Antenna assembly and wearable electronic device

Abstract

The embodiment of the application discloses an antenna assembly and a wearable electronic device, wherein the antenna assembly comprises a circuit board, a board-to-board connector and a connector fixing part, a feeding point is arranged on the circuit board, the board-to-board connector is arranged on the circuit board, the connector fixing part comprises a recess part and a connecting part, the board-to-board connector is located in the accommodation space of the recess part, and the connecting part is fixedly connected with the feeding point on the circuit board, so that the connector fixing part serves as an antenna radiator and is used for transmitting and receiving radio frequency signals. The embodiment of the application uses the connector fixing part as the radiator, so that the multiplexing of the internal device and the diversity of the antenna design are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, in particular to an antenna assembly and a wearable electronic device. BACKGROUND

[0002] At present, for the smart watch or bracelet with plastic shell, the antenna is generally realized by the conventional FPC (Flexible Printed Circuit), in-mold injection or LDS (Laser Direct Structuring) and the like. For the smart watch or bracelet with metal frame shell, the antenna is generally realized by using the external metal frame as the antenna body.

[0003] The applicant finds that, for the smart watch or bracelet with plastic shell, additional antenna implementation process or material needs to be added, which increases the design cost and structural design space. SUMMARY

[0004] Embodiments of the present application provide an antenna assembly and a wearable electronic device. The connector fixing part is used as a radiator, which improves the multiplicity of internal devices and the diversity of antenna design.

[0005] In a first aspect, an embodiment of the present application provides an antenna assembly, which comprises:

[0006] a circuit board, wherein a feeding point is arranged on the circuit board;

[0007] a board-to-board connector, wherein the board-to-board connector is arranged on the circuit board;

[0008] a connector fixing part, wherein the connector fixing part comprises a recessed part and a connecting part, the board-to-board connector is located in a receiving space of the recessed part, and the connecting part is fixedly connected with the feeding point on the circuit board, so that the connector fixing part is used as an antenna radiator and is used for transmitting and receiving radio frequency signals.

[0009] In a second aspect, an embodiment of the present application provides a wearable electronic device, which comprises a main body part and a wearing part, the wearing part is connected with the main body part, the wearing part is used for fixing the wearable electronic device to an external object, and the main body part comprises the antenna assembly as described above.

[0010] In the embodiment of the present application, the antenna assembly comprises a circuit board, a board-to-board connector and a connector fixing member. The circuit board is provided with a feeding point. The board-to-board connector is arranged on the circuit board. The connector fixing member comprises a recessed part and a connecting part. The board-to-board connector is located in the accommodation space of the recessed part. The connecting part is fixedly connected with the feeding point on the circuit board, so that the connector fixing member serves as an antenna radiator and is used for transmitting and receiving radio frequency signals. In the embodiment of the present application, the connector fixing member is used as a radiator, thereby improving the multiplexing of internal devices and the diversity of antenna design. BRIEF DESCRIPTION OF DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0012] Figure 1 is a first structural schematic diagram of an antenna assembly provided by the embodiment of the present application.

[0013] Figure 2 is a second structural schematic diagram of an antenna assembly provided by the embodiment of the present application.

[0014] Figure 3 is a first top view of a connector fixing member provided by the embodiment of the present application.

[0015] Figure 4 is a third structural schematic diagram of an antenna assembly provided by the embodiment of the present application.

[0016] Figure 5 is a fourth structural schematic diagram of an antenna assembly provided by the embodiment of the present application.

[0017] Figure 6 is a second top view of a connector fixing member provided by the embodiment of the present application.

[0018] Figure 7 is a structural schematic diagram of a wearable electronic device provided by the embodiment of the present application. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0020] In addition, the following description of the embodiments with reference to the accompanying drawings is used to illustrate specific embodiments in which the application can be implemented. The direction terms mentioned in the application, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "thickness", etc. are only the directions of the accompanying drawings, therefore, the direction terms used are for better, clearer illustration and understanding of the application, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0021] In the description of the application, it should be noted that unless otherwise explicitly specified and limited, the terms "assembly", "connection", "connection", "arranged on" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0022] Please refer to Figure 1 , Figure 1 is the first structure schematic diagram of the antenna assembly provided by the embodiment of the application. The antenna assembly comprises a circuit board 10, a board-to-board connector and a connector fixing piece 30. Wherein, the above-mentioned circuit board 10 can be a printed circuit board, a feed point 11 can be arranged on the circuit board 10, and the feed point can access a signal source inside the device, for example, the accessed signal source can be a cellular network signal, a wireless fidelity (Wireless Fidelity, Wi-Fi) signal, a Bluetooth (Bluetooth, BT) signal, a GPS signal and the like.

