Antenna assembly and electronic equipment

Abstract

The invention provides an antenna assembly and electronic equipment, the antenna assembly comprises a first radiator, a resonance part and a first feed source, the first radiator comprises a first grounding point, a first connection point, a second connection point, a first feeding point and a first open end, and a resonance section is arranged between the first connection point and the second connection point; the resonance piece is electrically connected with the first connection point and the second connection point, and the resonance piece and the resonance section form a band elimination structure; the first feed source is used for exciting the first radiator to form a first resonant mode supporting a first frequency band, the electrical length of the first radiator is greater than 1 / 2 wavelength of the first frequency band, and the electrical length between the second connection point and the first open end is greater than or equal to 1 / 2 wavelength of the first frequency band; the first current of the first resonance mode is distributed between the second connection point and the first opening end, at least part of the second current of the first resonance mode is distributed on the band elimination structure, the direction of the first current is the same as the direction of at least part of the second current on the resonance section, and the gain is improved.

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] During the communication between electronic devices such as mobile phones and base stations, routers, etc., the orientation of the electronic devices is uncertain, so the position of the base station relative to the electronic devices is uncertain. Based on this, how to improve the communication efficiency of electronic devices in sending and receiving signals during the communication process has become a technical problem that needs to be solved. Summary of the Invention

[0003] The present application provides an antenna assembly capable of improving the communication efficiency of an electronic device in sending and receiving signals during a communication process, and an electronic device having the antenna assembly.

[0004] In a first aspect, the present application provides an antenna assembly, comprising:

[0005] A first radiator includes a first grounding point, a first connection point, a second connection point, a first feeding point, and a first open end, wherein a resonant section is provided between the first connection point and the second connection point;

[0006] a resonant element, wherein two ends of the resonant element are electrically connected to the first connection point and the second connection point respectively, the resonant element and the resonant section form a band-stop structure, and the resonant frequency band of the band-stop structure includes the first frequency band;

[0007] A first feed source, the first feed source is electrically connected to the first feed point, the first feed source is used to excite the first radiator to form a first resonant mode supporting the first frequency band, the electrical length of the first radiator is greater than 1 / 2 wavelength of the first frequency band, the electrical length between the second connection point and the first open end is greater than or equal to 1 / 2 wavelength of the first frequency band, the first current of the first resonant mode is distributed between the second connection point and the first open end, at least part of the second current of the first resonant mode is distributed in the band-stop structure, and the direction of the first current is the same as the direction of at least part of the second current on the resonant segment.

[0008] In a second aspect, the present application provides an electronic device comprising the antenna assembly as described in the first aspect.

[0009] The antenna assembly provided by the present application includes a first radiator, a resonant element and a first feed source, the first radiator includes a first grounding point, a first connection point, a second connection point, a first feeding point and a first open end, a resonant segment is set between the first connection point and the second connection point, the two ends of the resonant element are electrically connected to the first connection point and the second connection point respectively, the resonant element and the resonant segment form a band-stop structure, and the resonant frequency band of the band-stop structure includes the first frequency band; the first feed source is electrically connected to the first feeding point, the first feed source is used to excite the first radiator to form a first resonant mode supporting the first frequency band, the electrical length of the first radiator is greater than 1 / 2 wavelength of the first frequency band, the second connection point is connected to the first open end The electrical length between the two ends is greater than or equal to 1 / 2 wavelength of the first frequency band; the first current of the first resonant mode is distributed between the second connection point and the first open end, and at least part of the second current of the first resonant mode is distributed in the band-stop structure. The direction of the first current is the same as the direction of at least part of the second current on the resonant segment. The above design enables the resonant segment outside the 1 / 2 wavelength segment on the first radiator to also form a current in the same direction as the first 1 / 2 wavelength segment. The reverse current in the second 1 / 2 wavelength segment is suppressed by the band-stop structure, avoiding far-field energy cancellation, less beam splitting, higher gain of the main lobe, and stronger directivity, thereby improving the communication efficiency of electronic equipment in sending and receiving signals during communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments.

[0011] Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application;

[0012] Figure 2 This is a schematic diagram of the structural decomposition of an electronic device provided in an embodiment of the present application;

[0013] Figure 3 This is a schematic diagram of a partial structure of an electronic device with a back cover removed provided by an embodiment of the present application;

[0014] Figure 4 This is a schematic diagram of current distribution on an antenna assembly provided in Example 1 of the present application;

[0015] Figure 5 is a schematic diagram of current distribution on an antenna assembly provided in the first comparative example;

[0016] Figure 6 is a schematic diagram of the band-stop structure provided in Example 1 of the present application;

[0017] Figure 7This is a structural diagram of the resonant element provided in the first embodiment of the present application, which includes a conductive element and a resonant section including a coupling gap;

[0018] Figure 8 This is a structural diagram of the resonant element provided in the first embodiment of the present application, which includes an inductor device and a resonant section including a coupling gap;

[0019] Figure 9 This is a structural diagram of the resonant element provided in the first embodiment of the present application, which includes a conductive element and a resonant section including a gap;

[0020] Figure 10 This is a structural diagram of a resonant element provided in Example 1 of the present application, including an inductor device, and a resonant section including a gap;

[0021] Figure 11 1 is a schematic structural diagram of a resonant element provided in Example 1 of the present application, including a first extension section and a second extension section;

[0022] Figure 12 This is a schematic structural diagram of a resonant element provided in the first embodiment of the present application, including a coupling gap, and a resonant section including a gap and an inductor device;

[0023] Figure 13 This is a structural diagram of the resonant element provided in the first embodiment of the present application, including a second capacitive element, and the resonant section is a part of the first radiator;

[0024] Figure 14 This is a structural diagram of the resonant element provided in the first embodiment of the present application, which includes a second capacitive element, and the resonant section includes a gap and an inductive element;

[0025] Figure 15 This is a schematic structural diagram of the resonance section provided in Example 1 of the present application, which includes a first resonance section and a second resonance section;

[0026] Figure 16 This is a schematic structural diagram of the conductive member provided in the first embodiment of the present application being located in a clearance area;

[0027] Figure 17a This is a simplified schematic diagram of the main radiation direction of the antenna assembly provided in the first embodiment of the present application when operating in the first frequency band;

[0028] Figure 17b This is a 3D directional diagram of a band-stop structure provided on the first radiator provided in the first embodiment of the present application;

[0029] Figure 18 This is a 3D directional diagram of the first radiator provided in Example 1 of the present application without a band-stop structure;

[0030] Figure 19 It is a structural schematic diagram of the second comparative example provided in this application;

[0031] Figure 20 It is the 3D directional diagram of the second comparative example provided in this application;

[0032] Figure 21 2D directional diagrams of the antenna assembly provided in Example 1 of the present application and the second comparative example;

[0033] Figure 22 This is a schematic diagram showing that when the first switch unit provided in the second embodiment of the present application is in an off state, the beam of the antenna assembly operating in the first frequency band is the second beam;

[0034] Figure 23 This is a schematic diagram showing that when the first switch unit provided in the second embodiment of the present application is in the on state, the beam of the antenna assembly operating in the first frequency band is the first beam;

[0035] Figure 24 This is a structural diagram of the antenna assembly provided in Example 2 of the present application, which further includes a first tuning element;

[0036] Figure 25 is a structural schematic diagram of the antenna assembly provided in the third embodiment of the present application including a second radiator;

[0037] Figure 26 This is a schematic structural diagram of a second radiator of an antenna assembly provided in a third embodiment of the present application having a third current;

[0038] Figure 27 This is a structural diagram of the second radiator of the antenna assembly provided in the third embodiment of the present application, including the second feeding point;

[0039] Figure 28 1 is a schematic structural diagram of a second radiator of an antenna assembly provided in a third embodiment of the present application, including a second feeding point and a third matching circuit;

[0040] Figure 29 This is a structural diagram of the antenna assembly provided in Example 3 of the present application further including a second switch unit;

[0041] Figure 30 This is a structural diagram of the antenna assembly provided in Example 3 of the present application further including a first capacitive device;

[0042] Figure 31 This is a structural diagram of the second radiator of the antenna assembly provided in Example 3 of the present application further including a second grounding point;

[0043] Figure 32 1 is a schematic structural diagram of the antenna assembly provided in the third embodiment of the present application, further comprising a first inductive element and a second inductive element;

[0044] Figure 33This is a schematic structural diagram of a π-shaped inductor circuit and a T-shaped capacitor circuit provided in Example 3 of the present application;

[0045] Figure 34 1 is a schematic structural diagram of a first matching circuit including a first filter circuit and a second matching circuit including a second filter circuit provided in Embodiment 3 of the present application;

[0046] Figure 35 This is a structural diagram of the antenna assembly provided by the third embodiment of the present application, which further includes a third switch unit and at least one second tuning element;

[0047] Figure 36 This is a structural diagram of the antenna assembly provided in Example 3 of the present application, in which the first radiator and the second radiator are both located outside the handheld area when the electronic device is held in landscape mode;

[0048] Figure 37 This is a schematic diagram of the structure of the antenna assembly provided in Example 3 of this application. Figure 1 ;

[0049] Figure 38 This is a current simulation diagram provided by the present application without a band-stop structure provided on the first radiator;

[0050] Figure 39 This is a current simulation diagram of a first radiator provided by the present application with a band-stop structure provided on it;

[0051] Figure 40 This is a schematic diagram of the structure of the antenna assembly provided in Example 3 of this application. Figure 2 ;

[0052] Figure 41 This is a schematic diagram of the structure of the antenna assembly provided in Example 3 of this application. Figure 3 ;

[0053] Figure 42 This is a schematic diagram of the current flow in the antenna assembly provided in Example 3 of the present application;

[0054] Figure 43 When the second switch unit is in the on state, the antenna assembly forms a 3D directional pattern in a dual-beam state when operating in the first frequency band;

[0055] Figure 44 The second switch unit is in the on state, and the antenna assembly operates in the first frequency band to form a 2D directional pattern and a local enlarged image in the single-beam and dual-beam states;

[0056] Figure 45 This is a partial schematic diagram of the electronic device provided in the third embodiment of the present application being held in landscape mode;

[0057] Figure 46This is the efficiency curve of the antenna assembly of Comparative Example 1 and Example 1 provided in this application in a horizontal screen handheld scenario.

[0058] Description of Figure Numbers:

[0059] Electronic device 1000; antenna assembly 100; display screen 200; middle frame 300; middle plate 310; back cover 400; frame 320; reference floor 500; main board 600; battery 700; sub-board 800; top frame 321; first side frame 322; bottom frame 324; second side frame 323; first floor edge 510; second floor edge 520; third floor edge 530; fourth floor edge 540; first radiator 11; resonant element 31; first feed source 21; first grounding point D1; first connection point H1; second connection point H2; first feed point A1; first open end E1; resonant section 32; band-stop structure 30; first current I1; second current I2; equivalent inductive element 33; equivalent capacitive element 34; coupling slot 32a; slot 32b; conductive element 311; inductive element 312; second capacitive element 313; first extension section 314; Second extension section 315; first resonant section 325; second resonant section 326; first coupling gap G1; conductive member 311; clearance area 35; first switch unit 41; first beam F1; second beam F2; first tuning element 42; third capacitive element 43; fifth beam F5; sixth beam F6; third beam F3; fourth beam F4; second radiator 12; second open end E2; second coupling gap G2; third current I3; second radiator 12; second open end E2; second feeding point A2; third matching circuit M3; second switch unit 44; first sub-beam F01; second sub-beam F02; first capacitive element 45; third open end E3; second grounding point D2; first inductive element L1; second inductive element L3; second feed source 22; first filtering circuit W1; second filtering circuit W2; third switch unit 46; second tuning element 47. DETAILED DESCRIPTION

[0060] The technical solution of this application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described in this application are only some embodiments, not all embodiments. Based on the embodiments provided in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0061] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it necessarily refer to mutually exclusive, independent, or alternative embodiments to other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0062] The terms "first," "second," and so on, in the specification and claims of this application and the accompanying drawings are used to distinguish between different objects, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a component or device comprising one or more parts is not limited to the one or more parts listed, but may optionally include one or more parts that are not listed but are inherent to the illustrated product, or one or more parts that should be present based on the described functionality.

[0063] See also Figure 1 , Figure 1 1 is a schematic diagram of the structure of an electronic device 1000 provided in an embodiment of the present application. Electronic device 1000 includes, but is not limited to, a mobile phone, tablet computer, laptop computer, computer, wearable device, drone, robot, digital camera, and other devices with communication functions. This embodiment of the present application uses a mobile phone as an example, and other electronic devices can refer to this embodiment.

