Low-profile built-in vehicle-mounted smart antenna system and vehicle

Abstract

This application relates to the field of vehicle-mounted antenna technology, disclosing a low-profile, built-in vehicle-mounted intelligent antenna system and vehicle. The antenna system includes a PCB board, a power supply assembly, and a global navigation satellite system unit. The PCB board includes a first PCB board and a second PCB board. Along a first direction, the first PCB board has a first end and a second end disposed opposite each other, and the second PCB board is connected to the second end. The first direction is perpendicular to the thickness of the PCB board. The power supply assembly is disposed on the first PCB board, and along the first direction, the power supply assembly is closer to the first end than the second end. The global navigation satellite system unit is disposed on the second PCB board, and the global navigation satellite system unit is suitable for receiving satellite signals. This solves the technical problem that when the vehicle-mounted antenna system is integrated into a single PCB board, the global navigation satellite system unit is susceptible to signal interference with components such as the power supply assembly, resulting in reduced reliability of the vehicle-mounted antenna system.

Description

Technical Field

[0001] The present application relates to the technical field of vehicle-mounted antennas, and in particular to a low-profile built-in vehicle-mounted intelligent antenna system and a vehicle. Background Art

[0002] With the advancement of mobile communications and autonomous driving technologies, the demand for wireless communication in vehicles is increasing. Vehicle antennas are essential components for wireless communication. Traditional shark fin antennas and built-in box antennas both connect to the T-BOX via a several-meter-long, low-loss adapter cable, resulting in high production costs and poor reliability.

[0003] In related technologies, the vehicle-mounted antenna system is integrated onto a PCB board to reduce the cost and loss of the split antenna system design. However, when the vehicle-mounted antenna system is integrated onto a PCB board, the global navigation satellite system unit is prone to signal interference with components such as the power supply assembly, resulting in reduced reliability of the vehicle-mounted antenna system. Summary of the Invention

[0004] The present application provides a low-profile built-in vehicle-mounted intelligent antenna system and vehicle, which solves the technical problem that when the vehicle-mounted antenna system is integrated into a PCB board, the global navigation satellite system unit is prone to signal interference with components such as power components, resulting in reduced reliability of the vehicle-mounted antenna system.

[0005] In order to achieve the above objectives, the main technical solutions adopted in this application include:

[0006] In a first aspect, an embodiment of the present application provides an antenna system, which includes a PCB board, a power supply assembly, and a global navigation satellite system unit. The PCB board has a first PCB board and a second PCB board. Along a first direction, the first PCB board has a first end and a second end relatively arranged, and the second PCB board is connected to the second end. The first direction is perpendicular to the thickness direction of the PCB board; the power supply assembly is arranged on the first PCB board, and along the first direction, the power supply assembly is closer to the first end than to the second end; the global navigation satellite system unit is arranged on the second PCB board, and the global navigation satellite system unit is suitable for receiving satellite signals.

[0007] In the antenna system proposed in the embodiment of the present application, the second PCB board is connected to the second end, the global navigation satellite system unit is arranged on the second PCB board, and the power supply assembly is arranged on the first PCB board. In this way, on the one hand, the global navigation satellite system unit and the power supply assembly are integrated on the PCB board, without the need for additional adapters for connection, thereby reducing the manufacturing cost of the antenna system and improving the operating performance of the antenna system. On the other hand, the global navigation satellite system unit is away from interference sources such as the power supply assembly, thereby improving the stability of the global navigation satellite system unit in receiving signals.

[0008] Optionally, along the second direction, the first PCB board has a third end and a fourth end that are relatively arranged, the size of the first PCB board along the first direction is greater than the size of the first PCB board along the second direction, and the first direction, the second direction and the thickness direction of the PCB board are perpendicular to each other.

[0009] This can further separate the power supply assembly from the global navigation satellite system unit, reduce interference with the global navigation satellite system unit caused by the power supply assembly during operation, and improve the stability and reliability of the antenna system operation.

[0010] Optionally, the antenna system includes a cellular communication unit, which is disposed on the first PCB board. Along the first direction, the cellular communication unit is disposed between the power supply component and the second PCB board.

[0011] The cellular communication unit is arranged on the first PCB board, and the global navigation satellite system unit is arranged on the second PCB board, so that the cellular communication unit and the global navigation satellite system unit can be separated, reducing the interference of the cellular communication unit on the global navigation satellite system unit.

