Antenna components and electronic devices

Abstract

The embodiment of the present application provides an antenna assembly and an electronic device, the antenna assembly includes a soft board area and a hard board area, two antenna branches are respectively arranged at the two ends of the hard board area, the two antenna branches are respectively connected to two hard board area microstrip lines, one end of the soft board area is fixedly connected to the middle area of ​​the hard board area, the antenna feed point is arranged at the other end on the soft board area, two soft board area microstrip lines respectively connected to the hard board area microstrip lines are arranged in the soft board area, the other end of the soft board area microstrip line is connected to the antenna feed point, and the soft board area microstrip line and the hard board area microstrip line are used to adjust the impedance of the antenna feed point. The antenna assembly provided by the embodiment of the present application can receive signals through multiple antennas and calculate their arrival angles, further improving the accuracy of positioning and the reliability of the system.

Description

Technical Field

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

[0002] With the rapid development of smart devices and the Internet of Things (IoT), the market has placed higher demands on wireless communication technologies, including lower latency, higher data rates, and improved synchronization accuracy. Traditional wireless short-range communication technologies, such as Bluetooth and Wi-Fi, have limitations in latency, reliability, and synchronization accuracy, and cannot fully meet the needs of emerging applications. The development of ultra-miniaturized UWB (ultra-wideband) antennas aims to overcome the limitations of existing technologies and provide a new wireless short-range communication technology to meet the high-performance wireless communication needs of modern smart devices.

[0003] However, as the space for smart devices shrinks, conventional antennas and materials have relatively high dielectric constants and loss tangents, which can affect antenna performance, increase costs, and complicate processing and manufacturing. Furthermore, antenna structure limitations can result in the selected antenna failing to meet performance requirements. Furthermore, it is difficult to design an antenna with isotropic radiation perpendicular to the substrate in a three-dimensional structure, limiting the design and making it impossible to meet the demands of smart devices. Summary of the Invention

[0004] The embodiments of the present application provide an antenna assembly and an electronic device that adopt a dual-antenna system. Signals can be received through multiple antennas and their angles of arrival can be calculated, thereby further improving positioning accuracy and system reliability.

[0005] An embodiment of the present application provides an antenna assembly, including:

[0006] A hard board area, wherein two antenna branches are respectively provided at both ends of the hard board area, and the two antenna branches are respectively connected to two hard board area microstrip lines;

[0007] A soft board area, one end of the soft board area is fixedly connected to the middle area of ​​the hard board area, the antenna feed point is set at the other end of the soft board area, two soft board area microstrip lines respectively connected to the hard board area microstrip line are set in the soft board area, the other end of the soft board area microstrip line is connected to the antenna feed point, and the soft board area microstrip line and the hard board area microstrip line are used to adjust the impedance of the antenna feed point.

[0008] Optionally, the flexible board area further includes an impedance branch, the flexible board area microstrip line is connected to the antenna feed point via the impedance branch, and the impedance branch is used to adjust isolation and impedance.

[0009] Optionally, the flexible board area further includes a board-to-board connector, and the flexible board area is connected to the device mainboard via the board-to-board connector.

[0010] Optionally, the hard board area further includes two coupling branches, and the two coupling branches are respectively arranged below the two antenna branches.

[0011] Optionally, the radiators of the two antenna branches extend in opposite directions, and the two coupling branches are arc-shaped.

[0012] Optionally, one side of the hard board area includes a notch, and an LED light is provided in the notch, and the LED light is used to turn on and off according to the anti-interference performance of the antenna assembly.

[0013] Optionally, at least one positioning hole is provided on the hard board area so as to fix the antenna assembly on the device mainboard through the positioning hole, and an isolation wall is provided around the hard board area, and the isolation wall serves as a ground plane.

[0014] Optionally, the material of the soft board area is modified polyimide or polytetrafluoroethylene or liquid crystal polymer with a dielectric constant of 3.0 and a loss factor of 0.001, and the hard board area and the soft board area are fixed by surface mounting or hot pressing welding.

