when the user holds the electronic device 1000 in landscape mode to play games, etc., so that it is not blocked. Optionally, the distance between the position of the first coupling slot 140 and the top frame or bottom frame 210 is more than 40 mm, so that the first antenna unit 10 and the second antenna unit 20 still have a high radiation efficiency, thereby improving the user's experience of using the electronic device 1000.

[0176] Fig.25 1 is an efficiency curve when the antenna assembly 100 is disposed on the side of the electronic device 1000 . Fig.25 The S11 curve is a system radiation efficiency curve of the first antenna unit 10 . Fig.25 The S12 curve is a system radiation efficiency curve of the second antenna unit 10 . Fig.25 The S13 curve is the system total efficiency curve of the first antenna unit 10 . Fig.25 The S14 curve is the total system efficiency curve of the first antenna unit 10. Due to the small side clearance, the radiation environment of the antenna assembly 100 is relatively harsh, but Fig.25 As can be seen from the marks 1 to 6 in the figure, within the frequency band supported by the first resonance mode a to the fifth resonance mode e, the efficiency is relatively high (for example, Fig.24 -6dB and above is a reference line with relatively high efficiency) to meet the application of the antenna assembly 100 in the electronic device 1000.

[0177] Of course, in other implementations, see Fig.26, the number of antenna assemblies 100 is multiple, for example, two antenna assemblies 100 are respectively located on the first side frame 2103 and the second side frame 2104. The structures and supported frequency bands of the two antenna assemblies 100 may be the same or different. When both antenna assemblies 100 have coupling slots, the coupling slots of the two antenna assemblies 100 are respectively arranged at or near the middle position of the first side frame 2103 and the second side frame 2104 to reduce the obstruction of the antenna assembly 100 when the user holds the device in horizontal position, thereby reducing the impact on the efficiency of the antenna assembly 100. At the same time, the two antenna assemblies 100 can be switched with each other, so that the electronic device 1000 can communicate in more frequency bands or at a wider bandwidth, thereby improving the communication quality of the electronic device 1000.

[0178] Of course, in other implementations, see Fig. 27 The first radiator 11 and the second radiator 21 of the antenna assembly 100 may also be integrated near a corner of the top frame 210 , or at any other location on the electronic device 1000 .

[0179] It can be seen from the above-mentioned implementation methods that the present application realizes that the electronic device 1000 has higher radiation performance in the horizontal screen mode, and can realize the simultaneous existence of LTE 4G / NR 5G / WiFi.

[0180] The antenna assembly 100 provided in the second embodiment of the present application is described below in conjunction with the accompanying drawings. The antenna assembly 100 provided in this embodiment includes the antenna assembly 100 provided in the first embodiment, and the main difference is that Fig.28 and Fig.29 , the antenna assembly 100 provided in this embodiment also includes a third radiator 31, a third feeding module 33 and a third matching module M3. In order to facilitate the functional division of different parts of the antenna assembly 100 for subsequent description, the third radiator 31, the third feeding module 33 and the third matching module M3 are defined as the third antenna unit 30. The third radiator 31 includes a third grounding terminal 311 and a first free end 312, and a third feeding point C arranged between the third grounding terminal 311 and the first free end 312. The third grounding terminal 311 is arranged at intervals with the first grounding terminal 111 or connected by a conductor. The third grounding terminal 311 is electrically connected to the fifth reference ground GND5. The third feeding module 33 is electrically connected to the third feeding point C. The third matching module M3 is electrically connected between the third feeding point C and the third feeding module 33. Of course, in other embodiments, the positions of the first antenna unit 10 and the second antenna unit 20 can be interchanged.

[0181] Optional, see Fig.28 and Fig.30, the first radiator 11 and the second radiator 12 are arranged on the first side frame 2103, so that when the electronic device 1000 is used in landscape mode, the first coupling gap 140 is away from the user's hand, thereby increasing the radiation efficiency when the electronic device 1000 is used in landscape mode. The third radiator 31 is arranged at the corner portion 2106 between the first side frame 2103 and the top frame 2101. Since the corner portion 2106 has a relatively good clearance area and the corner portion 2106 is more likely to excite a higher reference ground current, the radiation efficiency of the third antenna unit 30 is improved. The present application does not limit the frequency band covered by the third antenna unit 30. Optionally, the third antenna unit 30 may cover (GPS-L1) + (WIFI 2.4G) + (LTE / NR-MHB + UHB). The structure and size of the third antenna unit 30 may refer to the structure and size of the first antenna unit 10.

[0182] Optional, see Fig.30 , a conductor is added between the first ground terminal 111 and the third ground terminal 311 to connect the first radiator 11 and the third radiator 31. Further, when the first radiator 11, the second radiator 21 and the third radiator 31 are all integrated on the frame 210, the first radiator 11 and the third radiator 31 may not be cut off, that is, a part of the frame 210 is used as the first radiator 11, and another part of the frame 210 is used as the third radiator 31. In other words, the first radiator 11 and the third radiator 31 form a common radiator 32.

[0183] Optional, see Fig.31 The antenna assembly 100 also includes a fourth matching module M4. One end of the fourth matching module M4 is electrically connected to the first ground terminal 111, and the other end of the fourth matching module M4 is electrically connected to the first reference ground GND1. The fourth matching module M4 is in a low impedance state for the frequency band supported by the resonant mode (e.g., the first resonant mode a) in the first antenna unit 10 and the second antenna unit 20 that needs to be returned to the ground at the first ground terminal 111. For example, the fourth matching module M4 is an inductor so that the resonant current of the resonant mode that needs to be returned to the ground at the first ground terminal 111 returns to the ground.

[0184] Optional, see Fig.31 , the antenna assembly 100 further includes a fifth matching module M5. One end of the fifth matching module M5 is electrically connected to the third ground terminal 311, and the other end of the fifth matching module M5 is electrically connected to the fifth reference ground GND5. The fifth matching module M5 is in a low impedance state for the frequency band supported by the resonant mode (e.g., the fifth resonant mode e) in the third antenna unit 30 that needs to be returned to the ground. For example, the fifth matching module M5 is an inductor so that the resonant current of the resonant mode in the third antenna unit 30 that needs to be returned to the ground at the first ground terminal 111 returns to the ground.

[0185] In this embodiment, the antenna assembly 100 includes a fourth matching module M4 and a fifth matching module M5. In other embodiments, the antenna assembly 100 may include only the fourth matching module M4 or only the fifth matching module M5.

[0186] See also Fig.32 , it is defined that the first radiator 11 and the third radiator 31 are electrically connected to form a common radiator 32 . When the common body radiator 32 also serves as an inductive electrode for detecting the approach of a subject to be measured (for example, a head or a hand of a human body), the fourth matching module M4 includes a capacitive device directly electrically connected to the first ground terminal 111 or a capacitive device is arranged between the fourth matching module M4 and the first ground terminal 111; the fifth matching module M5 includes a capacitive device directly electrically connected to the third ground terminal 311 or a capacitive device is arranged between the fifth matching module M5 and the third ground terminal 311; the first matching module M1 includes a capacitive device directly electrically connected to the first feeding point A or a capacitive device is arranged between the first feeding point A and the first matching module M1; the third matching module M3 includes a capacitive device directly electrically connected to the third feeding point C or a capacitive device is arranged between the third feeding point C and the third matching module M3; wherein the capacitive device is, for example, a capacitor or a circuit including a capacitor, etc., and the capacitive device makes the common body radiator 32 in a "suspended state" relative to the direct current to isolate the induction signal generated when the subject to be measured approaches from affecting the antenna signal.

[0187] Optionally, the fourth matching module M4 and the fifth matching module M5 include a switch selection circuit, for example, an inductor branch and a capacitor branch arranged in parallel. When the common body radiator 32 needs to detect the approach of a human body, the switch is controlled to connect the capacitor to the first ground terminal 111; when the common body radiator 32 does not need to detect the approach of a human body, the switch is controlled to connect the inductor to the first ground terminal 111.

[0188] Optionally, the fourth matching module M4 and the fifth matching module M5 further include a branch of a capacitor and an inductor, wherein the capacitor is electrically connected between the first ground terminal 111 and the inductor, and the capacitor makes the common body radiator 32 in a "suspended state" relative to the direct current, and the branch of the capacitor and the inductor is in a low impedance state for the frequency band corresponding to the resonant mode that needs to be returned to the ground from the first ground terminal 111 and the third ground terminal 311.