[0064] See also Figure 2 , Figure 2: is a partially exploded schematic diagram of the electronic device 1000 provided in an embodiment of the present application. The electronic device 1000 includes an antenna assembly 100. Taking the electronic device 1000 as a mobile phone as an example, the working environment of the antenna assembly 100 is illustrated. The electronic device 1000 includes a display screen 200, a middle frame 300 and a back cover 400 arranged in sequence along the thickness direction. Among them, the middle frame 300 includes a middle plate 310 and a frame 320. The frame 320 is arranged around the display screen 200, the middle plate 310 and the back cover 400. The frame 320 is a conductive frame, such as a metal frame. A receiving space is formed between the display screen 200 and the middle plate 310, and between the middle plate 310 and the back cover 400 to accommodate devices such as a main board 600, a camera module, a receiver module, a battery 700, a sub-board 800 and various sensors. One side of the frame 320 along the thickness direction is connected to the edge of the display screen 200, and the other side of the frame 320 along the thickness direction is connected to the edge of the back cover 400 to form a complete appearance structure of the electronic device 1000. In this embodiment, the frame 320 and the middle plate 310 are an integral structure, for example, formed by processing a metal plate. The frame 320 and the back cover 400 are separate structures. The above is the working environment of the antenna assembly 100 using a mobile phone as an example, but the antenna assembly 100 of the present application is not limited to the above working environment.

[0065] See also Figure 3 , Figure 3 This is a partial back view of the electronic device 1000 provided in an embodiment of the present application, with the back cover 400 removed. The frame 320 includes a top frame 321, a first side frame 322, a bottom frame 324, and a second side frame 323, which are connected in sequence. The top frame 321 and the bottom frame 324 are arranged opposite each other, and the first side frame 322 and the second side frame 323 are connected between the top frame 321 and the bottom frame 324 and are arranged opposite each other. Among them, the top frame 321 is the side away from the ground when the user holds the electronic device 1000 in a vertical position (the screen faces the user), and the bottom frame 324 is the side facing the ground when the user holds the electronic device 1000 in a vertical position (the screen faces the user). The first side frame 322 is the right side when the user holds the electronic device 1000 in a vertical position (the screen faces the user). The second side frame 323 is the left side when the user holds the electronic device 1000 in a vertical position (the screen faces the user). Of course, the first side frame 322 can also be the left side when the user holds the electronic device 1000 in a vertical position (the screen faces the user). The second side frame 323 is the right side when the user holds the electronic device 1000 in his hand (with the screen facing the user).

[0066] Optionally, the top frame 321 is a straight frame, and the first side frame 322 and the second side frame 323 both have a straight frame in the middle, with curved frames at both ends. The bending angles of the curved frames at both ends of the first side frame 322 are both close to or equal to 90°. The bending angles of the curved frames at both ends of the second side frame 323 are both close to or equal to 90°. The curved frames are curved in an arc shape. The bottom frame 324 is a straight frame.

[0067] See also Figure 3 and Figure 4 Electronic device 1000 also includes a reference floor 500. Reference floor 500 is located within the area enclosed by frame 320. Reference floor 500 is generally rectangular in shape. Due to the need to locate components or accommodate other structures within the mobile phone, various slots and holes are provided along the reference ground edge of reference floor 500. Reference floor 500 includes, but is not limited to, the metal alloy portion of midplane 310 and the reference ground metal portion of the circuit board (including mainboard 600 and sub-board 800).

[0068] For details, please refer to Figure 3 and Figure 4 Reference floor 500 includes a first floor edge 510, a second floor edge 520, a third floor edge 530, and a fourth floor edge 540, which are connected end to end. The first floor edge 510 is disposed opposite the top frame 321. The second floor edge 520 is disposed opposite the first side frame 322. The third floor edge 530 is disposed opposite the second side frame 323. The fourth floor edge 540 is disposed opposite the bottom frame 324.

[0069] The specific structure of the antenna assembly 100 provided in the first embodiment is described below with reference to the accompanying drawings.

[0070] See also Figure 3 and Figure 4 The antenna assembly 100 includes a first radiator 11 , a resonator 31 and a first feed source 21 .

[0071] This application does not impose any specific restrictions on the material of the first radiator 11. Optionally, the first radiator 11 may be made of a conductive material, including but not limited to metals, alloys, and other conductive materials. This application does not impose any specific restrictions on the shape of the first radiator 11. For example, the shape of the first radiator 11 may include but is not limited to a strip, sheet, rod, coating, or film. Figure 3The first radiator 11 shown is merely an example and does not limit the shape of the first radiator 11 provided in this application. In this embodiment, the first radiator 11 is strip-shaped. This application does not limit the extension path of the first radiator 11. Optionally, the first radiator 11 may extend along a straight line, a curve, or a bend line. The first radiator 11 may be a line of uniform width along its extension path, or may be a strip of varying width, such as a strip with a gradually varying width or a widened area.

[0072] This application does not specifically limit the form of the first radiator 11. Optionally, the form of the first radiator 11 includes, but is not limited to, a metal frame 320, a metal frame embedded in the plastic frame 320, a metal radiator located in or on the surface of the frame 320, a flexible printed circuit board antenna formed on a flexible printed circuit board (FPC), a laser direct structured antenna using laser direct structure (LDS), a printed direct structured antenna using print direct structure (PDS), a conductive sheet antenna (e.g., a metal bracket antenna), etc. In this embodiment, the first radiator 11 is taken as a part of the metal frame 320 of the electronic device 1000 as an example.

[0073] The present application does not impose any specific restrictions on the specific location of the first radiator 11 on the metal frame 320. For example, the first radiator 11 can be located on the top frame 321, the first side frame 322, the second side frame 323, the bottom frame 324, or any of the four corners.

[0074] This application takes the first radiator 11 located at the first side frame 322 as an example. The first radiators 11 are arranged at intervals along the second floor edge 520. The extension direction of the first radiator 11 is parallel to the extension direction of the second floor edge 520.

[0075] See also Figure 3 and Figure 4 The first radiator 11 includes a first ground point D1, a first connection point H1, a second connection point H2, a first feeding point A1 and a first open end E1.

[0076] Specifically, the first ground point D1 and the first open end E1 are two ends of the first radiator 11. The first ground point D1 is electrically connected to the reference ground 500, and the first open end E1 is not connected to the reference ground 500.

[0077] For details, please refer to Figure 3 and Figure 4The first radiator 11 is a section of the metal frame 320. The first feeding point A1 is a portion of the first radiator 11. To facilitate connection between the first feeding point A1 and the first feed source 21, a small protrusion can be provided on the inner wall of the first radiator 11 at the location of the first feeding point A1, so as to electrically connect the first feeding source 21 on the mainboard 600 via a feeding spring. Of course, in other embodiments, the small protrusion can be omitted from the location of the first feeding point A1.

[0078] This application does not specifically limit the location of the feed point between the first ground point D1 and the first open end E1. Optionally, the feed point can be located closer to the first open end E1. This facilitates the subsequent placement of tuning components at the first connection point H1 and the second connection point H2. Furthermore, when the first open end E1 of the first radiator 11 is positioned adjacent to the mainboard, the feed point is located close to the first feed source 21 on the mainboard, facilitating electrical connection between the feed point and the first feed source 21 via the feed spring, thereby reducing transmission losses.

[0079] See also Figure 3 and Figure 4 On the first radiator 11, a resonant section 32 is provided between the first connection point H1 and the second connection point H2. The resonant section 32 includes at least one of a radiation branch section, a capacitor, an inductor, a resistor, and the like.

[0080] The two ends of the resonant element 31 are electrically connected to the first connection point H1 and the second connection point H2, respectively. Specifically, the resonant element 31 is a conductive structure. Functionally, the resonant element 31 includes, but is not limited to, an equivalent inductor or an equivalent capacitor. The specific structure of the resonant element 31 includes, but is not limited to, a conductive line, a conductive segment, a coupling gap, an inductor, a capacitor, and the like.

[0081] See also Figure 3 and Figure 4 , the resonant element 31 and the resonant section 32 form a band-stop structure 30. The resonant frequency band of the band-stop structure 30 includes the first frequency band. The resonant frequency band of the band-stop structure 30 refers to the frequency of the current confined within the band-stop structure 30, that is, the frequency of the current suppressed in the band-stop structure 30. In the present application, the resonant frequency band of the band-stop structure 30 includes the first frequency band. Therefore, the band-stop structure 30 can suppress most of the current in the first frequency band in the band-stop structure 30, so as to tune the current direction on the resonant section 32, and further tune the beam width or beam pointing of the antenna assembly 100 operating in the first frequency band.

[0082] The band-stop structure 30 is also a band-stop filter. The band-stop structure 30 is used to attenuate signals within its stopband to an extremely low level, thereby concentrating the current within the stopband near the band-stop structure 30. The stopband of the band-stop structure 30 covers the first frequency band. As a result, the current in the first frequency band is concentrated near the band-stop structure 30.

[0083] For example, the radiation branch segment between the first connection point H1 and the second connection point H2 is the resonant segment 32 .

[0084] Alternatively, a split resonant ring structure is formed between the resonant element 31 and the resonant section 32. The resonant frequency range of the split resonant ring includes the first frequency range. Therefore, the current in the first frequency range resonates within the split resonant ring structure to tune the current direction in the resonant section 32, thereby tuning the beam width or beam direction of the antenna assembly 100 operating in the first frequency range.

[0085] See also Figure 3 and Figure 4 , the first feed source 21 is electrically connected to the first feed point A1. The electrical connection described in this application includes a direct electrical connection between two structures, or an indirect electrical connection through other components. In this embodiment, the first feed source 21 is indirectly electrically connected to the first feed point A1 through an RF transmission line, a feed spring, or the like.

[0086] For further optional information, see Figure 3 and Figure 4 The antenna assembly 100 further includes a first matching circuit M1. The first matching circuit M1 is electrically connected between the first feed source 21 and the first feed point A1. The first matching circuit M1 includes at least one of a capacitor and an inductor. The first matching circuit M1 is used to achieve impedance matching between the first feed source 21 port (the aforementioned feed port) and the first radiator 11.

[0087] The first feed source 21 includes but is not limited to a radio frequency transceiver chip, a radio frequency front-end module, and the like.

[0088] The first feed source 21 is used to excite the first radiator 11 to form a first resonance mode supporting a first frequency band.

[0089] Specifically, the first feed source 21 is at least used to provide a radio frequency signal in a first frequency band.

[0090] The electrical length of the first radiator 11 is greater than 1 / 2 wavelength of the first frequency band. Optionally, the electrical length of the first radiator 11 is greater than 1 / 2 wavelength of the center frequency of the first frequency band. When the electrical length of the first radiator 11 is greater than 1 / 2 wavelength of the first frequency band, it means that the branch length of the first radiator 11 is relatively long, and the first radiator 11 can also be reused as a radiation branch of other frequency bands (for example, MHB band, LB band, etc.). Further examples will be given later.

[0091] In other words, at least one 1 / 2 wavelength current of the first frequency band can be formed on the first radiator 11. In the direction from the first opening end E1 to the first ground point D1, the distribution section of the first 1 / 2 wavelength current of the first frequency band is defined as the first 1 / 2 wavelength section, for example Figure 4 The portion from the first open end E1 to R1 is defined as the second 1 / 2 wavelength current distribution segment of the first frequency band, for example: Figure 4 The portion from R1 to R2 in the first frequency band is defined as the third 1 / 2 wavelength current distribution segment. For example, Figure 4 The portion from R2 to the first ground point D1. And so on. Of course, it is not limited to the electrical length of the first radiator 11 supporting 2 or 3 1 / 2 wavelength current distribution segments, nor is it limited to the electrical length of the first radiator 11 supporting an integer multiple of the 1 / 2 wavelength segment. Figure 4 The length of the portion from R2 to the first ground point D1 may be less than 1 / 2 wavelength.

[0092] In this embodiment, the electrical length of the radiator includes the electrical length corresponding to the physical length of the radiator itself, and also includes the electrical length of the radiator after tuning by capacitance and / or inductance, etc. Wherein, 1 / 2 wavelength refers to the medium wavelength in the medium.

[0093] This application does not specifically limit the size of the first frequency band. Optionally, the first frequency band includes, but is not limited to, at least one of the LB band (less than 1 GHz), the MHB band (1-3 GHz), the Wi-Fi 2.4G band, the UHB band (greater than 3 GHz), the Wi-Fi 5G band, and the GPS band. For example, the first frequency band is a band greater than 3 GHz. For further example, the first frequency band is at least one of Wi-Fi 5G, N79, and N78.

[0094] The electrical length between the second connection point H2 and the first open end E1 is greater than or equal to 1 / 2 wavelength of the first frequency band. That is, the electrical length distance between the resonant section 32 and the first open end E1 is greater than or equal to 1 / 2 wavelength of the first frequency band. Furthermore, when a resonant current of the first frequency band is formed on the first radiator 11, at least one 1 / 2 wavelength current of the first frequency band is distributed between the resonant section 32 and the first open end E1. That is, the resonant section 32 is located outside the first 1 / 2 wavelength band. Furthermore, the band-stop structure 30 is located in an area outside the first 1 / 2 wavelength band of the first radiator 11. For example, the band-stop structure 30 may be located in the area where the second 1 / 2 wavelength band of the first radiator 11 is located.

[0095] See also Figure 4The resonant current of the first resonant mode is distributed between the first ground point D1 and the first open end E1. In the direction from the first open end E1 to the first ground point D1, the resonant current of the first resonant mode includes at least a first current I1 and a second current I2 distributed in sequence.

[0096] The first current I1 is the first 1 / 2 wavelength current of the first frequency band. Since the electrical length between the second connection point H2 and the first open end E1 is greater than or equal to 1 / 2 wavelength of the first frequency band, the first current I1 of the first resonant mode (i.e., the first 1 / 2 wavelength current of the first frequency band) is distributed in the area between the second connection point H2 and the first open end E1. Furthermore, the first current I1 is distributed in the aforementioned first 1 / 2 wavelength band (e.g. Figure 4 the portion E1 to R1 on the first radiator 11).

