Antenna system, antenna box and vehicle

Abstract

The utility model provides an antenna system, an antenna box and a vehicle. The antenna system comprises a first antenna, a second antenna, a third antenna, a first partition plate, a second partition plate and a metal base, the first antenna, the second antenna and the third antenna are sequentially arranged on the metal base, the first antenna is used for communication based on the first communication technology, the second antenna is used for communication based on the first communication technology and the second communication technology, and the third antenna is used for communication based on the third communication technology; the first partition plate is arranged between the first antenna and the second antenna and is used for improving the isolation degree of the first antenna and the second antenna; the second partition plate is arranged between the second antenna and the third antenna and used for improving the isolation degree of the second antenna and the third antenna. When part or all of the communication technologies are used at the same time, the antenna system can reduce the interference between the antennas corresponding to the communication technologies.

Description

Technical Field

[0001] This application relates to the field of antennas, and more particularly, to an antenna system, an antenna box, and a vehicle. Background Art

[0002] With the widespread use of intelligent vehicles in daily life, users expect intelligent vehicles and their related devices to bring a more comfortable intelligent experience. Against this background, in-vehicle games are increasingly popular among users. When playing in-vehicle games, users can connect the game controller to the vehicle head unit through the NearLink technology.

[0003] However, when using the NearLink technology to connect the game controller and the vehicle head unit, if the Bluetooth (BT) function and / or the wireless fidelity (WiFi) function in the vehicle are used simultaneously, it may cause certain interference to the NearLink connection, thereby affecting the user's gaming experience in the game. Correspondingly, the NearLink connection may also cause certain interference to the Bluetooth function and / or the WiFi function, resulting in delays, lags, or even disconnections when the vehicle uses the Bluetooth connection or the WiFi connection to transmit data. Summary of the Utility Model

[0004] This application provides an antenna system, an antenna box, and a vehicle. The antenna system integrates multiple communication technologies and can reduce the interference between the antennas corresponding to the respective communication technologies when some or all of the above communication technologies are used simultaneously. When the antenna system is applied to a vehicle, it enables high-quality data transmission between the vehicle and external devices.

[0005] In a first aspect, an antenna system is provided. The system includes: a first antenna, a second antenna, a third antenna, a first partition, a second partition, and a metal base; the first antenna, the second antenna, and the third antenna are sequentially arranged on the metal base. The first antenna is used for communication based on a first communication technology, the second antenna is used for communication based on the first communication technology and a second communication technology, and the third antenna is used for communication based on a third communication technology; the first partition is arranged between the first antenna and the second antenna, and the first partition is used to improve the isolation between the first antenna and the second antenna; the second partition is arranged between the second antenna and the third antenna, and the second partition is used to improve the isolation between the second antenna and the third antenna.

[0006] In a possible implementation, the metal base can be made of stainless steel material. Since stainless steel material has good corrosion resistance and high mechanical strength, it can improve the service life of the metal base. Functionally, the metal base can serve as the metal ground of the antenna system, which can play a good role in conduction. Structurally, the metal base can play a role in supporting other components in the antenna system.

[0007] In a possible implementation, the surfaces of the first partition and / or the second partition can be thickened to form a wavy shape or a hollowed-out (e.g., serrated edge) shape.

[0008] In the embodiments of the present application, an antenna system is designed. This antenna system integrates multiple communication technologies. When some or all of the above communication technologies are used simultaneously, it can reduce the interference between the antennas corresponding to each communication technology. When this antenna system is applied to a vehicle, it can enable the vehicle and external devices to achieve high-quality data transmission. When the external device is a game controller, this antenna system can establish a communication connection with the game controller, thereby enabling users to obtain a more immersive gaming experience in the game.

[0009] Combined with the first aspect, in some implementations of the first aspect, the first antenna is arranged along the first direction, the second antenna is arranged along the second direction, the third antenna is arranged along the third direction. The second direction is the direction corresponding to the length of the metal base. The included angle between the first direction and the second direction is a first preset value, and the included angle between the third direction and the second direction is a second preset value.

[0010] In the embodiments of the present application, by setting the placement angles of the first antenna, the second antenna, and the third antenna, the isolation degree between the antennas can be further optimized. In this way, when the game controller establishes a communication connection with the antenna system, it can enable the game controller and the antenna system to achieve high-quality data transmission.

[0011] Combined with the first aspect, in some implementations of the first aspect, the first preset value is greater than or equal to 40 degrees and less than or equal to 50 degrees, and the second preset value is greater than or equal to 10 degrees and less than or equal to 20 degrees.