[0189] See also Fig.32, the fourth matching module M4 and the fifth matching module M5 are used for DC isolation matching, so that the common radiator 32 can be used as a SAR (specific absorption rate) detection part. Optionally, a DC isolation capacitor C31 / C32 / C33 / C34 (the capacitance value is, for example, 22pF, which has little effect on the antenna signal) is added before the first matching module M1, the second matching module M2, the fourth matching module M4, and the fifth matching module M5. If the first matching module M1, the second matching module M2, the fourth matching module M4, and the fifth matching module M5 already have a DC isolation capacitor, there is no need to add C31 / C32 / C33 / C34. At this time, the common radiator 32 is suspended for the sensing signal, and the proximity sensor needs a suspended metal body to sense the capacitance change caused by the human body approaching, so as to achieve the purpose of detection. A detection circuit is added before C33, and an inductor L is added to the detection circuit to isolate higher frequencies (for example, the inductance is 82nH), so that the antenna is basically unaffected. The detection circuit can also be placed in front of C31 / C32 / C34 or at any position of the antenna radiator. By detecting the human body on the antenna radiator, the human body approaching state can be judged, thereby achieving the purpose of intelligent SAR reduction.

[0190] The above is an implementation of the common radiator 32 as a sensing electrode. In other implementations, the second radiator 21 can also be used as a sensing electrode. The antenna assembly 100 provided in the third implementation is taken as an example for detailed description.

[0191] The specific structure of the antenna assembly 100 provided in the third embodiment of the present application is described below with reference to the accompanying drawings.

[0192] Optional, see Fig.33 , the antenna assembly 100 also includes a fourth radiator 41, a fourth feeding module 43 and a sixth matching module M6. In order to facilitate the functional division of different parts of the antenna assembly 100 for subsequent description, the fourth radiator 41, the fourth feeding module 43 and the sixth matching module M6 are defined as the fourth antenna unit 40. The fourth radiator 41 includes a fourth ground terminal 411 and a second free end 412, and a fourth feeding point D arranged between the fourth ground terminal 411 and the second free end 412. A second coupling gap 150 is provided between the fourth ground terminal 411 and the first free end 312. The third radiator 31 and the fourth radiator 41 are coupled through the second coupling gap 150. The fourth ground terminal 411 is electrically connected to the sixth reference ground GND6. The fourth feeding module 43 is electrically connected to the fourth feeding point D. The sixth matching module M6 is electrically connected between the fourth feeding point D and the fourth feeding module 43.

[0193] In this embodiment, the third radiator 31 and the fourth radiator 41 are coupled with each other so that the excitation current sent by the fourth feeding module 43 can not only form resonance on the fourth radiator 41, but also form resonance on the third radiator 31, and the excitation current sent by the third feeding module 33 can not only form resonance on the third radiator 31, but also form resonance on the fourth radiator 41, so as to increase the resonant mode generated by the third antenna unit 30 and the fourth antenna unit 40, thereby increasing the bandwidth and the number of frequency bands supported by the third antenna unit 30 and the fourth antenna unit 40.

[0194] Optionally, the third radiator 31 and the fourth radiator 41 can jointly serve as the radiator of the third antenna unit 30, and the third radiator 31 and the fourth radiator 41 can also jointly serve as the radiator of the fourth antenna unit 40, so that the third antenna unit 30 and the fourth antenna unit 40 form a co-aperture antenna to achieve radiator reuse, thereby increasing the number of resonant modes while reducing the stacking size of the radiators of the third antenna unit 30 and the fourth antenna unit 40.

[0195] Optionally, the first radiator 11 is electrically connected to the third radiator 31. The first antenna unit 10, the second antenna unit 20, the third antenna unit 30 and the fourth antenna unit 40 form a common aperture antenna.

[0196] In the antenna assembly 100 provided in this embodiment, the resonant modes and resonant currents on the first antenna unit 10 and the second antenna unit 20 refer to the antenna assembly 100 provided in the first embodiment, and are not described in detail here.

[0197] See also Fig.34 , Fig.34 is an S parameter curve diagram of the first antenna unit 10. The resonant frequency of the first resonant mode a is 1.88 GHz, the resonant frequency of the second resonant mode b is 2.6323 GHz, and the resonant frequency of the third resonant mode c is 3.5707 GHz.

[0198] See also Fig.35 , Fig.35 is an S parameter curve diagram of the second antenna unit 20. The resonant frequency of the fourth resonant mode d is 5.4751 GHz, and the resonant frequency of the fifth resonant mode e is 5.9643 GHz.

[0199] The resonance modes and resonance currents of the third antenna unit 30 and the fourth antenna unit 40 are described below with reference to the accompanying drawings.

[0200] See also Fig.36 , the third antenna unit 30 is used to support the sixth resonance mode f, the seventh resonance mode g and the eighth resonance mode h.

[0201] See also Fig.37 , the sixth resonant current density of the sixth resonant mode f is mainly distributed between the third ground terminal 311 and the first free end 312, and flows from the third ground terminal 311 to the first free end 312, or from the first free end 312 to the third ground terminal 311. It can be understood that the above is the main current density distribution of the sixth resonant mode f, and there is also a small amount of current density distribution on the fourth radiator 41.

[0202] The sixth resonance mode f is a (1 / 8 to 1 / 4) wavelength mode in which the excitation current of the third feeding module 33 resonates on the third radiator 31. Specifically, the length of the third radiator 31 is designed to be approximately (1 / 8 to 1 / 4) times the wavelength of the excitation current sent by the third feeding module 33 to the third radiator 31 in the medium, so as to excite the sixth resonance mode f on the third radiator 31, and have a higher radiation efficiency in the frequency band supported by the sixth resonance mode f.

[0203] Generally, by designing the length of the third radiator 31 to be approximately (1 / 4) times the wavelength of the excitation current sent by the third feeding module 33 to the third radiator 31 in the medium, it is easy to excite a higher radiation efficiency at the sixth resonant frequency (the resonant frequency of the sixth resonant mode f). Further, by setting a grounded capacitive matching circuit on the path of the sixth resonant current to achieve capacitive coupling feeding into the third radiator 31, the capacitive loading can cause the resonant frequency of the sixth resonant mode f to shift toward a low frequency, and no longer follow the original need to generate a higher efficiency resonance at a length of the third radiator 31 of approximately 1 / 4 wavelength, but can generate a higher efficiency resonance within the range of 1 / 8 to 1 / 4 wavelength corresponding to the length of the third radiator 31. Therefore, while the resonance is formed at the original sixth resonant frequency, the length of the corresponding third radiator 31 can also be shortened, for example, reduced to 1 / 8 times the wavelength corresponding to the sixth resonant frequency, etc., further reducing the size of the third radiator 31 and reducing the stacking length of the antenna assembly 100.

[0204] See also Fig.38 , the seventh resonant current density of the seventh resonant mode g is mainly distributed between the third feeding point C and the first free end 312, and flows from the third feeding point C to the first free end 312, or, flows from the first free end 312 to the second feeding point B. It can be understood that the above is the main current density distribution of the seventh resonant mode g, and there is also a small amount of current density distribution from the third ground terminal 311 to the third feeding point C and the fourth radiator 41.

[0205] The seventh resonance mode g is a (1 / 8 to 1 / 4) wavelength mode in which the excitation current of the third feeding module 33 resonates from the third feeding point C to the first free end 312. Specifically, by designing the length from the third feeding point C to the first free end 312 to be approximately (1 / 8 to 1 / 4) times the wavelength of the excitation current sent from the third feeding module 33 to the third feeding point C to the first free end 312 in the medium, the seventh resonance mode g is excited from the third feeding point C to the first free end 312, and a higher radiation efficiency is achieved in the frequency band supported by the seventh resonance mode g.

