Antenna assembly and electronic equipment

Abstract

The invention provides an antenna assembly and electronic equipment, the antenna assembly comprises a first radiator, a first feed source, a second radiator, a second feed source and a first tuning circuit, the first radiator comprises a first connection point, a first feeding point and a second connection point; the first feed source is electrically connected with the first feeding point, and the first feed source is used for exciting the first radiator to generate a first resonance mode supporting a first frequency band; the second radiator is adjacent to the first radiator; the second feed source is electrically connected with the second radiator, the second feed source is used for exciting the second radiator to generate a second resonance mode supporting a second frequency band, and the center frequency point of the second frequency band is larger than or equal to two times of the center frequency point of the first frequency band; one end of the first tuning circuit is electrically connected with the first connection point, the other end of the first tuning circuit is electrically connected with the second connection point, the first tuning circuit enables the resonance frequency band of a high-order mode on the first radiator to be different from the first frequency band and the second frequency band, and the influence of the high-order mode on the working frequency band of the antenna assembly is reduced.

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] On electronic devices such as mobile phones, two antennas with different frequency bands are often installed adjacent to each other (for example, a shared aperture design). Since the two antennas share a slot, the electric field strength points at the slot location are strong, so the two antennas will be strongly coupled and produce parasitic branches. If the operating frequency bands of the two antennas are very different, high-order mode parasitism will be generated. For example, high-order modes consume part of the input power, resulting in reduced efficiency of the operating frequency band and less available radiation energy; high-order modes destroy the main mode radiation pattern of the operating frequency band, increase sidelobes or split beams, and degrade the coverage uniformity of the operating frequency band. Based on this, how to reduce the impact of high-order modes has become a technical problem that needs to be solved. Summary of the Invention

[0003] The present application provides an antenna assembly that reduces the influence of higher-order modes and improves antenna performance, 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, the first radiator comprising a first connection point, a first feeding point, and a second connection point;

[0006] a first feed source, the first feed source being electrically connected to the first feed point, and the first feed source being used to excite the first radiator to generate a first resonant mode supporting a first frequency band;

[0007] a second radiator, the second radiator being disposed adjacent to the first radiator;

[0008] a second feed source electrically connected to the second radiator, the second feed source being used to excite the second radiator to generate a second resonant mode supporting a second frequency band, wherein a center frequency of the second frequency band is greater than or equal to twice the center frequency of the first frequency band;

[0009] A first tuning circuit, one end of the first tuning circuit is electrically connected to the first connection point, and the other end of the first tuning circuit is electrically connected to the second connection point, and the first tuning circuit is used to make the resonant frequency band of the higher-order mode on the first radiator different from the frequency bands of the first frequency band and the second frequency band.

[0010] The antenna assembly provided in the present application includes a first radiator, a first feed source, a second radiator, a second feed source, and a first tuning circuit, wherein the first radiator includes a first connection point, a first feed point, and a second connection point; the first feed source is electrically connected to the first feed point, and the first feed source is used to excite the first radiator to generate a first resonant mode supporting a first frequency band; the second radiator is arranged adjacent to the first radiator; the second feed source is electrically connected to the second radiator, and the second feed source is used to excite the second radiator to generate a second resonant mode supporting a second frequency band, and the center frequency of the second frequency band is greater than or equal to 2 times the center frequency of the first frequency band; one end of the first tuning circuit is electrically connected to the first connection point, and the other end of the first tuning circuit is electrically connected to the second connection point, and the first tuning circuit is used to make the resonant frequency band of the higher-order mode on the first radiator different from both the first frequency band and the second frequency band, so as to reduce the influence of the higher-order mode on the operating frequency band of the antenna assembly.

[0011] In a second aspect, the present application provides an antenna assembly, comprising:

[0012] a first radiator, the first radiator comprising a first connection point and a first feeding point;

[0013] a first feed source, the first feed source being electrically connected to the first feed point, and the first feed source being used to excite the first radiator to generate a first resonant mode supporting a first frequency band;

[0014] a second radiator, the second radiator being disposed adjacent to the first radiator, the second radiator comprising a second connection point and a second feeding point,

[0015] a second feed source electrically connected to the second feed point, the second feed source being used to excite the second radiator to generate a second resonant mode supporting a second frequency band, wherein a center frequency of the second frequency band is greater than or equal to twice the center frequency of the first frequency band;

[0016] A first tuning circuit, one end of the first tuning circuit is electrically connected to the first connection point, and the other end of the first tuning circuit is electrically connected to the second connection point, and the first tuning circuit is used to make the resonant frequency band of the higher-order mode on the first radiator different from both the first frequency band and the second frequency band.

[0017] In a third aspect, the present application provides an antenna assembly, comprising:

[0018] a first radiator, the first radiator comprising a first connection point, a first feeding point, and a second connection point;

[0019] a first feed source, the first feed source being electrically connected to the first feed point, and the first feed source being used to excite the first radiator to generate a first resonant mode supporting a first frequency band;

[0020] a second radiator, the second radiator being disposed adjacent to the first radiator, the second radiator comprising a second feeding point,

[0021] a second feed source electrically connected to the second feed point, the second feed source being used to excite the second radiator to generate a second resonant mode supporting a second frequency band, wherein a center frequency of the second frequency band is greater than or equal to twice the center frequency of the first frequency band;

[0022] a first tuning circuit, wherein one end of the first tuning circuit is electrically connected to the first connection point, and the other end of the first tuning circuit is electrically connected to the second connection point;

[0023] a third tuning circuit, one end of the third tuning circuit being electrically connected to the first radiator, the other end of the third tuning circuit being grounded, the third tuning circuit and the first tuning circuit being used to tune the resonant frequency band of the higher-order mode on the first radiator to outside the frequency band of the first frequency band and the second frequency band.

[0024] In a fourth aspect, the present application provides an antenna assembly, comprising:

[0025] a first radiator, the first radiator comprising a first feed point;

[0026] a first feed source, the first feed source being electrically connected to the first feed point, and the first feed source being used to excite the first radiator to generate a first resonant mode supporting a first frequency band;

[0027] a second radiator, the second radiator being disposed adjacent to the first radiator, the second radiator comprising a second feeding point,

[0028] a second feed source electrically connected to the second feed point, the second feed source being used to excite the second radiator to generate a second resonant mode supporting a second frequency band, wherein a center frequency of the second frequency band is greater than or equal to twice the center frequency of the first frequency band; and

[0029] A third tuning circuit, one end of the third tuning circuit is electrically connected to the first radiator, and the other end of the third tuning circuit is grounded, and the third tuning circuit is used to make the resonant frequency band of the higher-order mode on the first radiator different from both the first frequency band and the second frequency band.

[0030] In a fifth aspect, the present application provides an electronic device comprising the antenna assembly as described in the first aspect, the second aspect, the third aspect or the fourth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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.

[0032] Figure 1 This is a schematic structural diagram of an electronic device provided in an embodiment of the present application;

[0033] Figure 2 This is a schematic diagram of the structural decomposition of an electronic device provided in an embodiment of the present application;

[0034] Figure 3 This is a schematic structural diagram of an electronic device with its back cover removed provided by an embodiment of the present application;

[0035] Figure 4 This is a schematic structural diagram of the first antenna assembly provided in Example 1 of the present application;

[0036] Figure 5 This is the topology provided in Example 1 of this application that adjusts the inductance of L2 in parallel. Figure 1 ;

[0037] Figure 6 This is the topology provided in Example 1 of this application that adjusts the inductance of L2 in parallel. Figure 2 ;

[0038] Figure 7 This is the topology provided in Example 1 of this application that adjusts the inductance of L2 in parallel. Figure 3 ;

[0039] Figure 8 This is the topology provided in Example 1 of this application that adjusts the inductance of L2 in parallel. Figure 4 ;

[0040] Figure 9 This is the topology provided in Example 1 of this application that adjusts the inductance of L2 in parallel. Figure 5 ;

[0041] Figure 10 This is the topology provided in Example 1 of this application that adjusts the inductance of L2 in parallel. Figure 6 ;

[0042] Figure 11 This is the topology provided in Example 1 of this application that adjusts the inductance of L2 in parallel. Figure 7 ;

[0043] Figure 12 This is the topology provided in Example 1 of this application that adjusts the inductance of L2 in parallel. Figure 8 ;

[0044] Figure 13 The topology of the first tuning circuit and the first connecting section forming a band-stop structure provided in the first embodiment of the present application is Figure 1 ;

[0045] Figure 14 The topology of the first tuning circuit and the second tuning circuit provided in the first embodiment of the present application is Figure 1 ;

[0046] Figure 15 The topology of the first tuning circuit and the second tuning circuit provided in the first embodiment of the present application is Figure 2 ;

[0047] Figure 16 This is a topological diagram of a band-stop structure formed by the first tuning circuit and the second tuning circuit provided in the first embodiment of the present application;

[0048] Figure 17 The antenna assembly provided in the second embodiment of the present application includes a topology of a first tuning circuit and a third tuning circuit. Figure 1 ;

[0049] Figure 18 The antenna assembly provided in the second embodiment of the present application includes a topology of a first tuning circuit and a third tuning circuit. Figure 2 ;

[0050] Figure 19 The antenna assembly provided in the second embodiment of the present application includes a topology of a first tuning circuit and a third tuning circuit. Figure 3 ;

[0051] Figure 20 The antenna assembly provided in the second embodiment of the present application includes a topology of a first tuning circuit and a third tuning circuit. Figure 4 ;

[0052] Figure 21 The antenna assembly provided in the second embodiment of the present application includes a topology of a first tuning circuit and a third tuning circuit. Figure 5 ;

[0053] Figure 22 The antenna assembly provided in the second embodiment of the present application includes a topology of a first tuning circuit and a third tuning circuit. Figure 6 ;

[0054] Figure 23 The antenna assembly provided in the second embodiment of the present application includes a topology of a first tuning circuit and a third tuning circuit. Figure 7 ;

[0055] Figure 24 The antenna assembly provided in the second embodiment of the present application includes a topology of a first tuning circuit and a third tuning circuit. Figure 8 ;

[0056] Figure 25 The antenna assembly provided in the second embodiment of the present application includes a topology of a first tuning circuit and a third tuning circuit. Figure 9 ;

[0057] Figure 26 The antenna assembly provided in the second embodiment of the present application includes a topology of a first tuning circuit and a third tuning circuit. Figure 10 ;

[0058] Figure 27 The antenna assembly provided in the third embodiment of the present application includes a topology of a first tuning circuit and a third tuning circuit. Figure 10 one;

[0059] Figure 28 The antenna assembly provided in the third embodiment of the present application includes a topology of a first tuning circuit and a third tuning circuit. Figure 10 two;

[0060] Figure 29 The antenna assembly provided in the third embodiment of the present application includes a topology of a first tuning circuit and a third tuning circuit. Figure 10 three;

[0061] Figure 30 The antenna assembly provided in the fourth embodiment of the present application includes the topology of the third tuning circuit. Figure 1 ;

[0062] Figure 31 The antenna assembly provided in the fourth embodiment of the present application includes the topology of the third tuning circuit. Figure 2 ;

[0063] Figure 32 The antenna assembly provided in the fourth embodiment of the present application includes the topology of the third tuning circuit. Figure 3 ;

[0064] Figure 33 The topology of the third tuning circuit and the fourth tuning circuit provided in the fourth embodiment of the present application is Figure 1 ;

[0065] Figure 34 This is the four-antenna shared aperture design topology provided by this application Figure 1 ;

[0066] Figure 35 This is the four-antenna shared aperture design topology provided by this application Figure 2 ;

[0067] Figure 36 This is a common slot four-antenna shared aperture design topology with a first tuning circuit provided in an embodiment of the present application. Figure 1 ;

[0068] Figure 37 This is a common slot four-antenna shared aperture design topology with a first tuning circuit provided in an embodiment of the present application. Figure 2 ;

[0069] Figure 38 This is a topological diagram of two common-slot mouth-to-mouth frame antennas provided in an embodiment of the present application;

[0070] Figure 39 This is an equivalent circuit topology diagram of two common-slot mouth-to-mouth frame antennas provided in an embodiment of the present application;

[0071] Figure 40 This is an equivalent circuit topology diagram of two common-slot port-to-port antennas with a first tuning circuit provided in an embodiment of the present application;

[0072] Figure 41 This is a circuit schematic diagram of regulating L2 in parallel provided by an embodiment of the present application;

[0073] Figure 42 This is a topological diagram for adjusting the inductance of L1 and L2 in parallel, as provided in an embodiment of the present application;

[0074] Figure 43 This is a circuit diagram for adjusting the inductance of L1 and L2 in parallel, provided in an embodiment of the present application;

[0075] Figure 44 This is a structural diagram of the antenna assembly provided in the present application when it is implemented on an electronic device, as provided in an embodiment of the present application;

[0076] Figure 45 This is the efficiency curve of the wifi-5G and N78 antennas when the wifi-2.4G, GPS-L1, wifi-5G, and N78 four antennas share a common aperture design and no M1 matching network.

[0077] Figure 46 This is the topology diagram when M1 is a 1Pf capacitor in the design of four wifi-2.4G, GPS-L1, wifi-5G, and N78 antennas with a common gap and shared aperture provided by the embodiment of the present application;

[0078] Figure 47 This is the efficiency curve of the WiFi-5G and N78 antennas when the four antennas of WiFi-2.4G, GPS-L1, WiFi-5G, and N78 share a common aperture and M1 is a 1Pf capacitor.

[0079] Figure 48 This is the efficiency curve of the WiFi-2.4G and GPS-L1 antennas when the four antennas of WiFi-2.4G, GPS-L1, WiFi-5G, and N78 share a common aperture and M1 is a 1Pf capacitor and disconnected.

[0080] Figure 49This is the efficiency curve of the WiFi-2.4G and GPS-L1 antennas when the four antennas WiFi-2.4G, GPS-L1, WiFi-5G, and N78 share a common aperture and M1 is a different matching network.

[0081] Figure 50 This is the efficiency curve of the WiFi-2.4G and GPS-L1 antennas when the four antennas WiFi-2.4G, GPS-L1, WiFi-5G, and N78 share a common aperture and M1 is a different matching network.