[0012] Optionally, the cellular communication unit includes a cellular communication main set unit and a cellular communication diversity unit, the cellular communication main set unit is arranged at the third end, the cellular communication diversity unit is arranged at the second end, and along the first direction, the cellular communication main set unit is arranged between the power supply component and the cellular communication diversity unit.

[0013] The cellular communication main unit is set at the third end, and the cellular communication diversity unit is set at the second end. Separating the cellular communication main unit and the cellular communication diversity unit can reduce signal interference between the two, improve the stability of signal transmission, and thus improve the communication quality of the antenna system.

[0014] Optionally, the antenna system has a first clearance area and a second clearance area, the first clearance area is located at the third end, the second clearance area is located at the second end, the cellular communication main set unit is located in the first clearance area, and the cellular communication diversity unit is located in the second clearance area; along the first direction, the size of the first clearance area is 50-70mm, and the size of the second clearance area is 8-16mm; along the second direction, the size of the first clearance area is 8-16mm, and the size of the second clearance area is 50-70mm.

[0015] The cellular communication main unit is located in the first clearance area, and the cellular communication diversity unit is located in the second clearance area, so as to avoid the influence of the copper clad metal on the first PCB board on the radiation performance of the cellular communication main unit and the cellular communication diversity unit.

[0016] Optionally, the PCB board includes a first transition portion, one end of the first transition portion is connected to the first PCB board along the first direction, and the other end of the first transition portion is connected to the second PCB board. The first transition portion includes a third clearance area and a first connection area. Along the first direction, at least a portion of the cellular communication diversity unit is arranged opposite to the third clearance area, and the copper clad portion of the second PCB board is electrically connected to the copper clad portion of the first PCB board through the first connection area.

[0017] At least a portion of the cellular communication diversity unit is disposed opposite the third clearance area, thereby reducing the influence of the copper-clad area of ​​the PCB board on the signal of the cellular communication diversity unit, improving the signal transmission quality and efficiency of the cellular communication diversity unit, and enhancing the communication stability of the cellular communication diversity unit.

[0018] Optionally, the copper-clad portion of the second PCB board is constructed as a centrally symmetrical structure, and the global navigation satellite system unit is constructed as a centrally symmetrical structure.

[0019] This can better adapt to the circular polarization reception and transmission signals of the global navigation satellite system unit, enable the antenna system to adapt to communication needs in different directions, and improve the efficiency of signal reception and transmission.

[0020] Optionally, the global navigation satellite system unit includes a first ceramic sheet and two first PIN needles arranged on the first ceramic sheet, and the two first PIN needles are welded to the second PCB board.

[0021] The global navigation satellite system unit includes a first ceramic sheet and two first PIN needles arranged on the first ceramic sheet. The two first PIN needles are welded to the second PCB board. This can meet the positioning requirements of the antenna system on the one hand and save manufacturing costs on the other hand.

[0022] Optionally, the global navigation satellite system unit also includes a second ceramic sheet and two second PIN needles arranged on the second ceramic sheet. Along the thickness direction of the PCB board, the first ceramic sheet and the second ceramic sheet are stacked, and the second ceramic sheet is closer to the second PCB board than the first ceramic sheet. The two second PIN needles are welded to the second PCB board, and the two first PIN needles pass through the second ceramic sheet and are welded to the second PCB board.

[0023] The first ceramic sheet and the second ceramic sheet are stacked, and the second ceramic sheet is closer to the second PCB board than the first ceramic sheet. Compared with only setting one first ceramic sheet in the global navigation satellite system unit, the stacking of the first ceramic sheet and the second ceramic sheet can improve the positioning accuracy of the antenna system.

[0024] Optionally, along the thickness direction of the PCB board, a first adhesive layer is provided between the second ceramic sheet and the second PCB board, and a first foam layer is provided between the first ceramic sheet and the upper cover of the antenna system, and the first foam layer is respectively abutted against the first ceramic sheet and the upper cover of the antenna system.

[0025] Along the thickness direction of the PCB board, two sides of the first foam layer can respectively abut against the first ceramic sheet and the upper cover of the antenna system, so that the first ceramic sheet and the second ceramic sheet can be stacked together more firmly.