[0206] Generally, by designing the length from the third feeding point C to the first free end 312 to be approximately (1 / 4) times the wavelength of the excitation current sent from the third feeding module 33 to the third feeding point C to the first free end 312 in the medium, a higher radiation efficiency can be easily excited at the seventh resonant frequency (the resonant frequency of the seventh resonant mode g). Furthermore, by setting a grounded capacitive matching circuit on the path of the seventh resonant current to achieve capacitive coupling feeding from the third feed point C to the first free end 312, the capacitive loading can cause the resonant frequency of the seventh resonant mode g to shift toward a low frequency, and no longer follow the original need to produce a higher efficiency resonance at a length from the third feed point C to the first free end 312 of approximately 1 / 4 wavelength, but can produce a higher efficiency resonance within the range of 1 / 8 to 1 / 4 wavelength corresponding to the length from the third feed point C to the first free end 312. Therefore, while resonance is formed at the original seventh resonant frequency, the corresponding length from the third feed point C to the first free end 312 can also be shortened, for example, reduced to 1 / 8 times the wavelength corresponding to the seventh resonant frequency, etc., thereby further reducing the size of the third radiator 31 and reducing the stacking length of the antenna assembly 100.

[0207] See also Fig.39 , the eighth resonant current density of the eighth resonant mode h is mainly distributed between the third feeding point C and the fourth ground terminal 411, wherein the current between the third feeding point C and the first free end 312 and the current between the second free end 412 and the fourth ground terminal 411 have the same direction. The current flows from the third feeding point C to the first free end 312, passes through the second coupling slot 150, and then flows to the fourth ground terminal 411 through the second free end 412, or flows from the fourth ground terminal 411 to the second free end 412, and then flows to the third feeding point C through the second coupling slot 150. It can be understood that the above is the main current density distribution of the eighth resonant mode h, and there is also a small amount of current density distribution from the third ground terminal 311 to the third feeding point C.

[0208] The eighth resonance mode h is a (1 / 8-1 / 4) wavelength mode in which the excitation current of the third feeding module 33 resonates from the third feeding point C to the first free end 312 and from the second free end 412 to the fourth ground end 411 .

[0209] Generally, by designing the length from the third feeding point C to the first free end 312 to be approximately (1 / 4) times the wavelength of the excitation current sent from the third feeding module 33 to the third feeding point C to the first free end 312 in the medium, and by designing the length from the second free end 412 to the fourth ground end 411 to be approximately (1 / 4) times the wavelength of the excitation current sent from the third feeding module 33 to the second free end 412 to the fourth ground end 411 in the medium, a higher radiation efficiency can be easily excited at the eighth resonant frequency (the resonant frequency of the eighth resonant mode h). Furthermore, by providing a grounded capacitive matching circuit on the path from the third feeding point C to the first free end 312, and providing a grounded capacitive matching circuit on the path from the second free end 412 to the fourth ground end 411, the capacitive loading can cause the resonant frequency of the eighth resonant mode h to shift toward a low frequency, and no longer follow the original requirement to generate a higher efficiency resonance at a length from the third feeding point C to the first free end 312 of about 1 / 4 wavelength and a length from the second free end 412 to the fourth ground end 411 of about 1 / 4 wavelength, but can be provided at a length from the third feeding point C to the first free end 3 The length of 12 corresponds to the range of 1 / 8 to 1 / 4 wavelength, and the length from the second free end 412 to the fourth ground end 411 corresponds to the range of 1 / 8 to 1 / 4 wavelength, which can produce a higher efficiency resonance. Therefore, while forming resonance at the original eighth resonant frequency, the corresponding length from the third feeding point C to the first free end 312 can be shortened and the length of the fourth radiator 41 can be shortened, for example, reduced to 1 / 8 times the wavelength corresponding to the eighth resonant frequency, etc., further reducing the size of the third radiator 31 and the fourth radiator 41, and reducing the stacking length of the antenna assembly 100.

[0210] See also Fig.40 , the fourth antenna unit 40 is used to support the ninth resonance mode i, the tenth resonance mode j, the eleventh resonance mode k and the twelfth resonance mode p.

[0211] See also Fig.39 , the ninth resonance mode i is a (1 / 8-1 / 4) wavelength mode in which the excitation current of the third feeding module 33 resonates from the third feeding point C to the first free end 312, and resonates from the second free end 412 to the fourth ground end 411. The ninth resonance current density distribution of the ninth resonance mode i can refer to the eighth resonance mode h and the eighth resonance current density distribution, which will not be repeated here.

[0212] See also Fig.41, the tenth resonant current density of the tenth resonant mode j is mainly distributed between the third feeding point C and the fourth ground terminal 411, wherein the current between the third feeding point C and the first free end 312 and the current between the second free end 412 and the fourth ground terminal 411 are in opposite directions. A portion of the tenth resonant current flows from the third feeding point C to the first free end 312, and another portion of the tenth resonant current flows from the fourth ground terminal 411 to the second free end 412, or a portion of the tenth resonant current flows from the first free end 312 to the third feeding point C, and another portion of the tenth resonant current flows from the second free end 412 to the fourth ground terminal 411. It can be understood that the above is the main current density distribution of the tenth resonant mode j, and there is also a small amount of current density distribution from the third ground terminal 311 to the third feeding point C.

[0213] The tenth resonance mode j is a (1 / 8-1 / 4) wavelength mode in which the excitation current of the third feeding module 33 resonates from the third feeding point C to the first free end 312 and from the second free end 412 to the fourth ground end 411 .

[0214] Generally, by designing the length from the third feeding point C to the first free end 312 to be approximately (1 / 4) times the wavelength of the excitation current sent from the third feeding module 33 to the third feeding point C to the first free end 312 in the medium, and by designing the length from the second free end 412 to the fourth ground end 411 to be approximately (1 / 4) times the wavelength of the excitation current sent from the third feeding module 33 to the second free end 412 to the fourth ground end 411 in the medium, a higher radiation efficiency can be easily excited at the tenth resonance frequency (the resonance frequency of the tenth resonance mode j). Furthermore, by providing a grounded capacitive matching circuit on the path from the third feeding point C to the first free end 312, and providing a grounded capacitive matching circuit on the path from the second free end 412 to the fourth ground end 411, the capacitive loading can cause the resonant frequency of the tenth resonant mode j to shift toward a low frequency, and no longer follow the original requirement to generate a higher efficiency resonance at a length from the third feeding point C to the first free end 312 of about 1 / 4 wavelength and a length from the second free end 412 to the fourth ground end 411 of about 1 / 4 wavelength, but can be provided at a length from the third feeding point C to the first free end 3 The length of 12 corresponds to the range of 1 / 8 to 1 / 4 wavelength, and the length from the second free end 412 to the fourth ground end 411 corresponds to the range of 1 / 8 to 1 / 4 wavelength, which can produce a higher efficiency resonance. Therefore, while forming resonance at the original tenth resonance frequency, the corresponding length from the third feeding point C to the first free end 312 can be shortened and the length of the fourth radiator 41 can be shortened, for example, reduced to 1 / 8 times the wavelength corresponding to the tenth resonance frequency, etc., further reducing the size of the third radiator 31 and the fourth radiator 41, and reducing the stacking length of the antenna assembly 100.

[0215] See also Fig.42 , the eleventh resonance current density of the eleventh resonance mode k is mainly distributed between the fourth feeding point D and the second free end 411, and flows from the fourth feeding point D to the second free end 411, or flows from the second free end 411 to the fourth feeding point D. It can be understood that the above is the main current density distribution of the eleventh resonance mode k, and there is also a small amount of current density distribution between the fourth ground terminal 412 and the fourth feeding point D and on the first radiator 11.

[0216] Specifically, the eleventh resonance mode k is a mode in which the excitation current (eleventh resonance current) of the fourth feeding module 43 resonates at a (1 / 8 to 1 / 4) wavelength from the fourth feeding point D to the second free end 411. Specifically, the length from the fourth feeding point D to the second free end 411 is designed to be approximately (1 / 8 to 1 / 4) times the wavelength of the excitation current sent by the fourth feeding module 43 to the fourth radiator 41 in the medium, so as to excite the eleventh resonance mode k from the fourth feeding point D to the second free end 411.