[0015] Optionally, the antenna assembly is used to transmit and receive UWB signals, and the size of the antenna assembly is 26×9×2.5 mm.

[0016] An embodiment of the present application further provides an electronic device, comprising a housing and an antenna assembly, wherein the antenna assembly is located inside the housing and comprises:

[0017] A hard board area, wherein two antenna branches are respectively provided at both ends of the hard board area, and the two antenna branches are respectively connected to two hard board area microstrip lines;

[0018] A soft board area, one end of the soft board area is fixedly connected to the middle area of ​​the hard board area, the antenna feed point is set at the other end of the soft board area, two soft board area microstrip lines respectively connected to the hard board area microstrip line are set in the soft board area, the other end of the soft board area microstrip line is connected to the antenna feed point, and the soft board area microstrip line and the hard board area microstrip line are used to adjust the impedance of the antenna feed point.

[0019] The antenna assembly and electronic device provided in the embodiments of the present application include a flexible board area and a rigid board area. Two antenna branches are provided at each end of the rigid board area, and the two antenna branches are respectively connected to two rigid board area microstrip lines. One end of the flexible board area is fixedly connected to the middle area of ​​the rigid board area. The antenna feed point is provided at the other end of the flexible board area. Two flexible board area microstrip lines are provided in the flexible board area, respectively connected to the rigid board area microstrip lines. The other ends of the flexible board area microstrip lines are connected to the antenna feed point. The flexible board area microstrip lines and the rigid board area microstrip lines are used to adjust the impedance of the antenna feed point. The antenna assembly provided in the embodiments of the present application can receive signals and calculate their arrival angles through multiple antennas, further improving the accuracy of positioning and the reliability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0021] Figure 1 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application.

[0022] Figure 2 A schematic structural diagram of the antenna assembly provided in an embodiment of the present application.

[0023] Figure 3 Schematic diagram of the UWB device application scenario provided in the embodiment of the present application.

[0024] Figure 4 Another structural diagram of an electronic device provided in an embodiment of the present application.

[0025] Figure 5 A schematic diagram of the structure of the smart door lock provided in an embodiment of the present application.

[0026] Figure 6 A schematic structural diagram of a remote control provided in an embodiment of the present application. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0028] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of this application, "plurality" means two or more, unless otherwise specifically specified.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0030] The present invention provides a display screen assembly and an electronic device. Each of the embodiments is described in detail below. The display screen assembly can be provided in the electronic device, which can be a smartphone, tablet computer, or other device.

[0031] refer to Figure 1 , Figure 1 This is a schematic diagram of the first structure of the electronic device 10 provided in an embodiment of the present application.

[0032] The electronic device 10 includes a display screen 11 , a housing 12 , a circuit board 13 and a battery 14 .

[0033] The display screen 11 is provided on the housing 12 to form a display surface of the electronic device 10 for displaying images, text, and other information. The display screen 11 may include a liquid crystal display (LCD) or an organic light-emitting diode (OLED) display.

[0034] A cover plate may also be installed on the display screen 11 to cover the display screen 11. The cover plate may be a transparent glass cover plate so that the display screen can be transparent to the cover plate for display. In some embodiments, the cover plate may be a glass cover plate made of a material such as sapphire.

[0035] The display screen 11 may include a display area and a non-display area. The display area may be used to display the screen of the electronic device 10 or for user touch control. The top area of ​​the non-display area has openings for sound and light transmission, and the bottom area of ​​the non-display area may be provided with functional components such as a fingerprint module and touch buttons.

[0036] It should be noted that the structure of the display screen 11 is not limited to this. For example, the display screen 11 can be a full-screen or a special-shaped screen. It should also be noted that in some embodiments, the display screen 11 can also include no non-display area and be configured as a full-screen structure. Functional components such as the distance sensor and ambient light sensor can be located below the display screen or elsewhere. The cover plate is configured to fit the size of the display screen.

[0037] The housing 12 forms the outer contour of the electronic device 10, thereby accommodating the electronic components and functional components of the electronic device 10 and sealing and protecting the electronic components and functional components within the electronic device. For example, the camera, circuit board, and vibration motor of the electronic device 10 may all be disposed within the housing 12.