[0097] In this embodiment, at least part of the second current I2 of the first resonant mode is distributed in the band-stop structure 30. Optionally, the second current I2 is a second 1 / 2 wavelength current of the first frequency band. The second current I2 is distributed in the aforementioned second 1 / 2 wavelength band (for example Figure 4 The portion from R1 to R2 on the first radiator 11 and the band-stop structure 30.

[0098] See also Figure 4 The current intensity distribution of the first current I1 is weak-strong-weak. The thickness of the dashed line representing the first current I1 represents the current intensity. Furthermore, the current mode of the first current I1 is or is close to a 1 / 2 wavelength mode.

[0099] The current intensity distribution of the second current I2 on the first radiator 11 is weak-strong-weak. The thickness of the dotted line representing the second current I2 represents the current intensity. It can be seen that the current intensity of the band-stop structure 30 is greater than the current intensity on the branches on the left and right sides of the band-stop structure 30 as a whole; the current of the open ring-shaped band-stop structure 30 formed by the resonant section 32 and the resonant component 31 also has a weak-strong-weak distribution to meet the 1 / 2 wavelength standing wave condition. For example, the opening of the band-stop structure 30 is located on the first radiator 11, and the current from one side of the opening of the band-stop structure 30 through the resonant component 31 to the other side of the opening of the band-stop structure 30 also has a weak-strong-weak distribution. Further, the current mode of the second current I2 is or is close to the 1 / 2 wavelength mode.

[0100] See also Figure 4 The direction of the first current I1 is the same as the direction of at least part of the second current I2 on the resonant section 32 .

[0101] For example, see Figure 4 , the direction of the first current I1 is the same as the overall direction of the second current I2 of the resonant section 32 .

[0102] For another example, the direction of the first current I1 is the same as the direction of the second current I2 in the resonant section 32 .

[0103] See also Figure 5 As a comparative example, the first radiator 11 is not provided with the resonator 31, and the first frequency band band-stop structure 30 is not formed at a position greater than 1 / 2 wavelength of the first frequency band from the first open end E1'. Because the electrical length of the first radiator 11 is greater than 1 / 2 wavelength of the first frequency band, and the current distribution on the first radiator 11 follows a standing wave pattern, the current direction periodically reverses every half wavelength (λ / 2). This results in a reverse current after a 1 / 2 wavelength of unidirectional current flows. Therefore, if the resonator 31 is not provided on the first radiator 11, the second 1 / 2 wavelength band (R1`-R2`) of the first radiator 11 will generate a current in the opposite direction to the first 1 / 2 wavelength band (E1`-R1`), and the far-field energy will be offset; for example, a current zero point is formed between the first 1 / 2 wavelength band (E1`-R1`) and the second 1 / 2 wavelength band (R1`-R2`), and this current zero point corresponds to the electric field zero point of the far-field radiation energy field, which in turn causes the beam to split into multiple lobes, resulting in a relative weakening of the gain of the main lobe. It should be noted that Figure 5 The distance between R1`-R2` in Figure 4 The distances between R1 and R2 can be the same or different.

[0104] The antenna assembly 100 provided in the present application includes a first radiator 11, a resonant element 31 and a first feed source 21, the first radiator 11 includes a first grounding point D1, a first connection point H1, a second connection point H2, a first feeding point A1 and a first open end E1, a resonance section 32 is set between the first connection point H1 and the second connection point H2; the two ends of the resonant element 31 are electrically connected to the first connection point H1 and the second connection point H2, the resonant element 31 and the resonant section 32 form a band-stop structure 30, and the resonant frequency band of the band-stop structure 30 includes the first frequency band; the first feed source 21 is electrically connected to the first feeding point A1, and the first feed source 21 is used to excite the first radiator 11 to form a first resonant mode supporting the first frequency band, the electrical length of the first radiator 11 is greater than 1 / 2 wavelength of the first frequency band, and the first resonant mode of the first radiator 11 is greater than 1 / 2 wavelength of the first frequency band. The electrical length between the second connection point H2 and the first open end E1 is greater than or equal to 1 / 2 wavelength of the first frequency band, the first current I1 of the first resonant mode is distributed between the second connection point H2 and the first open end E1, and at least part of the second current I2 of the first resonant mode is distributed in the band-stop structure 30. The direction of the first current I1 is the same as the direction of at least part of the second current I2 on the resonant segment 32. The above design enables the resonant segment 32 outside the 1 / 2 wavelength segment on the first radiator 11 to also form a current in the same direction as the first 1 / 2 wavelength segment. The reverse current in the second 1 / 2 wavelength segment is suppressed by the band-stop structure 30, avoiding far-field energy cancellation, less beam splitting, higher gain of the main lobe, and stronger directivity, thereby improving the communication efficiency of the electronic device 1000 in sending and receiving signals during communication.

[0105] The structural form of the band-stop structure 30 of the present application is described below with reference to the accompanying drawings.

[0106] Optional, see Figure 6 The band-stop structure 30 includes an equivalent inductive element 33 and an equivalent capacitive element 34.

[0107] The two ends of the equivalent inductive element 33 are respectively connected to the two ends of the equivalent capacitive element 34. In other words, the equivalent inductive element 33 and the equivalent capacitive element 34 are connected in parallel, which is equivalent to a resonant circuit of a parallel inductor and capacitor, thereby forming an LC band-stop resonant circuit in the first frequency band.

[0108] The equivalent capacitive element 34 includes a capacitive structure such as a coupling gap and / or a capacitor device.

[0109] The equivalent inductive element 33 includes a conductive element and / or an inductive device, etc., which can have an inductive structure.

[0110] This application does not specifically limit whether the equivalent capacitive element 34 is located on the resonant section 32 or the resonant component 31 . This application does not specifically limit whether the equivalent inductive element 33 is located on the resonant section 32 or the resonant component 31 .

[0111] In the first case, the resonant section 32 includes the aforementioned equivalent capacitive element 34 , and the resonant component 31 includes the aforementioned equivalent inductive element 33 .

[0112] For the first optional implementation, please refer to Figure 7 The resonant section 32 includes a coupling slot 32a. The coupling slot 32a can be located anywhere between the first connection point H1 and the second connection point H2. The resonant element 31 includes a conductive member 311. One end of the conductive member 311 is electrically connected to the first connection point H1, and the other end of the conductive member 311 is electrically connected to the second connection point H2.

[0113] The conductive member 311 includes, but is not limited to, at least one of a metal connecting piece, an FPC, copper foil, a steel sheet, or a PCB connecting wire. In this embodiment, the conductive member 311 is a metal connecting piece as an example. The shape of the metal connecting piece can be, but is not limited to, a U-shape, a bend, a zigzag, a curve, an arc, etc.

[0114] The size of the coupling slot 32a may be 0.5 to 2 mm. The coupling slot 32a enables the radiation branches on both sides thereof to transmit electrical signals even when they are not connected.

[0115] Furthermore, the conductive member 311 and the first radiator 11 may be an integrated structure, and the conductive member 311 and the first radiator 11 may be processed together when preparing the frame.

[0116] For the second optional implementation, please refer to Figure 8 The resonant section 32 includes a coupling slot 32a. The coupling slot 32a can be located anywhere between the first connection point H1 and the second connection point H2. The resonant element 31 includes an inductor 312. One end of the inductor 312 is electrically connected to the first connection point H1, and the other end of the inductor 312 is electrically connected to the second connection point H2.

[0117] For a third alternative implementation, see Figure 9 The resonant section 32 includes a slot 32b and a second capacitive element 313 with its ends connected to branches at both ends of the slot 32b. The slot 32b can be located anywhere between the first connection point H1 and the second connection point H2. The resonant element 31 includes a conductive element 311, one end of which is electrically connected to the first connection point H1, and the other end of which is electrically connected to the second connection point H2.

[0118] For the fourth optional implementation, please refer to Figure 10The resonant section 32 includes a slot 32b and a second capacitive element 313 with its ends connected to branches at both ends of the slot 32b. The slot 32b can be located anywhere between the first connection point H1 and the second connection point H2. The resonant element 31 includes an inductor 312, one end of which is electrically connected to the first connection point H1, and the other end of which is electrically connected to the second connection point H2.

[0119] In the second case, the resonant section 32 includes the aforementioned equivalent inductive element 33 , and the resonant element 31 includes the aforementioned equivalent capacitive element 34 .

[0120] For the first optional implementation, please refer to Figure 11 The resonant element 31 includes a coupling slot 32a. Optionally, the resonant element 31 further includes a first extension section 314 extending from the first connection point H1, with the coupling slot 32a formed between the first extension section 314 and the second connection point H2. Optionally, the resonant element 31 further includes a second extension section 315 extending from the second connection point H2, with the coupling slot 32a formed between the second extension section 315 and the first connection point H1. Optionally, the resonant element 31 further includes a first extension section 314 extending from the first connection point H1 and a second extension section 315 extending from the second connection point H2, with the coupling slot 32a formed between the first extension section 314 and the second extension section 315. The coupling slot 32a can be located at any position on the resonant element 31. The resonant section 32 is part of the first radiator 11.

[0121] For the second optional implementation, please refer to Figure 12 The resonant element 31 includes a coupling slot 32a. The coupling slot 32a can be located anywhere between the first connection point H1 and the second connection point H2. The formation of the coupling slot 32a can include the first optional embodiment described above. The resonant section 32 includes a slot 32b and an inductor 312 having two ends electrically connected to the branches at both ends of the slot 32b. One end of the inductor 312 is electrically connected to the first connection point H1, and the other end of the inductor 312 is electrically connected to the second connection point H2.

[0122] For a third alternative implementation, see Figure 13 The resonant element 31 includes a second capacitive element 313 . Two ends of the second capacitive element 313 are electrically connected to a first connection point H1 and a second connection point H2 , respectively. The resonant section 32 is a portion of the first radiator 11 .

[0123] For the fourth optional implementation, please refer to Figure 14The resonant element 31 includes a second capacitive element 313. The two ends of the second capacitive element 313 are electrically connected to a first connection point H1 and a second connection point H2, respectively. The resonant section 32 includes a slot 32b and an inductor 312 whose two ends are electrically connected to the branches at both ends of the slot 32b. One end of the inductor 312 is electrically connected to the first connection point H1, and the other end of the inductor 312 is electrically connected to the second connection point H2.

[0124] The electrical length of the first radiator 11 , the position of the band-stop structure 30 , and the electrical length of the band-stop structure 30 are described below with reference to the accompanying drawings.

[0125] Optionally, the equivalent electrical length of the band-stop structure 30 is 1 / 4 wavelength to 1 wavelength of the first frequency band. In combination with any of the aforementioned embodiments of the band-stop structure 30, the equivalent electrical length of the band-stop structure 30 is 1 / 4 wavelength to 1 wavelength of the first frequency band. Among them, the equivalent electrical length of the band-stop structure 30 includes the electrical length corresponding to the physical length of the band-stop structure 30 itself, and also includes the electrical length of the band-stop structure 30 after tuning by capacitance and / or inductance, that is, the actual electrical length can be tuned by loading inductance and / or capacitance. Among them, 1 / 4 wavelength and 1 wavelength refer to the dielectric wavelength in the medium.

[0126] Furthermore, the equivalent electrical length of the band-stop structure 30 is 1 / 2 wavelength of the first frequency band, so that the current on the band-stop structure 30 is the 1 / 2 wavelength mode current of the first frequency band. Further, a U-shaped current is formed from one side of the opening around the band-stop structure 30 to the other side, thereby forming a unidirectional current on the resonant section 32, and thereby causing the part outside the first 1 / 2 wavelength band of the first radiator 11 to generate more unidirectional current, thereby improving the far-field radiation energy superposition and increasing the gain of the antenna assembly 100 operating in the first frequency band.

[0127] Optionally, the electrical length between the first grounding point D1 and the first open end E1 is 0.75 to 1.75 wavelengths of the first frequency band. On the one hand, the above design forms 1.5 to 3.5 1 / 2 wavelength segments on the first radiator 11. When the first frequency band is a high frequency band, the first radiator 11 has sufficient length and can also multiplex and support the LB band or the MHB band. On the other hand, according to the above arrangement of the resonant element 31 and the formation of the band-stop structure 30, when the equivalent electrical length of the first radiator 11 is 1.5 to 2 1 / 2 wavelength segments, all unidirectional currents are formed on the first radiator 11. When the equivalent electrical length of the first radiator 11 is 2 to 3.5 1 / 2 wavelength segments, at least two 1 / 2 wavelength unidirectional currents are formed on the first radiator 11. In this way, the portion outside the first 1 / 2 wavelength band of the first radiator 11 can generate more unidirectional currents, thereby improving the superposition of far-field radiation energy and increasing the gain of the antenna assembly 100 operating in the first frequency band.