[0026] Optionally, the antenna system includes a Bluetooth unit, which is arranged at the third end. Along the first direction, the Bluetooth unit is arranged between the cellular communication main set unit and the first end.

[0027] The Bluetooth unit is arranged at the third end. Along the first direction, the Bluetooth unit is arranged between the cellular communication main unit and the first end. This can reduce the impact of the copper clad structure on the first PCB board on the Bluetooth unit signal transmission and reception, and improve the stability and reliability of the antenna system operation.

[0028] Optionally, the Bluetooth unit is etched on the third end of the first PCB board.

[0029] The Bluetooth unit is etched on the first PCB board. In this way, along the thickness direction of the first PCB board, the Bluetooth unit does not occupy additional space on the first PCB board, making the structure of the first PCB board more compact, which is conducive to achieving the requirement of low profile of the antenna system. In addition, the circuit layout and parameters of the Bluetooth unit can be precisely controlled, reducing signal transmission loss and improving the transmission quality and stability of the Bluetooth signal.

[0030] Optionally, the shortest distance between the Bluetooth unit and the cellular communication main set unit is half a medium wavelength.

[0031] The shortest distance between the Bluetooth unit and the cellular communication main unit is half a medium wavelength. This allows the Bluetooth unit and the cellular communication main unit to better transmit and receive signals within their respective operating frequency bands, avoiding problems such as antenna pattern distortion and gain reduction caused by distances that are too close or too far, thereby improving the performance of the entire antenna system.

[0032] Optionally, the cellular communication main unit has multiple first pins, and the cellular communication diversity unit has multiple second pins. The multiple first pins and the multiple second pins are all used for signal excitation and grounding as well as structural fixation and support. Along the thickness direction of the PCB board, the first PCB board is provided with multiple first holes and second holes that penetrate the first PCB board. Each first pin is matched with the corresponding first hole, and each second pin is matched with the corresponding second hole.

[0033] Along the thickness direction of the PCB board, the first PCB board is provided with a plurality of first holes and second holes that penetrate the first PCB board. Each first pin is matched with the corresponding first hole, and each second pin is matched with the corresponding second hole. Each first pin can be soldered to the first hole using a through-hole reflow soldering process, and each second pin can be soldered to the second hole using a through-hole reflow soldering process. In this way, there is no need for manual placement and secondary furnace passing, thereby realizing the automatic installation of the cellular communication main unit and the cellular communication diversity unit on the first PCB board, improving production efficiency and assembly efficiency, and reducing the manufacturing cost of the antenna system.

[0034] Optionally, the antenna system also includes a Bluetooth chip and a communication chip, a Bluetooth signal excitation RF link is arranged between the Bluetooth chip and the Bluetooth unit, the Bluetooth signal excitation RF link is arranged with a group of pi-type topology structure matching positions, a cellular signal excitation main RF link is arranged between the communication chip and the cellular communication main set unit, a cellular signal excitation branch RF link is arranged between the communication chip and the cellular communication diversity unit, and both the cellular signal excitation main RF link and the cellular signal excitation branch RF link are arranged with two groups of pi-type topology structure matching positions.

[0035] The Bluetooth signal excitation RF link is equipped with a set of pi-type topology matching bits, and the cellular signal excitation main RF link and the cellular signal excitation sub-RF link are both equipped with two sets of pi-type topology matching bits, which can meet the signal frequency tuning requirements of the Bluetooth unit, the cellular communication main unit and the cellular communication diversity unit.

[0036] In a second aspect, an embodiment of the present application provides a vehicle, which includes the antenna system of any one of the embodiments of the present application.

[0037] The vehicle proposed in an embodiment of the present application includes an antenna system, a second PCB board connected to the second end, a global navigation satellite system unit is arranged on the second PCB board, and a power supply component is arranged on the first PCB board. In this way, on the one hand, the global navigation satellite system unit and the power supply component are integrated on the PCB board without the need for additional adapter connections, thereby reducing the manufacturing cost of the antenna system and improving the operating performance of the antenna system. On the other hand, the global navigation satellite system unit is away from interference sources such as the power supply component, thereby improving the stability of the global navigation satellite system unit in receiving signals.