[0217] Generally, by designing the length from the fourth feeding point D to the second free end 411 to be approximately (1 / 4) times the wavelength of the excitation current sent by the fourth feeding module 43 in the medium, a higher radiation efficiency is easily excited at the eleventh resonance frequency f4 (the resonance frequency of the eleventh resonance mode k). Furthermore, by providing a grounded capacitive matching circuit on the path of the eleventh resonant current to achieve capacitive coupling and feeding into the fourth radiator 41, the capacitive loading can cause the resonant frequency of the eleventh resonant mode k to shift toward a low frequency, and no longer follow the original requirement to produce a higher efficiency resonance at a length from the fourth feed point D to the second free end 411 of approximately 1 / 4 wavelength, but can produce a higher efficiency resonance within the range of 1 / 8 to 1 / 4 wavelength corresponding to the length from the fourth feed point D to the second free end 411. Therefore, while the original eleventh resonant frequency point f4 forms resonance, the corresponding length from the fourth feed point D to the second free end 411 can also be shortened, for example, reduced to 1 / 8 times the wavelength corresponding to the eleventh resonant frequency point f4, etc., thereby further reducing the size from the fourth feed point D to the second free end 411 and reducing the stacking length of the antenna assembly 100.

[0218] See also Fig.43 , the twelfth resonance current density of the twelfth resonance mode p is mainly distributed between the third ground terminal 311 and the first free end 312, and flows from the third ground terminal 311 to the first free end 312, or flows from the first free end 312 to the third ground terminal 311. It can be understood that the above is the main current density distribution of the twelfth resonance mode p, and there is also a small amount of current density distribution between the second free end 411 and the fourth ground terminal 412.

[0219] The twelfth resonance mode p is a (3 / 4) wavelength mode in which the excitation current of the fourth feeding module 43 resonates with the third radiator 31. Specifically, the length of the third radiator 31 is designed to be approximately (3 / 4) times the wavelength of the excitation current sent by the fourth feeding module 43 to the third radiator 31 in the medium, so as to excite the twelfth resonance mode p on the third radiator 31.

[0220] It should be noted that the above explanation of the sixth resonance mode f to the twelfth resonance mode p from the perspective of wavelength mode is a relatively easy-to-understand explanation, which explains the main characteristic appearance of each mode and is easy to distinguish. However, when each mode is working, the third antenna unit 30 and the fourth antenna unit 40 are not independent, but are mutually coupled, and the current will flow to each other through coupling.

[0221] The frequency bands supported by the third radiator 31 under the excitation of the third feeding module 33 (i.e., the third antenna unit 30) include GPS band, Wi-Fi 2.4G band, LTE-4G MHB band, NR-5G MHB band, LTE-4G UHB band, and NR-5G UHB band. For example, the resonant frequencies of the sixth resonance mode f, the seventh resonance mode g, and the eighth resonance mode h are 1.5766GHz, 2.4667GHz, and 2.9773GHz, respectively. The third antenna unit 30 covers (GPS-L1)+(WIFI 2.4G)+(LTE / NR-MHB+UHB). In other embodiments, the third antenna unit 30 covers (GPS-L1)+(WIFI 2.4G)+(LTE / NR-MHB+UHB)+N77 / N78.

[0222] The frequency bands supported by the fourth radiator 31 under the excitation of the fourth feed module 43 (i.e., the fourth antenna unit 40) cover the N77 band, the N78 band, the Wi-Fi 5G band, and the Wi-Fi 6E band. For example, the resonant frequencies of the ninth resonance mode i, the tenth resonance mode j, the eleventh resonance mode k, and the twelfth resonance mode p are 2.998 GHz, 3.6742 GHz, 5.5096 GHz, and 6.5722 GHz, respectively. The fourth antenna unit 40 covers the N77 / N78+Wi-Fi 5G band and the Wi-Fi 6E band. Of course, in other embodiments, the fourth antenna unit 40 covers the Wi-Fi 5G band and the Wi-Fi 6E band.

[0223] The distribution of the antenna assembly 100 provided in this embodiment in the electronic device 1000 includes but is not limited to the following embodiments: the first radiator 11 and the second radiator 12 are both arranged on the first side frame 2103, and the first coupling slot 140 is located in the middle of the first side frame 2103. A portion of the third radiator 31 is arranged on the first side frame 2103, and another portion is arranged on the top frame 2101. The fourth radiator 41 is arranged on the top frame 2101, and the second coupling slot 150 is arranged on the top frame 2101.

[0224] When the user uses the electronic device 1000 in horizontal mode, the first coupling gap 140 avoids the position where the hand is held, so that the radiation efficiency of the first antenna unit 10 and the second antenna unit 20 is higher, and then the (GPS-L1) + (WIFI 2.4G) + (LTE / NR-MHB + UHB) + N77 / N78 + Wi-Fi 5G / Wi-Fi 6E bands are received and transmitted, thereby improving the horizontal screen usage experience. When the user uses the electronic device 1000 in vertical mode, the second coupling gap 150 avoids the position where the hand is held, so that the radiation efficiency of the third antenna unit 30 and the fourth antenna unit 40 is higher, and then the (GPS-L1) + (WIFI 2.4G) + (LTE / NR-MHB + UHB) + N77 / N78 + Wi-Fi 5G / Wi-Fi 6E bands are received and transmitted, thereby improving the vertical screen usage experience. From the above, it can be seen that the antenna assembly 100 provided in this embodiment can efficiently cover the (GPS-L1) + (WIFI 2.4G) + (LTE / NR-MHB+UHB) + N77 / N78 + Wi-Fi 5G / Wi-Fi 6E frequency bands in both horizontal and vertical screens.

[0225] Optionally, the electronic device 1000 further includes at least one button portion (not shown), at least one of the button portions is located between the second ground terminal 212 and the second feeding point B, and / or at least one of the button portions is located between the first ground terminal 111 and the third ground terminal 311 .

[0226] See also Fig.44, the reference ground GND is an alloy part of the middle plate 410. When the antenna assembly 100 is set in the electronic device 1000, there is a certain interval between the various devices on the antenna assembly 100, and other devices in the electronic device 1000 can be set in the interval. For example, a key circuit board 430 can be set in the interval between the second reference ground GND2 and the second feeding module 23, and a key part can be set on the second radiator 21. The key part includes but is not limited to a power button, a volume button, a mute button, etc. In addition, a key circuit board 430 can also be set in the interval between the fourth matching module M4 and the fifth matching module M5, and a key part can be set on the middle frame between the first ground terminal 111 and the third ground terminal 311. By arranging other devices in the electronic device 1000 in the interval between the devices of the antenna assembly 100, the compactness of the structure of the antenna assembly 100 when it is set in the electronic device 1000 is increased, which is conducive to the stacking of the whole machine.

[0227] It is understandable that the first matching module M1 to the fifth matching module M5 can be configured Figures 11 to 18 The device of any one of the embodiments may also include adjustable devices such as switching circuits and variable capacitors.

[0228] See also Fig.45 , Fig.45 is an S parameter curve diagram of the first antenna unit 10 to the fourth antenna unit 40. Fig.45 It can be seen from the S parameter curve of the total power antenna assembly 100 that the antenna assembly 100 can well cover the (GPS-L1) + (WIFI2.4G) + (LTE / NR-MHB+UHB) + N77 / N78 + Wi-Fi 5G / Wi-Fi 6E frequency bands and has a good impedance bandwidth.

[0229] See also Fig.46 , Fig.46 is the isolation curve between the antenna units of the antenna assembly 100. Wherein, the S2,1 curve represents the isolation curve between the first antenna unit 10 and the second antenna unit 20. The S3,1 curve represents the isolation curve between the third antenna unit 30 and the first antenna unit 10. The S3,2 curve represents the isolation curve between the third antenna unit 30 and the second antenna unit 20. The S4,1 curve represents the isolation curve between the fourth antenna unit 40 and the first antenna unit 10. The S4,2 curve represents the isolation curve between the fourth antenna unit 40 and the second antenna unit 20. The S4,3 curve represents the isolation curve between the fourth antenna unit 40 and the third antenna unit 30. Taking the S parameter as -13dB as a reference, from Fig.46 It can be seen that the isolation curves between the antenna units are mostly set below -13 dB, indicating that the antenna units in the antenna assembly 100 have good isolation.