[0128] Further optionally, the electrical length between the first grounding point D1 and the first open end E1 is 1.25 wavelengths of the first frequency band. 2.5 1 / 2 wavelength bands are formed on the first radiator 11. On the one hand, at least two 1 / 2 wavelength unidirectional currents are formed on the first radiator 11, thereby improving the superposition of far-field radiation energy and increasing the gain of the antenna assembly 100 operating in the first frequency band. On the other hand, the first radiator 11 is compatible with and supports two frequency bands that are far apart, for example, the LB band and the UHB band (or Wi-Fi 5G band). Since the frequency bands between the LB band and the UHB band (or Wi-Fi 5G band) are far apart, when the antenna assembly 100 operates in the LB band and the UHB band (or Wi-Fi 5G band) at the same time, the mutual influence is relatively small.

[0129] Optionally, the electrical length between the second connection point H2 and the first open end E1 is greater than or equal to 1 / 2 wavelength of the first frequency band, and less than or equal to 1 wavelength of the first frequency band.

[0130] In this way, the resonant element 31 is located in the area where the second 1 / 2 wavelength band of the first radiator 11 is located, and the reverse current generated in the second 1 / 2 wavelength band of the first radiator 11 when the resonant element 31 is not set is suppressed, so that the area where the second 1 / 2 wavelength band of the first radiator 11 is located generates a current in the same direction as the first 1 / 2 wavelength band. The two 1 / 2 wavelength unidirectional currents are superimposed in the far-field energy, thereby increasing the gain of the antenna assembly 100 operating in the first frequency band.

[0131] Further optionally, the band-stop structure 30 is located near the middle of the second half-wavelength band of the first radiator 11, so as to form a weak-strong-weak U current distribution on the band-stop structure 30. That is, the center position of the band-stop structure 30 corresponds to the vicinity of the 0.75 wavelength position of the first radiator 11 (starting from the first opening end E1).

[0132] In the following, the present application uses the example of the resonant section 32 including the coupling gap and the resonant component 31 including the conductive component 311 as an example to illustrate the current distribution and the main radiation direction of the band-stop structure 30 with reference to the accompanying drawings.

[0133] Optional, see Figure 7 and Figure 15 The resonant section 32 includes a first resonant section 325 and a second resonant section 326. The first resonant section 325 includes a first connection point H1 and a first sub-opening end. The second resonant section 326 includes a second sub-opening end and a second connection point H2.

[0134] See also Figure 7 and Figure 15A first coupling gap G1 is formed between the first resonant segment 325 and the second resonant segment 326. Specifically, the first coupling gap G1 is formed between the first sub-opening end and the second sub-opening end. The size of the first coupling gap G1 can be 0.5 to 2 mm. The first coupling gap G1 enables the radiating branches on both sides to transmit electrical signals even when unconnected.

[0135] See also Figure 7 and Figure 15 The resonant element 31 includes a conductive element 311 . One end of the conductive element 311 is connected to the first connection point H1 of the first resonant segment 325 , and the other end of the conductive element 311 is connected to the second connection point H2 of the second resonant segment 326 .

[0136] The conductive member 311 includes, but is not limited to, at least one of a metal connecting piece, an FPC, copper foil, a steel sheet, or a PCB connecting wire. In this embodiment, the conductive member 311 is a metal connecting piece. Furthermore, the metal connecting piece in this embodiment is U-shaped and integrally formed with the first radiator 11. The conductive member 311 and the U-shaped metal connecting piece can be manufactured simultaneously during the manufacture of the frame.

[0137] In this embodiment, the resonant segment 32 and the U-shaped metal connecting piece form a split resonant ring structure with an opening located on the first radiator 11. The split resonant ring's resonant frequency is close to the center frequency of the first frequency band. The electrical length of the split resonant ring is approximately half the wavelength of the center frequency of the first frequency band. The first coupling gap G1 is located near the center of the second half-wavelength segment of the first radiator 11. The lengths of the first resonant segment 325 and the second resonant segment 326 are similar or identical.

[0138] When the first feed source 21 excites the first radiator 11 to form a first resonance mode supporting the first frequency band, the first current I1 is distributed in the first half wavelength band of the first radiator 11. The intensity distribution of the first current I1 is weak-strong-weak.

[0139] See also Figure 15 The second current I2 flows from the end of the first resonant segment 325 near the first coupling gap G1 along the first resonant segment 325, through the conductive element 311 and the second resonant segment 326, to the end of the second resonant segment 326 near the first coupling gap G1. In other words, the second current I2 flows from one end of the first coupling gap G1 through the open resonant ring to the other end of the first coupling gap G1. The current intensity distribution of the second current I2 is weak-strong-weak. The strong point of the second current I2 is near the center of the resonant element 31, and the weak point of the second current I2 is near the first coupling gap G1. In this way, both the first resonant segment 325 and the second resonant segment 326 form currents in the same direction as the first current I1.

[0140] The direction of the second current I2 on the first resonant section 325 is the same as the direction of the second current I2 on the second resonant section 326. The direction of the second current I2 on the second resonant section 326 is the same as the direction of the first current I1.

[0141] For example, the first current I1 flows to the left, the currents on the first resonant section 325 and the second resonant section 326 flow to the left, and the current on the first radiator 11 from the first connection point H1 to the first open end E1 flows to the left.

[0142] In this embodiment, after the band-stop structure 30 is added to the second half wavelength band of the first radiator 11 , the original reverse current at this position is suppressed, so that most branches on the first radiator 11 exhibit unidirectional current.

[0143] Optional, see Figure 16 The conductive member 311 is integrally formed with the first radiator 11. The conductive member 311 is located within the clearance area 35 of the first radiator 11. The clearance area 35 of the first radiator 11 is the space between the first radiator 11 and the reference floor 500. When the first radiator 11 is part of the first side frame 322 and the reference floor 500 is part of the midplane, the clearance area 35 of the first radiator 11 is the gap between the first side frame 322 and the midplane.

[0144] When machining the frame and the middle plate, a U-shaped metal connecting piece is milled on the side of the first side frame 322 facing the middle plate to form a cutting gap between the first side frame 322 and the middle plate.

[0145] Optional, see Figure 17a and Figure 17b The main radiation direction of the antenna assembly 100 when operating in the first frequency band includes the direction in which the first radiator 11 is away from the clearance area 35. Furthermore, the main radiation direction of the antenna assembly 100 when operating in the first frequency band is the direction from the second side frame to the first side frame 322.

[0146] On the one hand, because there are at least two 1 / 2 wavelength current modes on the first radiator 11, the reflection effect of the reference floor 500 makes the radiation beam of the antenna component 100 when operating in the first frequency band be directed toward the side where the first side frame 322 is located; on the other hand, the two 1 / 2 wavelength unidirectional currents superimpose energy in the far field, thereby improving the radiation gain; thirdly, the strong resonant current distribution in the first frequency band on the first radiator 11 is more concentrated, and the side lobes are reduced, thereby reducing the beam width, enhancing the beam radiation energy, improving the radiation gain, and realizing a high-gain antenna design.

[0147] The first comparative example is a case where the first radiator 11 is not provided with the first coupling gap G1 and the resonator 31 .

[0148] See also Figure 18 , Figure 18 This is the 3D radiation pattern of the first radiator 11 provided in the present application without the band-stop structure 30. As can be seen from the radiation pattern, since the first radiator 11 is not provided with the first coupling gap G1 and the resonator 31, the current directions between the first 1 / 2 wavelength segment and the second 1 / 2 wavelength segment on the first radiator 11 are opposite, and the current directions between the second 1 / 2 wavelength segment and the third 1 / 2 wavelength segment on the first radiator 11 are opposite. At this time, the first 1 / 2 wavelength segment and the second 1 / 2 wavelength segment on the first radiator 11 are the first current zero point, and the second 1 / 2 wavelength segment and the third 1 / 2 wavelength segment on the first radiator 11 are the second current zero point. In this way, the radiation pattern has multiple side lobes, which makes the radiation beam width wider and the maximum gain of the beam relatively small, for example, the maximum directivity coefficient is 4.3dBi.

[0149] See also Figure 17b , Figure 17b This is the 3D radiation pattern of the first radiator 11 provided in the first embodiment of the present application, in which the first coupling slot G1 and the resonator 31 are provided. As can be seen from the radiation pattern, due to the first coupling slot G1 and the resonator 31 being provided on the first radiator 11, a band-stop structure 30 is formed in the second 1 / 2 wavelength band on the first radiator 11, which suppresses the original reverse current and forms a strong current in the same direction as the branch of the first 1 / 2 wavelength band on the first radiator 11, reducing the current zero point and the side lobes. In addition, due to the provision of the band-stop structure 30, more resonant current is located in the band-stop structure 30, making the distribution of strong resonant current more concentrated and reducing side lobes, thereby enhancing the beam radiation energy and improving the radiation gain. For example, the maximum directivity coefficient is 7dBi. Compared with the first comparative example, the maximum directivity coefficient of the antenna assembly 100 provided in the first embodiment of the present application is increased from 4.3dBi to 7dBi.

[0150] The second comparative example is that the first radiator 11 is used as an IFA antenna and operates in the second frequency band.

[0151] See also Figure 19 , Figure 19 1 is a schematic structural diagram of a second comparative example provided in the present application. The first radiator 11 is an IFA antenna.

[0152] See also Figure 20 , Figure 20 This is the 3D pattern of the second comparative example provided in this application. As can be seen from the pattern, the pattern has multiple side lobes, the radiation beam width is relatively wide, and the maximum gain of the beam is relatively small.

[0153] See also Figure 21 , Figure 21 It can be seen that in the same direction (for example, the direction in which the second side frame points to the first side frame 322), the gain of the antenna assembly 100 provided by the present application in the direction in which the second side frame points to the first side frame 322 when operating in the first frequency band is 6.9dB ( Figure 21 Midpoint 1). In the second comparative example, when the IFA antenna operates in the first frequency band, the gain of the second side frame pointing to the direction of the first side frame 322 is 0.7 dB ( Figure 21 Midpoint 2). Compared to the IFA antenna in the second comparative example, the antenna assembly 100 provided in the present application has a gain increased by 6 dB in the direction in which the second side frame points to the first side frame 322 when operating in the first frequency band.

[0154] 5G NR and Wi-Fi 5G, the mainstream communication bands currently used by mobile phones, can cause network disconnections in indoor areas with weak signal strength, such as basements and inside large buildings, due to the poor wall penetration ability of 5G high-frequency signals. For example, at the same distance, N78 experiences 7-8dB more spatial propagation loss and dielectric penetration loss than MHB, and Wi-Fi 5G signal attenuation is 8dB greater than Wi-Fi 2.4G. Therefore, high-gain NR antennas or Wi-Fi 5G antennas are required to effectively improve signal strength through walls and reduce lag. Furthermore, in some special scenarios, such as remote mountainous areas, at sea, and in deserts, high-gain antennas can enhance mobile phone signals and address coverage challenges. Furthermore, high-gain antennas are a key technology for enabling direct communication between mobile phones and satellites. They effectively enhance signal transmission between mobile phones and satellites, overcome the significant losses in the satellite-to-ground link, compensate for the insufficient transmit power of mobile phones, and reduce the requirements for terminal antennas and transmit power, thereby achieving better communication quality. High-gain mobile phone antennas will play a vital role in 5G and future mobile communication systems, supporting higher speeds, lower latency, and wider connectivity.

[0155] The antenna assembly 100 provided in this application can be used to support 5G NR high frequencies and Wi-Fi 5G high-gain antennas, and has high gain. This allows for stronger wall penetration in indoor areas with weak signals, such as basements and inside large buildings. It also provides stronger signal strength in special scenarios, such as remote mountainous areas, at sea, and in deserts. Furthermore, the antenna assembly 100 provided in this application can also be used to support satellite frequency bands, effectively enhancing signal transmission between mobile phones and satellites.

[0156] The structure of the antenna assembly 100 provided in the second embodiment of the present application is illustrated below with reference to the accompanying drawings. The antenna assembly 100 provided in the second embodiment can switch the beam width when operating in the first frequency band to switch the coverage range of the first frequency band.

[0157] Optional, see Figure 23 The antenna assembly 100 further includes a first switch unit 41. The first switch unit 41 is connected between the first resonant segment 325 and the second resonant segment 326. The first switch unit 41 can be provided on an FPC, a small board, or a main board. The ends of the first switch unit 41 can be electrically connected to the first resonant segment 325 and the second resonant segment 326 via electrical wires, conductive springs, or the like.

[0158] See also Figure 23 When the first switch unit 41 is in the on state, the path of the first switch unit 41 short-circuits the resonant element 31. At this point, the first resonant segment 325 and the second resonant segment 326 are connected, and the resonant element 31 cannot form the band-stop structure 30 with the first and second resonant segments 325 and 326. In other words, the resonant element 31 is not functioning. At this point, the currents in the first half-wavelength band and the second half-wavelength band are in opposite directions, and the beam of the antenna assembly 100 operating in the first frequency band is the first beam F1.

[0159] See also Figure 22 When the first switch unit 41 is in the off state, the resonant element 31 forms a band-stop structure 30 with the first resonant section 325 and the second resonant section 326, and the beam of the antenna assembly 100 when operating in the first frequency band is the second beam F2. The width of the first beam F1 is different from the width of the second beam F2. Furthermore, as mentioned above, the width of the first beam F1 is greater than the width of the second beam F2. That is, when the first switch unit 41 is in the on state, the coverage angle range of the antenna assembly 100 operating in the first frequency band is greater than the coverage angle range of the antenna assembly 100 operating in the first frequency band when the first switch unit 41 is in the off state. Therefore, by switching the state of the first switch unit 41, the radiation pattern of the first frequency band can be switched, and switching between wide beam and narrow beam can be achieved to adapt to different application scenarios.