[0082] Figure 51 This is the efficiency curve of the wifi-5G and N78 antennas of this technical solution when M is 0.5Pf when the four antennas of wifi-2.4G, GPS-L1, wifi-5G, and N78 share a common aperture design provided in the embodiment of the application;

[0083] Figure 52 This is the efficiency curve of the wifi-2.4G and GPS-L1 antennas of this technical solution when M is 0.5Pf, when the four antennas wifi-2.4G, GPS-L1, wifi-5G, and N78 are designed with a common break and a shared aperture, as provided in the embodiment of this application. DETAILED DESCRIPTION

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] See also Figure 2 , Figure 2 1 is a partially exploded schematic diagram of an electronic device 1000 provided in an embodiment of the present application. The electronic device 1000 includes an antenna assembly 100. The operating environment of the antenna assembly 100 is described using a mobile phone as an example. The electronic device 1000 includes a display screen 200, a middle frame 300, and a back cover 400, arranged sequentially along the thickness direction. The electronic device 1000 also includes a frame 320. The frame 320 surrounds the display screen 200, the middle frame 300, 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 frame 300, and between the middle frame 300 and the back cover 400 to accommodate components such as the main board 600, the camera module, the receiver module, the battery 700, the sub-board, 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, thereby forming the complete external structure of the electronic device 1000. In this embodiment, the frame 320 and the middle frame 300 are integrally formed, for example, from a single metal plate. The frame 320 and the back cover 400 are separate structures. The above describes the operating environment of the antenna assembly 100 using a mobile phone as an example. However, the antenna assembly 100 of the present application is not limited to the aforementioned operating environment.

[0089] See also Figure 3 , Figure 3This 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).

[0090] 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.

[0091] 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-boards).

[0092] 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 fourth floor edge 540, and a third floor edge 530, 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.

[0093] The specific structure of the antenna assembly 100 provided in the first embodiment is described below with reference to the accompanying drawings.

[0094] See also Figure 3 and Figure 4 The antenna assembly 100 includes a first radiator 11 , a first feed source 31 , a second radiator 12 , a second feed source 32 and a first tuning circuit 41 .

[0095] 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 3 The 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.

[0096] 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.

[0097] 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.

[0098] Optionally, at least a portion of the first radiator 11 is disposed on the top frame 321, and at least a portion of the second radiator 12 is disposed on the top frame 321. Since the top frame 321 faces the overhead space when the handheld electronic device 1000 is in use, this allows the antenna assembly 100 to achieve a higher satellite alignment rate and a higher upper hemisphere energy radiation percentage when supporting the GPS frequency band. This also facilitates connection and alignment with a signal transmitting base station when the antenna assembly 100 supports the Wi-Fi frequency band or the mobile cellular frequency band, thereby improving antenna efficiency.

[0099] This application uses the example of a first radiator 11 located at the corner of the first side frame 322 and the top frame 321. A portion of the first radiator 11 is spaced apart along the first floor edge 510, while another portion of the first radiator 11 is spaced apart along the second floor edge 520. The first radiator 11 extends parallel to the direction of extension of the second floor edge 520.

[0100] The present application does not specifically limit the type of the first radiator 11. The first radiator 11 includes but is not limited to at least one of a monopole antenna, an IFA antenna, a left-handed antenna, a T-type antenna, a parasitic antenna, an IFA+L antenna, and the like.

[0101] In this implementation, please refer to Figure 3 and Figure 4 The first radiator 11 includes a first connection point H1, a first feeding point A1 and a second connection point H2.

[0102] 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.

[0103] For details, please refer to Figure 3 and Figure 4 The 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 31, a small protrusion can be provided on the inner wall of the first radiator 11 at the location of the first feeding point A1, thereby electrically connecting the first feeding source 31 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.

[0104] The first feed source 31 is electrically connected to the first feeding point A1 and is used to excite the first radiator 11 to generate a first resonance mode supporting a first frequency band.

[0105] The first feed source 31 is electrically connected to the first feed point A1 of the first radiator 11. 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 31 is indirectly electrically connected to the first feed point A1 via an RF transmission line, a feed spring, or the like.

[0106] For further optional information, see Figure 3 and Figure 4 The antenna assembly 100 further includes a first matching circuit 21. The first matching circuit 21 is electrically connected between the first feed source 31 and the first feed point A1. The first matching circuit 21 includes at least one of a capacitor and an inductor, and is configured to achieve impedance matching between the first feed source 31 and the first radiator 11.

[0107] The first feed source 31 includes but is not limited to a radio frequency transceiver chip, a radio frequency front-end module, and the like.

[0108] Specifically, the first feed source 31 is used to provide at least a radio frequency signal in a first frequency band and to stimulate the first radiator 11 to form a first resonance mode supporting the first frequency band.

[0109] The present 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 frequency band (less than 1 GHz), the MHB frequency band (1-3 GHz), the UHB frequency band (greater than 3 GHz), the Wi-Fi frequency band, and the GPS frequency band.

[0110] When antenna assembly 100 generates a resonant mode (such as the aforementioned first resonant mode), the antenna (first radiator 11), first matching circuit 21, and reference ground plane 500 can be considered a resonant circuit. When the input signal frequency meets the inherent resonance condition of this resonant circuit, the imaginary part (reactance component) of the antenna input impedance approaches zero, exhibiting a pure resistive characteristic. In this case, signal energy can be efficiently converted into electromagnetic radiation, resulting in high antenna efficiency.

[0111] See also Figure 3 and Figure 4 The second radiator 12 is disposed adjacent to the first radiator 11. Furthermore, the first radiator 11 and the second radiator 12 are electromagnetically coupled, and this coupling mode includes but is not limited to magnetic field-magnetic field coupling, electric field-magnetic field coupling, and electric field-electric field coupling, which will be described in detail below.

[0112] The material and molding form of the second radiator 12 may refer to the material and molding form of the first radiator 11 .

[0113] The present application does not specifically limit the type of the second radiator 12 , and the second radiator 12 includes but is not limited to at least one of a monopole antenna, an IFA antenna, a left-hand antenna, a T-type antenna, a parasitic antenna, an IFA+L antenna, and the like.

[0114] In this implementation, please refer to Figure 3 and Figure 4 , the second radiator 12 includes a second feeding point A2.

[0115] The second feed source 32 is electrically connected to the second feeding point A2 of the second radiator 12. In this embodiment, the second feed source 32 is electrically connected to the second feeding point A2 indirectly via a radio frequency transmission line, a feeding spring, or the like.

[0116] For further optional information, see Figure 3 and Figure 4 The antenna assembly 100 further includes a second matching circuit 22. The second matching circuit 22 is electrically connected between the second feed source 32 and the second feed point A2. The second matching circuit 22 includes at least one of a capacitor and an inductor, and is configured to achieve impedance matching between the second feed source 32 and the second radiator 12.

[0117] The second feed source 32 includes but is not limited to a radio frequency transceiver chip, a radio frequency front-end module, and the like.

[0118] Specifically, the second feed source 32 is at least used to provide a radio frequency signal in the second frequency band.

[0119] The second feed source 32 is used to excite the second radiator 12 to generate a second resonance mode supporting a second frequency band.

[0120] The present 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 UHB band (greater than 3 GHz), the Wi-Fi band, and the GPS band.

[0121] The maximum value of the first frequency band is less than the minimum value of the second frequency band. Furthermore, the center frequency of the second frequency band is greater than or equal to twice the center frequency of the first frequency band. In this case, the resonant frequency of the 1 / 2 wavelength high-order mode generated by the first radiator 11 is located before the second frequency band, which can easily lead to an efficiency pit in the second frequency band.

[0122] For example, the first frequency band is the LB frequency band, and the second frequency band is the MHB frequency band or the WiFi-2.4G frequency band.

[0123] For another example, the first frequency band includes at least one of the MHB frequency band, the GPS frequency band, and the wifi-2.4G frequency band, and the second frequency band includes at least one of the UHB frequency band (such as the N78 frequency band) and the wifi-5G frequency band.

[0124] Optionally, the first frequency band includes the GPS-L1 band, and the second frequency band includes the N78 band. Optionally, the first frequency band includes the GPS-L1 band, and the second frequency band is the Wi-Fi-5G band. Optionally, the first frequency band includes the Wi-Fi-2.4G band, and the second frequency band is the N78 band. Optionally, the first frequency band includes the Wi-Fi-2.4G band, and the second frequency band is the Wi-Fi-5G band. Optionally, the first frequency band includes the GPS-L1 band + the Wi-Fi-2.4G band, and the second frequency band is the Wi-Fi-5G band. Optionally, the first frequency band includes the GPS-L1 band + the Wi-Fi-2.4G band, and the second frequency band is the N78 band. Optionally, the first frequency band includes the GPS-L1 band + the Wi-Fi-2.4G band, and the second frequency band is the N78 band.

[0125] See also Figure 3 and Figure 4 One end of the first tuning circuit 41 is electrically connected to the first connection point H1, and the other end of the first tuning circuit 41 is electrically connected to the second connection point H2.

[0126] In other embodiments, one end of the first tuning circuit 41 may also be electrically connected to the first matching circuit 21 , or electrically connected between the first matching circuit 21 and the first feed source 31 .

[0127] It should be noted that if the first tuning circuit 41 is not set, the length of the first radiator 11 is relatively long. If the resonant frequency band of the higher-order mode formed on the first radiator 11 is located within the operating frequency band of the antenna component 100, it may cause an efficiency pit to be generated within the operating frequency band of the antenna component 100, thereby causing the efficiency of the operating frequency band of the antenna component 100 to be relatively low.

[0128] The present application designs a first tuning circuit 41 to electrically connect the first radiator 11. By tuning the electrical length of the first radiator 11, if the resonant frequency band of the higher-order mode formed on the first radiator 11 is within the operating frequency band of the antenna assembly 100, the resonant frequency band of the higher-order mode formed on the first radiator 11 is moved outside the operating frequency band of the antenna assembly 100, thereby improving the efficiency of the operating frequency band of the antenna assembly 100.

[0129] Optionally, the first tuning circuit 41 includes but is not limited to a capacitor device, which is used to equivalently increase the electrical length of the first radiator 11 so that the resonant frequency band of the high-order mode formed on the first radiator 11 is different from both the first frequency band and the second frequency band.

[0130] For example, if the first tuning circuit 41 is not provided, the resonant frequency band of the higher-order mode formed on the first radiator 11 is located in the second frequency band. The first tuning circuit 41 can be set to tune the resonant frequency band of the higher-order mode formed on the first radiator 11 to a frequency band region between the first frequency band and the second frequency band, or to a region lower than the first frequency band.

[0131] Optionally, the first tuning circuit 41 includes but is not limited to an inductive device, and the capacitive device is used to equivalently shorten the electrical length of the first radiator 11, so that the resonant frequency band of the high-order mode formed on the first radiator 11 is different from the first frequency band and the second frequency band. For example, the resonant frequency band of the high-order mode is moved toward the high frequency side to outside the frequency band of the first frequency band and the second frequency band.

[0132] The frequency bands outside the first frequency band and the second frequency band are frequency bands excluding the first frequency band and the second frequency band. The first frequency band can be a single frequency band or multiple sub-frequency bands. If the multiple sub-frequency bands of the first frequency band are spaced apart from each other, the frequency bands between the multiple sub-frequency bands are also frequency bands outside the first frequency band. The second frequency band can be a single frequency band or multiple sub-frequency bands. If the multiple sub-frequency bands of the second frequency band are spaced apart from each other, the frequency bands between the multiple sub-frequency bands are also frequency bands outside the second frequency band.

[0133] Optionally, the first tuning circuit 41 includes but is not limited to an LC circuit, which is capacitive in the resonant frequency band of the high-order mode, and is used to equivalently shorten the electrical length of the first radiator 11, so that the resonant frequency band of the high-order mode formed on the first radiator 11 is different from the first frequency band and the second frequency band. For example, the resonant frequency band of the high-order mode is moved toward the high frequency side to outside the frequency band of the first frequency band and the second frequency band.

[0134] Optionally, the first tuning circuit 41 includes but is not limited to an LC circuit, which is inductive in the resonant frequency band of the high-order mode, and is used to equivalently shorten the electrical length of the first radiator 11, so that the resonant frequency band of the high-order mode formed on the first radiator 11 is different from the first frequency band and the second frequency band. For example, the resonant frequency band of the high-order mode is moved toward the high frequency side to outside the frequency band of the first frequency band and the second frequency band.

[0135] The first tuning circuit 41 is a parallel matching network of the first radiator 11 .

[0136] The first tuning circuit 41 is used to tune the resonant frequency band of the higher-order mode on the first radiator 11 to a frequency band outside the first frequency band and the second frequency band.

[0137] Generally, on electronic devices such as mobile phones, there are often two antennas with different frequency bands set adjacent to each other (for example, a shared aperture design). Since the two antennas share a slot, the electric field strength points of the two antennas at the slot position will cause strong coupling between the two antennas and generate parasitic branches. If the operating frequency bands of the two antennas are very different, the length of the relatively low-frequency antenna is relatively long, so the relatively low-frequency antenna may produce high-order modes that affect the relatively high-frequency antenna, affecting the efficiency of the relatively high-frequency antenna. The length of the relatively high-frequency antenna is relatively short, and will not produce high-order modes that affect the relatively low-frequency antenna. For example, the high-order modes formed on the first radiator 11 consume part of the input power, resulting in a decrease in the efficiency of the second frequency band and a reduction in the available radiation energy; the high-order modes destroy the main mode radiation pattern of the second frequency band, increase the side lobes or split the beam, and deteriorate the coverage uniformity of the second frequency band.

[0138] Based on the above problems, the present application sets a first tuning circuit 41 in a parallel form on the first radiator 11. The first tuning circuit 41 is used to tune the electrical length of the first radiator 11, so that the resonant frequency band of the higher-order mode on the first radiator 11 is tuned to outside the frequency band of the first frequency band and the second frequency band, thereby reducing the influence of the higher-order mode on the working frequency band of the antenna assembly 100.