[0012] Combined with the first aspect, in some implementations of the first aspect, the system further includes: a reflector; the reflector is connected to the metal base, and the included angle between the reflector and the metal base is a third preset value; the first partition is connected to the metal base and the reflector, and the second partition is connected to the metal base and the reflector.

[0013] In the embodiments of the present application, a reflector is provided in the antenna system. Since the reflector is connected to the metal base, the first partition, and the second partition, the reflector can play a role in fixing the antenna system. In this way, it can be ensured that the antenna system is not easily damaged and the service life of the antenna system can be extended.

[0014] In combination with the first aspect, in some implementation manners of the first aspect, the first partition includes M holes or M openings, and the M holes or the M openings are used to improve the isolation between the first antenna and the second antenna, where M is a positive integer; the second partition includes N holes or N openings, and the N holes or the N openings are used to improve the isolation between the second antenna and the third antenna, where N is a positive integer.

[0015] In the embodiments of the present application, by providing a plurality of holes or openings on the first partition and / or the second partition, the isolation between antennas can be further optimized. In this way, when the game handle and the antenna system establish a connection based on the third communication technology and the communication connections based on the first communication technology and the second communication technology in the antenna system are used simultaneously, the interference between antennas can be further reduced.

[0016] In combination with the first aspect, in some implementation manners of the first aspect, the antenna system is applied to a vehicle, and a plurality of through holes or a plurality of grooves are further provided on the metal base, and a plurality of cables connected to the first antenna, the second antenna, and the third antenna are connected to the vehicle head unit through the plurality of through holes or the plurality of grooves.

[0017] In a possible implementation manner, a plurality of cables can be connected to the first antenna, the second antenna, and the second antenna through welding technology.

[0018] In the embodiments of the present application, when the antenna system is applied to a vehicle, a plurality of cables connected to the first antenna, the second antenna, and the third antenna can be connected to the vehicle head unit through a plurality of through holes or a plurality of grooves, so as to facilitate each antenna to transmit signals to the vehicle head unit through the cables.

[0019] In combination with the first aspect, in some implementation manners of the first aspect, a plurality of nested nuts are further provided on the metal base, and the plurality of nested nuts are used to accommodate a plurality of screws, so that the metal base is connected to the housing of the vehicle head unit.

[0020] In a possible implementation manner, the height of the plurality of nested nuts can be close to the height of each antenna; a certain interval can be left between the metal base and the housing of the vehicle head unit.

[0021] In the embodiments of the present application, the antenna system can be fixed to the housing of the vehicle head unit through a plurality of nested nuts and a plurality of screws, thereby ensuring that the vehicle can communicate with external devices through the antenna system.

[0022] In combination with the first aspect, in some implementations of the first aspect, the third antenna can also be used for communication implemented based on the second communication technology.

[0023] In combination with the first aspect, in some implementations of the first aspect, the first communication technology is Wi-Fi technology, the second communication technology is Bluetooth technology, and the third communication technology is SparkLink technology.

[0024] In combination with the first aspect, in some implementations of the first aspect, the first partition and / or the second partition are composed of polycarbonate and acrylonitrile-butadiene-styrene copolymer.

[0025] In the embodiments of the present application, the first partition and the second partition are composed of special composite materials, which ensure that the first partition and / or the second partition can adapt to the external environmental temperature of the antenna system and can also reduce the manufacturing cost of the antenna system.

[0026] In a second aspect, an antenna box is provided, including: a housing and an antenna system as in any one of the implementations of the first aspect above, and the housing is used to protect the antenna system.

[0027] In a third aspect, a vehicle is provided, including the antenna system as in any one of the implementations of the first aspect above, or including the antenna box in the second aspect above. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a functional schematic diagram of a vehicle provided by the present application;

[0029] Figure 2 is a schematic structural diagram of an antenna system provided by an embodiment of the present application;

[0030] Figure 3 is a schematic diagram of the connection between a radio frequency cable and an antenna pin provided by an embodiment of the present application;

[0031] Figure 4 is a schematic diagram of a radio frequency cable provided by an embodiment of the present application;

[0032] Figure 5 is a schematic diagram of the connection between a radio frequency cable and a vehicle head unit provided by an embodiment of the present application;

[0033] Figure 6 is a schematic diagram of a partition structure provided by an embodiment of the present application;

[0034] Figure 7 is a three-dimensional schematic diagram of the connection between an antenna box and a vehicle head unit housing provided by an embodiment of the present application;

[0035] Figure 8 It is a top view and a side view of the connection between an antenna box and a vehicle head unit housing provided by an embodiment of the present application;

[0036] Figure 9 It is a schematic diagram of the connection between an antenna box and a printed circuit board (PCB) of a vehicle head unit provided by an embodiment of the present application. Detailed implementation manners

[0037] Next, the technical solutions in the present application will be described with reference to the accompanying drawings.