[0038] The housing 12 may include a middle frame and a back cover. The middle frame and back cover are combined to form the housing 12. The middle frame and back cover may form a storage space to accommodate components such as the circuit board 13, the display screen 11, and the battery 14. Furthermore, a cover plate may be fixed to the housing 12. The cover plate and the housing 12 form a sealed space to accommodate components such as the circuit board 13, the display screen 11, and the battery 14. In some embodiments, the cover plate is attached to the middle frame, and the back cover is attached to the middle frame. The cover plate and the back cover are located on opposite sides of the middle frame and are arranged relative to each other.

[0039] In some embodiments, the shell 12 may be a metal shell, such as a magnesium alloy, stainless steel or other metal. It should be noted that the material of the shell 12 in the embodiment of the present application is not limited thereto, and other methods may also be used, for example: the shell 12 may be a plastic shell. Another example: the shell 12 is a ceramic shell. Another example: the shell 12 may include a plastic part and a metal part, and the shell 12 may be a shell structure in which metal and plastic cooperate with each other. Specifically, the metal part may be formed first, such as forming a magnesium alloy substrate by injection molding, and then plastic is injection molded on the magnesium alloy substrate to form a plastic substrate, thereby forming a complete shell structure.

[0040] A circuit board 13 is disposed within the housing 12. The circuit board 13 may be the mainboard of the electronic device 10. The circuit board 13 may also integrate one or more functional components such as a processor, a camera, a headphone jack, an accelerometer, a gyroscope, and a motor. The display screen 11 may also be electrically connected to the circuit board 13, allowing the processor on the circuit board 13 to control the display screen 11.

[0041] In some embodiments, the circuit board 13 can be fixed within the housing 12. Specifically, the circuit board 13 can be screwed to the middle frame using screws, or it can be snap-fitted to the middle frame using a clip. It should be noted that the specific method of fixing the circuit board 13 to the middle frame in the embodiment of the present application is not limited to this, and other methods can also be used, such as a combination of clips and screws.

[0042] A battery 14 is disposed within the housing 12 and is electrically connected to the circuit board 13 so that the battery 14 can power the electronic device 10. A power management circuit may be provided on the circuit board 13. The power management circuit is configured to distribute the voltage provided by the battery 14 to the various electronic components within the electronic device 10.

[0043] The electronic device 10 is further provided with an antenna assembly. The antenna assembly can be used to implement the wireless communication function of the electronic device 10. For example, the antenna assembly can be used for ultra-wide band (UWB) communication function. The antenna assembly is arranged inside the housing 20 of the electronic device 10. It can be understood that some components of the antenna assembly can be integrated on the circuit board 13 inside the housing 12, for example, the signal processing chip and signal processing circuit in the antenna assembly can be integrated on the circuit board 13. In addition, some components of the antenna assembly can also be directly arranged inside the housing 12. For example, the antenna of the antenna assembly can be directly arranged inside the housing 12.

[0044] See also Figure 2 , Figure 2 This is a schematic diagram of the first structure of an antenna assembly provided in an embodiment of the present application. The antenna assembly may include a hard board area 100 and a soft board area 200. Two antenna branches 101 and 201 are respectively provided at the left and right ends of the hard board area 100. The two antenna branches 101 and 201 are respectively connected to two hard board area microstrip lines 103 and 203. One end of the soft board area 200 is fixedly connected to the middle area of ​​the hard board area 100. The antenna feed point is provided at the other end of the soft board area 200. Two soft board area microstrip lines 104 and 204 are respectively connected to the hard board area microstrip lines 103 and 203 in the soft board area 200. The other ends of the soft board area microstrip lines 104 and 204 are connected to the antenna feed point. The soft board area microstrip lines 104 and 204 and the hard board area microstrip lines 104 and 204 are used to adjust the impedance of the antenna feed point. For example, by calculating and designing different lengths or materials to perform impedance transformation, the impedance of the antenna feed point can be adjusted so that the above impedance is 50 ohms.