[0160] The antenna assembly 100 operates in a narrow beam in the first frequency band and can be used in areas with weak indoor signals, such as basements and inside large buildings, with stronger wall penetration capabilities; in some special scenarios, such as remote mountainous areas, at sea, in deserts, etc., it has stronger signal strength; and supports scenarios such as satellite frequency bands.

[0161] The beam of the antenna assembly 100 operating in the first frequency band is a wide beam, which can be applied in scenarios where the electronic device 1000 is in a mobile state or the electronic device 1000 is searching for a connection signal with a base station.

[0162] Optional, see Figure 24 , the antenna assembly 100 further includes at least one first tuning element 42 .

[0163] One end of the first tuning element 42 is electrically connected to one end of the first switch unit 41. The other end of the first tuning element 42 is electrically connected to the second resonant section 326. The first tuning element 42 includes a capacitor, an inductor, a short circuit, or a resistor.

[0164] The number of the first tuning element 42 may be one or more.

[0165] See also Figure 24 When the first switch unit 41 switches to turn on the third capacitor 43, the antenna assembly 100 operates in the first frequency band as the fifth beam F5. The beam width of the fifth beam F5 differs from the width of the first beam F1 and the width of the second beam F2. For example, the width of the fifth beam F5 lies between the widths of the first beam F1 and the second beam F2. This allows for switching between beams of varying widths within the first frequency band, enabling adjustment of a wider range of beam widths.

[0166] See also Figure 24 When the first switch unit 41 switches to the conductive inductor, the antenna assembly 100 operates in the first frequency band as the sixth beam F6. The beam width of the sixth beam F6 differs from the widths of the first beam F1, the second beam F2, and the fifth beam F5. For example, the width of the sixth beam F6 lies between the widths of the first beam F1 and the fifth beam F5. This allows for switching between beams of varying widths within the first frequency band, enabling adjustment of a wider range of beam widths.

[0167] In this embodiment, the directivity pattern can be changed by providing the first switch unit 41 and the first tuning element 42 , thereby achieving adjustable beam width. Furthermore, by providing different first tuning elements 42 , the beam width can be further fine-tuned.

[0168] Optionally, the resonant section 32 includes an equivalent inductive element 33 . The resonant component 31 includes an equivalent capacitive element 34 , which is a third capacitive component 43 .

[0169] See also Figure 24 The antenna assembly 100 further includes a first switch unit 41. One end of the first switch unit 41 is electrically connected to the first connection point H1. The other end of the first switch unit 41 is electrically connected to one end of the equivalent capacitive element 34 (third capacitive element 43), and the other end of the equivalent capacitive element 34 (third capacitive element 43) is electrically connected to the second connection point H2.

[0170] Of course, the positions of the third capacitor 43 and the first switch unit 41 can be exchanged.

[0171] See also Figure 24 When the first switch unit 41 is in the on state, the resonant section 32 and the third capacitive element 43 form a band-stop structure 30. The beam of the antenna assembly 100 when operating in the first frequency band is the third beam F3. The third beam F3 can refer to the aforementioned second beam F2.

[0172] See also Figure 24 When the first switch unit 41 is in the off state, the third capacitive element 43 cannot form a band-stop structure 30 with the resonant section 32. The beam of the antenna assembly 100 when operating in the first frequency band is the fourth beam F4. The fourth beam F4 can refer to the aforementioned first beam F1. The width of the third beam F3 is different from the width of the fourth beam F4. Furthermore, the width of the fourth beam F4 is greater than the width of the third beam F3.

[0173] That is, when the first switch unit 41 is in the on state, the coverage angle range of the antenna assembly 100 operating in the first frequency band is greater than the coverage angle range of the antenna assembly 100 operating in the first frequency band when the first switch unit 41 is in the off state. Therefore, by switching the state of the first switch unit 41, the radiation pattern of the first frequency band can be switched to achieve switching between wide beam and narrow beam to adapt to different application scenarios.

[0174] Optionally, the first feed source 21 is further configured to excite the first radiator 11 to generate a second resonance mode supporting a second frequency band. The maximum frequency of the second frequency band is less than the minimum frequency of the first frequency band.

[0175] Optionally, the first feed source 21 is further configured to provide an excitation signal in a second frequency band.

[0176] This application does not specifically limit the size of the second frequency band. Optionally, the second frequency band includes, but is not limited to, at least one of the LB band (less than 1 GHz), the MHB band (1-3 GHz), the Wi-Fi 2.4G band, the UHB band (greater than 3 GHz), the Wi-Fi 5G band, and the GPS band. For example, the second frequency band is a band less than 3 GHz. For further example, the second frequency band is at least one sub-band in the LB band.

[0177] For the second frequency band, the second resonance mode includes but is not limited to a 1 / 4 wavelength mode or a left-handed composite mode.

[0178] This embodiment designs the first radiator 11 to be longer, so that it can not only support the high-order mode (1 / 2 wavelength mode) of the high frequency band (second frequency band), but also support low frequency, and support more frequency bands without increasing the length of the first radiator 11.

[0179] Optionally, the center frequency of the first frequency band is 3 to 7 times the center frequency of the second frequency band. On the one hand, the first frequency band and the second frequency band are far apart, for example, 0.9 GHz and 5.5 GHz. In this way, the mutual coupling effect when the first frequency band and the second frequency band operate simultaneously is small, ensuring that both the first frequency band and the second frequency band have good efficiency. On the other hand, the electrical length of the first radiator 11 is approximately 1.5 to 3.5 1 / 2 wavelengths of the first frequency band, that is, the electrical length of the first radiator 11 is approximately 3 to 7 1 / 4 wavelengths of the first frequency band. For the second resonant mode being the 1 / 4 wavelength mode of the second frequency band, that is, the electrical length of the first radiator 11 is approximately 1 1 / 4 wavelength of the second frequency band, the center frequency of the first frequency band is 3 to 7 times the center frequency of the second frequency band.

[0180] For example, the first frequency band is at least one of Wi-Fi 5G, N79, and N78; the second frequency band is at least one of the B5 band, B8 band, B20 band, B28 band, etc. in the LB band, and the GPS-L1 band and GPS-L5 band.

[0181] The structure of the antenna assembly 100 provided in the third embodiment of the present application is illustrated below with reference to the accompanying drawings. The antenna assembly 100 provided in the third embodiment can form dual beams when operating in the first frequency band.

[0182] For the first optional implementation, please refer to Figure 25 and Figure 26 The antenna assembly 100 further includes a second radiator 12. The second radiator 12 includes a second open end E2.

[0183] The material and shape of the second radiator 12 may refer to the material and shape of the first radiator 11. When the first radiator 11 is a part of the first side frame 322, the second radiator 12 is also a part of the first side frame 322.

[0184] This application does not specifically limit the antenna structure of the second radiator 12. Optionally, the antenna structure of the second radiator 12 includes but is not limited to at least one of an IFA antenna, a left-handed antenna, a T-shaped antenna, a dipole antenna, a monopole antenna, and a 1 / 2 wavelength floating antenna.

[0185] See also Figure 25 and Figure 26 A second coupling gap G2 is formed between the second open end E2 and the first open end E1. The width of the second coupling gap G2 is approximately 0.5 to 2 mm (but not limited thereto). The second coupling gap G2 enables electrical signal transmission between the first radiator 11 and the second radiator 12 even when they are not directly electrically connected.

[0186] See also Figure 25 and Figure 26 When the first feed source 21 excites the first radiator 11 to generate a first resonance mode supporting the first frequency band, the second radiator 12 generates a third current I3 supporting the first frequency band. Specifically, when the first feed source 21 excites the first radiator 11 to generate the first resonance mode supporting the first frequency band, due to the coupling between the second radiator 12 and the first radiator 11, the second radiator 12 generates the third current I3 supporting the first frequency band under the coupling of the first radiator 11.

[0187] If the ends of the branches of the second radiator 12 meet the boundary conditions for supporting the resonant mode in the first frequency band, with the branches being short-circuited at the current-strong point and open-circuited at the current-weak point, the third current I3 can be the resonant current generated by the standing wave. For example, if one end of the second radiator 12 is grounded and the other end is open-circuited, and the electrical length is close to 1 / 4 wavelength in the first frequency band, the third current I3 can be the resonant current in the 1 / 4 wavelength mode. For example, if the ends of the second radiator 12 are open-circuited and the electrical length is close to 1 / 2 wavelength in the first frequency band, the third current I3 can be the resonant current in the 1 / 2 wavelength mode. Of course, if the branches of the second radiator 12 need to meet the standing wave boundary conditions in other frequency bands, resonant devices such as capacitors and inductors can be installed on the second radiator 12 to form an LC resonant circuit. The third current I3 can be the resonant current of the LC resonant circuit.

[0188] See also Figure 25 and Figure 26 The direction of the third current I3 is opposite to the direction of the first current I1. There is a current zero point between the third current I3 and the first current I1.

[0189] Generally, the current directions on both sides of the first feeding point A1 are opposite, that is, the direction of the third current I3 is opposite to the direction of the first current I1.

[0190] The current zero point forms a field depression region in the far-field energy radiation field, so the beams radiated by the first current I1 and the second current I2 are split from the beam radiated by the third current I3, that is, they are split into two beams.

[0191] In this embodiment, a second radiator 12 is designed to form a third current I3 supporting the first frequency band under the coupling of the first radiator 11. The third current I3 is opposite to the direction of the first current I1 to form a dual-beam radiation field. The dual beams have different directions (intersecting), thereby enabling the antenna assembly 100 to have more coverage directions or a larger coverage range when operating in the first frequency band.

[0192] For the second optional implementation, please refer to Figure 25 and Figure 26The antenna assembly 100 further includes a second radiator 12. The second radiator 12 includes a second open end E2. The second open end E2 is opposite to the first open end E1.

[0193] The present application does not specifically limit the distance between the first opening end E1 and the second opening end E2. The gap between the first opening end E1 and the second opening end E2 can couple the first radiator 11 and the second radiator 12, or it can eliminate the need for coupling.

[0194] See also Figure 27 The second radiator 12 also includes a second feed point A2. The second open end E2 is the end of the second radiator 12 closest to the first radiator 11. The second feed point A2 is located near the first open end E1 and is electrically connected to the first feed point A1. When the first feed source 21 excites the first radiator 11 to generate a first resonant mode supporting the first frequency band, due to the conduction between the first feed point A1 of the first radiator 11 and the second feed point A2 of the second radiator 12, the signal on the first radiator 11 can be coupled to the second radiator 12 through the path between the first feed point A1 and the second feed point A2. The second radiator 12 then generates a third current I3 supporting the first frequency band. The direction of the third current I3 is opposite to that of the first current I1. A current zero exists between the third current I3 and the first current I1. The current zero forms a field depression in the far-field energy radiation field. Therefore, the beams radiated by the first current I1 and the second current I2 are split from the beam radiated by the third current I3, thereby splitting into two beams. A dual-beam radiation field is formed, and the dual beams are directed in different directions (intersecting), thereby enabling the antenna assembly 100 to have more coverage directions or a larger coverage range when operating in the first frequency band.

[0195] In this embodiment, the first feed point A1 is directly electrically connected to the second feed point A2. For ease of explanation, this application defines the connection between the first feed point A1 and the second feed point A2 as a coupling line. The coupling line may be formed by, but is not limited to, a metal connecting segment, a metal trace, an FPC, copper foil, a steel sheet, a conductive spring, or a PCB connection line.

[0196] In this embodiment, the first radiator 11 and the second radiator 12 may share the first matching circuit M1 .

[0197] In other embodiments, the first feeding point A1 may be electrically connected to the second feeding point A2 via the first matching circuit M1. In other words, some components in the first matching circuit M1 may be electrically connected between the first feeding point A1 and the second feeding point A2.

[0198] If the ends of the branches of the second radiator 12 meet the boundary conditions for supporting the resonant mode in the first frequency band, with the branches being short-circuited at the current-strong point and open-circuited at the current-weak point, the third current I3 can be the resonant current generated by the standing wave. For example, if one end of the second radiator 12 is grounded and the other end is open-circuited, and the electrical length is close to 1 / 4 wavelength in the first frequency band, the third current I3 can be the resonant current in the 1 / 4 wavelength mode. For example, if the ends of the second radiator 12 are open-circuited and the electrical length is close to 1 / 2 wavelength in the first frequency band, the third current I3 can be the resonant current in the 1 / 2 wavelength mode. Of course, if the branches of the second radiator 12 need to meet the standing wave boundary conditions in other frequency bands, resonant devices such as capacitors and inductors can be installed on the second radiator 12 to form an LC resonant circuit. The third current I3 can be the resonant current of the LC resonant circuit.

[0199] For a third alternative implementation, see Figure 28 The first feed point A1 and the second feed point A2 are not directly connected, and the first feed source 21 is electrically connected to the second feed point A2 through the third matching circuit M3. That is, the first feed source 21 is electrically connected to the first feed point A1 and the second feed point A2 through their respective matching circuits.