[0230] The functions of the antenna assembly 100 provided in any of the above embodiments are further introduced below in conjunction with the accompanying drawings. For example, the antenna assembly 100 can perform proximity detection of the subject to be measured while realizing the transmission and reception of antenna signals. The subject to be measured includes but is not limited to the human head, human hands, etc. It can be understood that the radiator is a conductive material, and the radiator can also serve as an induction electrode for the proximity signal while serving as an antenna signal transmission and reception port. The antenna assembly 100 provided in the present application integrates the dual functions of receiving and transmitting electromagnetic wave signals and proximity sensing and is small in size. When the antenna assembly 100 is applied to an electronic device 1000, it ensures that the electronic device 1000 has a communication function and a proximity detection function while also making the overall size of the electronic device 1000 small.

[0231] For details, please refer to Fig.47 The antenna assembly 100 further includes a direct current isolation assembly 70, a filter assembly 50, a detection assembly 80 and a controller (not shown).

[0232] The following is an example of the connection method of the DC isolation component 70 and the filter component 50 in combination with the antenna component 100 provided in the third embodiment.

[0233] See also Fig.47 In the first approach detection implementation, the common body radiator 32 is used as a sensing electrode for sensing the approach of the subject to be detected. The direct isolation component 70 is electrically connected between the first feeding point A and the first matching module M1, between the first ground terminal 111 and the first reference ground GND1 (when a fourth matching module M4 is provided between the first ground terminal 111 and the first reference ground GND1, the direct isolation component 70 is provided between the first ground terminal 111 and the fourth matching module M4), between the third ground terminal 311 and the fifth reference ground GND5 (when a fifth matching module M5 is provided between the third ground terminal 311 and the fifth reference ground GND5, the direct isolation component 70 is provided between the third ground terminal 311 and the fifth matching module M5), and between the third feeding point C and the third matching module M3. The direct isolation component 70 is used to block the direct current generated by the first matching module M1, the first reference ground GND1, the fifth reference ground GND5, and the third matching module M3 to support the human body detection function and improve the detection accuracy when the human body approaches the antenna component 100.

[0234] One end of the filter component 50 is electrically connected to one side of the isolation component 70 close to the common body radiator 32 or electrically connected to any position of the common body radiator 32. The filter component 50 is used to block the radio frequency signal received and sent by the common body radiator 32 and the induction signal generated by the common body radiator 32 when the subject to be measured approaches, so that the radio frequency signal received and sent by the first radiator 11 will not affect the detection accuracy of the detection component 80 detecting the induction signal.

[0235] For details, please refer to Fig.47 The DC isolation component 70 includes a first sub-isolator 71, a second sub-isolator 72, a third sub-isolator 73 and a fourth sub-isolator 74. The first sub-isolator 71 is electrically connected between the first ground terminal 111 and the first reference ground GND1 (specifically, the first ground terminal 111 and the fourth matching module M4). The second sub-isolator 72 is electrically connected between the first feeding point A and the first matching module M1. The third sub-isolator 73 is electrically connected between the third ground terminal 311 and the fifth reference ground GND5 (specifically, the third ground terminal 311 and the fifth matching module M5). The fourth sub-isolator 74 is electrically connected between the third feeding point C and the third matching module M3.

[0236] By setting the DC isolation component 70, the induction signal generated when the subject to be measured is close to the common body radiator 32 will not affect the transmission and reception of the antenna signal by the antenna component 100. Specifically, the first sub-isolator 71, the second sub-isolator 72, the third sub-isolator 73 and the fourth sub-isolator 74 are all capacitive devices. For example, the first sub-isolator 71, the second sub-isolator 72, the third sub-isolator 73 and the fourth sub-isolator 74 are all capacitors, and the first sub-isolator 71, the second sub-isolator 72, the third sub-isolator 73 and the fourth sub-isolator 74 present a small impedance to the ground for the RF signal supported by the antenna component 100. For example, the values ​​of the first sub-isolator 71, the second sub-isolator 72, the third sub-isolator 73 and the fourth sub-isolator 74 include but are not limited to 47pF or 22PF. The first sub-isolator 71 has an isolation effect on the DC current of the fourth matching circuit M4, the second sub-isolator 72 has an isolation effect on the DC current of the first matching circuit M1, the third sub-isolator 73 has an isolation effect on the fifth matching module M5, and the fourth sub-isolator 74 has an isolation effect on the third matching module M3, so as to support the human body detection function and improve the detection accuracy when the human body is close to the antenna component 100. In other words, the DC isolation component 70 makes the common body radiator 32 in a "suspended" state relative to the DC current.

[0237] Specifically, the filter component 50 is electrically connected between the first sub-isolator 71 and the first ground terminal 111; or, electrically connected between the second sub-isolator 72 and the first feeding point A; or, electrically connected between the third sub-isolator 73 and the third ground terminal 311; or, electrically connected between the fourth sub-isolator 74 and the third feeding point C; or, electrically connected to any position of the common body radiator 32. The filter component 50 includes an inductor device or is an inductor device. For example, the filter component 50 is an inductor. The filter component 50 presents a large impedance to the RF signal supported by the antenna component 100, and the inductance value is, for example, 82nH.

[0238] The above DC isolation component 70 and filter component 50 realize that the induction signal and the radio frequency signal can act simultaneously without interfering with each other.

[0239] The detection component 80 is electrically connected to the other end of the filter component 50, and is used to detect the magnitude of the induction signal generated by the radiator. Optionally, the detection component 80 is a device for detecting current signals, voltage signals or inductance signals, such as a miniature galvanometer, a miniature current transformer, a current comparator, a voltage comparator, etc.

[0240] When the human skin surface is close to the common body radiator 32, the human skin surface and the common body radiator 32 can be equivalent to two electrode plates of a capacitor. When the human head approaches, the common body radiator 32 can sense the change in the amount of charge brought by the human head. The filter component 50 is electrically connected to the common body radiator 32. The above-mentioned change in the amount of charge forms an induction signal, which is transmitted to the detection component 80 through the filter component 50. According to the capacitance calculation formula, C=εS / 4πkd, where d is the distance between the human body (head or hand) and the radiator, so when the capacitance increases, that is, the intensity of the induction signal detected by the detection component 80 increases, it means that the human body is approaching; when the capacitance decreases, that is, the intensity of the induction signal detected by the detection component 80 decreases, it means that the human body is moving away. The detection component 80 detects the change in the above-mentioned induction signal to determine whether the human head is close to the common body radiator 32 of the antenna component 100, thereby intelligently reducing the specific absorption rate of the human head to electromagnetic waves.

[0241] Optionally, at least part of the DC isolation component 70 can also serve as a part of the matching module. For example, the second sub-isolator 72 is a capacitor. The second sub-isolator 72 is used to block the induction signal and conduct the RF signal. At the same time, it can also serve as a part of the first matching module M1 to tune the impedance matching between the signal source 21 and the first feeding point A to reduce the loss of the RF signal fed into the common radiator 32 and improve the signal conversion efficiency received and sent by the common radiator 32; it is also used to adjust the frequency deviation of the resonant mode generated on the common radiator 32, etc., thereby realizing multiple uses of the device, reducing the number of devices and the space occupied, and improving the integration of the device.

[0242] When the portion of the first matching module M1 electrically connected to the first feeding point A is a capacitor, there is no need to set the second sub-isolator 72. Similarly, when the portion of the fourth matching module M4 electrically connected to the second ground terminal 212 is a capacitor, there is no need to set the first sub-isolator 71. When the portion of the fifth matching module M5 electrically connected to the third ground terminal 311 is a capacitor, there is no need to set the third sub-isolator 73. When the portion of the third matching module M3 electrically connected to the second feeding point B is a capacitor, there is no need to set the fourth sub-isolator 74.

[0243] The antenna assembly 100 and the electronic device 1000 provided in the present application realize the dual functions of the communication performance of the antenna assembly 100 and the sensing of the subject to be measured by reusing the common body radiator 32 on the antenna assembly 100 as a sensing electrode for detecting the approach of the human body to be measured, and separating the sensing signal and the radio frequency signal through the direct current isolation assembly 70 and the filtering assembly 50, thereby increasing the function of the antenna assembly 100, further improving the utilization rate of the device, and reducing the overall volume of the electronic device 1000.