[0139] The antenna assembly 100 provided in the first embodiment of the present application includes a first radiator 11, a first feed source 31, a second radiator 12, a second feed source 32, and a first tuning circuit 41. The first radiator 11 includes a first connection point H1, a first feed point A1, and a second connection point H2; the first feed source 31 is electrically connected to the first feed point A1, and the first feed source 31 is used to excite the first radiator 11 to generate a first resonant mode supporting a first frequency band; the second radiator 12 is arranged adjacent to the first radiator 11; the second feed source 32 is electrically connected to the second radiator 12, and the second feed source 32 is used to excite The second radiator 12 is excited to generate a second resonant mode supporting the second frequency band, and the maximum value of the first frequency band is less than the minimum value of the second frequency band; one end of the first tuning circuit 41 is electrically connected to the first connection point H1, and the other end of the first tuning circuit 41 is electrically connected to the second connection point H2. The first tuning circuit 41 is used to make the resonant frequency band of the higher-order mode formed on the first radiator 11 different from the first frequency band and the second frequency band. For example, the resonant frequency band of the higher-order mode on the first radiator 11 is tuned to outside the frequency band of the first frequency band and the second frequency band to reduce the influence of the higher-order mode on the working frequency band of the antenna assembly 100.

[0140] The first frequency band includes a first sub-frequency band and a second sub-frequency band. The maximum value of the first sub-frequency band is less than the minimum value of the second sub-frequency band. For example, the first sub-frequency band includes the GPS-L1 frequency band. The second sub-frequency band includes the WiFi-2.4G frequency band.

[0141] A first high-order resonance mode and a second high-order resonance mode are formed on the first radiator.

[0142] The resonant frequency band of the first higher-order resonant mode is located between the first sub-frequency band and the second sub-frequency band; or, the resonant frequency band of the first higher-order resonant mode is located between the second sub-frequency band and the second frequency band, that is, the resonant frequency band of the first higher-order resonant mode is far away from the second frequency band to reduce the impact on the second frequency band.

[0143] For example, the first sub-frequency band includes the GPS-L1 frequency band. The second sub-frequency band includes wifi-2.4G, and the second frequency band includes the N78 frequency band. In the case where the first tuning circuit 41 is not set, the center frequency point of the resonant frequency band of the first higher-order resonance mode is, for example, 2.9 GHz. The first higher-order resonance mode causes an efficiency pit in the second frequency band or the efficiency pit is closer to the low-frequency side of the second frequency band, resulting in a decrease in the efficiency of the second frequency band. After the first tuning circuit 41 is set, the center frequency point of the resonant frequency band of the first higher-order resonance mode is, for example, 2.2 GHz, that is, located between the first sub-frequency band and the second sub-frequency band, so as to reduce the impact on the second frequency band.

[0144] The resonant frequency band of the second higher-order resonant mode is located between the second sub-frequency band and the second frequency band; or, the minimum value of the resonant frequency band of the second higher-order resonant mode is greater than the maximum value of the second frequency band, that is, the resonant frequency band of the second higher-order resonant mode is far away from the second frequency band to reduce the impact on the second frequency band.

[0145] For example, the first sub-frequency band includes the GPS-L1 frequency band. The second sub-frequency band includes the wifi-2.4G frequency band, and the second frequency band includes the wifi-5G frequency band. In the case where the first tuning circuit 41 is not set, the center frequency point of the resonant frequency band of the second higher-order resonance mode is, for example, 4.8 GHz. The second higher-order resonance mode causes an efficiency pit in the second frequency band or the efficiency pit is closer to the low-frequency side of the second frequency band, resulting in a decrease in the efficiency of the second frequency band. After the first tuning circuit 41 is set, the center frequency point of the resonant frequency band of the second higher-order resonance mode is, for example, 4.0 GHz, that is, the resonant frequency band of the second higher-order resonance mode is far away from the second frequency band to reduce the impact on the second frequency band.

[0146] Further optionally, the second frequency band includes a third sub-band and a fourth sub-band. The resonant frequency band of the first higher-order resonant mode is located between the first sub-band and the second sub-band; or the resonant frequency band of the first higher-order resonant mode is located between the second sub-band and the third sub-band, that is, the resonant frequency band of the first higher-order resonant mode is away from the third sub-band to reduce the impact on the third sub-band.

[0147] The resonant frequency band of the second higher-order resonant mode is located between the second sub-frequency band and the third sub-frequency band; or, the resonant frequency band of the second higher-order resonant mode is located between the third sub-frequency band and the fourth sub-frequency band; or, the minimum value of the resonant frequency band of the second higher-order resonant mode is greater than the maximum value of the fourth sub-frequency band, that is, the resonant frequency band of the second higher-order resonant mode is away from the fourth sub-frequency band to reduce the impact on the fourth sub-frequency band.

[0148] For example, the first sub-frequency band includes the GPS-L1 frequency band. The second sub-frequency band includes the wifi-2.4G frequency band, the third sub-frequency band includes the N78 frequency band, and the fourth sub-frequency band includes the wifi-5G frequency band. In the case where the first tuning circuit 41 is not set, the center frequency point of the resonant frequency band of the first higher-order resonance mode is, for example, 2.9 GHz. The first higher-order resonance mode causes the third sub-frequency band to have an efficiency pit or the efficiency pit is closer to the low-frequency side of the third sub-frequency band, resulting in a decrease in the efficiency of the third sub-frequency band. In the case where the first tuning circuit 41 is not set, the center frequency point of the resonant frequency band of the second higher-order resonance mode is, for example, 4.8 GHz. The second higher-order resonance mode causes the fourth sub-frequency band to have an efficiency pit or the efficiency pit is closer to the low-frequency side of the fourth sub-frequency band, resulting in a decrease in the efficiency of the fourth sub-frequency band.

[0149] After the first tuning circuit 41 is provided, the center frequency of the resonant frequency band of the first higher-order resonant mode is, for example, 2.2 GHz, i.e., located between the first sub-band and the second sub-band, thereby reducing the impact on the third sub-band. Simultaneously, after the first tuning circuit 41 is provided, the center frequency of the resonant frequency band of the second higher-order resonant mode is, for example, 4.0 GHz, i.e., the resonant frequency band of the second higher-order resonant mode is far from the fourth sub-band, thereby reducing the impact on the fourth sub-band.

[0150] In other embodiments, the first frequency band includes the GPS-L1 frequency band. The aforementioned first higher-order resonance mode is generated on the first radiator 11. The second frequency band includes a third sub-band and a fourth sub-band. The third sub-band includes the N78 frequency band, and the fourth sub-band includes the wifi-5G frequency band. In the case where the first tuning circuit 41 is not set, the center frequency point of the resonance frequency band of the first higher-order resonance mode is, for example, 2.9 GHz. The first higher-order resonance mode causes an efficiency pit in the third sub-band or the efficiency pit is closer to the low-frequency side of the third sub-band, resulting in a decrease in the efficiency of the third sub-band. After the first tuning circuit 41 is set, the center frequency point of the resonance frequency band of the first higher-order resonance mode is, for example, 2.2 GHz, that is, located between the first sub-band and the second sub-band, so as to reduce the impact on the third sub-band.

[0151] In other embodiments, the first frequency band is the wifi-2.4G frequency band. The aforementioned first higher-order resonance mode is generated on the first radiator 11. The second frequency band includes a third sub-band and a fourth sub-band. The third sub-band includes the N78 frequency band, and the fourth sub-band includes the wifi-5G frequency band. In the case where the first tuning circuit 41 is not set, the center frequency point of the resonance frequency band of the second higher-order resonance mode is, for example, 4.8 GHz. The second higher-order resonance mode causes an efficiency pit in the fourth sub-band or the efficiency pit is closer to the low-frequency side of the fourth sub-band, resulting in a decrease in the efficiency of the fourth sub-band. After the first tuning circuit 41 is set, the center frequency point of the resonance frequency band of the second higher-order resonance mode is, for example, 4.0 GHz, that is, the resonance frequency band of the second higher-order resonance mode is far away from the fourth sub-band to reduce the impact on the fourth sub-band.

[0152] It is understandable that if a higher-order mode is generated on the second radiator 12 , a tuning circuit may be provided on the second radiator 12 to move the higher-order mode on the second radiator 12 out of the operating frequency band of the antenna assembly 100 .

[0153] The structure of the first radiator 11 is described below with reference to the accompanying drawings.

[0154] In the first optional implementation of the first radiator 11, please refer to Figure 4 and Figure 5 , taking the first radiator 11 as an IFA antenna as an example. The first radiator 11 further includes a first grounding point D1 and a first opening end E1. Figure 5 3 is a schematic diagram showing the antenna assembly 100 being disposed on the first side frame 322 .

[0155] See also Figure 4 The first ground point D1 is electrically connected to the reference ground 500. The first radiator 11, excluding the first ground point D1, is spaced apart from the reference ground 500. The first open end E1 is not connected to the reference ground 500. Optionally, the first ground point D1 and the first open end E1 are the two ends of the first radiator 11, respectively.

[0156] See also Figure 4 The first feeding point A1 is located between the first grounding point D1 and the first opening end E1. The present application does not specifically limit the position of the first feeding point A1.

[0157] The second connection point H2 is located between the first grounding point D1 and the first open end E1. The first connection point H1 is located between the first grounding point D1 or between the first grounding point D1 and the second connection point H2.

[0158] For the optional implementation of the first connection point H1 and the second connection point H2, please refer to Figure 6and Figure 7 The first connection point H1 is located at the first ground point D1, and the second connection point H2 is located between the first connection point H1 and the first feed point A1, or between the first feed point A1 and the first open end E1. The first tuning circuit 41 forms a parallel circuit with the branch between the first connection point H1 and the second connection point H2 to tune the electrical length of the first radiator 11 so that the resonant frequency band of the higher-order mode formed on the first radiator 11 is different from both the first frequency band and the second frequency band. For example, the resonant frequency band of the higher-order mode on the first radiator 11 is tuned to be outside the frequency band of the first frequency band and the second frequency band to reduce the impact of the higher-order mode on the operating frequency band of the antenna assembly 100.

[0159] For the optional implementation of the second first connection point H1 and the second connection point H2, please refer to Figure 8 The first connection point H1 is located between the first ground point D1 and the first feed point A1, and the second connection point H2 is located between the first ground point D1 and the first feed point A1, or between the first feed point A1 and the first open end E1. The first tuning circuit 41 forms a parallel circuit with the branch between the first connection point H1 and the second connection point H2 to tune the electrical length of the first radiator 11 so that the resonant frequency band of the higher-order mode formed on the first radiator 11 is different from both the first frequency band and the second frequency band. For example, the resonant frequency band of the higher-order mode on the first radiator 11 is tuned to be outside the frequency band of the first frequency band and the second frequency band to reduce the impact of the higher-order mode on the operating frequency band of the antenna assembly 100.

[0160] For the third optional implementation of the first connection point H1 and the second connection point H2, please refer to Figure 3 、 Figure 4 and Figure 5 The first connection point H1 is located at the first feed point A1, and the second connection point H2 is located between the first feed point A1 and the first open end E1. The first tuning circuit 41 forms a parallel circuit with the branch between the first connection point H1 and the second connection point H2 to tune the electrical length of the first radiator 11 so that the resonant frequency band of the higher-order mode formed on the first radiator 11 is different from both the first frequency band and the second frequency band. For example, the resonant frequency band of the higher-order mode on the first radiator 11 is tuned to be outside the first frequency band and the second frequency band to reduce the impact of the higher-order mode on the operating frequency band of the antenna assembly 100.

[0161] For an optional implementation of the second first radiator 11, please refer to Figure 9 and Figure 10The first radiator 11 is in the form of an IFA antenna + L parasitic antenna. The first radiator 11 includes a first sub-radiating segment 111 and a second sub-radiating segment 112. The first sub-radiating segment 111 includes a first sub-grounding point D01, a first feeding point A1, and a first sub-opening end E01. The second sub-radiating segment 112 includes a second sub-opening end E02 and a second sub-grounding point D02. A first sub-coupling gap is formed between the first sub-opening end E01 and the second sub-opening end E02. The first sub-radiating segment 111 and the second sub-radiating segment 112 are coupled via the first sub-coupling gap G01. The first sub-radiating segment 111 is a main radiating branch, and the second sub-radiating segment 112 is a parasitic radiating branch.

[0162] The first connection point H1 and the second connection point H2 may be located on both sides of the first sub-coupling gap G01.

[0163] The first connection point H1 is located between the first sub-grounding point D01 or between the first sub-grounding point D01 and the first sub-opening end E01. Furthermore, the first connection point H1 is located between the first sub-grounding point D01 or between the first sub-grounding point D01 and the first feeding point A1, or between the first feeding point A1 and the first sub-opening end E01.

[0164] See also Figure 9 and Figure 10 The second connection point H2 is located between the second sub-opening end E02 and the second sub-grounding point D02 or at the second sub-grounding point D02.

[0165] In the first embodiment of the second radiator 12, please refer to Figure 4 Taking the second radiator 12 as an IFA antenna as an example, the second radiator 12 further includes a second grounding point D2, the aforementioned second feeding point A2, and a second open end E2.

[0166] The second ground point D2 is electrically connected to the reference ground plane 500. The second radiator 12, excluding the second ground point D2, is spaced apart from the reference ground plane 500, and the second open end E2 is disconnected from the reference ground plane 500. Optionally, the second ground point D2 and the second open end E2 are the two ends of the second radiator 12, respectively. The second feed point A2 is located between the second ground point D2 and the second open end E2. The present application does not specifically limit the location of the second feed point A2.

[0167] The combination of the first radiator 11 and the second radiator 12 is described below with reference to the accompanying drawings.

[0168] In the first embodiment of the combination of the first radiator 11 and the second radiator 12, please refer to Figure 4-Figure 8A coupling gap is formed between the open end of the first radiator 11 and the open end of the second radiator 12, that is, a shared aperture antenna is formed between the first radiator 11 and the second radiator 12.

[0169] A coupling gap is formed between the first open end E1 and the second open end E2. The first radiator 11 and the second radiator 12 are coupled via the coupling gap. The first radiator 11 and the second radiator 12 are arranged in sequence.