[0200] Optionally, if the ends of the branches of the second radiator 12 meet boundary conditions for supporting a resonant mode in the first frequency band, being short-circuited at the current-strong point and open-circuited at the current-weak point, the third current I3 can be a resonant current formed by a standing wave. For example, if one end of the second radiator 12 is grounded and the other end is open-circuited, and the electrical length is close to 1 / 4 wavelength in the first frequency band, the third current I3 can be a resonant current in a 1 / 4 wavelength mode. For example, if both ends of the second radiator 12 are open-circuited and the electrical length is close to 1 / 2 wavelength in the first frequency band, the third current I3 can be a resonant current in a 1 / 2 wavelength mode.

[0201] In the fourth optional implementation, based on the second optional implementation, please refer to Figure 29 The antenna assembly 100 further includes a second switch unit 44. One end of the second switch unit 44 is electrically connected to the second feed point A2, and the other end of the second switch unit 44 is electrically connected to the first feed point A1. The second switch unit 44 is used to connect or disconnect the first feed point A1 and the second feed point A2.

[0202] When the second switch unit 44 is in the on state, the first feed point A1 and the second feed point A2 are conductive, and the first feed source 21 can excite the first radiator 11 to form a first current I1 and a second current I2 in the first frequency band, and couple to the second radiator 12 to form a third current I3 in the first frequency band. The direction of the first current I1 is the same as the direction of the second current I2 in the resonant section 32, and the direction of the third current I3 is opposite to the direction of the first current I1. The first current I1 and the second current I2 radiate to form a first sub-beam F01, and the third current I3 radiates to form a second sub-beam F02. The first sub-beam F01 and the second sub-beam F02 radiate in different directions.

[0203] When the second switch unit 44 is in the off state, the first feed source 21 is connected to the first feed point A1, and the first feed point A1 is disconnected from the second feed point A2. The first feed source 21 can excite the first radiator 11 to form a first current I1 and a second current I2 in the first frequency band. The first current I1 and the second current I2 in the resonant section 32 have the same direction. The first current I1 and the second current I2 in the resonant section 32 radiate to form a single beam (such as the first beam F1 or the third beam F3 described above).

[0204] Optionally, the first feed source 21 is positioned opposite to the first feed point A1, and the first feed point A1 can be electrically connected to the second feed point A2 (or the second switch unit 44) via a coupling line or a metal connecting segment.

[0205] Optional, see Figure 30 The antenna assembly 100 includes a first capacitor 45. One end of the first capacitor 45 is connected to one end of the second switch unit 44, and the other end of the first capacitor 45 is electrically connected to the second feeding point A2.

[0206] The capacitance of the first capacitive device 45 is greater than the coupling capacitance between the first open end E1 and the second open end E2 (of course, there may be no coupling between the first open end E1 and the second open end E2). Therefore, on one hand, the first capacitive device 45 can enhance the coupling between the first radiator 11 and the second radiator 12, thereby facilitating the generation of the third current I3 on ​​the second radiator 12.

[0207] On the other hand, since the connecting line between the first feeding point A1 and the second feeding point A2 (such as the aforementioned coupling line) itself has a parasitic impedance, and the parasitic impedance is inductive, the inductive impedance causes a current phase lag. The first open end E1 is the current zero point. The greater the phase lag on the path from the first open end E1 through the first feeding point A1, the coupling line, the second switch unit 44, the coupling line, and the second feeding point A2, the smaller the reverse current length formed by the third current I3 will be. If the phase lag caused by the connecting line between the first feeding point A1 and the second feeding point A2 (such as the aforementioned coupling line) is too large, it may cause the direction of the third current I3 to be the same as the direction of the first current I1, and it is impossible to form a radiation depression near the first feeding point A1, thereby forming a split dual beam.

[0208] In this embodiment, a first capacitor element 45 is provided in series with the second switch unit 44 to offset the inductive impedance caused by the connecting line (such as the aforementioned coupling line) between the first feeding point A1 and the second feeding point A2, thereby reducing the phase lag between the first feeding point A1 and the second feeding point A2, ensuring that the currents on both sides of the second coupling gap G2 are opposite, and forming dual-beam radiation.

[0209] The present application does not impose any specific limitation on the capacitance value of the first capacitance device 45. Optionally, the capacitance value of the first capacitance device 45 is sufficient to offset the parasitic impedance (phase lag) of the coupling line between the first feeding point A1 and the second feeding point A2.

[0210] Of course, in other implementations, the first capacitive device 45 may also be connected between the second switch unit 44 and the first feeding point A1.

[0211] Optionally, the second switch unit 44 and the first capacitor 45 may be omitted. The electrical lengths of the coupling lines from the first open end E1 to the first feeding point A1, between the first feeding point A1 and the second feeding point A2, and from the second feeding point A2 to the second open end E2 are approximately half the wavelength of the first frequency band. In this manner, the third current I3 formed in the second radiator 12 is in the same direction as the first current I1. This further enhances the same-direction current path during operation in the first frequency band, increases the radiation aperture, and improves radiation efficiency.

[0212] Further optionally, a second switch unit 44 and a first capacitor element 45 are provided between the first feeding point A1 and the second feeding point A2, one selection end of the second switch unit 44 can be turned on or off between the first feeding point A1 and the second feeding point A2, and the other selection end of the second switch unit 44 can be turned on or off between the first feeding point A1 and the first capacitor element 45.

[0213] When the second switch unit 44 conducts power between the first feed point A1 and the second feed point A2, the electrical lengths of the coupling lines from the first open end E1 to the first feed point A1, between the first feed point A1 and the second feed point A2, and from the second feed point A2 to the second open end E2 are approximately half the wavelength of the first frequency band. This allows the third current I3 formed in the second radiator 12 to flow in the same direction as the first current I1, further enhancing the co-directional current path during operation in the first frequency band, increasing the radiation aperture, and improving radiation efficiency.

[0214] When the second switch unit 44 conducts between the first feed point A1 and the first capacitive element 45, the electrical lengths of the coupling lines from the first open end E1 to the first feed point A1, between the first feed point A1 and the second feed point A2, and from the second feed point A2 to the second open end E2 are significantly less than half the wavelength of the first frequency band. Consequently, the third current I3 generated in the second radiator 12 is in the opposite direction to the first current I1, thereby generating dual-beam radiation.

[0215] Optionally, the electrical length of the second radiator 12 is 0.5 to 1 wavelength of the first frequency band. If the electrical length of the second radiator 12 is too small, it is difficult to form the third current I3 on ​​the second radiator 12. If the electrical length of the second radiator 12 is too large, the branches of the second radiator 12 may be too large, occupying a large space.

[0216] Specifically, the electrical length of the second radiator 12 is about 0.75 wavelengths of the first frequency band. On the one hand, it is ensured that there is at least one 1 / 2 wavelength segment on the second radiator 12 to form the third current I3 (at least one 1 / 2 wavelength current of the first frequency band). On the other hand, the electrical length of the second radiator 12 is designed to be slightly larger than 1 / 2 wavelength of the first frequency band, so that when the first frequency band is a high frequency band, the second radiator 12 has a relatively long length to support the MHB band, that is, the second radiator 12 can be reused to support multiple frequency bands.

[0217] The equivalent electrical length between the second feed point A2 and the second open end E2 is 0 to 0.5 wavelengths of the first frequency band. Optionally, the second feed point A2 is located in the first 0.25 wavelengths of the second radiator 12. If the equivalent electrical length between the second feed point A2 and the second open end E2 is too large, for example, greater than 0.5 wavelengths of the first frequency band, a reverse current (a current in the opposite direction to the first current I1) of 1 / 2 wavelength will flow on the coupling line between the first feed point A1 and the second feed point A2, and a third current I3 in the opposite direction to the first current I1 cannot be formed on the second radiator 12.

[0218] The following is an example description with reference to the structure of the second radiator 12 .

[0219] For the first optional implementation, please refer to Figure 30The second radiator 12 also includes a third open end E3 located on the side of the second feed point A2 away from the second open end E2. In other words, the second radiator 12 is an open-ended radiator. The electrical length of the second radiator 12 is half the wavelength of the first frequency band. Therefore, under the excitation of the first feed source 21 and the coupling of the first radiator 11, a half-wavelength current supporting the first frequency band is generated in the second radiator 12, and the third current I3 is also a half-wavelength current of the first frequency band.

[0220] In a second optional embodiment, the second radiator 12 further includes a third open end E3 located on the side of the second feed point A2 facing away from the second open end E2. The electrical length of the second radiator 12 is shorter than half the wavelength of the first frequency band. A parallel capacitor is provided between the second open end E2 of the second radiator 12 and the third open end E3 of the second radiator 12, so that the equivalent electrical length of the second radiator 12 after the parallel capacitor is close to half the wavelength of the first frequency band. In this way, under the excitation of the first feed source 21 and the coupling of the first radiator 11, a half-wavelength current supporting the first frequency band is generated in the second radiator 12, and the third current I3 is a half-wavelength current of the first frequency band.

[0221] For a third alternative implementation, see Figure 31 The second radiator 12 further includes a second grounding point D2 located between the second feed point A2 and the third open end E3. The second grounding point D2 is located near the third open end E3. Furthermore, when the first frequency band is a high frequency band (e.g., N79, Wi-Fi 5G), the second radiator 12 has a relatively long length, thereby being able to support the MHB band. That is, the second radiator 12 can multiplex and support multiple frequency bands.

[0222] See also Figure 32 and Figure 33 , the antenna assembly 100 includes a first inductive element L1 and a second inductive element L3.

[0223] See also Figure 32 and Figure 33 One end of the first inductive element L1 is electrically connected to the second feeding point A2, and the other end of the first inductive element L1 is grounded.

[0224] See also Figure 32 and Figure 33 One end of the second inductive element L3 is electrically connected to the second grounding point D2, and the other end of the second inductive element L3 is grounded.

[0225] This application does not impose any specific limitation on the size of the first inductive element L1 or the size of the second inductive element L3 .

[0226] In this embodiment, the electrical length of the second radiator 12 can be greater than half the wavelength of the first frequency band. The first inductive element L1, the second radiator 12, and the second inductive element L3 form a π-shaped inductor structure. The π-shaped inductor structure is equivalent to a T-shaped capacitor structure. The T-shaped capacitor structure, because it is equivalent to having a series capacitor in the branch, has the effect of shortening the physical length, so that the longer second radiator 12 (MHB antenna) can also support N79 and Wi-Fi 5G.

[0227] Optionally, the first inductive element L1 includes, but is not limited to, a metal connecting segment or an inductive device. The second inductive element L3 includes, but is not limited to, a metal connecting segment or an inductive device. In this embodiment, the first inductive element L1 is a metal connecting segment that is integrally interconnected with the second radiator 12 and located in the clearance area 35. In this embodiment, the second inductive element L3 is a metal connecting segment that is integrally interconnected with the second radiator 12 and located in the clearance area 35.

[0228] Alternatively, in other words, when the coupling line between the first feeding point A1 and the second feeding point A2 is conductive, a U-shaped current is coupled from the antenna feed to the second switch unit 44 when the second switching unit 44 is in the conductive state. The first resonant mode generates a third current I3 in the second radiator 12. The direction of the third current I3 is opposite to the direction of the first current I1. Thus, a current in the opposite direction to the first current I1 is generated in the radiator 12.

[0229] When the second switch unit 44 is in the on state, a first current I1 and a second current I2 in the same direction are distributed on the first radiator 11, and a third current I3 in the opposite direction to the first current I1 is distributed on the second radiator 12. A current zero point exists between the third current I3 and the first current I1. The current zero point forms a field depression within the far-field energy radiation field. Therefore, the beams radiated by the first current I1 and the second current I2 are split, i.e., split into two beams, between the beams radiated by the third current I3 and the beam radiated by the third current I3. When the antenna assembly 100 operates in the first frequency band, the beam includes a first sub-beam F01 and a second sub-beam F02. The first sub-beam F01 is deflected toward the side of the first ground point D1. The second sub-beam F02 is deflected toward the side of the second radiator 12. When the second radiator 12 has a second ground point D2, the second sub-beam F02 is deflected toward the side of the second ground point D2.

[0230] In this embodiment, by designing the second switch unit 44 and controlling the second switch unit 44 to be in the on state, a dual-beam radiation field is formed, and the dual beams have different directions (intersecting), so that the antenna assembly 100 has more coverage directions or a larger coverage range when operating in the first frequency band.

[0231] When the second switch unit 44 is in the off state, the second 1 / 2 wavelength band of the second radiator 12 is provided with a band-stop structure 30, thereby generating a first current I1 and a second current I2 in the same direction on the first radiator 11. The same-direction currents are energetically superimposed in the far field. When the antenna assembly 100 operates in the first frequency band, the beam includes a third sub-beam. The third sub-beam has a relatively high gain, and its coverage range is between the coverage ranges of the first sub-beam F01 and the second sub-beam F02. The third sub-beam can be any of the aforementioned first beam F1, second beam F2, third beam F3, and fourth beam F4.

[0232] Based on any of the above implementations, please refer to Figure 34 The antenna assembly 100 further includes a second feed source 22. The second feed source 22 is electrically connected to the second feed point A2. The second feed source 22 is configured to excite the second radiator 12 to form a third resonant mode supporting a third frequency band. The maximum frequency of the third frequency band is less than or equal to the minimum frequency of the first frequency band.