[0023] In an embodiment, the board-to-board connector is arranged on the circuit board 10, wherein the number and type of the above-mentioned board-to-board connector can be various, for example Figure 1 As shown in the figure, four board-to-board connectors are arranged on the circuit board 10, which can be an LCD (Liquid crystal display) connector 21, a Sub (Sub) connector 22, a BAT (Battery) connector 23 and a Key (Keypad) connector 24 respectively.

[0024] In an embodiment, the connector fixing piece 30 can comprise a recessed part 31 and a connecting part 32, the board-to-board connector is located in the accommodation space of the recessed part 31, and the connecting part 32 is fixedly connected with the feed point 11 on the circuit board 10, so that the connector fixing piece serves as an antenna radiator and is used for transmitting and receiving radio frequency signals.

[0025] In an embodiment, the connecting portion 32 can be arranged at the central region of the recessed portion 31, and the feeding point 11 on the circuit board 10 can also be arranged at the position corresponding to the connecting portion 32. The connecting portion 32 can be fixedly connected with the feeding point 11 on the circuit board 10 by a fastener 50, so as to fix the connector fixing sheet 30 on the circuit board 10 and protect the plurality of board-to-board connectors 21, 22, 23 and 24 in the internal accommodation space of the recessed portion 31.

[0026] In an embodiment, a buffer material 40 can also be filled in the recessed portion 31 of the connector fixing sheet 30. The buffer material 40 can be arranged between the top of the recessed portion 31 and the board-to-board connectors, so as to abut the board-to-board connectors on the circuit board 10 and make the board-to-board connectors more secure. The buffer material 40 can be made of elastic material, so as to have the deformation ability under external force, thereby protecting the plurality of board-to-board connectors in the recessed portion 31.

[0027] Optionally, the buffer material 40 can be made of foam, silica gel material or spring steel material, etc. In other embodiments, the buffer material 40 can also be made of other elastic materials, which will not be described further in the present application. The buffer material 40 can have a plate or sheet structure, and the area can be consistent with or slightly smaller than the area of the top of the recessed portion 31 of the connector fixing sheet 30.

[0028] In an embodiment, a first through hole can be arranged at the feeding point 11 on the circuit board 10, and a second through hole can be arranged on the connecting portion 32 of the connector fixing sheet 30 and opposite to the first through hole. The first through hole and the second through hole can be fixedly connected by the fastener 50. The first through hole and the second through hole can respectively penetrate the circuit board 10 and the connecting portion 32, so that the fastener 50 penetrates the circuit board 10 and the connecting portion 32, and then the fastener 50 can be fixed to the circuit board 10 and the connecting portion 32 by welding.

[0029] In other embodiments, the first through hole and the second through hole can also not penetrate the circuit board 10 and the connecting portion 32. For example, the first through hole can penetrate into the inside of the circuit board 10, and the second through hole can penetrate into the inside of the connecting portion 32, so that the fastener 50 penetrates into the inside of the circuit board 10 and the connecting portion 32. In this case, the fastener 50 can be an expansion screw, so as to connect and fix the circuit board 10 and the connecting portion 32.

[0030] In one embodiment, the fastener 50 can also be a screw. In particular, the first through hole on the circuit board 10 and the second through hole on the top of the recessed portion 31 of the connector fixing member 30 are internally threaded. The external thread of the fastener 50 is adapted to the internal thread of the first and second through holes, so that the external thread of the fastener 50 is screwed into the internal thread of the first and second through holes, respectively, to fix the circuit board 10 and the connector fixing member 30.

[0031] Further, when the fastener 50 is a screw, the external thread of the fastener 50 can include a first portion and a second portion. The first portion is adapted to the internal thread of the first through hole, and the second portion is adapted to the internal thread of the second through hole. Rotating the fastener 50 can reduce the distance between the connector fixing member 30 and the circuit board 10, thereby fixing the connector fixing member 30 to the circuit board 10.