[0170] In the second embodiment of the combination of the first radiator 11 and the second radiator 12, please refer to Figure 11-12 A coupling gap is formed between the open end of the first radiator 11 and the grounding point of the second radiator 12, and the first radiator 11 and the second radiator 12 are coupled through the electric field-magnetic field.

[0171] A coupling gap is formed between the first open end E1 and the second grounding point D2. The first radiator 11 and the second radiator 12 are coupled via the coupling gap. The first radiator 11 and the second radiator 12 are arranged in sequence.

[0172] In the third embodiment of the combination of the first radiator 11 and the second radiator 12 , a coupling gap is formed between the grounding point of the first radiator 11 and the open end of the second radiator 12 , and the first radiator 11 and the second radiator 12 are coupled via magnetic field-electric field.

[0173] A coupling gap is formed between the first grounding point D1 and the second open end E2. The first radiator 11 and the second radiator 12 are coupled via the coupling gap. The first radiator 11 and the second radiator 12 are arranged in sequence.

[0174] In the fourth embodiment of the combination of the first radiator 11 and the second radiator 12, please refer to Figure 9-10 The grounding point of the first radiator 11 and the grounding point of the second radiator 12 are adjacent to or the same grounding point, and the first radiator 11 and the second radiator 12 are coupled by magnetic field-magnetic field.

[0175] A coupling gap is formed between the first ground point D1 and the second ground point D2. The first radiator 11 and the second radiator 12 are coupled via the coupling gap. The first radiator 11 and the second radiator 12 are arranged in sequence.

[0176] The embodiment of the combination of the first radiator 11 and the second radiator 12 in the present application can be combined with the aforementioned embodiment of the position between the first connection point H1 and the second connection point H2 on the first radiator 11 to form different types of embodiments, all of which fall within the scope of protection of the present application.

[0177] Optional, see Figure 13The first tuning circuit 41 includes at least one first capacitive element. The first capacitive element forms a parallel tuning circuit with the first radiator 11. The first capacitive element is used to effectively increase the electrical length of the first radiator 11, causing the resonant frequency band of the higher-order mode formed on the first radiator 11 to differ from both the first and second frequency bands. For example, the resonant frequency band of the higher-order mode is shifted toward the low-frequency side, outside the first and second frequency bands.

[0178] For example, if the first radiator 11 supports the GPS-L1 band and the Wi-Fi-2.4G band, and the second radiator 12 supports the N78 band and the Wi-Fi-5G band, a 4.8 GHz high-order mode and a 3.4 GHz high-order mode are formed on the first radiator 11. The 4.8 GHz high-order mode creates an efficiency pit within the Wi-Fi-5G band, while the 3.4 GHz high-order mode creates an efficiency pit within the N78 band. This results in relatively low in-band efficiency for the N78 band and the Wi-Fi-5G band.

[0179] The first tuning circuit 41 provided in this embodiment includes a first capacitor device, which can be used to equivalently increase the electrical length of the first radiator 11, move the 3.4 GHz high-order mode on the first radiator 11 to below 3 GHz, and move the efficiency pit formed at 3 GHz out of the N78 frequency band, and move the 4.8 GHz high-order mode on the first radiator 11 to 4.4 GHz, and move the efficiency pit formed at 4.8 GHz out of the wifi-5G frequency band.

[0180] Optional, see Figure 13 A first connection segment 13 is located between the first connection point H1 and the second connection point H2. The first capacitor and the first connection segment 13 form a band-stop circuit for the second frequency band.

[0181] The first connecting section 13 is equivalent to an inductor, which is connected to the first capacitor device in parallel to form a band-stop circuit in the second frequency band, thereby reducing the coupling between the first feed source 31 and the second feed source 32, improving the high-order modes on the first radiator 11, and improving the isolation between the first feed source 31 and the second feed source 32.

[0182] When the first radiator 11 is loaded with the first tuning circuit 41 , the first tuning circuit 41 is equivalent to increasing or decreasing the electrical length of the first radiator 11 , which may cause frequency deviation and efficiency reduction on the first frequency band supported by the first radiator 11 itself.

[0183] Based on the above questions, please refer to Figure 14 and Figure 15The antenna assembly 100 further includes a second tuning circuit 42. The second tuning circuit 42 is electrically connected to the first radiator 11. The second tuning circuit 42 can be connected in parallel with the first radiator 11 or in parallel to ground. The second tuning circuit 42 is configured to tune the equivalent electrical length of the first radiator 11 so that the resonance point of the first radiator 11, after tuning by the first tuning circuit 41 and the second tuning circuit 42, falls within the first frequency band.

[0184] In this embodiment, by setting a first tuning circuit 41 and a second tuning circuit 42 on the first radiator 11, not only can the resonant frequency band of the higher-order mode on the first radiator 11 be moved outside the band of the first frequency band and the second frequency band to improve the efficiency of the second frequency band; it can also keep the first frequency band supported by the first radiator 11 without frequency deviation or with a small frequency deviation, so as to improve the efficiency of the first frequency band and the second frequency band of the antenna assembly 100.

[0185] For example, taking the case where the first radiator 11 supports the GPS-L1 frequency band + the Wi-Fi-2.4G frequency band, and the second radiator 12 supports the N78 frequency band + the Wi-Fi-5G frequency band, providing the first tuning circuit 41 and the second tuning circuit 42 on the first radiator 11 not only shifts the resonant frequency band of the higher-order mode on the first radiator 11 out of the band of the N78 frequency band + the Wi-Fi-5G frequency band, thereby improving the efficiency of the N78 frequency band + the Wi-Fi-5G frequency band, but also ensures that the GPS-L1 frequency band + the Wi-Fi-2.4G frequency band supported by the first radiator 11 maintains no frequency deviation or a small frequency deviation, thereby improving the efficiency of the GPS-L1 frequency band + the Wi-Fi-2.4G frequency band + the N78 frequency band + the Wi-Fi-5G frequency band of the antenna assembly 100, thereby achieving a balanced improvement in the efficiency of the GPS-L1 frequency band + the Wi-Fi-2.4G frequency band + the N78 frequency band + the Wi-Fi-5G frequency band.

[0186] Optional, see Figure 14 , both ends of the second tuning circuit 42 are electrically connected to the first radiator 11; or, refer to Figure 15 , one end of the second tuning circuit 42 is electrically connected to the first radiator 11, and the other end of the second tuning circuit 42 is grounded; or, one end of the second tuning circuit 42 is electrically connected to the first radiator 11, and the other end of the second tuning circuit 42 is electrically connected to the second radiator 12.

[0187] Taking the example where one end of the second tuning circuit 42 is electrically connected to the first radiator 11 and the other end of the second tuning circuit 42 is grounded, one end of the second tuning circuit 42 is electrically connected to the first connection point H1 and the other end of the second tuning circuit 42 is grounded; or one end of the second tuning circuit 42 is electrically connected to the second connection point H2 and the other end of the second tuning circuit 42 is grounded.

[0188] For example, both ends of the second tuning circuit 42 are electrically connected to the first radiator 11. Furthermore, one end of the second tuning circuit 42 is electrically connected to the first connection point H1, and the other end of the second tuning circuit 42 is electrically connected to the second connection point H2.

[0189] For further optional information, see Figure 16 The first tuning circuit 41 and the second tuning circuit 42 form an LC circuit. The LC circuit is inductive with respect to the first frequency band, forming a band-stop circuit in the first frequency band. The LC circuit is capacitive with respect to the second frequency band. The resonant frequency of the LC circuit is greater than the maximum value of the first frequency band and less than the minimum value of the second frequency band, making the LC circuit capacitive with respect to the second frequency band. This in turn tunes the electrical length of the first radiator 11 to increase, causing the resonant frequency band of the higher-order mode formed on the first radiator 11 to differ from both the first and second frequency bands. For example, the resonant frequency band of the higher-order mode is shifted toward the low-frequency side, outside the frequency bands of the first and second frequency bands.

[0190] The resonant frequency of the LC circuit is greater than the maximum value of the first frequency band and less than the minimum value of the second frequency band, so that the LC circuit is inductive with respect to the first frequency band, thereby shortening the electrical length of the first radiator 11 by tuning, so that the resonant point of the first radiator 11 after tuning by the first tuning circuit 41 and the second tuning circuit 42 is located within the frequency band of the first frequency band.

[0191] Optionally, the second tuning circuit 42 further includes at least one first inductor device.

[0192] See also Figure 16 When the first tuning circuit 41 is a first capacitor, the second tuning circuit 42 is a first inductor. The first capacitor is used to tune the first radiator 11 to increase its electrical length, causing the resonant frequency band of the higher-order mode formed on the first radiator 11 to differ from both the first and second frequency bands. For example, the resonant frequency band of the higher-order mode is shifted toward the low-frequency side, outside the first and second frequency bands. The first inductor is used to tune the first radiator 11 to decrease its electrical length, causing the resonance point of the first radiator 11, after tuning by the first capacitor and the first inductor, to fall within the first frequency band.

[0193] This application does not make any specific restrictions on the capacitance value of the first capacitor device and the inductance value of the first inductor device. The first tuning circuit 41 and the second tuning circuit 42 form an LC circuit, and the resonant frequency of the LC circuit is greater than the maximum value of the first frequency band and less than the minimum value of the second frequency band.

[0194] Optional, see Figure 17 The antenna assembly 100 further includes a plurality of first sub-tuning circuits 411 . The plurality of first sub-tuning circuits 411 are electrically connected to the first tuning circuit 41 , and the first sub-tuning circuits 411 are used to assist in tuning the electrical length of the first radiator 11 .

[0195] Optional, see Figure 17 The antenna assembly 100 further includes a plurality of second sub-tuning circuits 412 . The plurality of second sub-tuning circuits 412 are electrically connected to the first tuning circuit 41 , and the second sub-tuning circuits 412 are used to assist in tuning the electrical length of the first radiator 11 .

[0196] For example, see Figure 17 There are two first sub-tuning circuits 411, one of which is electrically connected between the first connection point H1 and one end of the first tuning circuit 41. The other first sub-tuning circuit 411 is electrically connected between the second connection point H2 and the other end of the first tuning circuit 41. There are two second sub-tuning circuits 412, one of which is electrically connected between one end of the first tuning circuit 41 and the reference ground 500. The other second sub-tuning circuit 412 is electrically connected between the other end of the first tuning circuit 41 and the reference ground 500.

[0197] The specific structure of the antenna assembly 100 provided in the second embodiment is described below with reference to the accompanying drawings. The antenna assembly 100 provided in the second embodiment has the same general structure as the antenna assembly 100 provided in the first embodiment, with the main difference being that in the antenna assembly 100 provided in the second embodiment, the second connection point H2 is located on the second radiator 12. The first tuning circuit 41 forms a parallel matching network for the first connection section 13 between the first connection point H1 and the second connection point H2. At this time, the first tuning circuit 41 is still used to tune the electrical length of the first radiator 11 so that the resonant frequency band of the higher-order mode formed on the first radiator 11 is different from both the first frequency band and the second frequency band. For example, the resonant frequency band of the higher-order mode on the first radiator 11 is tuned to outside the frequency band of the first frequency band and the second frequency band to reduce the impact of the higher-order mode on the operating frequency band of the antenna assembly 100.

[0198] For details, please refer to Figures 18-23 The antenna assembly 100 includes a first radiator 11 , a first feed source 31 , a second radiator 12 , a second feed source 32 and a first tuning circuit 41 .

[0199] See also Figures 18-23 , the first radiator 11 includes a first connection point H1 and a first feeding point A1.

[0200] The first feed source 31 is electrically connected to the first feed point A1 and is used to excite the first radiator 11 to generate a first resonance mode supporting a first frequency band.

[0201] See also Figures 18-23 The second radiator 12 is disposed adjacent to the first radiator 11. The second radiator 12 includes a second connection point H2 and a second feeding point A2.

[0202] The second feed source 32 is electrically connected to the second feed point A2. The second feed source 32 is used to excite the second radiator 12 to generate a second resonant mode supporting a second frequency band. The maximum value of the first frequency band is less than the minimum value of the second frequency band. Furthermore, the center frequency of the second frequency band is greater than or equal to twice the center frequency of the first frequency band. In this case, the resonant frequency of the 1 / 2 wavelength high-order mode generated on the first radiator 11 is located before the second frequency band, which easily leads to an efficiency pit in the second frequency band.

[0203] One end of the first tuning circuit 41 is electrically connected to the first connection point H1, and the other end of the first tuning circuit 41 is electrically connected to the second connection point H2. The first tuning circuit 41 is used to make the resonant frequency band of the higher-order mode formed on the first radiator 11 different from both the first frequency band and the second frequency band. For example, the resonant frequency band of the higher-order mode on the first radiator 11 is tuned to a frequency band outside the first frequency band and the second frequency band.

[0204] The antenna assembly 100 provided in the second embodiment of the present application includes a first radiator 11, a first feed source 31, a second radiator 12, a second feed source 32, and a first tuning circuit 41. The first radiator 11 includes a first connection point H1 and a first feeding point A1; the first feed source 31 is electrically connected to the first feeding point A1, and the first feed source 31 is used to excite the first radiator 11 to generate a first resonant mode supporting a first frequency band; the second radiator 12 is arranged adjacent to the first radiator 11; the second radiator 12 includes a second feeding point A2 and a second connection point H2, and the second feed source 32 is electrically connected to the second feeding point A1 of the second radiator 12. Point A2, the second feed source 32 is used to excite the second radiator 12 to generate a second resonant mode supporting the second frequency band, and the maximum value of the first frequency band is less than the minimum value of the second frequency band; one end of the first tuning circuit 41 is electrically connected to the first connection point H1, and the other end of the first tuning circuit 41 is electrically connected to the second connection point H2. The first tuning circuit 41 is used to make the resonant frequency band of the higher-order mode formed on the first radiator 11 different from the first frequency band and the second frequency band. For example, the resonant frequency band of the higher-order mode on the first radiator 11 is tuned to outside the frequency band of the first frequency band and the second frequency band to reduce the influence of the higher-order mode on the working frequency band of the antenna assembly 100.