[0045] In one embodiment, the flexible circuit board area 100 may further include an impedance branch 106, through which the flexible circuit board microstrip lines 104 and 204 are connected to the antenna feed point. Impedance branch 106 can be used to adjust isolation and impedance. Impedance branch 106 can significantly improve isolation, achieving a minimum of -45dB in practical applications, far below the standard -20dB. The components of impedance branch 106 can be components, filters, or tuning elements, such as resistors, capacitors, or inductors. Further details are not provided in this application.

[0046] In one embodiment, the flexible board area 100 may further include a board-to-board connector 107 , so that the flexible board area 100 can be connected to a device mainboard via the board-to-board connector 107 .

[0047] In one embodiment, the rigid board area 100 may further include two coupling branches 102 and 202 disposed on the left and right sides, respectively. The two coupling branches are disposed below the two antenna branches, respectively. For example, the coupling branch 102 is disposed below the antenna branch 101, and the coupling branch 202 is disposed below the antenna branch 201. The radiators of the two antenna branches 101 and 201 may extend in opposite directions, respectively, and the two coupling branches 102 and 202 may be arc-shaped. Please continue to refer to Figure 1 A first coupling gap may be formed between the radiator of antenna branch 101 and coupling branch 102, and a second coupling gap may be formed between the radiator of antenna branch 201 and coupling branch 202. The two antenna branches 101 and 201 may be patch antennas, which may be fixed to the rigid board area 110 by bonding, embedding, welding, or the like.

[0048] In one embodiment, one side of the hard board area 100 further includes a notch, in which an LED light 105 can be embedded. The LED light 105 can be used to reflect the anti-interference performance of the antenna assembly.

[0049] In one embodiment, at least one positioning hole may be provided on the hard board area 100 so as to fix the antenna assembly on the main board of the device through the positioning hole, and an isolation wall may be provided on the periphery of the hard board area 100, and the isolation wall serves as a ground plane. Specifically, the isolation wall may include at least one isolation hole, such as an isolation hole located on the right side of the isolation wall and an isolation hole located on the left side of the isolation wall. In addition, the isolation wall also includes a grounding point so that the patch antennas 101 and 201 are connected to the ground plane through the grounding point. It should be noted that the ground plane can be regarded as the reference ground of the entire machine. The grounding point can also be fixedly connected to the reference ground of the entire machine by welding, and the grounding point can also be fixedly connected to the reference ground of the entire machine by screwing and locking. In other embodiments, the grounding point can also be connected to the reference ground of the entire machine through a connecting line, and this application does not further limit this.

[0050] In one embodiment, the flexible board area 200 can be made of a material with a relatively low DK (dielectric constant) and DF (dissipation factor), such as a modified polyimide or polytetrafluoroethylene or liquid crystal polymer with a dielectric constant of 3.0 and a dissipation factor of 0.001. The rigid board area 100 can be made of a high-frequency material with a relatively low dielectric constant and dissipation factor. The rigid board area 100 and the flexible board area 200 can be fixed by surface mounting or hot pressing welding. In this embodiment, the MPI flexible board is used to reduce the loss of its circuit, improve the performance of the antenna, and can also be integrated with surrounding devices such as LED lights, thereby improving space utilization from a design perspective.

[0051] The antenna assembly in this embodiment can be used to transmit and receive UWB signals. UWB signals have good anti-interference performance and can stably transmit data in complex environments. Through the UWB antenna design scheme of the multi-layer interlayer structure interconnection technology, each patch antenna is formed on the hard board area 100. The transmission line for connecting the PATCH antenna to the UWB communication circuit can be implemented on the MPI circuit board of the HTCP process. The above-mentioned antenna assembly can enable electronic devices to perform positioning operations by using the UWB antenna structure, thereby accurately measuring the position of another electronic device (which can be a base station or a tag). Figure 3 As shown, the device 10 integrating the above-mentioned UWB antenna assembly can be connected with other devices for positioning, including but not limited to advertising screens and or smart screens, remote controls, smart bracelets, smart rings, smart door locks, smart homes, etc. Figure 3 The remote control 20 and the smart screen 30, etc., are not further limited in this embodiment.