[0038] Optionally, the vehicle includes a frame, the frame includes a first crossbeam and a second crossbeam, the first crossbeam and the second crossbeam are arranged at intervals along the front-to-rear direction of the vehicle, and the first crossbeam and the second crossbeam are both located above the cabin; along the front-to-rear direction of the vehicle, the antenna system is arranged between the first crossbeam and the second crossbeam and is connected to the first crossbeam and the second crossbeam through a connecting member, and the first direction is parallel to the length direction of the first crossbeam and / or the second crossbeam.

[0039] The first crossbeam and the second crossbeam are both located above the cockpit. The antenna system is arranged between the first crossbeam and the second crossbeam along the front-to-rear direction of the vehicle. In this way, the antenna system is positioned relatively high with fewer obstacles around it. The antenna system can better receive and transmit signals, thereby improving communication quality and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] Figure 1 A schematic diagram of the structure of the antenna system provided in an embodiment of the present application;

[0042] Figure 2 A schematic structural diagram of the antenna system, the first beam, and the second beam provided in an embodiment of the present application;

[0043] Figure 3 A diagram showing a usage scenario of the antenna system provided in an embodiment of the present application when applied to a vehicle.

[0044] [Description of Reference Numerals]

[0045] Vehicles 1000;

[0046] Antenna system 100;

[0047] PCB board 110;

[0048] First PCB board 120; first end 121; second end 122; third end 123; fourth end 124;

[0049] A second PCB board 130;

[0050] Power supply assembly 140;

[0051] Global Navigation Satellite System unit 150;

[0052] Cellular communication unit 160; cellular communication main set unit 161; cellular communication diversity unit 162;

[0053] First clearance area 170; second clearance area 171;

[0054] First transition portion 180; third clearance area 181; first connection area 182;

[0055] Bluetooth unit 190;

[0056] Bluetooth chip 200;

[0057] Communication chip 210;

[0058] Satellite chip 220;

[0059] Frame 230; first crossbeam 231; second crossbeam 232;

[0060] Connector 240;

[0061] a first groove 250;

[0062] Roof glass 260;

[0063] First direction X; second direction Y. DETAILED DESCRIPTION

[0064] To make the purpose, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are 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 shall fall within the scope of protection of this application.

[0065] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first" and "second" in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary-secondary relationship.

[0066] References to "embodiments" in this application mean that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0067] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "attached" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0068] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0069] The term "multiple" used in this application refers to more than two (including two). Similarly, "multiple groups" refers to more than two (including two) groups, and "multiple sheets" refers to more than two (including two) sheets.

[0070] With the development of mobile communication technology and autonomous driving technology, cars have transformed from simple means of transportation into highly intelligent mobile terminals. The demand for wireless communication functions such as in-car entertainment, vehicle networking, and remote control has exploded. As the core hardware for realizing these wireless communication functions, the performance and design of vehicle antennas have become increasingly important.

[0071] Among traditional in-vehicle antenna solutions, shark fin antennas and built-in box antennas are the most common. These antennas connect to the T-BOX (Telematics Box) via a several-meter-long, low-loss adapter cable. However, this split design has significant drawbacks. Firstly, the production of long adapter cables requires high-specification shielding materials and precision craftsmanship, resulting in high material and assembly costs. Secondly, the adapter cable connectors are prone to poor contact due to vehicle turbulence and vibration. Furthermore, long cables increase the risk of signal loss and external electromagnetic interference, complicating the reliability of the entire antenna system.

[0072] In related technologies, there is a design concept of integrating the vehicle-mounted antenna system onto a single PCB (printed circuit board). This integrated solution effectively reduces the connection loss and assembly cost associated with a split design by directly placing functional components such as the antenna radiation unit, feed network, and signal processing module on the same PCB board. However, when the global navigation satellite system unit is closely arranged on the same PCB board with components such as the power supply assembly, processor, and memory, signal interference is very likely to occur between different modules. For example, the electromagnetic noise generated by the power supply assembly during operation can couple to the signal transmission path of the global navigation satellite system unit, resulting in a decrease in the sensitivity of satellite signal reception. The high-frequency harmonics generated by the high-speed operation of the processor may also interfere with the satellite communication frequency band, ultimately significantly reducing the overall reliability of the vehicle-mounted antenna system.