[0205] It is understood that if a higher-order mode is generated on the second radiator 12, the first tuning circuit 41 can also move the higher-order mode on the second radiator 12 out of the operating frequency band of the antenna assembly 100 by tuning the electrical length of the second radiator 12. Therefore, the first tuning circuit 41 in this embodiment can not only tune the higher-order modes on the first radiator 11, but also be used to tune the higher-order modes on the second radiator 12.

[0206] The structure of the first radiator 11 is described below with reference to the accompanying drawings. The antenna form of the first radiator 11 can be the same as that described in the first embodiment.

[0207] In a first optional implementation of the first radiator 11, Figures 18-23 Taking the first radiator 11 as an IFA antenna as an example, the first radiator 11 also includes a first ground point D1 and a first open end E1. The first feeding point A1 is located between the first ground point D1 and the first open end E1. The first connection point H1 is located at the first ground point D1 or between the first ground point D1 and the first open end E1.

[0208] The position of the first connection point H1 in the second embodiment may refer to the position of the first connection point H1 in the first embodiment. The difference from the first embodiment is that there is no second connection point H2 on the first radiator 11 in the second embodiment.

[0209] The antenna form of the second radiator 12 may be the same as that described in the first embodiment.

[0210] See also Figures 18-23 Taking the first radiator 11 as an IFA antenna and the second radiator 12 as an IFA antenna as an example, the second radiator 12 further includes a second grounding point D2 and a second open end E2. The second feeding point A2 is located between the second grounding point D2 and the second open end E2. The second connection point H2 is located at the second grounding point D2 or between the second grounding point D2 and the second open end E2. Specifically, the second connection point H2 may be located between the second open end E2 and the second feeding point A2, or at the second feeding point A2, or between the second feeding point A2 and the second grounding point D2, or at the second grounding point D2.

[0211] The combination of the first radiator 11 and the second radiator 12 is described below with reference to the accompanying drawings.

[0212] In the first embodiment of the combination of the first radiator 11 and the second radiator 12, please refer to Figures 19-21 A coupling gap is formed between the open end of the first radiator 11 and the open end of the second radiator 12, that is, a shared aperture antenna is formed between the first radiator 11 and the second radiator 12.

[0213] A coupling gap is formed between the first open end E1 and the second open end E2. The first radiator 11 and the second radiator 12 are coupled via the coupling gap. The first radiator 11 and the second radiator 12 are arranged in sequence.

[0214] In the second embodiment of the combination of the first radiator 11 and the second radiator 12, please refer to Figure 24-26 A coupling gap is formed between the open end of the first radiator 11 and the grounding point of the second radiator 12, and the first radiator 11 and the second radiator 12 are coupled through the electric field-magnetic field.

[0215] A coupling gap is formed between the first open end E1 and the second grounding point D2. The first radiator 11 and the second radiator 12 are coupled via the coupling gap. The first radiator 11 and the second radiator 12 are arranged in sequence.

[0216] In the third embodiment of the combination of the first radiator 11 and the second radiator 12 , a coupling gap is formed between the grounding point of the first radiator 11 and the open end of the second radiator 12 , and the first radiator 11 and the second radiator 12 are coupled via magnetic field-electric field.

[0217] A coupling gap is formed between the first grounding point D1 and the second open end E2. The first radiator 11 and the second radiator 12 are coupled via the coupling gap. The first radiator 11 and the second radiator 12 are arranged in sequence.

[0218] In the fourth embodiment of the combination of the first radiator 11 and the second radiator 12, please refer to Figure 22-23 The grounding point of the first radiator 11 and the grounding point of the second radiator 12 are adjacent to or the same grounding point, and the first radiator 11 and the second radiator 12 are coupled by magnetic field-magnetic field.

[0219] A coupling gap is formed between the first ground point D1 and the second ground point D2. The first radiator 11 and the second radiator 12 are coupled via the coupling gap. The first radiator 11 and the second radiator 12 are arranged in sequence.

[0220] The embodiment of the combination of the first radiator 11 and the second radiator 12 in the present application can be combined with the aforementioned embodiment of the position between the first connection point H1 and the second connection point H2 on the first radiator 11 to form different types of embodiments, all of which fall within the scope of protection of the present application.

[0221] Optional, see Figure 13 The first tuning circuit 41 includes at least one first capacitor. This embodiment can refer to the relevant content of the first embodiment.

[0222] Optional, see Figure 13 The first tuning circuit 41 and the first connecting section 13 are located between the first connecting point H1 and the second connecting point H2. The first capacitor and the first connecting section 13 form a band-stop circuit for the second frequency band. For this embodiment, reference may be made to the relevant content of Example 1.

[0223] Optional, see Figure 14 and Figure 15 The antenna assembly 100 further includes the first tuning circuit 41 and the second tuning circuit 42. The second tuning circuit 42 is electrically connected to the first radiator 11. The second tuning circuit 42 is configured to tune the equivalent electrical length of the first radiator 11 so that the resonance point of the first radiator 11, after being tuned by the first tuning circuit 41 and the second tuning circuit 42, is within the first frequency band. For this embodiment, reference may be made to the relevant details of Example 1.

[0224] Optional, see Figure 16 The first tuning circuit 41 and the second tuning circuit 42 in the embodiment form an LC circuit. The LC circuit is inductive for the first frequency band. The LC circuit is capacitive for the second frequency band. For this embodiment, reference may be made to the relevant content of Example 1.

[0225] Optionally, the second tuning circuit 42 further includes at least one first inductor. For this implementation, reference may be made to the relevant content in the first embodiment.

[0226] Optionally, the first tuning circuit 41 includes multiple first sub-tuning circuits 411. The multiple first sub-tuning circuits 411 are electrically connected in sequence. The second tuning circuit 42 includes multiple second sub-tuning circuits 412. The second sub-tuning circuits 412 are electrically connected in sequence or all are ground branches. For this implementation, reference may be made to the relevant content of Example 1.

[0227] Optionally, both ends of the second tuning circuit 42 are electrically connected to the first radiator 11; or, one end of the second tuning circuit 42 is electrically connected to the first radiator 11. The other end of the second tuning circuit 42 is grounded; or, one end of the second tuning circuit 42 is electrically connected to the first radiator 11. The other end of the second tuning circuit 42 is electrically connected to the second radiator 12. For this embodiment, reference may be made to the relevant content of Example 1.

[0228] The specific structure of the antenna assembly 100 provided in Example 3 is described below with reference to the accompanying drawings. Example 3 is substantially the same as the antenna assembly 100 of Example 1, with the primary difference being that this embodiment not only employs a first tuning circuit 41 in parallel, but also employs a third tuning circuit in grounded parallel to tune the electrical length of the first radiator 11, thereby causing the resonant frequency band of the higher-order mode formed on the first radiator 11 to differ from both the first and second frequency bands. For example, this allows the higher-order mode on the first radiator 11 to be tuned outside the operating frequency band of the antenna assembly 100.

[0229] Of course, on the basis of the second embodiment, it is also possible to use both the first tuning circuit 41 in parallel form and the third tuning circuit in grounded parallel form to tune the electrical length of the first radiator 11, so that the resonant frequency band of the high-order mode formed on the first radiator 11 is different from both the first frequency band and the second frequency band. For example, the high-order mode on the first radiator 11 can be tuned to outside the operating frequency band of the antenna assembly 100.

[0230] For details, please refer to Figure 27-Figure 29 The antenna assembly 100 includes a first radiator 11 , a first feed source 31 , a second radiator 12 , a second feed source 32 , a first tuning circuit 41 , and a third tuning circuit 43 .

[0231] The first radiator 11 includes a first connection point H1 , a first feeding point A1 , and a second connection point H2 .

[0232] The first feed source 31 is electrically connected to the first feed point A1 and is used to excite the first radiator 11 to generate a first resonance mode supporting a first frequency band.

[0233] The second radiator 12 is disposed adjacent to the first radiator 11. The second radiator 12 includes a second feeding point A2.

[0234] The second feed source 32 is electrically connected to the second feed point A2. The second feed source 32 is used to excite the second radiator 12 to generate a second resonant mode supporting a second frequency band. The maximum value of the first frequency band is less than the minimum value of the second frequency band. Furthermore, the center frequency of the second frequency band is greater than or equal to twice the center frequency of the first frequency band. In this case, the resonant frequency of the 1 / 2 wavelength high-order mode generated on the first radiator 11 is located before the second frequency band, which easily leads to an efficiency pit in the second frequency band.

[0235] One end of the first tuning circuit 41 is electrically connected to the first connection point H1 , and the other end of the first tuning circuit 41 is electrically connected to the second connection point H2 .

[0236] The component values ​​of the first tuning circuit 41 in this embodiment are different from those of the first tuning circuit 41 in embodiment 1. For example, the component values ​​of the first tuning circuit 41 in this embodiment are smaller than those of the first tuning circuit 41 in embodiment 1.

[0237] For the above parts, please refer to the relevant description in Example 1.

[0238] See also Figure 27-Figure 29 One end of the third tuning circuit 43 is electrically connected to the first radiator 11, and the other end of the third tuning circuit 43 is grounded. The third tuning circuit 43 and the first tuning circuit 41 are used to tune the resonant frequency band of the higher-order mode formed on the first radiator 11 to be different from both the first frequency band and the second frequency band. For example, the resonant frequency band of the higher-order mode on the first radiator 11 is tuned to be outside the frequency band of the first frequency band and the second frequency band.

[0239] The third tuning circuit 43 is a parallel ground tuning circuit of the first radiator 11 .

[0240] Optionally, the third tuning circuit 43 includes but is not limited to a capacitor device, which is used to equivalently increase the electrical length of the first radiator 11, so that the resonant frequency band of the higher-order mode formed on the first radiator 11 is different from the first frequency band and the second frequency band. For example, the resonant frequency band of the higher-order mode is moved toward the low-frequency side to outside the frequency band of the first frequency band and the second frequency band.

[0241] Optionally, the third tuning circuit 43 includes but is not limited to an inductive device, and the capacitive device is used to equivalently shorten the electrical length of the first radiator 11, so that the resonant frequency band of the higher-order mode formed on the first radiator 11 is different from the first frequency band and the second frequency band. For example, the resonant frequency band of the higher-order mode is moved toward the high-frequency side to outside the frequency band of the first frequency band and the second frequency band.

[0242] Optionally, the third tuning circuit 43 includes but is not limited to an LC circuit, which is capacitive in the resonant frequency band of the high-order mode, and is used to equivalently shorten the electrical length of the first radiator 11, so that the resonant frequency band of the high-order mode formed on the first radiator 11 is different from the first frequency band and the second frequency band. For example, the resonant frequency band of the high-order mode is moved toward the high frequency side to outside the frequency band of the first frequency band and the second frequency band.

[0243] Optionally, the third tuning circuit 43 includes but is not limited to an LC circuit, which is inductive in the resonant frequency band of the high-order mode, and is used to equivalently shorten the electrical length of the first radiator 11, so that the resonant frequency band of the high-order mode formed on the first radiator 11 is different from the first frequency band and the second frequency band. For example, the resonant frequency band of the high-order mode is moved toward the high frequency side to outside the frequency band of the first frequency band and the second frequency band.

[0244] For example, the first tuning circuit 41 includes a first capacitive element, and the third tuning circuit 43 includes a second capacitive element. The second capacitive element and the first capacitive element together increase the electrical length of the first radiator 11, causing the resonant frequency band of the higher-order mode formed on the first radiator 11 to be different from both the first and second frequency bands. For example, the resonant frequency band of the higher-order mode is shifted toward the low-frequency side, outside the first and second frequency bands.

[0245] The antenna assembly 100 provided in the third embodiment of the present application includes a first radiator 11, a first feed source 31, a second radiator 12, a second feed source 32, and a first tuning circuit 41. The first radiator 11 includes a first connection point H1, a first feed point A1 and a second connection point H2; the first feed source 31 is electrically connected to the first feed point A1, and the first feed source 31 is used to excite the first radiator 11 to generate a first resonance mode supporting a first frequency band; the second radiator 12 is arranged adjacent to the first radiator 11; the second feed source 32 is electrically connected to the second radiator 12, and the second feed source 32 is used to excite the second radiator 12 to generate a second resonance mode supporting a second frequency band, and the maximum value of the first frequency band is less than the minimum value of the second frequency band; one end of the first tuning circuit 41 is electrically connected to the first connection point H1, and the other end of the first tuning circuit 41 is electrically connected to the second connection point H2; one end of the third tuning circuit 43 is electrically connected to the first radiator 11, and the other end of the third tuning circuit 43 is grounded. The third tuning circuit 43 and the first tuning circuit 41 are used to make the resonant frequency band of the higher-order mode formed on the first radiator 11 different from the first frequency band and the second frequency band. For example, the resonant frequency band of the higher-order mode on the first radiator 11 is tuned to outside the frequency band of the first frequency band and the second frequency band.

[0246] Optional, see Figure 27 The first radiator 11 further includes a first grounding point D1 and a first open end E1. The first feeding point A1 is located between the first grounding point D1 and the first open end E1. The second connection point H2 is located between the first grounding point D1 and the first open end E1. The first connection point H1 is located at the first grounding point D1 or between the first grounding point D1 and the second connection point H2. For this embodiment, reference may be made to the relevant content of Example 1.

[0247] Optional, see Figure 28-Figure 29 The first radiator 11 includes a first sub-radiating segment 111 and a second sub-radiating segment 112. The first sub-radiating segment 111 includes a first sub-grounding point D01, a first feeding point A1, and a first sub-opening end E01. The second sub-radiating segment 112 includes a second sub-opening end E02 and a second sub-grounding point D02. A first sub-coupling gap G01 is formed between the first sub-opening end E01 and the second sub-opening end E02.

[0248] The first connection point H1 is located between the first sub-grounding point D01 or between the first sub-grounding point D01 and the first sub-opening end E01. The second connection point H2 is located between the second sub-opening end E02 and the second sub-grounding point D02 or at the second sub-grounding point D02. This embodiment can refer to the relevant content of Example 1.

[0249] Optional, see Figure 13 The first tuning circuit 41 includes at least one first capacitor. This embodiment can refer to the relevant content of the first embodiment.