[0233] The ratio of the center frequency of the first frequency band to the center frequency of the third frequency band is 1 to 5 times. Furthermore, the ratio of the center frequency of the first frequency band to the center frequency of the third frequency band is about 3 times.

[0234] For example, the first frequency band is UHB band (above 3GHz) / Wi-Fi 5G, and the third frequency band includes MHB band (1~3GHz) / Wi-Fi2.4G / GPS L1 / GPS L5.

[0235] In this embodiment, the second feed source 22 is provided to excite the second radiator 12 to form a third resonance mode supporting the third frequency band. In this way, the second radiator 12 can serve not only as a radiation branch in the first frequency band, but also as a radiation branch in the third frequency band.

[0236] For example, the first feed source 21 can also excite the first radiator 11 to support a 1 / 4 wavelength mode in a second frequency band. The second frequency band includes but is not limited to an LB frequency band.

[0237] In this way, this embodiment simultaneously supports the first frequency band + the second frequency band + the third frequency band, namely, UHB band (above 3GHz) / Wi-Fi 5G + LB band + MHB band (1~3GHz) / Wi-Fi 2.4G / GPS L1 / GPS L5, and can support more frequency bands under relatively short radiators.

[0238] Optional, see Figure 34The antenna assembly 100 further includes the aforementioned first matching circuit M1 . The first matching circuit M1 is electrically connected between the first feeding point A1 and the first feed source 21 .

[0239] See also Figure 34 The first matching circuit M1 includes a first filter circuit W1. The first filter circuit W1 is used to filter out the third frequency band to prevent the third frequency band from affecting the first feed source 21. The first filter circuit W1 includes but is not limited to at least one of an inductor, a capacitor, and a resistor.

[0240] See also Figure 34 The antenna assembly 100 further includes a second matching circuit M2. The second matching circuit M2 is electrically connected between the second feed point A2 and the second feed source 22. The second matching circuit M2 includes, but is not limited to, at least one of an inductor, a capacitor, and a resistor. The second matching circuit M2 is used to achieve impedance matching between the second feed source 22 and the second radiator 12.

[0241] See also Figure 34 The second matching circuit M2 includes a second filter circuit W2. One end of the second filter circuit W2 is grounded. The second filter circuit W2 is configured to filter out the first frequency band to prevent the first frequency band from affecting the second feed source 22. The second filter circuit W2 includes, but is not limited to, at least one of an inductor, a capacitor, and a resistor.

[0242] Furthermore, the second filter circuit W2 acts as a short circuit for the first frequency band, directing the first frequency band to the reference ground 500 to prevent the first frequency band from affecting the second feed source 22. For example, the second filter circuit W2 includes, but is not limited to, an inductor element and a capacitor element connected in series, which are then electrically connected to the reference ground 500. The second filter circuit W2 acts as a small inductor to the ground for the third frequency band.

[0243] At the same time, the second filter circuit W2 also serves as the second feed source 22 to excite an impedance matching circuit of a resonance mode in the third frequency band on the second radiator 12 .

[0244] The above design enables the first feed 21 and the second feed 22 to operate simultaneously, the first radiator 11 and the second radiator 12 to support the first frequency band and the third frequency band simultaneously, and improves the isolation between the first feed 21 and the second feed 22. Furthermore, optionally, the first feed 21 and the second feed 22 operate simultaneously to support the first frequency band, the second frequency band, and the third frequency band simultaneously.

[0245] In this embodiment, the second feeding point A2 is grounded through a metal connection section and the second filter circuit W2 in the second matching circuit M2 , which is equivalent to small inductance grounding for the first frequency band.

[0246] Optionally, the second radiator 12 further includes a second grounding point D2, as described above, located between the second feed point A2 and the third open end E3. The second grounding point D2 can be electrically connected to the reference ground plane 500 via a metal connecting section, and acts as an equivalent small inductor for the first frequency band. For the third frequency band, it is short-circuited to ground, and the resonant current of the third resonant mode is distributed between the second open end E2 and the second grounding point D2. In other words, the electrical length between the second open end E2 and the second grounding point D2 is close to 1 / 4 wavelength of the third frequency band, so that the second open end E2 to the second grounding point D2 forms a 1 / 4 wavelength mode supporting the third frequency band under the excitation of the second feed source 22.

[0247] Optionally, the second radiator 12 further includes a second grounding point D2 as described above, located between the second feeding point A2 and the third open end E3.

[0248] See also Figure 35 The antenna assembly 100 further includes a third switch unit 46 and at least one second tuning element 47 .

[0249] One end of the third switch unit 46 is electrically connected to the second ground point D2, and the other end of the third switch unit 46 is electrically connected to one end of a second tuning element 47. The other end of the second tuning element 47 is grounded. Second tuning element 47 is used to tune the magnitude of the third frequency band. For the first frequency band, second tuning element 47 is an equivalent small inductor, forming a π-shaped inductor structure for the first frequency band.

[0250] Optionally, the number of the second tuning elements 47 is one or more.

[0251] For example, there are multiple second tuning elements 47, all of which are small inductors. For the first frequency band, all of the second tuning elements 47 are equivalent small inductors. Each second tuning element 47 has a different impedance, and the third switch unit 46 is switched to electrically connect to second tuning elements 47 with different impedance values ​​to tune the size of the third frequency band. For example, the second radiator 12 can be tuned to support the B3, B1, B39, B40, and B41 frequency bands to support different MHB bands, while ensuring that the current mode of the first frequency band (UHB band, N78 band, or N79 band) is not affected.

[0252] Optionally, the first radiator 11 is located on the first side frame 322 and is outside the handheld area when the electronic device 1000 is held in landscape mode. In this way, the electronic device 1000 is not affected by the hand when held in landscape mode, ensuring better efficiency of the electronic device 1000 when held in landscape mode.

[0253] For further optional information, see Figure 36The first radiator 11 and the second radiator 12 are both located in the first side frame 322, and the first radiator 11 and the second radiator 12 are both located in the handheld area when the electronic device 1000 is held in landscape mode ( Figure 36 In this way, the electronic device 1000 will not be affected by the hand when it is held in landscape mode, ensuring that the electronic device 1000 has better efficiency when it is held in landscape mode.

[0254] If the band-stop structure 30 is not provided in the second half-wavelength band of the first radiator 11, current distributions (first current I1 and second current I2) with different directions are formed on the first radiator 11, and correspondingly, current distributions with different directions are formed on the reference floor 500. When the electronic device 1000 is held in landscape mode, the proximity of the hand has a greater impact on the first frequency band, resulting in a significant reduction in efficiency when the band-stop structure 30 is not provided on the first radiator 11.

[0255] In the present application, by providing a band-stop structure 30 in the second half-wavelength band of the first radiator 11, current distributions (first current I1 and second current I2) with the same direction are formed on the first radiator 11, and correspondingly, current distributions with the same direction are formed on the reference floor 500. When the electronic device 1000 is held in landscape mode, the influence of a hand approaching the first frequency band is relatively small, thereby increasing the efficiency of the antenna assembly 100 operating in the first frequency band when the electronic device 1000 is held in landscape mode.

[0256] Optionally, the antenna assembly 100 provided in the present application is a high-gain antenna, in which the first radiator 11 is a short-circuit branch that is much longer than a quarter wavelength. For example, the electrical length of the first radiator 11 is 1.25 times the wavelength of the first frequency band (e.g., the Wi-Fi 5G band). An equivalent LC band-stop resonance structure is loaded at a specific position in the middle of the first radiator 11. The resonant section 32 of the first radiator 11 is provided with a first coupling gap G1, and the first coupling gap G1 is flanked by a first resonant section 325 and a second resonant section 326. The resonant section 32 and the resonant element 31 together form a band-stop structure 30 that suppresses reverse current in the first frequency band.

[0257] See also Figure 37The electrical length of the first radiator 11 is about 1.25 wavelengths of the center frequency of the first frequency band (for example, 0.75 to 1.75 wavelengths), and the position of the first feeding point A1 can be flexibly set; at the same time, in the direction from the first open end E1 to the first grounding point D1, the band-stop structure 30 is located near the position of 0.75 wavelengths (for example, in the range of 0.5 to 1.0 wavelengths), and the electrical length of the band-stop structure 30 is about half the wavelength of the first frequency band (0.25 to 1 wavelength). Of course, the actual electrical length of the band-stop structure 30 can also be adjusted by loading capacitors and inductors. The equivalent LC resonant frequency of the band-stop structure 30 is the frequency of the high-gain state of this antenna.

[0258] The first coupling gap G1 of the band-stop structure 30 can be equivalent to a capacitor, and the U-shaped metal sheet of the band-stop structure 30 can be equivalent to an inductor, forming a parallel LC resonant circuit as a whole, which has a suppressive effect on the current of a specific frequency, and its resonant current is manifested as a circle around the entire U-shaped ring.

[0259] See also Figure 38 , Figure 38 This is a current simulation diagram provided by the present application when the first radiator 11 is not provided with the band-stop structure 30. It can be seen that when the first radiator 11 is excited, a half-wave reverse current appears in the second half-wavelength segment after a half-wave current passes through the first opening end E1.

[0260] See also Figure 39 , Figure 39 This is a current simulation diagram provided by the present application with a band-stop structure 30 installed on the first radiator 11. It can be seen that after the band-stop structure 30 is added, when the first radiator 11 is excited, the reverse current in the second half-wavelength segment is suppressed, and the entire segment of the first radiator 11 exhibits a unidirectional current.

[0261] See also Figure 18 , Figure 18 This is the 3D radiation pattern of the first radiator 11 provided in this application without the band-stop structure 30. It can be seen that when the first radiator 11 is excited, it generates a forward half-wavelength current and a reverse half-wavelength current. The current zero point is located between the forward half-wavelength current and the reverse half-wavelength current, forming a depression in the radiation field. The radiation field has multiple side lobes.

[0262] See also Figure 17b , Figure 17b This is the 3D radiation pattern of the first radiator 11 provided by this application, with the band-stop structure 30 installed. As can be seen, after the band-stop structure 30 is added, when the first radiator 11 is excited, the reverse current in the second half-wavelength segment is suppressed, and the entire segment of the first radiator 11 exhibits a unidirectional current. The radiation pattern with multiple side lobes is significantly narrowed, the gain is increased, and the maximum directivity is improved from 4.3dBi to 7dBi.

[0263] See also Figures 19 to 21 By comparing the 3D radiation pattern and the planar radiation pattern of the antenna assembly 100 provided in the present application with those of the conventional IFA antenna when operating in the first frequency band, it can be seen that the gain of the antenna assembly 100 provided in the present application is improved by 6dB compared with the conventional IFA at the middle angle of the mobile phone.

[0264] Based on the high-gain antenna provided above, this application also proposes a method for implementing beam switching, switching from a high-gain narrow beam to a dual beam to improve coverage.

[0265] See also Figure 32 and Figure 40 On the basis of the above-mentioned high-gain structure, a short-circuit branch (the second radiator 12) is added on one side of the first open end E1, and a coupling line is added between the first feeding point A1 and the second feeding point A2. By controlling the conduction or disconnection of the second switch unit 44, it is selected whether to couple and connect the additional short-circuit branch.

[0266] See also Figure 41 and Figure 42 , the second feeding point A2 of the second radiator 12 is grounded through the metal connecting section and the first filter circuit W1 to form an equivalent small inductor (i.e., the first inductive element L1) to be grounded. The second grounding point D2 of the second radiator 12 is grounded through the metal connecting section to form an equivalent small inductor (i.e., the second inductive element L3) to be grounded. The first inductive element L1, the second radiator 12, and the third inductive element form a π-shaped inductor equivalent circuit. The π-shaped inductor equivalent circuit can be converted into a T-shaped capacitor equivalent circuit. Due to the presence of a series capacitor in the middle of the T-shaped capacitor equivalent circuit, the frequency is reduced compared to a circuit without a series capacitor branch, which has the effect of increasing the electrical length and shortening the physical size. If the first inductive element L1 and the second inductive element L3 are not provided, the branch length of the second radiator 12 itself is greater than the electrical length of the first frequency band. After passing through the first inductive element L1 and the second inductive element L3, the frequency point of the second radiator 12 moves toward the high frequency side to form the third current I3 of the first frequency band.

[0267] See also Figure 41 and Figure 42The electrical length of the second radiator 12 is approximately 0.75 wavelengths (0.5 to 1 wavelength) in the first frequency band. As viewed from the first radiator 11 toward the second radiator 12, the second feeding point A2 is located in the first 0.25 wavelength portion (0 to 0.5 wavelength) of the first frequency band of the second radiator 12, and the second grounding point D2 is located in the last 0.5 wavelength portion (0.25 to 0.75 wavelength) of the first frequency band of the second radiator 12. The present application is not limited to the form of the coupling line; any electrical connection structure that can electrically connect the first feeding point A1 and the second switching unit 44 to the second feeding point A2 on the second radiator 12 is sufficient. The coupling line can offset the parasitic impedance of the coupling line itself by connecting a series capacitor / inductor, etc.

[0268] See also Figure 40-42 When the second switch unit 44 is in the on state, a U-shaped current is coupled from the antenna feed of the first radiator 11 to the second radiator 12 on the right, thereby generating a current in the opposite direction to the original current, offsetting the forward radiation and forming a dual-beam radiation pattern.