[0073] In view of this, an embodiment of the present application proposes a low-profile built-in vehicle-mounted intelligent antenna system and a vehicle. The antenna system includes a PCB board, a power supply assembly and a global navigation satellite system unit. The PCB board has a first PCB board and a second PCB board. Along a first direction, the first PCB board has a first end and a second end relatively set, and the second PCB board is connected to the second end. The first direction is perpendicular to the thickness direction of the PCB board; the power supply assembly is arranged on the first PCB board, and along the first direction, the power supply assembly is closer to the first end than to the second end; the global navigation satellite system unit is arranged on the second PCB board, and the global navigation satellite system unit is suitable for receiving satellite signals.

[0074] In the above solution, the second PCB board is connected to the second end, the global navigation satellite system unit is arranged on the second PCB board, and the power supply assembly is arranged on the first PCB board. In this way, on the one hand, the global navigation satellite system unit and the power supply assembly are integrated on the PCB board, without the need for additional adapters, thereby reducing the manufacturing cost of the antenna system and improving the operating performance of the antenna system. On the other hand, the global navigation satellite system unit is away from interference sources such as the power supply assembly, thereby improving the stability of the global navigation satellite system unit receiving signals.

[0075] For the convenience of description, the following embodiments are described by taking a low-profile built-in vehicle-mounted smart antenna system according to an embodiment of the present application as an example.

[0076] Figure 1 A schematic diagram of the structure of the antenna system provided in an embodiment of the present application; Figure 2 A schematic structural diagram of the antenna system, the first beam, and the second beam provided in an embodiment of the present application; Figure 3 A diagram showing a usage scenario of the antenna system provided in an embodiment of the present application when applied to a vehicle.

[0077] Please refer to Figure 1 and Figure 2The antenna system 100 includes a PCB board 110, a power supply assembly 140, and a global navigation satellite system unit 150. The PCB board 110 has a first PCB board 120 and a second PCB board 130. Along a first direction X, the first PCB board 120 has a first end 121 and a second end 122 arranged opposite to each other. The second PCB board 130 is connected to the second end 122. The first direction X is perpendicular to the thickness direction of the PCB board 110. The power supply assembly 140 is arranged on the first PCB board 120. Along the first direction X, the power supply assembly 140 is closer to the first end 121 than the second end 122. The global navigation satellite system unit 150 is arranged on the second PCB board 130, and the global navigation satellite system unit 150 is suitable for receiving satellite signals.

[0078] PCB 110, or printed circuit board, is based on an insulating substrate with copper conductive traces formed on its surface through processes such as printing and etching. PCB 110 is provided with a copper-clad area. Covering the ground layer on PCB 110 with copper over a large area increases the cross-sectional area of ​​the ground conductor, effectively reducing ground resistance and the likelihood of interference between components on PCB 110 due to ground potential differences, thereby improving the stability and reliability of the entire antenna system 100. For example, in high-frequency circuits, a lower ground impedance can reduce the inductance of the signal return path, preventing signal reflection and oscillation.

[0079] The PCB board 110 includes a first PCB board 120 and a second PCB board 130. Along the first direction X, the first PCB board 120 has a first end 121 and a second end 122 arranged opposite to each other, and the second PCB board 130 is arranged at the second end 122 of the first PCB board 120, that is, the second PCB board 130 is located at a position away from the first end 121.

[0080] Power supply assembly 140 is mounted on first PCB 120. During operation, power supply assembly 140 generates a large number of interference sources, such as electromagnetic noise and harmonics, which can interfere with the operation of GNSS unit 150. If power supply assembly 140 is too close to GNSS unit 150, satellite positioning anomalies can occur. Power supply assembly 140 is mounted on first PCB 120, closer to first end 121 than second end 122 along a first direction X. Power supply assembly 140 is located on first PCB 120, farther from second PCB 130. GNSS unit 150 is used to receive satellite signals and can provide vehicle positioning services. The global navigation satellite system unit 150 is disposed on the second PCB board 130. Along the first direction X, the global navigation satellite system unit 150 is located on the side of the first PCB board 120 away from the power supply assembly 140. In this way, the global navigation satellite system unit 150 and the power supply assembly 140 can be separated to prevent interference with the global navigation satellite system unit 150 during operation of the power supply assembly 140.

[0081] For example, the first PCB board 120 can be constructed as a main board, and the storage unit and other components of the antenna system 100 can be set on the first PCB board 120, and the global navigation satellite system unit 150 is set on the second PCB board 130. The global navigation satellite system unit 150 is separated from the storage unit and other components. This can reduce the interference of the components on the first PCB board 120 on the global navigation satellite system unit 150, and improve the stability and reliability of the operation of the antenna system 100.