[0038] In the description of the embodiments of the present application, unless otherwise specified, " / " means "or". For example, A / B may mean A or B; herein, "and / or" is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B may mean: A exists alone, A and B exist simultaneously, and B exists alone. In the present application, "at least one" means one or more, and "a plurality" means two or more. "At least one (item)" or its similar expression means any combination of these items, including any combination of single item (item) or plural items (items). For example, at least one (item) of a, b, or c may mean: a, b, c, a - b, a - c, b - c, or a - b - c, where a, b, c may be single or multiple.

[0039] In the embodiments of the present application, prefix words such as "first" and "second" are only used to distinguish different described objects, and have no restrictive effect on the position, order, priority, quantity, content, etc. of the described objects. The use of ordinal numbers and other prefix words for distinguishing described objects in the embodiments of the present application does not constitute a limitation on the described objects. For the description of the described objects, refer to the description in the claims or the context of the embodiments. It should not be construed as an unnecessary limitation due to the use of such prefix words.

[0040] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings.

[0041] Figure 1 It is a functional schematic diagram of a vehicle 100 provided by an embodiment of the present application.

[0042] The vehicle 100 may include multiple subsystems. For example, a perception system 120, a computing platform 130, and an antenna system 140. Optionally, the vehicle 100 may include more or fewer subsystems, and each subsystem may include one or more components. Additionally, each subsystem and component of the vehicle 100 may be interconnected by wired or wireless means.

[0043] The perception system 120 may include several types of sensors for sensing information about the environment around the vehicle 100. For example, the perception system 120 may include a positioning system, which may be a global positioning system (GPS), or a Beidou system or other positioning systems. The perception system 120 may include one or more of an inertial measurement unit (IMU), lidar, millimeter-wave radar, ultrasonic radar, and a camera device.

[0044] Some or all of the functions of the vehicle 100 may be controlled by the computing platform 130. The computing platform 130 may include processors 131 to 13n (n is a positive integer). A processor is a circuit with the ability to process signals. In one implementation, the processor may be a circuit with the ability to read and execute instructions, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a type of microprocessor), or a digital signal processor (DSP), etc.; in another implementation, the processor may achieve certain functions through the logical relationship of a hardware circuit, and the logical relationship of this hardware circuit is fixed or can be reconfigured. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document to implement the configuration of the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units. In addition, the processor may also be a hardware circuit designed for artificial intelligence, which can be understood as a type of ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc. In addition, the computing platform 130 may also include a memory for storing instructions, and some or all of the processors 131 to 13n may call the instructions in the memory to implement corresponding functions.

[0045] The computing platform 130 may control the functionality of the vehicle 100 based on input received from various subsystems (eg, the perception system 120). In some embodiments, the computing platform 130 may be used to provide control over many aspects of the vehicle 100 and its subsystems.

[0046] The antenna system 140 can receive and send radio signals to ensure that various wireless functions inside the vehicle operate normally and that the vehicle and external devices communicate normally.

[0047] Optionally, the above components are just an example, and in actual applications, the components in the above modules may be added or deleted according to actual needs.

[0048] The vehicle 100 in the present application may include: road vehicles, water vehicles, air vehicles, industrial equipment, agricultural equipment, or entertainment equipment, etc. For example, the vehicle 100 may be a vehicle (such as a commercial vehicle, a passenger car, a motorcycle, a flying car, a train, etc.), an industrial vehicle (such as a forklift, a trailer, a tractor, etc.), an engineering vehicle (such as an excavator, a bulldozer, a crane, etc.), agricultural equipment (such as a lawn mower, a harvester, etc.), amusement equipment, a toy vehicle, etc. The embodiment of the present application does not specifically limit the type of vehicle.

[0049] The following takes vehicle 100 as an example of a smart car to illustrate the technical problems to be solved by the present application and the technical solutions adopted.

[0050] As smart cars are widely used in daily life, users expect smart cars and related devices to bring a more comfortable and intelligent experience. In this context, in-car games are becoming more and more popular among users. During the in-car game experience, users can connect the game controller to the car computer through a wireless connection.