[0269] See also Figure 43 , Figure 43 When the second switch unit 44 is in the on state, the antenna assembly 100 forms a 3D directional pattern in the dual-beam state when operating in the first frequency band.

[0270] See also Figure 44 , Figure 44 When the second switch unit 44 is in the on state, the antenna assembly 100 forms a 2D directional pattern and a local enlarged image in the single-beam and dual-beam states when operating in the first frequency band.

[0271] As can be seen, when the second switch unit 44 is on, the antenna assembly 100 forms a dual-beam configuration when operating in the first frequency band, pointing at angles of 60 degrees and 120 degrees, while forming a recessed position at 90 degrees. When the second switch unit 44 is on, the antenna assembly 100 forms a single beam pointing at approximately 85 degrees when operating in the first frequency band, complementing each other. Compared to the single beam configuration, the dual-beam configuration improves gain by 5-7 dB in the 25-50 degree and 110-150 degree ranges.

[0272] The present application provides a high-gain antenna that, by adding a band-stop structure 30 to a long-branch high-order mode antenna, blocks reverse current and retains only unidirectional current, compressing energy to increase gain and radiating a high-gain beam. The gain of the conventional IFA solution is increased by more than 6dB in the maximum direction. The present application can also select whether to couple additional parasitic branches (second radiators 12) by loading the coupling line of the second switching unit 44, forming a reverse current to generate dual beams, realize beam switching, switch between single-beam and dual-beam modes, change the directional pattern, and improve coverage. The present application is compatible with a multi-antenna architecture. For example, the first radiator 11 of the present application is suitable for supporting high frequency bands such as N79 and Wi-Fi 5G. Because the band-stop structure 30 is equivalent to a small inductor connection for the low-frequency antenna, the high-gain antenna body can be reused as a low-frequency antenna, that is, the first radiator 11 can also be reused as a low-frequency antenna branch. The first radiator 11 and the second radiator 12 can support, for example, LB / MHB / Wi-Fi2.4G / GPS L1 / L5+Wi-Fi 5G / N79 / N78 antenna combinations. The frequency ratio between the two is about 5 times (3 to 7 times is acceptable), and the position of the first grounding point D1 can be adjusted (switched) by adding a capacitor-inductor switch matching to adjust (switch) the low-frequency antenna operating frequency.

[0273] See also Figure 17a 、 Figure 17b 、 Figure 18 、 Figure 22 、 Figure 24 The metal connecting piece of the band-stop structure 30 of the high-gain antenna provided in this application is not limited in form and can be replaced by FPC, copper foil, steel sheet or PCB connecting wire, and the directional pattern can be changed from a wide beam to a narrow beam through series switching and matching.

[0274] See also Figure 35 The high-gain antenna provided in this application is used for beam switching, and the second radiator 12 added can also be reused as other antennas. The first feed source 21 can provide excitation signals for the LB band and the Wi-Fi 5G band, and the second feed source 22 can provide the MHB band and the Wi-Fi 2.4G band. The frequency ratio of the first band to the third band is about 3 times (1 to 5 times on average). Similarly, a second tuning element 47 can be loaded at the second ground point D2 to adjust the frequency of the third band, which can realize all cellular low, medium and high frequency bands + Wi-Fi, and each matching circuit has a band-stop filter.

[0275] See also Figure 13 The positions of the equivalent inductive element 33 and the equivalent capacitive element 34 of the high-gain antenna design provided in this application are interchangeable, so there is no need to open additional slits on the metal frame antenna, that is, there is no need to set the first coupling gap G1, thereby ensuring the simplicity of the appearance. Figure 13 The radiation branch between the first connection point and the second connection point is an equivalent inductive element 33, Figure 13The second capacitive element 313 in FIG. 3 is an equivalent capacitive element 34 .

[0276] See also Figure 45 and Figure 46 , Figure 46 These are the efficiency curves for the antenna assembly 100 in the comparative example 1 and the embodiment provided herein, in a horizontal handheld scenario. Curve a shows the efficiency curve for the comparative example 1 provided herein, in a horizontal handheld scenario. Curve b shows the efficiency curve for the antenna assembly 100 in the embodiment provided herein, in a horizontal handheld scenario. In the antenna assembly 100 in the embodiment of the present application, since the band-stop structure 30 suppresses reverse current (-10 dB), it can be used to significantly improve the efficiency of high-order mode high-frequency antennas compatible with low-frequency antennas, resulting in improved efficiency.

[0277] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application, and 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: include: A first radiator includes a first grounding point, a first connection point, a second connection point, a first feeding point, and a first open end, wherein a resonant section is provided between the first connection point and the second connection point; a resonant element, wherein two ends of the resonant element are electrically connected to the first connection point and the second connection point respectively, the resonant element and the resonant section form a band-stop structure, and the resonant frequency band of the band-stop structure includes the first frequency band; and A first feed source, the first feed source is electrically connected to the first feed point, the first feed source is used to excite the first radiator to form a first resonant mode supporting a first frequency band, the electrical length of the first radiator is greater than 1 / 2 wavelength of the first frequency band, the electrical length between the second connection point and the first open end is greater than or equal to 1 / 2 wavelength of the first frequency band, the first current of the first resonant mode is distributed between the second connection point and the first open end, at least part of the second current of the first resonant mode is distributed in the band-stop structure, and the direction of the first current is the same as the direction of at least part of the second current on the resonant segment.

2. The antenna assembly according to claim 1, wherein: The band-stop structure includes an equivalent inductive element and an equivalent capacitive element, the two ends of the equivalent inductive element are respectively connected to the two ends of the equivalent capacitive element, the equivalent capacitive element includes a coupling gap and / or a capacitor device, and the equivalent inductive element includes a conductive element and / or an inductive device.

3. The antenna assembly according to claim 2, wherein: The resonant section includes the equivalent capacitive element, and the resonant component includes the equivalent inductive element.

4. The antenna assembly according to claim 2, wherein: The resonant section includes the equivalent inductive element, and the resonant component includes the equivalent capacitive element.

5. The antenna assembly according to claim 1, wherein: The equivalent electrical length of the band-stop structure is 1 / 4 wavelength to 1 wavelength of the first frequency band.

6. The antenna assembly according to claim 1, wherein: The electrical length between the first ground point and the first open end is 0.75 to 1.75 wavelengths of the first frequency band.

7. The antenna assembly according to claim 1, wherein: The electrical length between the second connection point and the first open end is less than or equal to one wavelength of the first frequency band.

8. The antenna assembly according to claim 1, wherein: The resonant section includes a first resonant section and a second resonant section, and a first coupling gap is formed between the first resonant section and the second resonant section; the resonant component includes a conductive component, one end of the conductive component is connected to the first connection point of the first resonant section, and the other end of the conductive component is connected to the second connection point of the second resonant section.

9. The antenna assembly according to claim 8, wherein: The second current flows from one end of the first resonant section close to the first coupling slot along the first resonant section, through the conductive member and the second resonant section, to one end of the second resonant section close to the first coupling slot.

10. The antenna assembly according to claim 8, wherein The conductive member and the first radiator are an integrated structure, and the conductive member is located in a clearance area of ​​the first radiator.

11. The antenna assembly according to claim 9, wherein: The direction of the second current on the first resonant segment is the same as the direction of the second current on the second resonant segment, and the direction of the second current on the second resonant segment is the same as the direction of the first current.

12. The antenna assembly according to claim 1, wherein The main radiation direction of the antenna assembly when operating in the first frequency band includes the direction in which the first radiator is away from the clearance area.

13. The antenna assembly according to claim 8, wherein The antenna assembly also includes a first switching unit, which is connected between the first resonant segment and the second resonant segment; when the first switching unit is in an on state, the beam of the antenna assembly when operating in the first frequency band is a first beam, and when the first switching unit is in an off state, the beam of the antenna assembly when operating in the first frequency band is a second beam, and the width of the first beam is different from the width of the second beam.

14. The antenna assembly according to claim 13, wherein: The antenna assembly also includes at least one first tuning element, one end of the first tuning element is electrically connected to one end of the first switching unit, and the other end of the first tuning element is electrically connected to the second resonant segment, and the first tuning element includes a capacitor, an inductor, a short circuit, or a resistor.

15. The antenna assembly according to claim 4, wherein: The equivalent capacitive element is a capacitor element, and the antenna assembly also includes a first switching unit, one end of the first switching unit is electrically connected to the first connection point, the other end of the first switching unit is electrically connected to one end of the equivalent capacitive element, and the other end of the equivalent capacitive element is electrically connected to the second connection point; when the first switching unit is in the on state, the beam of the antenna assembly when operating in the first frequency band is the third beam, and when the first switching unit is in the off state, the beam of the antenna assembly when operating in the first frequency band is the fourth beam, and the width of the third beam is different from the width of the fourth beam.

16. The antenna assembly according to claim 1, wherein: The first feed source is further used to excite the first radiator to generate a second resonance mode supporting a second frequency band, where the maximum frequency of the second frequency band is less than the minimum frequency of the first frequency band.

17. The antenna assembly according to claim 16, wherein: The center frequency of the first frequency band is 3 to 7 times the center frequency of the second frequency band.

18. The antenna assembly according to claim 1, wherein: The antenna assembly also includes a second radiator, which includes a second open end. A second coupling gap is formed between the second open end and the first open end. When the first resonant mode is formed on the first radiator, a third current supporting the first frequency band is also formed on the second radiator, and the direction of the third current is opposite to the direction of the first current.

19. The antenna assembly according to claim 1, wherein: The antenna assembly also includes a second radiator, which includes a second open end and a second feeding point. The second open end is opposite to the first open end, and the second feeding point is electrically connected to the first feeding point. When the first resonant mode is formed on the first radiator, a third current supporting the first frequency band is also formed on the second radiator.

20. The antenna assembly according to claim 19, wherein The antenna assembly further includes a second switch unit, one end of the second switch unit is electrically connected to the second feeding point, and the other end of the second switch unit is electrically connected to the first feeding point.

21. The antenna assembly according to claim 20, wherein: The antenna assembly includes a first capacitive device, one end of the first capacitive device is connected to one end of the second switch unit, and the other end of the first capacitive device is electrically connected to the second feeding point.

22. The antenna assembly according to any one of claims 18 to 20, wherein: The electrical length of the second radiator is 0.5 to 1 wavelength of the first frequency band.

23. The antenna assembly according to claim 20, wherein: The second radiator further includes a third open end located on a side of the second feeding point away from the second open end.

24. The antenna assembly according to claim 23, wherein: The second radiator also includes a second grounding point located between the second feeding point and the third open end, and the antenna assembly includes a first inductive element and a second inductive element, one end of the first inductive element is electrically connected to the second feeding point, and the other end of the first inductive element is grounded, one end of the second inductive element is electrically connected to the second grounding point, and the other end of the second inductive element is grounded.

25. The antenna assembly according to claim 20, wherein The equivalent electrical length between the second feeding point and the second open end is 0 to 0.5 wavelengths of the first frequency band.

26. The antenna assembly according to claim 20, wherein: When the second switch unit is in the on state, the first resonant mode generates a third current in the second radiator, and the direction of the third current is opposite to the direction of the first current.

27. The antenna assembly according to claim 20, wherein When the second switch unit is in the on state, the beam of the antenna assembly when operating in the first frequency band includes a first sub-beam and a second sub-beam, the first sub-beam is biased toward the side where the first grounding point is located, and the second sub-beam is biased toward the side where the second radiator is located; when the second switch unit is in the off state, the beam of the antenna assembly when operating in the first frequency band includes a third sub-beam, and the coverage range of the third sub-beam is between the coverage range of the first sub-beam and the coverage range of the second sub-beam.

28. The antenna assembly according to claim 20, wherein The antenna assembly also includes a second feed source, which is electrically connected to the second feed point. The second feed source is used to excite the second radiator to form a third resonant mode supporting a third frequency band, and the maximum frequency of the third frequency band is less than or equal to the minimum frequency of the first frequency band.

29. The antenna assembly of claim 28, wherein: The antenna assembly further includes a first matching circuit, the first matching circuit being electrically connected between the first feeding point and the first feed source, the first matching circuit including a first filtering circuit, the first filtering circuit being configured to filter out the third frequency band; The antenna assembly also includes a second matching circuit, which is electrically connected between the second feeding point and the second feed source. The second matching circuit includes a second filter circuit, one end of which is grounded, and the second filter circuit is used to filter out the first frequency band.

30. The antenna assembly of claim 28, wherein: The second radiator also includes a second grounding point located between the second feeding point and the third open end; the antenna assembly also includes a third switching unit and at least one second tuning element, one end of the third switching unit is electrically connected to the second grounding point, the other end of the third switching unit is electrically connected to one end of the second tuning element, and the other end of the second tuning element is grounded; the second tuning element is used to tune the size of the third frequency band, and the second tuning element is an equivalent small inductor for the first frequency band.

31. An electronic device, characterized in that: The invention comprises the antenna assembly according to any one of claims 1 to 30.

32. The electronic device according to claim 31, wherein The electronic device also includes a top frame, a first side frame, a bottom frame, and a second side frame connected in sequence. The first radiator is located on the first side frame, and the first radiator is located outside the handheld area when the electronic device is held in landscape mode.

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