[0244] On the one hand, this embodiment can increase the proximity sensing area. On the other hand, since the common radiator 32 is arranged on the first side frame 2103, the top frame 2101 and the corner portion 2106 on the first side frame 2103 and the top frame 2101, the common radiator 32 is used as a sensing electrode to detect the proximity sensing of the subject to be tested at the front, rear, the side facing the first side frame 2103, and the side facing the top frame 2101 of the electronic device 1000, thereby increasing the SAR detection range.

[0245] In the second approach detection implementation, please refer to Fig.48 The second radiator 21 is used as an induction electrode for detecting the approach of the subject to be measured.

[0246] The direct-current isolation component 70 is electrically connected between the second ground terminal 212 of the second radiator 21 and the second reference ground GND2, and between the second matching module M2 and the second feeding point B. The specific structure of the direct-current isolation component 70 and the principle of isolating the induction signal and conducting the radio frequency signal can refer to the connection method of the first direct-current isolation component 70 and the filter component 50, which will not be repeated here. One end of the filter component 50 is electrically connected to the side of the direct-current isolation component 70 close to the second radiator 21 (for example, between the direct-current isolation component 70 and the second ground terminal 212) or electrically connected to any position of the second radiator 21. The direct-current isolation component 70 is used to block the direct current generated by the second reference ground GND2 and the second matching module M2, and the filter component 50 is used to block the radio frequency signal received and transmitted by the second radiator 21 and the induction signal generated by the second radiator 21 when the subject to be measured is close; in this embodiment, the second radiator 21 is an induction electrode, and the second radiator 21 is in a suspended state relative to the direct current.

[0247] In the third approach detection implementation, please refer to Fig.49 , the fourth radiator 41 is used as an induction electrode for detecting the approach of the subject to be measured. The direct-current isolation component 70 is electrically connected between the fourth ground terminal 411 and the sixth reference ground GND6, between the sixth matching module M6 and the fourth feeding point D, and one end of the filter component 50 is electrically connected to the side of the direct-current isolation component 70 close to the third radiator 31 or electrically connected to the third radiator 31; the direct-current isolation component 70 is used to block the direct current generated by the sixth reference ground GND6 and the sixth matching module M6, and the filter component 50 is used to block the radio frequency signals received and sent by the third radiator 31 and the induction signals generated by the fourth radiator 41 when the subject to be measured approaches.

[0248] It can be understood that one of the first proximity detection implementation method, the second proximity detection implementation method, and the third proximity detection implementation method can be selected for implementation, two of them can be selected for implementation, or three of them can be selected for implementation.

[0249] The following specifically describes an implementation method in which the first proximity detection and the third proximity detection are simultaneously implemented.

[0250] See also Fig.50 On the basis of the first approach detection, the DC isolation component 70 further includes a fifth sub-DC isolation device 75 and a sixth sub-DC isolation device 76. The fifth sub-DC isolation device 75 is electrically connected between the fourth feeding point D and the sixth matching module M6, and the sixth sub-DC isolation device 76 is electrically connected between the fourth ground terminal 411 and the sixth reference ground GND6, so that the common body radiator 32 and the fourth radiator 41 can both serve as sensing electrodes for sensing the approach of the subject to be detected.

[0251] See also Fig.50 The filter assembly 50 includes a first sub-filter 51 and a second sub-filter 52. The first sub-filter 51 is electrically connected between the first sub-isolator 71 and the first feeding point A, or between the second sub-isolator 72 and the first ground terminal 111, between the third sub-isolator 73 and the third ground terminal 311, or between the fourth sub-isolator 74 and the third feeding point C, or any position of the common body radiator 32. The second sub-filter 52 is electrically connected between the fifth sub-isolation device 75 and the fourth feeding point D, between the sixth sub-isolation device 76 and the fourth ground terminal 411, or any position of the fourth radiator 41.

[0252] Specifically, the first sub-isolator 71 , the second sub-isolator 72 and the third sub-isolator 73 are all isolation capacitors, and the first sub-filter 51 and the second sub-filter 52 are all isolation inductors.

[0253] See also Fig.50, the detection component 80 is electrically connected to the first sub-filter 51 and the second sub-filter 52. Specifically, the two channels of the detection component 80 are electrically connected to the first sub-filter 51 and the second sub-filter 52. In this embodiment, the common radiator 32 and the fourth radiator 41 can both be used as detection electrodes for sensing the approach of the subject to be detected.

[0254] In other embodiments, the detection component 80 includes a first sub-detector and a second sub-detector. The first sub-detector is electrically connected to the other end of the first sub-filter 51, and the second sub-detector is electrically connected to the other end of the second sub-filter 52. In other words, the sensing signals detected by the common radiator 32 and the fourth radiator 41 are respectively detected by two independent sub-detectors. This embodiment can be used when the common radiator 32 and the fourth radiator 41 are located on different sides of the electronic device 1000. The radiator of one antenna component 100 can detect the human body approaching from different sides of the electronic device 1000, thereby improving the detection range while occupying a smaller space.

[0255] When a human body approaches the common radiator 32, the charge on the common radiator 32 changes, and the detection component 80 can directly sense the induction signal through the first sub-filter 51; when a human body approaches the fourth radiator 41, the charge on the fourth radiator 41 changes, and the detection component 80 can directly sense the induction signal through the second sub-filter 52. The detection component 80 detects the approach of a human body by detecting the induction signal. In this case, all radiators can be used as induction electrodes to make the induction area larger, which can improve the utilization rate of the radiator. Only one detection component 80 is needed, which can save the number of components of the antenna component 100 and save space.

[0256] The controller is electrically connected to the detection component 80. The detection component 80 receives the induction signal and converts it into an electrical signal and transmits it to the controller. The controller is used to detect the distance between the subject to be measured and the radiator according to the size of the induction signal, and then determine whether the human body is close to the radiator, and adjust the power of the first feeding module 13 (or adjust the third feeding module 33, adjust the fourth feeding module 43) when the distance between the subject to be measured and the radiator is less than or equal to the preset distance value. Specifically, the controller can adjust the power of the antenna assembly 100 according to different scenarios to achieve intelligent reduction of the specific absorption rate of the human body for electromagnetic wave signals.

[0257] For example, when the human head is close to the radiator of the antenna assembly 100, the controller can reduce the power of the antenna assembly 100 to reduce the specific absorption rate of the electromagnetic waves radiated by the antenna assembly 100. When the human hand blocks the radiator of the antenna assembly 100 in the radiation direction, if there are other spare antenna assemblies 100 (i.e., antenna assemblies 100 that can cover the same frequency band) in the electronic device 1000, the controller can turn off the blocked antenna assembly 100 and turn on the antenna assembly 100 that is not blocked in other positions. In this way, when the human hand blocks the antenna assembly 100, the communication quality of the electronic device 1000 can be ensured by intelligently switching the antenna assembly 100; if there are no other spare antenna assemblies 100 in the electronic device 1000, the controller can control the power of the antenna assembly 100 to increase to compensate for the problem of reduced efficiency caused by the hand blocking the radiator.

[0258] Of course, the controller also controls other applications on the electronic device 1000 according to the detection results of the detection component 80. For example, the controller controls the screen brightness of the display screen 300 to turn off to save power when the electronic device 1000 is on a call when the detection results of the detection component 80 detect that a human body is approaching and the electronic device 1000 is in a call state; the controller also controls the screen brightness of the display screen 300 to turn on when the detection results of the detection component 80 detect that a human body is moving away and the electronic device 1000 is in a call state.

[0259] Of course, in other implementations, the first approach detection implementation, the second approach detection implementation, and the third approach detection implementation may be implemented together.

[0260] Optionally, when the radiator is used for human proximity detection and the radiator is integrated with the frame 210, an insulating film can be set on the surface of the radiator. Since the surface of human skin has an electric charge, a capacitor structure is formed between the surface of human skin and the radiator, and the signal changes caused by the proximity of the human skin surface are sensed by the radiator.

[0261] Optionally, multiple antenna assemblies 100 may be provided in the electronic device 1000, and these antenna assemblies 100 are the antenna assemblies 100 listed in any one of the embodiments described above. The multiple antenna assemblies 100 can realize intelligent switching operation in different shielding scenarios, so as to achieve high antenna transceiver efficiency in any hand-held shielding and other situations. Moreover, after the radiators of the multiple antenna assemblies 100 are integrated with detection functions, different user scenarios (such as one-handed holding, two-handed holding, carrying state, call state, etc.) can be detected, and the detection of the six surfaces in the specific absorption rate (SAR) standard can also be realized.