[0051] Currently, game controllers can be connected to the car computer using Bluetooth or 2.4G WiFi technology. However, there is a delay problem when the game controller is connected to the car computer via Bluetooth, which causes the user to experience a stuck operation during the game, thus affecting the user's gaming experience; although the 2.4G WiFi connection technology can achieve relatively good connection stability, it must be equipped with a receiver and can only achieve a one-to-one working mode (that is, the car computer can only communicate with one game controller), which will also bring many inconveniences to the user. To solve the above problems, the use of Star Flash technology to connect the game controller and the car computer can reduce the delay of the game controller in transmitting data and achieve a one-to-many working mode, so that users can have a more immersive gaming experience in the game.

[0052] However, when connecting a gamepad to a vehicle head unit using the SparkLink technology, if the Bluetooth function and / or Wi-Fi function in the vehicle are used simultaneously, it may cause certain interference to the SparkLink connection, thereby affecting the user's gaming experience in the game. Correspondingly, the SparkLink connection may also cause certain interference to the Bluetooth function and / or Wi-Fi function, resulting in delays, lags, or even disconnections when the vehicle uses Bluetooth connection and / or Wi-Fi connection to transmit data.

[0053] Embodiments of the present application provide an antenna system, an antenna box, and a vehicle. The antenna system integrates multiple communication technologies and can reduce interference between antennas corresponding to each communication technology when some or all of the above communication technologies are used simultaneously. When the antenna system is applied to a vehicle, it can enable high-quality data transmission between the vehicle and external devices.

[0054] In one embodiment, an antenna system is provided. The system includes: a first antenna, a second antenna, a third antenna, a first partition, a second partition, and a metal base; the first antenna, the second antenna, and the third antenna are sequentially arranged on the metal base. The first antenna is used for communication based on a first communication technology, the second antenna is used for communication based on the first communication technology and a second communication technology, and the third antenna is used for communication based on a third communication technology; the first partition is used to improve the isolation between the first antenna and the second antenna; the second partition is arranged between the second antenna and the third antenna, and the second partition is used to improve the isolation between the second antenna and the third antenna.

[0055] Exemplarily, the first communication technology may be Wi-Fi technology, the second communication technology may be Bluetooth technology, and the third communication technology may be SparkLink technology.

[0056] Optionally, the first antenna, the second antenna, and the third antenna may be set in a strip shape or a circular shape. Further optionally, the first antenna, the second antenna, and the third antenna may be planar inverted-F antennas (pifa). The pifa antenna uses a planar radiation element as the radiator and a large metal ground as the reflector, and has the advantages of compact structure, stable performance, and easy integration. When the height of the pifa antenna is fixed, the impedance matching can be improved and the antenna efficiency can be enhanced.

[0057] Optionally, the metal base may be made of stainless steel. Since stainless steel has good corrosion resistance and high mechanical strength, it can extend the service life of the metal base; the metal base can function as the metal ground of the antenna system, which can play a good conductive role, and the metal base can structurally support other components in the antenna system. Further optionally, the metal base can also be replaced by a base made of other metal materials that can play the same role.

[0058] Optionally, the first partition and / or the second partition are composed of polycarbonate and acrylonitrile-butadiene-styrene copolymer, so that the first partition and / or the second partition can adapt to the external environmental temperature of the antenna system and also reduce the manufacturing cost of the antenna system.

[0059] Optionally, the surface of the first partition and / or the second partition can be etched into a wavy shape or a serrated shape.

[0060] Optionally, the third antenna can also be used for communication implemented based on the second communication technology.

[0061] It should be noted that the first partition is used to improve the isolation between the first antenna and the second antenna, which can be understood as: after adding the first partition, the isolation between the first antenna and the second antenna is greater than that between the first antenna and the second antenna without adding the first partition. Correspondingly, the second partition is used to improve the isolation between the second antenna and the third antenna, which can be understood as: after adding the second partition, the isolation between the second antenna and the third antenna is greater than that between the second antenna and the third antenna without adding the second partition.

[0062] It should also be noted that since the second antenna can communicate based on the first communication technology and the second communication technology, when the first communication technology and the second communication technology are at the same frequency, the second antenna can support the application of one communication technology, or when the first communication technology and the second communication technology are at different frequencies, the second antenna can support the application of two communication technologies simultaneously.

[0063] It should also be noted that when the third communication technology is the StarFlash technology, the StarFlash connection can also be used as a Bluetooth connection. At this time, the StarFlash connection and the Bluetooth connection can be at different frequencies, that is to say, the third antenna can perform StarFlash communication or Bluetooth communication.