[0250] Optional, see Figure 13 In the first tuning circuit 41, the first connection point H1 and the second connection point H2 are connected to a first connection segment 13. The first capacitor and the first connection segment 13 form a band-stop circuit for the second frequency band. For this embodiment, reference may be made to the relevant contents of Example 1.

[0251] Optional, see Figure 14 and Figure 15 The antenna assembly 100 further includes the first tuning circuit 41 and the second tuning circuit 42. The second tuning circuit 42 is electrically connected to the first radiator 11. The second tuning circuit 42 is configured to tune the equivalent electrical length of the first radiator 11 so that the resonance point of the first radiator 11, after being tuned by the first tuning circuit 41 and the second tuning circuit 42, is within the first frequency band. For this embodiment, reference may be made to the relevant details of Example 1.

[0252] Optional, see Figure 16 The first tuning circuit 41 and the second tuning circuit 42 in the embodiment form an LC circuit. The LC circuit is inductive for the first frequency band. The LC circuit is capacitive for the second frequency band. For this embodiment, reference may be made to the relevant content of Example 1.

[0253] Optionally, the second tuning circuit 42 further includes at least one first inductor. For this implementation, reference may be made to the relevant content in the first embodiment.

[0254] Optionally, the first tuning circuit 41 includes multiple first sub-tuning circuits 411. The multiple first sub-tuning circuits 411 are electrically connected in sequence. The second tuning circuit 42 includes multiple second sub-tuning circuits 412. The second sub-tuning circuits 412 are electrically connected in sequence or all are ground branches. For this implementation, reference may be made to the relevant content of Example 1.

[0255] Optionally, both ends of the second tuning circuit 42 are electrically connected to the first radiator 11. Alternatively, one end of the second tuning circuit 42 is electrically connected to the first radiator 11, and the other end of the second tuning circuit 42 is grounded. Alternatively, one end of the second tuning circuit 42 is electrically connected to the first radiator 11, and the other end of the second tuning circuit 42 is electrically connected to the second radiator 12. For this embodiment, reference may be made to the relevant content of Example 1.

[0256] Optionally, a coupling gap is formed between the open end of the first radiator 11 and the open end of the second radiator 12. Alternatively, a coupling gap is formed between the open end of the first radiator 11 and the grounding point of the second radiator 12; alternatively, a coupling gap is formed between the grounding point of the first radiator 11 and the open end of the second radiator 12; alternatively, the grounding point of the first radiator 11 and the grounding point of the second radiator 12 are adjacent to or the same grounding point. For details regarding this embodiment, please refer to the relevant content of Example 1.

[0257] The specific structure of the antenna assembly 100 provided in the fourth embodiment is described below with reference to the accompanying drawings. The antenna assembly 100 provided in this embodiment is similar to the antenna assembly 100 provided in the third embodiment, and the main difference between the antenna assembly 100 provided in the third embodiment is that this embodiment does not have the first tuning circuit 41. The third tuning circuit 43 can independently tune the electrical length of the first radiator 11 to increase, so that the resonant frequency band of the high-order mode formed on the first radiator 11 is different from both the first frequency band and the second frequency band. For example, the resonant frequency band of the high-order mode is shifted toward the low frequency side and outside the frequency band of the first frequency band and the second frequency band.

[0258] The component values ​​of the third tuning circuit 43 in this embodiment are greater than those of the third tuning circuit 43 in the third embodiment.

[0259] For details, please refer to Figure 30 and Figure 31 The antenna assembly 100 includes a first radiator 11 , a first feed source 31 , a second radiator 12 , a second feed source 32 and a third tuning circuit 43 .

[0260] The first radiator 11 includes a first feeding point A1.

[0261] The first feed source 31 is electrically connected to the first feed point A1 and is used to excite the first radiator 11 to generate a first resonance mode supporting a first frequency band.

[0262] The second radiator 12 is disposed adjacent to the first radiator 11. The second radiator 12 includes a second feeding point A2.

[0263] The second feed source 32 is electrically connected to the second feed point A2. The second feed source 32 is used to excite the second radiator 12 to generate a second resonant mode supporting a second frequency band. The maximum value of the first frequency band is less than the minimum value of the second frequency band. Furthermore, the center frequency of the second frequency band is greater than or equal to twice the center frequency of the first frequency band. In this case, the resonant frequency of the 1 / 2 wavelength high-order mode generated on the first radiator 11 is located before the second frequency band, which easily leads to an efficiency pit in the second frequency band.

[0264] For the above part, please refer to the relevant description in the aforementioned embodiment 1.

[0265] One end of the third tuning circuit 43 is electrically connected to the first radiator 11, and the other end of the third tuning circuit 43 is grounded. The third tuning circuit 43 is used to tune the resonant frequency band of the higher-order mode formed on the first radiator 11 to be different from both the first frequency band and the second frequency band. For example, the resonant frequency band of the higher-order mode on the first radiator 11 is tuned to be outside the frequency band of the first frequency band and the second frequency band.

[0266] The third tuning circuit 43 is a parallel ground tuning circuit of the first radiator 11 .

[0267] Optionally, the third tuning circuit 43 includes but is not limited to a capacitor device, which is used to equivalently increase the electrical length of the first radiator 11, so that the resonant frequency band of the higher-order mode formed on the first radiator 11 is different from the first frequency band and the second frequency band. For example, the resonant frequency band of the higher-order mode is moved toward the low-frequency side to outside the frequency band of the first frequency band and the second frequency band.

[0268] Optionally, the third tuning circuit 43 includes but is not limited to an inductor device, and the capacitor device is used to equivalently shorten the electrical length of the first radiator 11, moving the resonant frequency band of the higher-order mode toward the high-frequency side outside the frequency band of the first frequency band and the second frequency band.

[0269] Optionally, the third tuning circuit 43 includes but is not limited to an LC circuit, which is capacitive in the resonant frequency band of the high-order mode, and is used to equivalently shorten the electrical length of the first radiator 11, so that the resonant frequency band of the high-order mode formed on the first radiator 11 is different from the first frequency band and the second frequency band. For example, the resonant frequency band of the high-order mode is moved toward the high frequency side to outside the frequency band of the first frequency band and the second frequency band.

[0270] Optionally, the third tuning circuit 43 includes but is not limited to an LC circuit, which is inductive in the resonant frequency band of the high-order mode, and is used to equivalently shorten the electrical length of the first radiator 11, so that the resonant frequency band of the high-order mode formed on the first radiator 11 is different from the first frequency band and the second frequency band. For example, the resonant frequency band of the high-order mode is moved toward the high frequency side to outside the frequency band of the first frequency band and the second frequency band.

[0271] Optionally, the third tuning circuit 43 includes a second capacitive element. The second capacitive element is used to tune the electrical length of the first radiator 11 to increase, so that the resonant frequency band of the higher-order mode formed on the first radiator 11 is different from both the first frequency band and the second frequency band. For example, the resonant frequency band of the higher-order mode is shifted toward the low-frequency side and outside the frequency band of the first frequency band and the second frequency band.

[0272] Optional, see Figure 32 The antenna assembly 100 further includes a fourth tuning circuit 44. The fourth tuning circuit 44 is electrically connected to the first radiator 11. The fourth tuning circuit 44 is configured to tune the equivalent electrical length of the first radiator 11 so that the resonance point of the first radiator 11, after being tuned by the third tuning circuit 43 and the fourth tuning circuit 44, is within the frequency band of the first frequency band.

[0273] The fourth tuning circuit 44 provided in this embodiment may refer to the relevant description of the second tuning circuit 42 provided in the first embodiment.

[0274] In this embodiment, by arranging a third tuning circuit 43 and a fourth tuning circuit 44 on the first radiator 11, not only can the resonant frequency band of the higher-order mode on the first radiator 11 be moved outside the band of the first frequency band and the second frequency band to improve the efficiency of the second frequency band; it can also keep the first frequency band supported by the first radiator 11 without frequency deviation or with a small frequency deviation, so as to improve the efficiency of the first frequency band and the second frequency band of the antenna assembly 100.

[0275] For example, taking the case where the first radiator 11 supports the GPS-L1 frequency band + the Wi-Fi-2.4 GHz frequency band, and the second radiator 12 supports the N78 frequency band + the Wi-Fi-5 GHz frequency band, providing the third tuning circuit 43 and the fourth tuning circuit 44 on the first radiator 11 not only shifts the resonant frequency band of the higher-order mode on the first radiator 11 out of the band of the N78 frequency band + the Wi-Fi-5 GHz frequency band, thereby improving the efficiency of the N78 frequency band + the Wi-Fi-5 GHz frequency band, but also ensures that the GPS-L1 frequency band + the Wi-Fi-2.4 GHz frequency band supported by the first radiator 11 maintains a low or no frequency deviation, thereby improving the efficiency of the GPS-L1 frequency band + the Wi-Fi-2.4 GHz frequency band + the N78 frequency band + the Wi-Fi-5 GHz frequency band of the antenna assembly 100, thereby achieving a balanced improvement in the efficiency of the GPS-L1 frequency band + the Wi-Fi-2.4 GHz frequency band + the N78 frequency band + the Wi-Fi-5 GHz frequency band.

[0276] Optionally, one end of the fourth tuning circuit 44 is electrically connected to the first radiator 11, and the other end of the fourth tuning circuit 44 is grounded. Furthermore, one end of the fourth tuning circuit 44 is electrically connected to the first connection point H1, and the other end of the fourth tuning circuit 44 is grounded; or one end of the fourth tuning circuit 44 is electrically connected to the second connection point H2, and the other end of the fourth tuning circuit 44 is grounded.

[0277] Further optionally, the third tuning circuit 43 and the fourth tuning circuit 44 form an LC circuit. The LC circuit is inductive with respect to the first frequency band, forming a band-stop circuit in the first frequency band. The LC circuit is capacitive with respect to the second frequency band. The resonant frequency of the LC circuit is greater than the maximum value of the first frequency band and less than the minimum value of the second frequency band, making the LC circuit capacitive with respect to the second frequency band. This in turn tunes the electrical length of the first radiator 11 to increase, causing the resonant frequency band of the higher-order mode formed on the first radiator 11 to differ from both the first and second frequency bands. For example, the resonant frequency band of the higher-order mode is shifted toward the low-frequency side, outside the frequency bands of the first and second frequency bands.

[0278] The resonant frequency of the LC circuit is greater than the maximum value of the first frequency band and less than the minimum value of the second frequency band, so that the LC circuit is inductive with respect to the first frequency band, thereby shortening the electrical length of the first radiator 11 by tuning, so that the resonant point of the first radiator 11 after tuning by the third tuning circuit 43 and the fourth tuning circuit 44 is located within the frequency band of the first frequency band.

[0279] Optionally, the fourth tuning circuit 44 further includes at least one second inductor.

[0280] See also Figure 33 When the third tuning circuit 43 is a second capacitor, the fourth tuning circuit 44 is a second inductor. The second capacitor is used to tune the first radiator 11 to increase its electrical length, causing the resonant frequency band of the higher-order mode formed on the first radiator 11 to differ from both the first and second frequency bands. For example, the resonant frequency band of the higher-order mode is shifted toward the low-frequency side, outside the first and second frequency bands. The second inductor is used to tune the first radiator 11 to decrease its electrical length, causing the resonance point of the first radiator 11, after tuning by the second capacitor and the second inductor, to fall within the first frequency band.

[0281] This application does not make any specific restrictions on the capacitance value of the second capacitor device and the inductance value of the second inductor device. The third tuning circuit 43 and the fourth tuning circuit 44 form an LC circuit, and the resonant frequency of the LC circuit is greater than the maximum value of the first frequency band and less than the minimum value of the second frequency band.

[0282] A coupling gap is formed between the open end of the first radiator 11 and the open end of the second radiator 12; or a coupling gap is formed between the open end of the first radiator 11 and the grounding point of the second radiator 12; or a coupling gap is formed between the grounding point of the first radiator 11 and the open end of the second radiator 12; or the grounding point of the first radiator 11 and the grounding point of the second radiator 12 are adjacent to or the same grounding point. For this embodiment, reference may be made to the relevant description in Example 1.

[0283] The first frequency band includes at least one of the MHB frequency band, the GPS frequency band, and the Wi-Fi-2.4G frequency band. The second frequency band includes at least one of the UHB frequency band and the Wi-Fi-5G frequency band. This implementation method can refer to the relevant description in Example 1.

[0284] With the continuous advancements in electronic devices, the number of antennas in these devices is increasing. This demand has led to a surge in the number of antennas in mobile terminals. However, the space available for antenna design on mobile phones is limited. Faced with such a large number of antenna requirements, designing antennas with shared apertures for different frequency bands has become a solution.

[0285] Due to device ID and aperture limitations, a single aperture in an electronic device typically involves two or more antennas. If four antennas require a shared aperture design, a four-antenna shared aperture design is implemented.

[0286] Optionally, in combination with any of the above embodiments, please refer to Figure 34 and Figure 35 , the antenna assembly 100 also includes a third feed source 33, the third feed source 33 is electrically connected to the first radiator 11 or the second radiator 12; and / or, the antenna assembly 100 also includes a fourth feed source 34, the fourth feed source 34 is the first radiator 11 or the second radiator 12.

[0287] This embodiment allows two or three feed sources to share a radiator, thereby increasing the number of frequency bands supported by the antenna assembly 100 without increasing the size of the radiator. The two or three feed sources sharing a radiator can be designed with a common feed point or separate feed points.

[0288] Since the two antennas share a slot, the electric field strength points at the slot locations of both antennas will cause strong coupling between the two and generate parasitic branches. If the operating frequency bands of the two antennas are very different, high-order mode parasitics will be generated.

[0289] See also Figure 36 and Figure 37The present application adds a grounded filtering network at the first radiator 11 and the second radiator 12 to filter out higher-order modes or improve isolation. At a certain point, filtering networks M1 and M2 are added to the antenna. M1 and M2 can be the aforementioned third tuning circuit 43. Appropriate boundary conditions are also applied to the antenna at this point to maximize antenna performance, improve isolation, or filter out higher-order modes parasitic to the opposing antenna.