[0052] The UWB antenna provided in this embodiment utilizes an ultra-compact antenna design, measuring 26 × 9 × 2.5 mm. This optimizes the antenna by utilizing optimal clearance within the antenna area, simplifies assembly, avoids the consistency issues associated with complex antenna assembly, and reduces costs. It should be noted that the aforementioned UWB antenna utilizes a variety of dynamically deformable materials and structural designs to adjust the antenna's size and frequency to accommodate varying needs. This allows for integration into small devices with a smaller, thinner design while maintaining high performance.

[0053] In one embodiment, the multi-antenna mutual positioning technology uses a complex signal processing algorithm to accurately calculate the angle of arrival of the signal and extract useful information from the noise to achieve high-precision positioning. For example, through the Kalman filter algorithm, the state vector is used to represent the state of the system, including position, speed, etc. Kalman filtering can be integrated with other sensor data such as IMU (inertial measurement unit) to improve the overall positioning accuracy and stability by integrating multiple positioning technologies. In addition, Kalman filtering can also be used to process NLOS (non-line-of-sight) errors in UWB systems, further improving positioning accuracy.

[0054] As can be seen from the above, the antenna assembly provided in the embodiment of the present application includes a soft board area and a hard board area. Two antenna branches are respectively provided at both ends of the hard board area. The two antenna branches are respectively connected to two hard board area microstrip lines. One end of the soft board area is fixedly connected to the middle area of ​​the hard board area. The antenna feed point is provided at the other end of the soft board area. Two soft board area microstrip lines are provided in the soft board area, respectively connected to the hard board area microstrip lines. The other end of the soft board area microstrip line is connected to the antenna feed point. The soft board area microstrip line and the hard board area microstrip line are used to adjust the impedance of the antenna feed point. The antenna assembly provided in the embodiment of the present application can receive signals and calculate their arrival angles through multiple antennas, further improving the accuracy of positioning and the reliability of the system.

[0055] An embodiment of the present invention further provides an electronic device, including a housing and an antenna assembly, wherein the antenna assembly is located inside the housing and includes:

[0056] A hard board area, wherein two antenna branches are respectively provided at both ends of the hard board area, and the two antenna branches are respectively connected to two hard board area microstrip lines;

[0057] A soft board area, one end of the soft board area is fixedly connected to the middle area of ​​the hard board area, the antenna feed point is set at the other end of the soft board area, two soft board area microstrip lines respectively connected to the hard board area microstrip line are set in the soft board area, the other end of the soft board area microstrip line is connected to the antenna feed point, and the soft board area microstrip line and the hard board area microstrip line are used to adjust the impedance of the antenna feed point.

[0058] In one embodiment, the housing includes a metal middle frame and a bottom shell. The metal middle frame surrounds the bottom shell to form a receiving space. The antenna assembly A is a UWB antenna that can be disposed in the receiving space. Please refer to Figure 4 The storage space of the electronic device may also include an LTE antenna B, a 5G antenna C, an NFC antenna F, at least one camera such as a wide-angle camera D and a telephoto camera E, and a metal embedded area G.

[0059] In this embodiment, the LTE antenna B can be used to transmit and receive 4G (the 4th generation mobile communication technology) radio frequency signals, and the 5G antenna C can be used to transmit and receive 5G (5th generation mobile networks or 5th generation wireless systems) radio frequency signals. The 4G frequency bands may include B1 / B2 / B3 / B4 / B5 / B6 / B7 / B8 / B9 / B12 / B17 / B18 / B19 / B20 / B26 / B28, etc., and the 5G frequency bands may include N1 / N3 / N5 / N8 / N28 / N77 / N78 / N79, etc.