[0032] In one embodiment, the connector fixing member 30 and the circuit board 10 can be fixed by multiple fasteners 50 to make the connection between the connector fixing member 30 and the circuit board 10 more secure. Please refer to Figure 2 In this embodiment, the antenna assembly includes the circuit board 10, the board-to-board connectors 21, 22, 23, 24, and the connector fixing member 30.

[0033] The board-to-board connectors 21, 22, 23, 24 are arranged in the receiving space of the recessed portion 31 of the connector fixing member 30. The circuit board 10 is provided with three feed points, including a first feed point, a second feed point, and a third feed point, which are arranged between the board-to-board connectors 21 and 22, the board-to-board connectors 22 and 23, and the board-to-board connectors 23 and 24, respectively. Correspondingly, the top of the recessed portion 31 of the connector fixing member 30 is also provided with three connecting portions 32, including a first connecting portion, a second connecting portion, and a third connecting portion, which are arranged corresponding to the three feed points on the circuit board 10.

[0034] The fasteners can include three fasteners, such as a first fastener, a second fastener, and a third fastener. The first fastener fixes the first feed point and the first connecting portion, the second fastener fixes the second feed point and the second connecting portion, and the third fastener fixes the third feed point and the third connecting portion, thereby achieving the fixed connection between the connector fixing member 30 and the circuit board 10.

[0035] In the above embodiment, the connecting portions 32 are arranged on the top of the recessed portion 31, thereby fixing the connector fixing member 30 on the circuit board 10. In particular, the connector fixing member 30 can be a steel sheet, thereby achieving the function of transmitting and receiving radio frequency signals after connecting the feed points on the circuit board 10 by the fasteners 50, and being used as an antenna radiator of a device.

[0036] In other embodiments, the connecting portion 32 may also be provided on one side or both sides of the recessed portion 31. Figure 3 , Figure 3 FIG. 3 is a first top view of a connector fixing member 30 provided in an embodiment of the present application. In this embodiment, the connector fixing member 30 may include a recessed portion 31 and two connecting portions 32 on both sides.

[0037] The above Figure 3 The connector fixing member 30 in the antenna assembly is referenced in the schematic diagram. Figure 4 In this embodiment, the antenna assembly includes a circuit board 10, a board-to-board connector, and a connector fixture 30. The circuit board 10 may be a printed circuit board, on which a feed point 11 may be provided, which may be connected to a signal source inside the device.

[0038] In one embodiment, the board-to-board connector is provided on the circuit board 10, such as Figure 4 As shown, four board-to-board connectors are provided on the circuit board 10. For example, they may be an LCD connector 21, a Sub connector 22, a BAT connector 23, and a Key connector 24.

[0039] In one embodiment, the connector fixing piece 30 may include a recessed portion 31 and a connecting portion 32. The above-mentioned multiple board-to-board connectors 21, 22, 23, and 24 are all located in the receiving space of the recessed portion 31. The connecting portion 32 is fixedly connected to the feeding point 11 on the circuit board 10, so that the connector fixing part serves as an antenna radiator and is used to transmit and receive radio frequency signals.

[0040] In this embodiment, the circuit board 10 includes two feed points 11. The connector fixture 30 includes two connecting portions 32, and the two feed points 11 on the circuit board 10 are located on either side of the board-to-board connector. The connecting portions 30 secure the connector fixture 30 to the circuit board 10 at the two feed points 11.

[0041] Furthermore, the two connecting parts 32 can each be fixedly connected to the feeding point 11 on the circuit board 10 through a fastener 50, so that the connector fixing plate 30 is fixed on the circuit board 10 and protects the multiple board-to-board connectors 21, 22, 23 and 24 in the internal receiving space of the recessed part 31.

[0042] In one embodiment, a first through hole can be provided at both feeding points 11 on the circuit board 10, and a second through hole corresponding to the first through hole can be provided on both connecting portions 32 of the connector fixing member 30, and the two first through holes and the two second through holes are fixedly connected by fasteners 50.

[0043] In an embodiment, the two fasteners can be screws. Specifically, inner threads are provided on the inner sidewalls of the two first through holes on the circuit board 10 and the two second through holes on the connecting portion 32, which are adapted to the outer threads of the screws, so that the outer threads of the fasteners 50 can be screwed with the inner threads of the first through holes and the second through holes respectively to fix the circuit board 10 and the connecting portion 32.