[0064] In the embodiments of the present application, an antenna system is designed. This antenna system integrates multiple communication technologies. When some or all of the above communication technologies are used simultaneously, it can reduce the interference between the antennas corresponding to each communication technology. When this antenna system is applied to a vehicle, it can enable high-quality data transmission between the vehicle and external devices. When the external device is a game controller, this antenna system can establish a communication connection with the game controller, so that users can obtain a more immersive gaming experience in the game.

[0065] In a possible implementation, the first antenna is arranged along a first direction, the second antenna is arranged along a second direction, the third antenna is arranged along a third direction, the second direction is the direction corresponding to the length of the metal base, the included angle between the first direction and the second direction is a first preset value, and the included angle between the third direction and the second direction is a second preset value.

[0066] Optionally, the first preset value and the second preset value can be any angles, and the first preset value and the second preset value can be the same or different. Further optionally, the first preset value is greater than or equal to 40 degrees and less than or equal to 50 degrees, and the second preset value is greater than or equal to 10 degrees and less than or equal to 20 degrees.

[0067] Optionally, in this implementation manner, the first antenna, the second antenna, and the third antenna can be set in a strip shape. The first antenna is arranged along the first direction, which can be understood as: the long side of the first antenna is arranged along the first direction. Similarly, the second antenna and the third antenna can be understood in a similar way.

[0068] In the embodiments of the present application, by setting the placement angles of the first antenna, the second antenna, and the third antenna, the isolation degree between the antennas can be further optimized. In this way, when the game handle establishes a communication connection with the antenna system, the game handle can achieve high-quality data transmission with the antenna system.

[0069] In a possible implementation manner, the antenna system further includes a reflector; the reflector is connected to the metal base, and the included angle between the reflector and the metal base is the third preset value; the first partition is connected to the metal base and the reflector, and the second partition is connected to the metal base and the reflector.

[0070] Exemplarily, the third preset value is 70 degrees.

[0071] In the embodiments of the present application, a reflector is provided in the antenna system. Since the reflector is connected to the metal base, the first partition, and the second partition, the reflector can play a role in fixing the antenna system. In this way, it can be ensured that the antenna system is not easily damaged and the service life of the antenna system can be extended.

[0072] In a possible implementation manner, the first partition includes M holes or M openings, and the M holes or M openings are used to improve the isolation degree between the first antenna and the second antenna, where M is a positive integer; the second partition includes N holes or N openings, and the N holes or N openings are used to improve the isolation degree between the second antenna and the third antenna, where N is a positive integer.

[0073] Exemplarily, M = N = 5.

[0074] In the embodiments of the present application, by providing a plurality of holes or openings on the first partition and / or the second partition, the isolation degree between the antennas can be further optimized. In this way, when the game handle establishes a connection based on the third communication technology with the antenna system and the communication connections based on the first communication technology and the second communication technology in the antenna system are used simultaneously, the interference between the antennas can be further reduced.

[0075] In a possible implementation, the antenna system can be applied to a vehicle. Multiple through-holes or multiple grooves are also provided on the metal base, and multiple cables connected to the first antenna, the second antenna, and the third antenna are connected to the vehicle's head unit through the multiple through-holes or the multiple grooves.

[0076] Optionally, the multiple cables can be RF cables for transmitting RF signals, and the multiple cables can be connected to the first antenna, the second antenna, and the third antenna through soldering technology.

[0077] For example, three through-holes are provided on the metal base, namely a first through-hole, a second through-hole, and a third through-hole. The first RF cable soldered to the first antenna can be connected to the head unit through the first through-hole, the second RF cable soldered to the second antenna can be connected to the head unit through the second through-hole, and the third RF cable soldered to the third antenna can be connected to the head unit through the third through-hole.

[0078] It should be noted that the relationship between the above RF cables and the through-holes is only an exemplary illustration, and those skilled in the art can reasonably change the corresponding relationship between the RF cables of the antenna and the through-holes based on actual needs.

[0079] In the embodiments of the present application, when the antenna system is applied to a vehicle, multiple cables connected to the first antenna, the second antenna, and the third antenna can be connected to the vehicle's head unit through multiple through-holes or multiple grooves, so that each antenna can transmit RF signals to the head unit through the multiple cables.

[0080] In a possible implementation, multiple nested nuts are also provided on the metal base, and the multiple nested nuts are used to accommodate multiple screws, so that the metal base is connected to the housing of the head unit.

[0081] Optionally, the height of the multiple nested nuts can be close to the height of each antenna; a certain gap (for example, a gap of 1 mm) can be left between the metal base and the head unit housing.