[0060] Furthermore, the NFC antenna F may be, for example, an NFC (Near Field Communication) chip, which can provide a differential excitation current. In addition, a non-NFC chip, such as a cellular communication chip, a Wi-Fi chip, or a GPS (Global Positioning System) chip, may also be included to provide a non-NFC excitation current. The non-NFC excitation current may include one of a cellular network signal, a Wi-Fi signal, and a GPS signal, which is not further limited in this embodiment.

[0061] In one embodiment, the electronic device may further include a carrier plate, which is connected to the metal middle frame and serves as a ground plane, and a gap is formed between the radiator inside the metal middle frame and the carrier plate.

[0062] In one embodiment, the electronic device further includes a battery and a circuit board, wherein the battery and the circuit board are both disposed on the carrier board, and the signal source is disposed on the circuit board.

[0063] In addition, it can be understood that the material of the above-mentioned middle frame can include metal, for example, when it includes metal such as magnesium alloy, aluminum alloy, etc., the metal middle frame can be used to form a system ground, which is the entire ground of the electronic device.

[0064] In this embodiment, the electronic device may be a mobile phone, a tablet computer, a laptop computer, a personal digital assistant (PDA), a mobile internet device (MID), a wearable device, etc.

[0065] In one embodiment, please continue to refer to Figure 5 , where the electronic device with the integrated antenna component can be a smart door lock 40, which integrates the above-mentioned UWB antenna component 41, so it can be controlled by another UWB device (such as a mobile phone). The user does not need to touch the door lock with the mobile phone. As long as the mobile phone is within the specified range of the door lock, the door can be opened automatically. In addition, the above-mentioned smart door lock 40 also includes a password input interface 41, a fingerprint recognition interface 42 and a mechanical keyhole 43. The UWB smart door lock is designed with security in mind. Only users who have been authenticated by the homeowner can register, and after each unlocking, the user will receive a notification to understand the entry and exit situation. In addition, the smart door lock 40 with a UWB antenna component is also compatible with the cloud system. If a device such as a smartphone is lost, the user can delete the digital key of the door lock to increase security.

[0066] Specifically, the door lock application needs to be connected to ANT1 and ANT2 of the UWB antenna assembly through the two antennas in the hardware to achieve correct antenna installation and configuration, and then through the antenna module and module connection configuration, fixed parameter quick configuration, custom parameter configuration and other steps, and can be configured using AT commands. When connected to a mobile phone, the smart door lock 40 with a UWB antenna assembly supports direct connection with devices such as mobile phones (must have UWB function phones), and can use a door lock-specific APP to quickly pair and bind the mobile phone with the door lock. It should be noted that UWB technology has the advantages of low system complexity, low power spectrum density of the transmitted signal, insensitivity to channel fading, low interception capability, and high positioning accuracy. It is especially suitable for high-speed wireless access in dense multipath places such as indoors.

[0067] In another embodiment, please refer to Figure 6, wherein the electronic device with the integrated antenna component can be a remote control 20, which integrates the above-mentioned UWB antenna component. The UWB antenna can form an air mouse through the IMU and UWB fusion positioning, allowing users to use the remote control to perform operations such as finger pressing, sliding, and long pressing on the smart screen, and obtain the same precise touch experience as a mobile phone / tablet. The remote control also supports a variety of gesture operations, such as sliding, tapping, dragging, circling, jumping, etc., which can be used to control the TV UI in the air, turning the TV into a "giant screen mobile phone". By combining the high-precision distance measurement of UWB with the real-time motion information of IMU, the accuracy and response speed of the positioning system can be improved. IMU data can be used to correct the measurement error and drift of UWB. Fusion algorithms usually use extended Kalman filtering (EKF), unscented Kalman filtering (UKF) or other filtering algorithms to integrate UWB and IMU data. These algorithms can handle the uncertainty and noise of sensor data and provide more accurate state estimation.