[0290] For the sake of convenience, the first feed source 31 and the first radiator 11 are defined as a first antenna unit, and the second feed source 32 and the second radiator 12 are defined as a second antenna unit.

[0291] Figure 38 This is a topological diagram of a first antenna unit and a second antenna unit in an electronic device 1000 that are designed to be matched. Figure 39 is an equivalent circuit diagram of the first antenna unit and the second antenna unit.

[0292] The first antenna unit's first feed point A1 to the first ground point D1 is equivalent to an inductor L1, and the first antenna unit's first feed point A1 to the first open end E1 is equivalent to an inductor L2. Furthermore, a parasitic capacitor C2 exists between the first radiator 11 of the first antenna unit and the reference ground plane 500. Similarly, the second antenna unit's second feed point A2 to the second open end E2 is equivalent to an inductor L3, and the second feed point A2 to the second ground point D2 is equivalent to an inductor L4. Furthermore, a parasitic capacitor C3 exists between the second radiator 12 of the second antenna unit and the reference ground plane 500. The first and second antenna units are connected via a coupling capacitor C1.

[0293] Figure 40 This is an equivalent circuit topology diagram of the antenna assembly provided by the present application, in which two common-slot mouth-to-mouth frame antennas are provided with a tuning circuit M1.

[0294] A tuning circuit M1 is added to the ground near the opening on the first antenna unit. The tuning circuit M1 can be the third tuning circuit 43 mentioned above. The fundamental principle of the tuning circuit M1 is to adjust Figure 40 The inductance of L2 causes the high-order mode of the second antenna unit generated on the first antenna unit to deviate from the working frequency band of the second antenna unit.

[0295] See also Figure 5 and Figure 41 , Figure 41 This is a circuit schematic diagram of the antenna assembly 100 provided in this application adjusting L2 in parallel. Figure 41 is Figure 39On the basis of the above, a parallel tuning circuit M2 is connected next to the equivalent inductor L2. The parallel tuning circuit M2 next to the equivalent inductor L2 can be the aforementioned first tuning circuit 41, or the aforementioned first tuning circuit 41 and second tuning circuit 42.

[0296] From the perspective of circuit, in addition to adding a matching network to the ground, the inductance of L2 can also be adjusted by connecting the first tuning circuit 41 in parallel to L2. The topology diagram can be shown as follows: Figure 5 As shown. It is worth noting that connecting the first tuning circuit 41 in parallel with L2 not only tunes the inductance of L2, thereby tuning the position of the second antenna unit's higher-order modes on the first antenna unit, but also, when the first tuning circuit 41 is a capacitor, L2 and the first tuning circuit 41 can be considered to form a band-stop at the second antenna unit's operating frequency band, thereby reducing coupling between the first and second antenna units, improving higher-order modes, and enhancing isolation.

[0297] See also Figure 42 and Figure 43 The same method can also be used to adjust Figure 39 The inductance value of L1. Figure 42 is Figure 41 On the basis of the above, a parallel tuning circuit M2 is connected next to the equivalent inductor L1. The parallel tuning circuit M2 next to the equivalent inductor L1 can be the aforementioned first tuning circuit 41, or the aforementioned first tuning circuit 41 and second tuning circuit 42. Of course, the second antenna unit can also be adjusted in the same way.

[0298] See also Figure 44 , Figure 44 1 is a schematic diagram of the structure of the antenna assembly 100 provided in this application when it is implemented on an electronic device 1000. Figure 5 . The first connection point H1 is located at the first feeding point A1, the second connection point H2 is located between the first feeding point A1 and the first opening end E1, and the first connection point H1, the first feeding point A1 and the second connection point H2 are all arranged on the top frame 321. The antenna assembly 100 also includes a first spring 61 and a second spring 62. Among them, the first spring 61 is electrically connected between the first matching circuit 21 and the first feeding point A1 (first connection point H1), and the second spring 62 is connected to the second connection point H2. The first tuning circuit 41 is a capacitor device, and the two ends of the capacitor device are electrically connected between the first spring 61 and the second spring 62 through a conductive connection line (such as a PCB trace). The second tuning circuit 42 is an inductor device, and the two ends of the inductor device are electrically connected between the first spring 61 and the second spring 62 through a conductive connection line.

[0299] See also Figure 31The effect of this application is demonstrated by the small antenna group architecture of the top antenna of the current electronic device 1000. The current electronic device 1000 has wifi-2.4G, wifi-5G, N78, GPS-L1 antennas in the upper left corner (small antenna group) when viewed from the back, and these four antennas share a common gap design, such as Figure 31 As shown. Because the operating frequency bands of the Wi-Fi-5G+N78 antenna and the GPS-L1 antenna differ significantly, the GPS-L1 antenna will parasitize higher-order modes of the Wi-Fi-5G antenna or N78 antenna, affecting the efficiency of the Wi-Fi-5G antenna or N78 antenna. However, the Wi-Fi-5G antenna or N78 antenna operates at a higher frequency band than the GPS-L1 antenna, and its radiator is shorter, so it will not parasitize higher-order modes of the GPS-L1 antenna's operating frequency band. Therefore, a third tuning circuit 43 is designed on the GPS-L1 antenna to address the higher-order modes of the Wi-Fi-5G antenna or N78 antenna on it. The isolation between the GPS-L1 antenna and the Wi-Fi-5G antenna or N78 antenna due to the port-to-port design can be improved by adding a filtering network to the feed port (because they are at different frequencies). For example, the feed port of the first antenna unit can be equipped with a filtering circuit for the Wi-Fi-5G antenna or N78, while the feed port of the second antenna unit can be equipped with filtering circuits for the GPS-L1 and Wi-Fi-2.4G antennas.

[0300] For ease of description, M1 is defined as the third tuning circuit 43 , and point M1 is the position where the third tuning circuit 43 is connected to the radiator.

[0301] When there is no matching device at point M1 and it is in the disconnected state, the radiation efficiency of wifi-5G and N78 antenna is as follows: Figure 45 As shown in the figure, there is an efficiency dip within the Wi-Fi 5G operating band, and the overall radiation efficiency is below -5dB. The main reason for the low efficiency and efficiency dip is the presence of high-order parasitic modes on the GPS-L1 antenna.

[0302] The first sub-frequency band includes the GPS-L1 frequency band. The second sub-frequency band includes the wifi-2.4G frequency band, the third sub-frequency band includes the N78 frequency band, and the fourth sub-frequency band includes the wifi-5G frequency band. In the case where the first tuning circuit 41 is not set, the center frequency point of the resonant frequency band of the first higher-order resonance mode is, for example, 2.9 GHz. The first higher-order resonance mode causes an efficiency pit in the N78 frequency band or the efficiency pit is closer to the low-frequency side of the N78 frequency band, resulting in a decrease in the efficiency of the N78 frequency band. In the case where the first tuning circuit 41 is not set, the center frequency point of the resonant frequency band of the second higher-order resonance mode is, for example, 4.8 GHz. The second higher-order resonance mode causes an efficiency pit in the wifi-5G frequency band or the efficiency pit is closer to the low-frequency side of the wifi-5G frequency band, resulting in a decrease in the efficiency of the wifi-5G frequency band.

[0303] See also Figures 46-48 , when adding M1 matching network to ground (M1 is 1pf), as Figure 46 As shown in the figure, the radiation efficiency of wifi-5G and N78 antenna is as follows Figure 47 As shown. Figure 45 , it can be seen that there is no efficiency pit in the wifi-5G band and the radiation efficiency is higher than -3dB. It can be seen that adding a ground matching network at point M1 can eliminate the high-order parasitic modes of the wifi-5G and N78 antennas generated on the GPS-L1 antenna. However, at this time, the radiation efficiency of the GPS-L1 antenna and the wifi-2.4G antenna is as follows Figure 48 As shown. Figure 48 It can be seen that when M1 has 1pf capacitance or not, the efficiency of WiFi2.4G decreases by nearly 3dB, and the efficiency of GPS-L1 band also decreases. Figure 48 It can also be seen that when M1 is open, GPS-L1 and Wi-Fi-2.4G have better efficiency. To comprehensively consider the efficiency of the Wi-Fi-2.4G, Wi-Fi-5G, N78, and GPS-L1 antennas, it can be seen that adding only a 1pF capacitor to M1 is clearly insufficient.

[0304] See also Figure 33 、 Figures 49 and 50 , this application adds a filter network at point M1, making GPS-L1 and wifi-2.4G equivalent to open circuit or inductor at M1, and wifi-5G, N78, equivalent to 1pf capacitor at M1. By calculation, we can get Figure 33 The circuit shown can make GPS-L1 and wifi-2.4G equivalent to inductors at point M1, and wifi-5G, N78, equivalent to a capacitor of nearly 1pf at M1. Figure 33 The efficiency of the Wi-Fi-2.4G and GPS-L1 circuits brought to M1 is as follows: Figure 49 As shown, it can be seen that the efficiency of wifi-2.4G and GPS-L1 decreased by 1.5dB and 0.5dB respectively. Figure 33 The component values ​​of the matching network are Figure 50 As can be seen from the figure (the values ​​for the Wi-Fi-2.4G antenna are equivalent to an open circuit or inductor at M1, and the Wi-Fi-5G antenna are equivalent to a 1pf capacitor at M1), improving the efficiency of GPS-L1 leads to poor efficiency for Wi-Fi-2.4G. Therefore, the matching network at M1 is unable to achieve optimal efficiency for all four antennas simultaneously: Wi-Fi-2.4G, Wi-Fi-5G, N78, and GPS-L1.

[0305] For the sake of convenience, the first tuning circuit 41 is defined as M2 , and the position where the first tuning circuit 41 is electrically connected to the second radiator 12 is defined as the M2 position.

[0306] See also Figure 3 、 Figure 31 、 Figure 51-52 , this application applies to the tuning method of wifi-2.4G, GPS-L1, wifi-5G, N78 four antennas as follows Figure 3 As shown. Figure 3 A 0.5pF capacitor is loaded at the M2 position in the figure. The efficiency of the wifi-5G N78 antenna is as follows: Figure 51 As shown, the red curve is Figure 31 The M1 position in the figure is loaded with a 1pf capacitor, and the green one is Figure 3 The M2 position in the figure is loaded with a 0.5pf capacitor. It can be seen that the tuning effect of this application on the wifi-5G and N78 antennas is similar. Figure 3 When the M2 position in the figure is loaded with a 0.5pf capacitor, the efficiency of the WiFi-2.4G and GPS-L1 antennas is as follows: Figure 52 As shown, it can be seen that the wifi-2.4G, GPS-L1 antenna efficiency is Figure 31 The efficiency of M1 disconnection is close. Therefore, this application is compatible with the boundary conditions of wifi-2.4G, GPS-L1, wifi-5G, and N78 four antennas.

[0307] The first sub-band includes the GPS-L1 band. The second sub-band includes the wifi-2.4G band, the third sub-band includes the N78 band, and the fourth sub-band includes the wifi-5G band. After setting the first tuning circuit 41 (loading a capacitor of 0.5pF), the center frequency of the resonant frequency band of the first higher-order resonance mode is, for example, 2.2GHz, that is, it is located between the first sub-band and the second sub-band to reduce the impact on the N78 band. At the same time, after setting the first tuning circuit 41 (loading a capacitor of 0.5pF), the center frequency of the resonant frequency band of the second higher-order resonance mode is, for example, 4.0GHz, that is, the resonant frequency band of the second higher-order resonance mode is far away from the wifi-5G band to reduce the impact on the wifi-5G band and improve the efficiency of the wifi-5G band.

[0308] The antenna assembly 100 provided in the present application treats the antenna as equivalent to a circuit, and tunes the equivalent electrical length of the antenna by adding a parallel matching network in the direction of the parallel radiator, thereby achieving the effect of tuning the antenna. It is used for tuning a single antenna and solving problems such as isolation and mutual influence between different antennas; it provides more debugging methods and possibilities for antenna debugging; and solves the isolation and mutual influence between antennas when multiple antennas share an aperture design.

[0309] Of course, this application can also be combined with the ground-tuned M1 point to work together, such as Figure 27 As shown in the form, of course, the second antenna unit side can also have the same structure. Here, only the first antenna unit side is described for illustration.

[0310] For further explanation, the parallel tuning circuit of the first radiator 11 provided in the embodiment of the present application is defined as a first tuning circuit 41 .

[0311] See also Figure 8 In this application, the two connection points of the first tuning circuit 41 (ie, the first connection point H1 and the second connection point H2) can be on the same side of the feeding point or on the lower side. Figure 8 In the illustrated embodiment, the two connection points of the first tuning circuit 41 (ie, the first connection point H1 and the second connection point H2) are located on both sides of the first feeding point A1. The same structure can also be used on the side of the second antenna unit.

[0312] See also Figure 18 , this application Figure 8 The form shown can also be expanded by combining the tuning form of the first tuning circuit 41. Figure 18 shown.

[0313] See also Figure 7 、 Figure 19 、 Figure 20 、 Figure 21 , this application is used when the first antenna unit and the second antenna unit are close to the first opening end E1. Figure 7 The connection points of the first tuning circuit 41 are respectively at the first opening end E1 of the antenna and the first grounding point D1. Figure 19 The connection points (the first connection point H1 and the second connection point H2) of the first tuning circuit 41 are respectively at the first feeding point A1 of the first antenna unit and the second feeding point A2 of the second antenna unit. Figure 20 The connection points (the first connection point H1 and the second connection point H2) of the first tuning circuit 41 are respectively near the first opening end E1 of the first antenna unit and the second opening end E2 of the second antenna unit. Figure 21 The connection points (the first connection point H1 and the second connection point H2) of the first tuning circuit 41 are respectively at the first ground point D1 of the first antenna unit and the second ground point D2 of the second antenna unit.

[0314] In addition to being applicable to a mouth-to-mouth antenna (where the first open end E1 is close to the second open end E2), the present application can also be applied to a first antenna unit and a second antenna unit with a common return ground.