[0082] Moreover, the GNSS unit 150 is disposed on the second PCB board 130 instead of the first PCB board 120 , so that the GNSS unit 150 does not occupy space on the first PCB board 120 and improves the heat dissipation effect of the components disposed on the first PCB board 120 .

[0083] The second PCB 130 is connected to the second end 122 . The first direction X is perpendicular to the thickness direction of the PCB 110 . For example, the second PCB 130 can be disposed at the second end 122 . Along the thickness direction of the PCB 110 , the projections of the first PCB 120 and the second PCB 130 can be misaligned. This reduces the size of the antenna system 100 along the thickness direction of the PCB 110 , facilitates a flatter configuration of the antenna system 100 , and simplifies installation of the antenna system 100 on the roof of the vehicle 1000 .

[0084] The antenna system 100 integrates the power supply assembly 140 and the global navigation satellite system unit 150 on the PCB board 110, eliminating the need for connecting components such as adapter cables, thereby improving the stability and reliability of the operation of the antenna system 100 and reducing the manufacturing cost of the antenna system 100.

[0085] Please refer to Figure 1 and Figure 2 In this embodiment, along the second direction Y, the first PCB board 120 has a third end 123 and a fourth end 124 that are oppositely arranged. The dimension of the first PCB board 120 along the first direction X is greater than the dimension of the first PCB board 120 along the second direction Y. The first direction X, the second direction Y, and the thickness direction of the PCB board 110 are perpendicular to each other.

[0086] For example, the first PCB board 120 can be constructed as a rectangular structure, and the dimension of the first PCB board 120 along the first direction X is greater than the dimension of the first PCB board 120 along the second direction Y. That is, the power supply assembly 140 and the second PCB board 130 can be located at both ends of the length direction of the first PCB board 120. This can make the distance between the power supply assembly 140 and the global navigation satellite system unit 150 farther, reduce the interference caused by the power supply assembly 140 to the global navigation satellite system unit 150 during operation, and improve the stability and reliability of the operation of the antenna system 100.

[0087] Please refer to Figure 1 and Figure 2 In this embodiment, the antenna system 100 includes a cellular communication unit 160 , which is disposed on the first PCB board 120 . Along the first direction X, the cellular communication unit 160 is disposed between the power supply assembly 140 and the second PCB board 130 .

[0088] The cellular communication unit 160 is used to connect the vehicle 1000 to the Internet of Vehicles, so that the vehicle 1000 can obtain real-time traffic information, receive remote commands, upload vehicle 1000 status data, etc. The cellular communication unit 160 can be a 4G cellular communication unit, a 5G cellular communication unit or a 6G cellular communication unit, etc.

[0089] The cellular communication unit 160 is disposed on the first PCB board 120 , and the global navigation satellite system unit 150 is disposed on the second PCB board 130 . This allows the cellular communication unit 160 and the global navigation satellite system unit 150 to be separated, thereby reducing the disturbance of the cellular communication unit 160 to the global navigation satellite system unit 150 .

[0090] The cellular communication unit 160 and the power supply assembly 140 are both arranged on the first PCB board 120, and the global navigation satellite system unit 150 is arranged on the second PCB board 130. In this way, the antenna system 100 integrates the cellular communication unit 160, the power supply assembly 140 and the global navigation satellite system unit 150 without the need for complex adapter cables to connect the various components, thereby reducing the manufacturing cost of the antenna system 100, reducing the signal loss in the adapter cables, and improving the reliability of the antenna system 100.

[0091] Please refer to Figure 1 and Figure 2 In this embodiment, the cellular communication unit 160 includes a cellular communication main unit 161 and a cellular communication diversity unit 162. The cellular communication main unit 161 is arranged at the third end 123, and the cellular communication diversity unit 162 is arranged at the second end 122. Along the first direction X, the cellular communication main unit 161 is arranged between the power supply component 140 and the cellular communication diversity unit 162.