[0262] Optional, see Fig.51, a connecting section is provided between the first ground terminal 111 and the third ground terminal 311. The connecting section is provided with at least one connecting point (e.g. Fig.51 The first connection point 511 and Fig.52 The antenna assembly 100 further includes at least one seventh matching module M7, one end of the seventh matching module M7 being electrically connected to the connection point (the first connection point 511), and the other end of the seventh matching module M7 being electrically connected to the seventh reference ground GND7. The seventh matching module M7 can effectively filter out the radio frequency signals of the first antenna unit 10 and the second antenna unit 20 to prevent the radio frequency signals from interfering with the third antenna unit 30 and the fourth antenna unit 40. Optionally, the seventh matching module M7 includes a grounding circuit in a bandpass state or a low impedance state for the frequency band supported by the first antenna unit 10 and the second antenna unit 20, so as to provide better isolation between the first antenna unit 10, the second antenna unit 20 and the third antenna unit 30 and the fourth antenna unit 40. In addition, the seventh matching module M7 can also effectively filter out the radio frequency signals of the third antenna unit 30 and the fourth antenna unit 40 to prevent the radio frequency signals from interfering with the first antenna unit 10 and the second antenna unit 20. Optionally, the seventh matching module M7 includes a grounding circuit in a bandpass state or a low impedance state for the frequency band supported by the third antenna unit 30 and the fourth antenna unit 40, so as to improve the isolation between the first antenna unit 10, the second antenna unit 20 and the third antenna unit 30, the fourth antenna unit 40.

[0263] In addition, the seventh matching module M7 can also filter out some less efficient working modes in the antenna component 100, for example, the working mode in which the current flows from the first reference ground GND1 to the first ground terminal 111, the third ground terminal 311, and back to the fifth reference ground GND5, so as to reduce the impact of these inefficient working modes on the resonant mode of the antenna component 100.

[0264] Optionally, the connection point (first connection point 511) may be located close to the first ground terminal 111 or the third ground terminal 311, so that a button can be set between the first ground terminal 111 and the third ground terminal 311. The seventh matching module M7 is opposite to the connection point. Of course, when there is no need to set a button between the first ground terminal 111 and the third ground terminal 311, the connection point can also be set at any position between the first ground terminal 111 and the third ground terminal 311, including but not limited to the middle position between the first ground terminal 111 and the third ground terminal 311.

[0265] Optional, see Fig.52, the number of connection points is multiple, for example, two connection points (first connection point 511 and second connection point 512) are respectively close to the first ground terminal 111 and the third ground terminal 311. The number of matching modules electrically connected to the connection points (first connection point 511 and second connection point 512) is two, which are respectively recorded as the seventh matching module M7 and the eighth matching module M8. The seventh matching module M7 and the eighth matching module M8 can both increase the isolation between the first antenna unit 10, the second antenna unit 20 and the third antenna unit 30, the fourth antenna unit 40, and filter out some less efficient working modes in the antenna assembly 100, thereby improving the transceiver efficiency of each resonant mode of the antenna assembly 100.

[0266] The antenna assembly 100 provided in the present application can realize a four-antenna co-aperture design, which can increase the bandwidth and number of frequency bands of the transceiver frequency bands while reducing the stacking space of the antenna assembly 100. In addition, the radiator of the antenna assembly 100 is integrated with a human proximity detection function, which can intelligently detect the approach of a human body, thereby reducing the specific absorption rate, or detecting the holding state, application state, etc. of the electronic device 1000. In addition, through the reasonable layout of the antenna assembly 100 on the electronic device 1000, the electronic device 1000 has a higher signal transceiver efficiency when used in the horizontal screen state.

[0267] The above is part of the implementation methods of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. An antenna assembly, characterized in that: The invention comprises a first radiator, a second radiator, a first matching module, a first feeding module, a second matching module and a second feeding module, wherein the first radiator has a first grounding end and a first coupling end, and a first feeding point located between the first grounding end and the first coupling end, the second radiator has a second coupling end and a second grounding end, and a second feeding point located between the second coupling end and the second grounding end, a first coupling gap exists between the second coupling end and the first coupling end, the first matching module is electrically connected between the first feeding point and the first feeding module, the first grounding end is electrically connected to a first reference ground; the second matching module is electrically connected between the second feeding point and the second The feeding modules are connected to each other, the second grounding terminal is electrically connected to a second reference ground; the first radiator and the second radiator support a plurality of resonance modes under the excitation of the first feeding module and the second feeding module, wherein at least one of the resonance modes is a (1 / 8 to 1 / 4) wavelength mode in which the excitation current of the first feeding module resonates on the second radiator; the plurality of resonance modes include a first resonance mode and a fifth resonance mode, the first resonance mode is a (1 / 8 to 1 / 4) wavelength mode in which the excitation current of the first feeding module resonates on the first radiator; the fifth resonance mode is a (3 / 4) wavelength mode in which the excitation current of the second feeding module resonates on the first radiator.

2. The antenna assembly according to claim 1, wherein: The antenna assembly is also used to support a second resonant mode and a third resonant mode, wherein the second resonant mode is a (1 / 8 to 1 / 4) wavelength mode in which the excitation current of the first feeding module resonates on the second radiator; and the third resonant mode is a (1 / 8 to 1 / 4) wavelength mode in which the excitation current of the first feeding module resonates from the first feeding point to the first coupling end.

3. The antenna assembly according to claim 2, wherein: The resonant frequency of the first resonant mode, the resonant frequency of the second resonant mode and the resonant frequency of the third resonant mode increase sequentially; the frequency band supported by the first resonant mode includes at least one of the GPS band, the LTE-4G MHB band, and the NR-5G MHB band; the frequency band supported by the second resonant mode includes at least one of the Wi-Fi 2.4G band, the LTE-4G MHB band, and the NR-5G MHB band; the frequency band supported by the third resonant mode includes at least one of the LTE-4G UHB band and the NR-5G UHB band.

4. The antenna assembly according to claim 2, wherein: The first matching module includes at least one second branch connected in series between the first feeding point and the first feeding module and / or at least one first branch connected in parallel to the ground, and the first branch and the second branch both include at least one of a capacitor and an inductor; the first matching module is used to tune at least one of the resonant frequency of the first resonant mode, the resonant frequency of the second resonant mode, and the resonant frequency of the third resonant mode.

5. The antenna assembly according to claim 4, characterized in that At least one of the first branches includes a first sub-branch, a second sub-branch, and a third sub-branch, and at least one of the second branches includes a fourth sub-branch and a fifth sub-branch; One end of the first sub-branch is electrically connected to the first feeding point, the other end of the first sub-branch is electrically connected to a third reference ground, and the first sub-branch includes a capacitor, or a capacitor and an inductor; One end of the second sub-branch is electrically connected to the first feeding point, the other end of the second sub-branch is electrically connected to the third reference ground, and the second sub-branch includes an inductor, or an inductor and a capacitor; The other end of the third sub-branch is electrically connected to the third reference ground, and the third sub-branch includes a capacitor, or a capacitor and an inductor; One end of the fourth sub-branch is electrically connected to the first feeding point, the other end of the fourth sub-branch is electrically connected to one end of the third sub-branch, and the fourth sub-branch includes a capacitor, or a capacitor and an inductor; One end of the fifth sub-branch is electrically connected to the other end of the fourth sub-branch, the other end of the fifth sub-branch is electrically connected to the first feeding module, and the fifth sub-branch includes an inductor.

6. The antenna assembly according to claim 5, characterized in that The first matching module also includes at least one adjustable branch electrically connected to the third reference ground, the adjustable branch including at least one of a switch circuit and an adjustable capacitor; the adjustable branch is used to tune the resonant frequencies of the first resonant mode and the second resonant mode.

7. The antenna assembly according to claim 1, wherein: The length between the first feeding point and the first ground end is (1 / 3 to 1) times the length of the first radiator.

8. The antenna assembly according to any one of claims 2 to 7, characterized in that: The antenna assembly is used to support a fourth resonance mode, wherein the fourth resonance mode is a (1 / 8-1 / 4) wavelength mode in which the excitation current of the second feeding module resonates from the second feeding point to the second coupling end.