[0044] Further, when the fasteners 50 are screws, the outer threads of the fasteners 50 can include a first portion and a second portion, the rotation direction of the first portion being opposite to that of the second portion, the rotation direction of the inner threads of the first through holes being adapted to that of the first portion, and the rotation direction of the inner threads of the second through holes being adapted to that of the second portion. By rotating the fasteners 50, the distance between the connecting portion 32 and the circuit board 10 can be reduced, so as to fasten the connecting portion 32 to the circuit board 10.

[0045] In an embodiment, the two fasteners can also be screws 50 and nuts 51, as shown in FIG. 4, wherein the two screws 50 on the left and right sides pass through the second through holes of the two connecting portions 32, then pass through the two first through holes on the circuit board 10, and then nuts 51 are installed on the exposed portions of the screws 50 after passing through the first through holes, so as to fix the circuit board 10 and the connecting portion 32. Figure 5

[0046] In other embodiments, in order to further improve the stability of the connection between the circuit board 10 and the connector fixing member 30, a plurality of second through holes can be further provided on the connector fixing member 30, and correspondingly, a plurality of feeding points and first through holes are also provided on the circuit board 10. As shown in FIG. 5, Figure 6 Figure 6 is a second top view of the connector fixing member provided by the embodiments of the present application. In this embodiment, one second through hole is provided on the left connecting portion 32 of the recessed portion 31, and two second through holes are provided on the right connecting portion 32 of the recessed portion 31. It should be noted that the number of the above-mentioned holes corresponds to the number of holes on the circuit board 10, and the present application does not make further limitations thereon.

[0047] In an embodiment, the recessed portion 31 and the connecting portion 32 are integrally formed, so as to reduce the process difficulty and cost of manufacturing the connector fixing member 30. For example, the recessed portion 31 and the connecting portion 32 are integrally formed by an injection molding process, or the recessed portion 31 and the connecting portion 32 are integrally formed by a bending process or a stamping process of a metal plate member. The recessed portion 31 and the connecting portion 32 made of a metal plate member have a small thickness and high strength, which is conducive to reducing the volume of the connector fixing member 30, thereby being conducive to the lightness and thinness of the terminal. ​​

[0048] In an embodiment, the antenna assembly can further include a main radiator, and another feeding point is provided on the circuit board 10 and electrically connected to the main radiator. At this time, the connector fixing member 30 and the main radiator can form a dual antenna, and one of the two antenna radiators can be selected to transmit and receive a radio frequency signal according to actual needs. Different frequency bands of radio frequency signals can also be transmitted and received at the same time, for example, the main radiator is used as a medium-high frequency (1710-2700 MHz) radio frequency transmitting and receiving antenna, and the connector fixing member 30 is used as a low frequency (700-960 MHz) radio frequency transmitting and receiving antenna.

[0049] In other embodiments, the main radiator can also be electrically connected to the connector fixing member 30, and a grounding point can be provided on the circuit board 10, and the connector fixing member 30 is electrically connected to the grounding point on the circuit board 10. At this time, in the antenna assembly, the connector fixing member 30 is used as part of the antenna, and the functions of the antenna are realized and optimized by cooperating with the conventional antenna design. For this design scheme, the flexibility of antenna optimization can be improved, and the antenna bandwidth can be expanded, which provides better possibilities for optimizing the performance of the antenna.

[0050] In summary, the antenna assembly provided in the embodiments of the present application includes a circuit board, a board-to-board connector, and a connector fixing member. The circuit board is provided with a feeding point, the board-to-board connector is arranged on the circuit board, the connector fixing member includes a recessed part and a connecting part, the board-to-board connector is located in the accommodation space of the recessed part, and the connecting part is fixedly connected with the feeding point on the circuit board, so that the connector fixing member is used as an antenna radiator and for transmitting and receiving a radio frequency signal. The embodiments of the present application use the connector fixing member as a radiator, thereby improving the multiplexing of internal devices and the diversity of antenna design.

[0051] Continuing to refer to Figure 7 , Figure 7 is a structural schematic diagram of a wearable electronic device provided by the embodiments of the present application. The wearable electronic device provided by the embodiments of the present application can be a smart watch. Taking the smart watch as an example, the electronic device 10 includes a wearing part 100 and a main body part 200. The wearing part 100 includes a first part 110 and a second part 120, which can be two watch bands of the smart watch. The main body part 200 includes a middle frame 210, a shell 220, and a display screen 230. The antenna assembly described above can be provided on the main body part 200.