[0092] The cellular communication main unit 161 is primarily responsible for signal transmission and reception, while the cellular communication diversity unit 162 assists the cellular communication main unit 161 in signal reception. The cellular communication main unit 161 is disposed at the third end 123, and the cellular communication diversity unit 162 is disposed at the second end 122. For example, along the first direction X, the cellular communication main unit 161 and the cellular communication diversity unit 162 may be spaced apart. Separating the cellular communication main unit 161 and the cellular communication diversity unit 162 can reduce signal interference between the two, improve signal transmission stability, and thereby enhance the communication quality of the antenna system 100.

[0093] Along the first direction X, the cellular communication main unit 161 is arranged between the power supply component 140 and the cellular communication diversity unit 162. Along the first direction X, the cellular communication main unit 161 can be spaced apart from the power supply component 140 and the cellular communication diversity unit 162, which can reduce the probability of mutual interference between the various components.

[0094] For example, the first PCB board 120 can be constructed as a rectangular structure, and the third end 123 of the first PCB board 120 can be the long edge of the first PCB board 120. The cellular communication main assembly unit 161 can be arranged on the long edge of the first PCB board 120. When the cellular communication main assembly unit 161 is in operation, it will transmit signals in the second direction Y and away from the fourth end 124. Therefore, the cellular communication main assembly unit 161 is arranged at the third end 123 of the first PCB board 120, that is, the long edge of the first PCB board 120. This enables the cellular communication main assembly unit 161 to transmit and receive signals more smoothly, thereby improving the stability and reliability of the operation of the antenna system 100.

[0095] Moreover, the cellular communication main unit 161 is disposed at the third end 123, and the cellular communication diversity unit 162 is disposed at the second end 122. The cellular communication main unit 161 can transmit and receive signals along the second direction Y and in a direction away from the first PCB board 120, and the cellular communication diversity unit 162 can receive signals along the first direction X and in a direction away from the first PCB board 120. This enables the antenna system 100 to transmit and receive signals in all directions, thereby reducing the occurrence of signal blind spots.

[0096] Please refer to Figure 1 and Figure 2 In this embodiment, the antenna system 100 has a first clearance area 170 and a second clearance area 171. The first clearance area 170 is located at the third end 123, and the second clearance area 171 is located at the second end 122. The cellular communication main unit 161 is located in the first clearance area 170, and the cellular communication diversity unit 162 is located in the second clearance area 171. Along the first direction X, the size of the first clearance area 170 is 50-70 mm, and the size of the second clearance area 171 is 8-16 mm. Along the second direction Y, the size of the first clearance area 170 is 8-16 mm, and the size of the second clearance area 171 is 50-70 mm.

[0097] The antenna system 100 is further provided with a first clearance area 170 and a second clearance area 171. The first clearance area 170 and the second clearance area 171 are located on the first PCB board 120. No corresponding copper-clad structures are provided on the first clearance area 170 and the second clearance area 171. The cellular communication main unit 161 is located in the first clearance area 170, and the cellular communication diversity unit 162 is provided in the second clearance area 171. This prevents the copper-clad metal on the first PCB board 120 from affecting the radiation performance of the cellular communication main unit 161 and the cellular communication diversity unit 162.

[0098] For example, along the second direction Y, the first clearance area 170 can be adjacent to or in contact with the edge of the first PCB board 120 at the third end 123, and the second clearance area 171 can be adjacent to or in contact with the edge of the first PCB board 120 at the second end 122. This can reduce the impact of the copper clad structure of the first PCB board 120 on the radiation performance of the cellular communication main unit 161 and the impact of the copper clad structure of the first PCB board 120 on the radiation performance of the cellular communication diversity unit 162.

[0099] The area of ​​the first clearance zone 170 can be larger than the cellular communication main unit 161, and the area of ​​the second clearance zone 171 can be larger than the cellular communication diversity unit 162. Along the first direction X, the size of the first clearance zone 170 is 50-70 mm, for example, 50 mm, 55 mm, 60 mm, 65 mm or 70 mm, etc. Along the first direction X, the size of the second clearance zone 171 is 8-16 mm, for example, 8 mm, 10 mm, 12 mm, 14 mm or 16 mm. Along the second direction Y, the size of the first clearance zone 170 is 8-16 mm, for example, 8 mm, 10 mm, 12 mm, 14 mm or 16 mm. The size of the second clearance area 171 is 50-70 mm, for example, 50 mm, 55 mm, 60 mm, 65 mm or 70 mm. In this way, the area occupied by the first clearance area 170 and the second clearance area 171 on the first PCB board 120 can be minimized while ensuring that the signal transmission and reception of the cellular communication main unit 161 and the signal reception of the cellular communication diversity unit 162 are not affected, thereby making the structure of the first PCB board 120 more compact and improving the compactness of the structure of the antenna system 100.