[0082] It should be noted that the above parameters and setting methods of the nested nuts are only exemplary illustrations, and those skilled in the art can reasonably change the parameters and setting methods of the nested nuts based on actual needs.

[0083] In the embodiments of the present application, the antenna system can be fixed to the housing of the head unit through multiple nested nuts and multiple screws, thereby ensuring that the vehicle can communicate with external devices through the antenna system.

[0084] Next, in conjunction with Figures 2 to 6 A structural example of the above antenna system will be introduced in detail.

[0085] As Figure 2As shown, the antenna system may include: Antenna 1, Antenna 2, Antenna 3, a first partition, a second partition, a reflector, and three RF cables. Antenna 1 may correspond to the first antenna, Antenna 3 may correspond to the second antenna, and Antenna 2 may correspond to the third antenna.

[0086] Among them, Antenna 1, Antenna 3, and Antenna 2 are arranged in sequence on the metal base. Antenna 1 is used for Wi-Fi communication, Antenna 3 is used for Bluetooth and Wi-Fi communication, and Antenna 2 is used for XingShan communication; that is to say, Antenna 2 is shared by Bluetooth and Wi-Fi functions, Antenna 1 is exclusively used by the Wi-Fi function, and Antenna 3 is exclusively used by the XingShan function. Setting Antenna 3 in the middle of Antenna 1 and Antenna 2 can make the Bluetooth function meet the power spectral density (PSD), reduce the interference caused by Bluetooth communication to other antennas, and also help improve the reliability of Bluetooth communication. Setting Antenna 2 on the far right of the metal base can ensure that the isolation of Antenna 2 reaches a good effect, that is, the influence of Antenna 1 and Antenna 3 on Antenna 2 is relatively small. Among them, Antenna 1 can be arranged along the first direction, Antenna 3 can be arranged along the second direction, and Antenna 2 can be arranged along the third direction. The second direction is the direction corresponding to the length of the metal base. The angle between the first direction and the second direction can be 45 degrees with a deviation of ±5 degrees, and the angle between the third direction and the second direction is 15 degrees with a deviation of ±5 degrees. The principle of the above antenna placement angle setting is: to make the antenna placement position angle follow the polarization orthogonality principle. Specifically, the antenna polarization isolation degree refers to the interference degree between one polarization signal and another polarization signal during transmission. For a wireless communication system, the polarization isolation degree is an important performance parameter that directly affects communication quality and reliability. In the same frequency band, if the polarization directions of two antennas are the same, the interference between them will be relatively serious, reducing the communication quality; on the contrary, if their polarization directions are different, the interference between them will be relatively small, and the communication quality can be guaranteed. If the angle between two antennas is relatively small, the interference between them will be relatively serious, thus affecting the stability of the polarization isolation degree. Therefore, when installing and debugging the antenna, attention needs to be paid to the angle selection of the antenna to minimize interference. Setting the angle between the first direction and the second direction to 45 degrees with a deviation of ±5 degrees and the angle between the third direction and the second direction to 15 degrees with a deviation of ±5 degrees can meet the above requirements.

[0087] Exemplarily, the operating frequency bands of each antenna in the antenna system in different scenarios may be as shown in Table 1 below.

[0088] Table 1

[0089] Antenna Scenario 1 Scenario 2 Antenna 1 WiFi (2.4G / 2.4G + 5G) WiFi (5G) Antenna 3 BT (2.4G) / WIFI (2.4G / 2.4G + 5G) WiFi (5G) + BT Antenna 2 StarFlash / BT StarFlash / BT

[0090] It should be noted that Figure 2The internal structure of the antenna system shown in Table 1 and the application scenarios of the antenna system are only for illustrative purposes. Those skilled in the art can change the internal structure of the antenna system or design the application scenarios of the antenna system according to actual needs. For example, the positions of Antenna 1 and Antenna 2 in the antenna system can be exchanged, etc.

[0091] The first partition is arranged between Antenna 1 and Antenna 3 to improve the isolation between Antenna 1 and Antenna 3, and the second partition is arranged between Antenna 3 and Antenna 2 to improve the isolation between Antenna 3 and Antenna 2. Among them, the sizes of the first partition and the second partition need to be adapted to the shape of the car radio. For example, the lengths of the first partition and the second partition are 37 - x1 mm, the widths are 31.5 - y1 mm, and the thickness is greater than or equal to 1 - z1 mm, where x1, y1, and z1 are greater than or equal to 0 and less than or equal to a preset value, such as 10 mm. It can be understood that in the embodiments of the present application, the preset values that x1, y1, and z1 are respectively less than or equal to can be the same or different. The first partition and the second partition can be made of non-metallic materials or composite materials. For example, the first partition and the second partition are made of polycarbonate or acrylonitrile-butadiene-styrene copolymer materials to meet the application scenarios in most environments (such as -40 degrees Celsius to 85 degrees Celsius).