[0052] It can be understood that the display screen 230 can include a display surface and a non-display surface opposite to the display surface. The display surface is a surface of the display screen 230 facing the user, that is, a surface of the display screen 230 visible to the user on the electronic device 10. The non-display surface is a surface of the display screen 230 facing the inside of the electronic device 10. Among them, the display surface is used to display information, and the non-display surface does not display information. The display screen 230 can include a liquid crystal display (LCD) or an organic light-emitting diode display (OLED) or the like.

[0053] It can be understood that a cover plate can also be provided on the display screen 230 to protect the display screen 230 from being scratched or damaged by water. Among them, the cover plate can be a transparent glass cover plate, so that the user can observe the content displayed by the display screen 230 through the cover plate. It can be understood that the cover plate can be a glass cover plate made of sapphire material.

[0054] The middle frame 210 and the shell 220 can form a shell of the electronic device 10. The shell is used to form the external contour of the electronic device 10, so as to accommodate electronic devices, functional components and the like of the electronic device 10, while sealing and protecting the electronic devices and functional components inside the electronic device. For example, the battery, camera, vibration motor and the like of the electronic device 10 can be arranged inside the shell 220.

[0055] In some embodiments, the shell 220 can be a metal shell, such as a magnesium alloy, stainless steel or the like. It should be noted that the material of the shell 220 of the present application is not limited to this, and other ways can also be used, such as: the shell 220 can be a plastic shell. Also, for example: the shell 220 is a ceramic shell. For example, the shell 220 can include a plastic part and a metal part, and the shell 220 can be a metal and plastic cooperating shell structure. Specifically, the metal part can be formed first, such as a magnesium alloy substrate formed by injection molding, and then a plastic substrate is formed on the magnesium alloy substrate by injection molding, to form a complete shell structure.

[0056] Among them, the printed circuit board is installed in the shell 220, and the printed circuit board can be a mainboard of the electronic device 10, and one, two or more of the motor, microphone, speaker, earphone interface, universal serial bus interface, camera, distance sensor, ambient light sensor, receiver and processor and the like can be integrated on the printed circuit board.

[0057] The battery cover is connected with the middle frame 210. For example, the battery cover can be attached to the middle frame by an adhesive such as double-sided tape to achieve connection with the middle frame 210. The battery cover is used to seal the electronic devices and functional components of the electronic device 10 inside the electronic device 10 together with the middle frame 210 and the display screen 230 to form a protective effect on the electronic devices and functional components of the electronic device 10. It can be understood that the battery cover can be integrally formed, and the material of the battery cover can include metal, plastic, ceramic, etc.

[0058] The middle frame 210 can be a thin plate or sheet structure, or a hollow frame structure. The middle frame 210 is used to provide support for the electronic devices or functional components in the electronic device 10 to mount the electronic devices and functional components of the electronic device 10 together. For example, the middle frame 210 can be provided with grooves, protrusions, through holes, etc. to facilitate the mounting of the electronic devices or functional components of the electronic device 10.

[0059] In some embodiments, the middle frame 210 can be made of a metal material, or can be made of a non-metal material such as plastic. When the middle frame 210 is a metal middle frame, the middle frame 210 can be modified to form an antenna radiator that can radiate signals outward. The antenna radiator can not only radiate signals outward, but also receive radio frequency signals transmitted by other external devices. When the middle frame 210 is a non-metal middle frame, an antenna radiator can be provided on the inner side of the middle frame 210, that is, the side of the middle frame 210 facing the inside of the main body 200, to achieve the transmission and reception of radio frequency signals. For example, an LDS (Laser-Direct-structuring) antenna, a patch antenna, etc. can be provided on the inner side of the middle frame 210.

[0060] In some embodiments, the wearing part 100 can be made of a metal material and / or a non-metal material. For example, the wearing part 100 can be externally provided with a non-metal material such as plastic or leather, and a flexible metal material can be provided inside the wearing part 100, which can be used to form an antenna radiator. The wearing part 100 can be provided with an antenna radiator, which can be used to receive and transmit radio frequency signals of different signal types, and can also be used to form a MIMO (Multiple-Input Multiple-Output) antenna system, thereby effectively decomposing a communication link into many parallel sub-channels, thereby greatly improving the channel capacity to enhance the communication performance of the electronic device.