[0315] See also Figure 22 、 Figure 23 、 Figure 24 ,like Figure 22As shown, the present application is used for two antennas with a common return ground, and the connection points of M in the present application are on both sides of the return ground and are not at the same point as the feeding point. Correspondingly, there is a form in which the connection points of the first tuning circuit 41 (the first connection point H1 and the second connection point H2) are at the same point as the feeding point, as shown in FIG. Figure 23 The connection points of the first tuning circuit 41 (the first connection point H1 and the second connection point H2) are located near the first opening end E1 of the first antenna unit and the second opening end E2 of the second antenna unit as shown in FIG. Figure 24 Of course, only the connection points (first connection point H1 and second connection point H2) of the first tuning circuit 41 of the present application are shown here, both of which are located near the first open end E1 of the first antenna unit and the second open end E2 of the second antenna unit, and are between the feed point and the ground point. Alternatively, one end of the first tuning circuit 41 may be located between the feed point and the ground point, and the other end may be located near the open end of the antenna.

[0316] See also Figure 28 、 Figure 29 Of course, in addition to being used for tuning between the first antenna unit and the second antenna unit, this application can also be used for tuning between a single antenna and a parasitic branch, such as Figure 28 、 Figure 29 The present application can work with the M1 tuning mode. It can also work without the M1 tuning mode. Figure 28 、 Figure 29 M1 in the figure can be designed as a transmission line.

[0317] See also Figure 24-26 The present application is used to tune a first antenna unit in the form of a first opening end E1 of an antenna adjacent to a first grounding point D1 of another antenna and a second antenna unit in the form of Figure 24 、 Figure 25 、 Figure 26 shown.

[0318] Of course, it is worth noting that the two connection points (H1 and H2) of the first tuning circuit 41 of the present application are Figure 24 、 Figure 25 、 Figure 26 The position shown may also be any position between the first grounding point D1 of the first antenna unit and the first open end E1 of the second antenna unit.

[0319] Figure 24 The present application is a topological diagram of a first antenna unit and a second antenna unit for tuning a first open end E1 of an antenna close to a first ground point D1 of another antenna (the connection points H1 and H2 of the first tuning circuit 41 are the same as the first feeding point A1 of the first antenna unit and the feeding point A2 of the second antenna unit).

[0320] Figure 25 The present application is a topological diagram of a first antenna unit and a second antenna unit for tuning a first open end E1 of an antenna close to a first ground point D1 of another antenna (the connection points H1 and H2 of the first tuning circuit 41 are the first ground point D1 of the first antenna unit and the second feeding point A2 of the second antenna unit, respectively).

[0321] Figure 26 The present application is a topological diagram of a first antenna unit and a second antenna unit for tuning a first open end E1 of an antenna close to a first ground point D1 of another antenna (the connection points H1 and H2 of the first tuning circuit 41 are the same as the first feeding point A1 of the first antenna unit and the second ground point D2 of the second antenna unit).

[0322] The above-mentioned present application can work in conjunction with the tuning method of the first tuning circuit 41, and will not be listed here one by one. In addition, in addition to being used in a multi-antenna system, the present application can also be used for tuning a single antenna. In addition, the present application can also be used for antennas with process forms such as FPC, LDS, and PDS.

[0323] 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, the first radiator comprising a first connection point, a first feeding point, and a second connection point; a first feed source, the first feed source being electrically connected to the first feed point, and the first feed source being used to excite the first radiator to generate a first resonant mode supporting a first frequency band; a second radiator, the second radiator being disposed adjacent to the first radiator; a second feed source electrically connected to the second radiator, the second feed source being used to excite the second radiator to generate a second resonant mode supporting a second frequency band, wherein a center frequency of the second frequency band is greater than or equal to twice the center frequency of the first frequency band; and A first tuning circuit, one end of the first tuning circuit is electrically connected to the first connection point, and the other end of the first tuning circuit is electrically connected to the second connection point, and the first tuning circuit is used to make the resonant frequency band of the higher-order mode on the first radiator different from both the first frequency band and the second frequency band.

2. The antenna assembly according to claim 1, wherein: The first radiator also includes a first grounding point and a first open end, the first feeding point is located between the first grounding point and the first open end; the second connection point is located between the first grounding point and the first open end, and the first connection point is located at the first grounding point or between the first grounding point and the second connection point.

3. The antenna assembly according to claim 1, wherein: The first radiator includes a first sub-radiating segment and a second sub-radiating segment, the first sub-radiating segment includes a first sub-grounding point, a first feeding point, and a first sub-opening end, the second sub-radiating segment includes a second sub-opening end and a second sub-grounding point, and a first sub-coupling gap is formed between the first sub-opening end and the second sub-opening end; The first connection point is located between the first sub-grounding point or the first sub-grounding point and the first sub-opening end, and the second connection point is located between the second sub-opening end and the second sub-grounding point or at the second sub-grounding point.

4. An antenna assembly, characterized in that: include: a first radiator, the first radiator comprising a first connection point and a first feeding point; a first feed source, the first feed source being electrically connected to the first feed point, and the first feed source being used to excite the first radiator to generate a first resonant mode supporting a first frequency band; a second radiator, the second radiator being disposed adjacent to the first radiator, the second radiator comprising a second connection point and a second feeding point, a second feed source electrically connected to the second feed point, the second feed source being used to excite the second radiator to generate a second resonant mode supporting a second frequency band, wherein a center frequency of the second frequency band is greater than or equal to twice the center frequency of the first frequency band; and A first tuning circuit, one end of the first tuning circuit is electrically connected to the first connection point, and the other end of the first tuning circuit is electrically connected to the second connection point, and the first tuning circuit is used to make the resonant frequency band of the higher-order mode on the first radiator different from both the first frequency band and the second frequency band.

5. The antenna assembly according to claim 4, wherein: The first radiator further includes a first grounding point and a first open end, the first feeding point is located between the first grounding point and the first open end; the first connection point is located at the first grounding point or between the first grounding point and the first open end; The second radiator further includes a second grounding point and a second open end, the second feeding point is located between the second grounding point and the second open end; the second connection point is located at the second grounding point or between the second grounding point and the second open end.

6. An antenna assembly, characterized in that: include: a first radiator, the first radiator comprising a first connection point, a first feeding point, and a second connection point; a first feed source, the first feed source being electrically connected to the first feed point, and the first feed source being used to excite the first radiator to generate a first resonant mode supporting a first frequency band; a second radiator, the second radiator being disposed adjacent to the first radiator, the second radiator comprising a second feeding point, a second feed source electrically connected to the second feed point, the second feed source being used to excite the second radiator to generate a second resonant mode supporting a second frequency band, wherein a center frequency of the second frequency band is greater than or equal to twice the center frequency of the first frequency band; a first tuning circuit, wherein one end of the first tuning circuit is electrically connected to the first connection point, and the other end of the first tuning circuit is electrically connected to the second connection point; and a third tuning circuit, one end of the third tuning circuit being electrically connected to the first radiator, and the other end of the third tuning circuit being grounded, wherein the third tuning circuit and the first tuning circuit are used to make the resonant frequency band of the higher-order mode on the first radiator different from both the first frequency band and the second frequency band.

7. The antenna assembly according to claim 6, wherein: The first radiator also includes a first grounding point and a first open end, the first feeding point is located between the first grounding point and the first open end; the second connection point is located between the first grounding point and the first open end, and the first connection point is located at the first grounding point or between the first grounding point and the second connection point.

8. The antenna assembly according to claim 6, wherein: The first radiator includes a first sub-radiating segment and a second sub-radiating segment, the first sub-radiating segment includes a first sub-grounding point, a first feeding point, and a first sub-opening end, the second sub-radiating segment includes a second sub-opening end and a second sub-grounding point, and a first sub-coupling gap is formed between the first sub-opening end and the second sub-opening end; The first connection point is located between the first sub-grounding point or the first sub-grounding point and the first sub-opening end, and the second connection point is located between the second sub-opening end and the second sub-grounding point or at the second sub-grounding point.

9. The antenna assembly according to any one of claims 1 to 8, wherein: The first tuning circuit includes at least one first capacitive device.

10. The antenna assembly according to claim 9, wherein: A first connection segment is located between the first connection point and the second connection point, and the first capacitor and the first connection segment form a band-stop circuit for the second frequency band.

11. The antenna assembly according to any one of claims 1 to 8, wherein: The antenna assembly also includes a second tuning circuit, which is electrically connected to the first radiator. The second tuning circuit is used to tune the equivalent electrical length of the first radiator so that the resonance point of the first radiator after tuning by the first tuning circuit and the second tuning circuit is located within the frequency band of the first frequency band.

12. The antenna assembly according to claim 11, wherein: The first tuning circuit and the second tuning circuit form an LC circuit. The LC circuit is inductive for the first frequency band and capacitive for the second frequency band.

13. The antenna assembly according to claim 11, wherein: The second tuning circuit further includes at least one first inductive device.

14. The antenna assembly according to claim 11, wherein: The first tuning circuit includes a plurality of first sub-tuning circuits, which are electrically connected in sequence; the second tuning circuit includes a plurality of second sub-tuning circuits, which are electrically connected in sequence or are all grounding branches.

15. The antenna assembly according to claim 11, wherein: Both ends of the second tuning circuit are electrically connected to the first radiator; or, one end of the second tuning circuit is electrically connected to the first radiator, and the other end of the second tuning circuit is grounded; or, one end of the second tuning circuit is electrically connected to the first radiator, and the other end of the second tuning circuit is electrically connected to the second radiator.

16. An antenna assembly, characterized in that: include: a first radiator, the first radiator comprising a first feed point; a first feed source, the first feed source being electrically connected to the first feed point, and the first feed source being used to excite the first radiator to generate a first resonant mode supporting a first frequency band; a second radiator, the second radiator being adjacent to the first radiator, the second radiator comprising a second feeding point, a second feed source electrically connected to the second feed point, the second feed source being used to excite the second radiator to generate a second resonant mode supporting a second frequency band, wherein a center frequency of the second frequency band is greater than or equal to twice the center frequency of the first frequency band; and A third tuning circuit, one end of the third tuning circuit is electrically connected to the first radiator, and the other end of the third tuning circuit is grounded, and the third tuning circuit is used to make the resonant frequency band of the higher-order mode on the first radiator different from both the first frequency band and the second frequency band.

17. The antenna assembly according to claim 16, wherein: The third tuning circuit includes a second capacitive device.

18. The antenna assembly according to claim 16, wherein: The antenna assembly also includes a fourth tuning circuit, which is electrically connected to the first radiator. The fourth tuning circuit is used to tune the equivalent electrical length of the first radiator so that the resonance point of the first radiator after tuning by the third tuning circuit and the fourth tuning circuit is located within the frequency band of the first frequency band.

19. The antenna assembly according to claim 18, wherein One end of the fourth tuning circuit is electrically connected to the first radiator, and the other end of the fourth tuning circuit is grounded.

20. The antenna assembly according to any one of claims 1 to 8, 10, 12 to 19, wherein: A coupling gap is formed between the open end of the first radiator and the open end of the second radiator; or, a coupling gap is formed between the open end of the first radiator and the grounding point of the second radiator; or, a coupling gap is formed between the grounding point of the first radiator and the open end of the second radiator; or, the grounding point of the first radiator and the grounding point of the second radiator are adjacent to or are the same grounding point.

21. The antenna assembly according to any one of claims 1 to 8, 10, and 12 to 19, wherein: The first frequency band includes a first sub-frequency band and a second sub-frequency band, and the maximum value of the first sub-frequency band is less than the minimum value of the second sub-frequency band; A first higher-order resonance mode and a second higher-order resonance mode are formed on the first radiator, and the resonance frequency band of the first higher-order resonance mode is located between the first sub-frequency band and the second sub-frequency band; or the resonance frequency band of the first higher-order resonance mode is located between the second sub-frequency band and the second frequency band; The resonant frequency band of the second higher-order resonant mode is located between the second sub-frequency band and the second frequency band, or the minimum value of the resonant frequency band of the second higher-order resonant mode is greater than the maximum value of the second frequency band.

22. The antenna assembly according to claim 21, wherein The second frequency band includes a third sub-frequency band and a fourth sub-frequency band, and the resonant frequency band of the second higher-order resonance mode is located between the second sub-frequency band and the third sub-frequency band; or, the resonant frequency band of the second higher-order resonance mode is located between the third sub-frequency band and the fourth sub-frequency band; or, the minimum value of the resonant frequency band of the second higher-order resonance mode is greater than the maximum value of the fourth sub-frequency band.

23. The antenna assembly according to any one of claims 1 to 8, 10, 12 to 19, wherein: The first frequency band includes at least one of an MHB frequency band, a GPS frequency band, and a wifi-2.4G frequency band, and the second frequency band includes at least one of an UHB frequency band and a wifi-5G frequency band.

24. The antenna assembly according to claim 23, wherein: The first frequency band includes the GPS-L1 frequency band, and the second frequency band includes the N78 frequency band; or, The first frequency band includes the GPS-L1 frequency band, and the second frequency band is the WiFi-5G frequency band; or, The first frequency band includes a wifi-2.4G frequency band, and the second frequency band includes a wifi-5G frequency band; or, The first frequency band includes the GPS-L1 frequency band and the wifi-2.4G frequency band, and the second frequency band includes the wifi-5G frequency band; or, The first frequency band includes the GPS-L1 frequency band and the WiFi-2.4G frequency band, and the second frequency band is the N78 frequency band; or, The first frequency band includes the GPS-L1 frequency band and the wifi-2.4G frequency band, and the second frequency band includes the N78 frequency band and the wifi-5G frequency band.

25. The antenna assembly according to any one of claims 1 to 8, 10, 12 to 19, wherein: The antenna assembly further includes a third feed source, which is electrically connected to the first radiator or the second radiator; and / or the antenna assembly further includes a fourth feed source, which is electrically connected to the first radiator or the second radiator.

26. An electronic device, characterized in that: Comprising the antenna assembly according to any one of claims 1 to 25.

27. The electronic device according to claim 26, wherein: The electronic device also includes a frame, which includes a top frame, a first side frame, a bottom frame and a second side frame connected in sequence. At least part of the first radiator is arranged on the top frame, and at least part of the second radiator is arranged on the top frame.

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