[0092] The reflector can be connected to the metal base, and the included angle between the reflector and the metal base is the third preset value. On the other hand, the first partition can be connected to the metal base and the reflector, and the second partition can be connected to the metal base and the reflector. In this way, the setting of the reflector can play a good fixing role and extend the service life of the antennas inside the antenna system. The metal base can be made of stainless steel material because the stainless steel material has excellent performance, good performance under salt spray tests, and high material reliability.

[0093] Antenna 1, Antenna 3, and Antenna 2 can be respectively connected to three RF cables, and these three RF cables can be connected to the housing of the car radio through three through holes on the metal base; as Figure 3 shown, each RF cable can be welded to the corresponding antenna pin. The inner conductor core wire of the RF cable is connected to the antenna feed point, and the outer conductor of the cable is peeled and grounded. The lengths of the RF cables corresponding to Antenna 1, Antenna 3, and Antenna 2 can depend on the assembly scheme of the antenna system, and the lengths of the RF cables can be set with a certain redundancy (that is, the actual length of the RF cable is greater than the preset length), so that the RF cables are not easily broken, in order to improve the reliability of RF connection. Exemplarily, as Figure 4As shown, the lengths of the RF cables corresponding to antenna 1, antenna 3, and antenna 2 can be 42.5 mm, 41.5 mm, and 43.5 mm respectively. In addition, the three RF cables can be connected to the vehicle head unit through connectors, and the connectors can be soldered to the PCB board of the vehicle head unit to transmit RF signals. Exemplarily, the three RF cables can be snap-connected to the PCB board through connectors to achieve connection with the vehicle head unit; or, the three RF cables can also be connected to the vehicle head unit in a plug manner. It should be noted that the specific connection methods of different RF cables to the vehicle head unit can be different or the same, and this application does not make specific limitations.

[0094] The metal base can be connected to the vehicle head unit, and the connection method can be welding, riveting, snap-ring connection, bonding, or screw-nut connection. Exemplarily, in Figure 2 the metal base and the vehicle head unit adopt screw-nut connection, that is, four nested nuts are arranged on the metal base, and the four nested nuts can accommodate screws, so that the metal base is connected to the housing of the vehicle head unit. Among them, there can be a certain gap between the metal base and the vehicle head unit housing. Exemplarily, as Figure 5 shown, the heights of the first partition and the second partition can be set to 37.5 mm, the heights of the three antennas can be set to 7.7 mm, the heights of the four nested nuts can be close to the heights of the antennas, and the interval between the metal base and the vehicle head unit housing can be set to 1 mm.

[0095] Optionally, a plurality of holes or openings can be provided on the first partition and / or the second partition to optimize the isolation of each antenna. Specifically, the hole structure or opening structure on the first partition and / or the second partition can serve as a resonant structure between the antennas. This resonant structure can cause the signals radiated by the antennas on both sides of the partition to cancel each other out when the phases are opposite, thereby improving the isolation of the antennas on both sides of the partition.

[0096] Exemplarily, as Figure 6 shown, 3 openings are provided on the first partition and / or the second partition to further improve the isolation on both sides of the partition. Among them, the holes and sizes provided on the first partition and the second partition can be preset, and the upper limit of the preset value is to ensure the structural reliability of the first partition and the second partition.

[0097] Optionally, the surfaces of the first partition and / or the second partition can be thickened to form a wavy shape or a hollowed-out (for example, serrated edge) shape. Optionally, a plurality of positioning pin holes can be provided on the metal bottom plate to facilitate the fixing of the antenna system on the housing of the vehicle head unit.

[0098] The antenna system provided by the embodiments of the present application integrates the SparkLink, WiFi, and Bluetooth communication technologies. When some or all of the above communication technologies are used simultaneously, it can reduce the interference between the antennas corresponding to each communication technology. When this antenna system is applied to a vehicle, it enables the vehicle and external devices to achieve high-quality data transmission.

[0099] In one embodiment, an antenna box is provided. The antenna box includes a housing and the antenna system in the above embodiment, and the housing is used to protect the antenna system.

[0100] Optionally, the antenna box is applied to a vehicle and connected to the vehicle's head unit.