[0061] The above-mentioned radio frequency signal (RF-Radio Frequency signal) refers to a modulated electromagnetic wave with a certain transmission frequency. The radio frequency signal usually includes a long-term evolution LTE signal, a 5G radio frequency signal, a Wi-Fi radio frequency signal, and a GPS radio frequency signal, etc.

[0062] The long-term evolution LTE signal is a long-term evolution LTE signal transmitted based on the UMTS (Universal Mobile Telecommunications System) technical standard formulated by the 3GPP (The 3rd Generation Partnership Project) organization, which is used to access a wireless communication network to realize wireless communication. The long-term evolution LTE signal can be divided into a low-frequency radio frequency signal (Low band, abbreviated as LB), a middle-frequency radio frequency signal (Middle band, abbreviated as MB), and a high-frequency radio frequency signal (High band, abbreviated as HB), wherein the frequency range of the LB includes 700MHz to 960MHz, the frequency range of the MB includes 1710MHz to 2170MHz, and the frequency range of the HB includes 2300MHz to 2690MHz; the Wi-Fi signal is a signal wirelessly transmitted based on Wi-Fi technology, which is used to access a wireless local area network to realize network communication, and the Wi-Fi signal includes Wi-Fi signals with frequencies of 2.4GHz and 5GHz; the GPS signal (Global Positioning System) has a frequency range of 1.2GHz-1.6GHz; the 5G signal is used to access a wireless communication network to realize wireless communication, and the 5G signal at least includes 5G signals with frequency ranges of N78 (3.3GHz-3.6GHz) and N79 (4.8GHz-5GHz).

[0063] The above provides a detailed description of the antenna assembly and wearable electronic device provided by the embodiments of the present application. The principles and implementation modes of the present application are described by applying specific examples in this paper. The above description of the embodiments is only used to help understand the method and core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed; in view of the above, the content of the specification should not be understood as a limitation of the present application.

Claims

1. An antenna assembly, characterized by The antenna assembly comprises: a circuit board, on which a feeding point is arranged; a board-to-board connector arranged on the circuit board, the board-to-board connector and the circuit board being arranged along a first direction; a connector fixing member fixed on the circuit board, the connector fixing member comprising a recessed portion and a connecting portion, the recessed portion comprising a bottom wall and a side wall forming a receiving space, the board-to-board connector being located in the receiving space of the recessed portion, the connecting portion and the bottom wall being oppositely arranged along the first direction, the side wall being located between and connecting the connecting portion and the bottom wall, the connecting portion being fixedly connected with the feeding point on the circuit board, so that the connector fixing member serves as an antenna radiator and is used for transmitting and receiving radio frequency signals.

2. The antenna assembly of claim 1, wherein, A first through hole is arranged at the feeding point on the circuit board, and a second through hole is arranged on the connecting portion of the connector fixing member and faces the first through hole, the first through hole and the second through hole being fixedly connected by a fastener.

3. The antenna assembly of claim 2, wherein, The fastener comprises a screw, and the inner walls of the first through hole and the second through hole are provided with threads, and the screw is adapted to the threads.

4. The antenna assembly of claim 2, wherein, The fastener comprises a screw and a nut, and the screw is connected with the nut after passing through the first through hole and the second through hole.

5. The antenna assembly of claim 1, wherein, The feeding point on the circuit board comprises at least two, the connecting portion of the connector fixing member comprises at least two, and the feeding points on the circuit board are respectively located on both sides of the board-to-board connector.

6. The antenna assembly of claim 1, wherein, The recessed portion is filled with a buffer material, and the buffer material is arranged between the top of the recessed portion and the board-to-board connector.

7. The antenna assembly of claim 6, wherein, The buffer material comprises foam or silica gel material.

8. The antenna assembly of any of claims 1-7, wherein, The antenna assembly further comprises a main radiator, the main radiator being electrically connected with the connector fixing member, and the connector fixing member being electrically connected with a grounding point on the circuit board.

9. The antenna assembly of any of claims 1-7, wherein, The recessed portion and the connecting portion are integrally formed.

10. A wearable electronic device, comprising: The wearable electronic device comprises a main body portion and a wearable portion, the wearable portion being connected with the main body portion, the wearable portion being used for fixing the wearable electronic device to an external object, and the main body portion comprising the antenna assembly according to any one of claims 1-8.

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