[0068] The above is the antenna assembly and electronic device provided in the embodiments of the present application. The antenna assembly includes a soft board area and a hard board area. Two antenna branches are respectively provided at both ends of the hard board area. The two antenna branches are respectively connected to two hard board area microstrip lines. One end of the soft board area is fixedly connected to the middle area of ​​the hard board area. The antenna feed point is provided at the other end of the soft board area. Two soft board area microstrip lines are provided in the soft board area, respectively connected to the hard board area microstrip lines. The other end of the soft board area microstrip line is connected to the antenna feed point. The soft board area microstrip line and the hard board area microstrip line are used to adjust the impedance of the antenna feed point. The antenna assembly provided in the embodiments of the present application can receive signals and calculate their arrival angles through multiple antennas, further improving the accuracy of positioning and the reliability of the system.

[0069] The antenna assembly and electronic device provided in the embodiments of the present application are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is intended only to facilitate understanding of the present application. Furthermore, those skilled in the art will appreciate that variations in the specific implementation methods and scope of application may occur based on the concepts of the present application. In summary, the contents of this specification should not be construed as limiting the present application.

Claims

1. An antenna assembly, characterized in that: include: A hard board area, two antenna branches are respectively arranged at two ends of the hard board area, the two antenna branches are respectively connected to two hard board area microstrip lines, the hard board area also includes two coupling branches, the two coupling branches are respectively arranged below the two antenna branches, and the radiators of the two antenna branches respectively form a first coupling gap and a second coupling gap with the two coupling branches; A soft board area, one end of the soft board area is fixedly connected to the middle area of ​​the hard board area, an antenna feed point is arranged at the other end of the soft board area, two soft board area microstrip lines respectively connected to the hard board area microstrip line are arranged in the soft board area, the other end of the soft board area microstrip line is connected to the antenna feed point, and the soft board area microstrip line and the hard board area microstrip line are used to adjust the impedance of the antenna feed point.

2. The antenna assembly according to claim 1, characterized in that: The soft board area also includes an impedance branch, the soft board area microstrip line is connected to the antenna feeding point through the impedance branch, and the impedance branch is used to adjust the isolation and impedance.

3. The antenna assembly according to claim 1, characterized in that: The flexible board area also includes a board-to-board connector, and the flexible board area is connected to the device mainboard through the board-to-board connector.

4. The antenna assembly according to claim 1, characterized in that: The radiators of the two antenna branches extend in opposite directions respectively, and the two coupling branches are in arc shape.

5. The antenna assembly according to claim 1, characterized in that: One side of the hard board area includes a notch, in which an LED light is arranged, and the LED light is used to light up and down according to the anti-interference performance of the antenna assembly.

6. The antenna assembly according to claim 1, characterized in that: At least one positioning hole is arranged on the hard board area, so as to fix the antenna assembly on the device mainboard through the positioning hole, and an isolation wall is arranged on the periphery of the hard board area, and the isolation wall serves as a ground plane.

7. The antenna assembly according to any one of claims 1 to 6, characterized in that: The material of the soft board area is improved polyimide or polytetrafluoroethylene or liquid crystal polymer with a dielectric constant of 3.0 and a loss factor of 0.

001. The hard board area and the soft board area are fixed by surface mounting or hot pressing welding.

8. The antenna assembly according to any one of claims 1 to 6, characterized in that: The antenna assembly is used for transmitting and receiving UWB signals, and the size of the antenna assembly is 26×9×2.5 mm.

9. An electronic device, characterized in that: The electronic device comprises a housing and an antenna assembly, wherein the antenna assembly is located inside the housing, and the antenna assembly comprises: A hard board area, two antenna branches are respectively arranged at two ends of the hard board area, the two antenna branches are respectively connected to two hard board area microstrip lines, the hard board area also includes two coupling branches, the two coupling branches are respectively arranged below the two antenna branches, and the radiators of the two antenna branches respectively form a first coupling gap and a second coupling gap with the two coupling branches; A soft board area, one end of the soft board area is fixedly connected to the middle area of ​​the hard board area, an antenna feed point is arranged at the other end of the soft board area, two soft board area microstrip lines respectively connected to the hard board area microstrip line are arranged in the soft board area, the other end of the soft board area microstrip line is connected to the antenna feed point, and the soft board area microstrip line and the hard board area microstrip line are used to adjust the impedance of the antenna feed point.

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