[0101] Exemplarily, as Figure 7 and Figure 8 shown, the antenna box and the housing of the head unit can be combined and installed on the vehicle. The length of the housing of the head unit and the antenna box can be 178 - x2 mm, the width of the housing of the head unit can be 182 - y2 mm, and the height of the housing of the head unit is 62 - z2 mm, where x2, y2, and z2 are greater than or equal to 0 and less than or equal to a preset value, for example, 5 mm. It can be understood that in the embodiments of the present application, the preset values that x2, y2, and z2 are less than or equal to respectively can be the same or different.

[0102] Exemplarily, as Figure 9 shown, the specific way of connecting the antenna box and the head unit can be: the antenna box can be connected to the head unit through multiple cables and connectors, and the connectors can be soldered on the PCB board of the head unit to transmit radio frequency signals. Exemplarily, the cables can be buckled on the PCB board through the connectors to achieve connection with the head unit; or the cables can also be connected to the head unit in a plug manner. It should be noted that the specific ways of connecting different radio frequency cables to the head unit can be different or the same, and the present application does not make specific limitations.

[0103] It should be noted that Figure 7 and Figure 8 the sizes of the antenna box and the head unit shown are only for exemplary illustration, and those skilled in the art can change the sizes of the antenna box and the head unit according to actual needs.

[0104] It should be understood that in the various embodiments of the present application, if there is no special description and logical conflict, the terms and / or descriptions between the various embodiments are consistent and can be mutually referred to. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.

[0105] As described above, it is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims described above.

Claims

1. An antenna system, characterized in that: The system comprises: a first antenna, a second antenna, a third antenna, a first baffle, a second baffle and a metal base; The first antenna, the second antenna and the third antenna are sequentially arranged on the metal base, the first antenna is used for communication based on a first communication technology, the second antenna is used for communication based on the first communication technology and the second communication technology, and the third antenna is used for communication based on the third communication technology; The first partition is disposed between the first antenna and the second antenna, and the first partition is used to improve the isolation between the first antenna and the second antenna; The second partition is disposed between the second antenna and the third antenna, and the second partition is used to improve the isolation between the second antenna and the third antenna.

2. The system according to claim 1, characterized in that The first antenna is arranged along a first direction, the second antenna is arranged along a second direction, and the third antenna is arranged along a third direction, the second direction is a direction corresponding to the length of the metal base, the angle between the first direction and the second direction is a first preset value, and the angle between the third direction and the second direction is a second preset value.

3. The system according to claim 2, characterized in that The first preset value is greater than or equal to 40 degrees and less than or equal to 50 degrees, and the second preset value is greater than or equal to 10 degrees and less than or equal to 20 degrees.

4. The system according to claim 1 or 2, characterized in that: The system further comprises: a reflector; The reflective plate is connected to the metal base, and an included angle between the reflective plate and the metal base is a third preset value; The first partition plate is connected to the metal base and the reflective plate, and the second partition plate is connected to the metal base and the reflective plate.

5. The system according to claim 1 or 2, characterized in that: The first partition includes M holes or M openings, and the M holes or the M openings are used to improve the isolation between the first antenna and the second antenna, and M is a positive integer; The second partition includes N holes or N openings, and the N holes or the N openings are used to improve the isolation between the second antenna and the third antenna, and N is a positive integer.

6. The system according to claim 1 or 2, characterized in that: The antenna system is applied in a vehicle. The metal base is also provided with a plurality of through holes or a plurality of grooves, and a plurality of cables connected to the first antenna, the second antenna and the third antenna are connected to the vehicle computer through the plurality of through holes or the plurality of grooves.

7. The system according to claim 6, characterized in that The metal base is also provided with a plurality of nested nuts, and the plurality of nested nuts are used to accommodate a plurality of screws, so that the metal base is connected to the housing of the vehicle machine.

8. The system according to claim 1 or 2, characterized in that: The third antenna may also be used for communication based on the second communication technology.

9. The system according to claim 1 or 2, characterized in that: The first communication technology is wireless fidelity technology, the second communication technology is Bluetooth technology, and the third communication technology is StarFlash technology.

10. The system according to claim 1 or 2, characterized in that: The first separator and / or the second separator is composed of polycarbonate and acrylonitrile-butadiene-styrene copolymer.

11. An antenna box, characterized in that: include: A housing and an antenna system according to any one of claims 1 to 10, wherein the housing is used to protect the antenna system.

12. A vehicle, characterized in that: include: The antenna system according to any one of claims 1 to 10, or comprising the antenna box according to claim 11.

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