9. The antenna assembly according to claim 8, wherein: The resonant frequency of the fourth resonant mode is less than the resonant frequency of the fifth resonant mode; the frequency bands supported by the fourth resonant mode and the fifth resonant mode both include at least one of the Wi-Fi 5G frequency band and the Wi-Fi 6E frequency band.

10. The antenna assembly according to claim 8, wherein: The second matching module includes at least one third branch connected in parallel to the ground and / or at least one fourth branch connected in series between the first feeding point and the first feeding module, and the third branch and the fourth branch both include at least one of a capacitor and an inductor; the second matching module is used to conduct the frequency band supported by the fourth resonance mode and the fifth resonance mode, and to block the frequency band less than the frequency band supported by the fourth resonance mode and the fifth resonance mode, and to tune the resonant frequency of the fourth resonance mode and / or the resonant frequency of the fifth resonance mode.

11. The antenna assembly according to claim 10, wherein: At least one of the third branches includes a sixth sub-branch and a seventh sub-branch, and at least one of the fourth branches includes an eighth sub-branch; One end of the sixth sub-branch is electrically connected to the second feeding point, the other end of the sixth sub-branch is electrically connected to one end of the seventh sub-branch, and the sixth sub-branch includes an inductor and a capacitor connected in parallel; The other end of the seventh sub-branch is electrically connected to the second feeding module, and the seventh sub-branch includes a capacitor, or an inductor, or an inductor and a capacitor in parallel; One end of the eighth sub-branch is electrically connected to the second feeding module, the other end of the eighth sub-branch is electrically connected to a fourth reference ground, and the eighth sub-branch includes at least one of a capacitor and an inductor.

12. The antenna assembly according to claim 1, wherein: The antenna assembly also includes a third radiator, a third feeding module and a third matching module. The third radiator includes a third grounding end and a first free end, and a third feeding point arranged between the third grounding end and the first free end. The third grounding end is spaced apart from the first grounding end or connected through a conductor, and the third grounding end is electrically connected to a fifth reference ground. The third feeding module is electrically connected to the third feeding point, and the third matching module is electrically connected between the third feeding point and the third feeding module.

13. The antenna assembly according to claim 12, wherein: The antenna assembly also includes a fourth matching module, one end of which is electrically connected to the first ground terminal, and the other end of which is electrically connected to the first reference ground; and / or, the antenna assembly also includes a fifth matching module, one end of which is electrically connected to the third ground terminal, and the other end of which is electrically connected to the fifth reference ground.

14. The antenna assembly according to claim 12 or 13, characterized in that: The antenna assembly also includes a fourth radiator, a fourth feeding module and a sixth matching module, the fourth radiator includes a fourth grounding end and a second free end, and a fourth feeding point arranged between the fourth grounding end and the second free end, a second coupling gap is between the fourth grounding end and the first free end, and the fourth grounding end is electrically connected to a sixth reference ground; the fourth feeding module is electrically connected to the fourth feeding point, and the sixth matching module is electrically connected between the fourth feeding point and the fourth feeding module.

15. The antenna assembly according to claim 14, wherein: The antenna assembly is also used to support a sixth resonance mode, a seventh resonance mode and an eighth resonance mode, wherein the sixth resonance mode is a (1 / 8 to 1 / 4) wavelength mode in which the excitation current of the third feeding module resonates on the third radiator; the seventh resonance mode is a (1 / 8 to 1 / 4) wavelength mode in which the excitation current of the third feeding module resonates from the third feeding point to the first free end; the eighth resonance mode is a (1 / 8 to 1 / 4) wavelength mode in which the excitation current of the third feeding module resonates from the third feeding point to the first free end, and resonates from the second free end to the fourth ground end. The antenna assembly is also used to support a ninth resonance mode, a tenth resonance mode, an eleventh resonance mode and a twelfth resonance mode, wherein the ninth resonance mode is a (1 / 8-1 / 4) wavelength mode in which the excitation current of the fourth feeding module resonates from the third feeding point to the first free end, and resonates from the first free end to the fourth ground end. The tenth resonance mode is a (1 / 8-1 / 4) wavelength mode in which the excitation current of the fourth feeding module resonates from the first free end to the fourth ground end. The eleventh resonance mode is a (1 / 8-1 / 4) wavelength mode in which the excitation current of the fourth feeding module resonates from the fourth feeding point to the second free end. The twelfth resonance mode is a (3 / 4) wavelength mode in which the excitation current of the fourth feeding module resonates from the third ground end to the first free end.

16. The antenna assembly according to claim 14, wherein: The frequency bands supported by the third radiator under the excitation of the third feeding module include GPS band, Wi-Fi 2.4G band, LTE-4G MHB band, NR-5G MHB band, LTE-4G UHB band, and NR-5G UHB band; the frequency bands supported by the fourth radiator under the excitation of the fourth feeding module cover N77 band, N78 band, Wi-Fi 5G band, and Wi-Fi 6E band.

17. The antenna assembly according to claim 14, wherein: The first radiator is connected to the third radiator to form a common radiator; the antenna assembly also includes a direct-current isolation assembly, a filtering assembly and a detection assembly, the direct-current isolation assembly is electrically connected between the first feeding point and the first matching module, between the first ground terminal and the first reference ground, between the third ground terminal and the fifth reference ground, and between the third feeding point and the third matching module; one end of the filtering assembly is electrically connected to the side of the direct-current isolation assembly close to the common radiator or electrically connected to the common radiator, the direct-current isolation assembly is used to isolate the direct current generated by the first matching module, the first reference ground, the fifth reference ground and the third matching module, and the filtering assembly is used to block the radio frequency signals received and transmitted by the common radiator and the induction signals generated by the common radiator when the subject to be measured is close; and / or, the direct-current isolation assembly is electrically connected between the second ground terminal and the second reference ground, the second matching module and the second feeding point, one end of the filter component is electrically connected to the side of the isolation component close to the second radiator or electrically connected to the second radiator; the isolation component is used to isolate the second reference ground and the DC current generated by the second matching module, and the filter component is used to block the radio frequency signal received and sent by the second radiator and the induction signal generated by the second radiator when the subject to be measured approaches; and / or, the isolation component is electrically connected between the fourth ground terminal and the sixth reference ground, between the sixth matching module and the fourth feeding point, one end of the filter component is electrically connected to the side of the isolation component close to the third radiator or electrically connected to the third radiator; the isolation component is used to isolate the sixth reference ground and the DC current generated by the sixth matching module, and the filter component is used to block the radio frequency signal received and sent by the third radiator and the induction signal generated by the third radiator when the subject to be measured approaches; The detection component is electrically connected to the other end of the filter component, and the detection component is used to detect the size of the sensing signal.

18. The antenna assembly according to claim 14, wherein: A connection section is provided between the first ground terminal and the third ground terminal. The antenna assembly further comprises at least one seventh matching module. One end of the seventh matching module is electrically connected to the connection section, and the other end of the seventh matching module is grounded.

19. An electronic device, characterized in that: The electronic device comprises a housing and at least one antenna assembly as claimed in any one of claims 1 to 18, wherein a radiator of the antenna assembly is integrated in the housing, or is disposed on a surface of the housing, or is disposed in a space surrounded by the housing.

20. The electronic device according to claim 19, characterized in that The shell includes a top frame and a bottom frame that are arranged opposite to each other, and a first side frame and a second side frame connected between the top frame and the bottom frame. The antenna assembly is arranged on at least one of the top frame, the first side frame, the second side frame and the bottom frame.

21. The electronic device according to claim 20, characterized in that: The first radiator and the second radiator of the antenna assembly are arranged on the first side frame, a part of the third radiator of the antenna assembly is arranged on the first side frame, another part of the third radiator of the antenna assembly is arranged on the top frame, the fourth radiator of the antenna assembly is arranged on the top frame, the first coupling gap between the first radiator and the second radiator is located on the first side frame, and the second coupling gap is located on the top frame; The electronic device further comprises at least one button portion, wherein at least one button portion is located between the second ground terminal and the second feeding point, and / or at least one button portion is located between the first ground terminal and the third ground terminal of the third radiator.

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