[0100] Please refer to Figure 1 and Figure 2 In this embodiment, the PCB board 110 includes a first transition portion 180. Along the first direction X, one end of the first transition portion 180 is connected to the first PCB board 120, and the other end of the first transition portion 180 is connected to the second PCB board 130. The first transition portion 180 includes a third clearance area 181 and a first connection area 182. Along the first direction X, at least a portion of the cellular communication diversity unit 162 is arranged opposite to the third clearance area 181. The copper clad portion of the second PCB board 130 is electrically connected to the copper clad portion of the first PCB board 120 via the first connection area 182.

[0101] The PCB board 110 includes a first transition portion 180. Along the first direction X, the first transition portion 180 is arranged between the first PCB board 120 and the second PCB board 130 and the first transition portion 180 is respectively connected to the first PCB board 120 and the second PCB board 130. The first transition portion 180 includes a third clearance area 181 and a first connection area 182. The first connection area 182 is respectively electrically connected to the first PCB board 120 and the second PCB board 130. There is no copper cladding structure on the third clearance area 181. Along the first direction X, at least a portion of the cellular communication diversity unit 162 is arranged opposite to the third clearance area 181. For example, along the first direction X, the cellular communication The cellular communication diversity unit 162 can be arranged relative to the third clear area 181. Along the first direction X, at least a portion of the cellular communication diversity unit 162 can be arranged relative to the third clear area 181. Since the cellular communication diversity unit 162 can receive signals in the first direction X and away from the first PCB board 120, along the first direction X, at least a portion of the cellular communication diversity unit 162 is arranged relative to the third clear area 181. This can reduce the impact of the copper-clad area of ​​the PCB board 110 on the signal of the cellular communication diversity unit 162, improve the signal transmission quality and efficiency of the cellular communication diversity unit 162, and enhance the communication stability of the cellular communication diversity unit 162.

[0102] The copper-clad portion of the second PCB board 130 is electrically connected to the copper-clad portion of the first PCB board 120 via the first connection area 182. For example, the first connection area 182 can be constructed of copper or a material that can electrically connect the copper-clad portions of the first PCB board 120 and the second PCB board 130, thereby electrically connecting the first PCB board 120 and the second PCB board 130.

[0103] Please refer to Figure 1 and Figure 2 In this embodiment, the copper-clad portion of the second PCB board 130 is constructed as a centrosymmetrical structure, and the global navigation satellite system unit 150 is constructed as a centrosymmetrical structure.

[0104] For example, the second PCB board 130 can be constructed as a centrally symmetrical structure, and the copper-clad portion of the second PCB board 130 can be constructed as a centrally symmetrical structure. The global navigation satellite system unit 150 is arranged on the copper-clad portion of the second PCB board 130. This can better adapt to the circularly polarized reception signal of the global navigation satellite system unit 150, enable the antenna system 100 to adapt to communication requirements in different directions, and improve the signal reception efficiency.

[0105] For example, the GNSS unit 150 may also be constructed as a centrally symmetrical structure.

[0106] Please refer to Figure 1 and Figure 2In this embodiment, the global navigation satellite system unit 150 includes a first ceramic sheet and two first PIN needles disposed on the first ceramic sheet, and the two first PIN needles are soldered to the second PCB board 130 .

[0107] The global navigation satellite system unit 150 includes a first ceramic sheet. The dielectric constant of the ceramic structure is greater than the dielectric constant of a vacuum. Therefore, the wavelength of electromagnetic waves of the same frequency in the first ceramic sheet is shorter than the wavelength in a vacuum. The size of the global navigation satellite system unit 150 is related to the wavelength. Therefore, the global navigation satellite system unit 150 includes the first ceramic sheet. In this way, the size of the global navigation satellite system unit 150 can be smaller while meeting the satellite navigation positioning function. This is conducive to reducing the size of the global navigation satellite system unit 150, making it easier to integrate the global navigation satellite system unit 150 into the PCB board 110.

[0108] Two first PINs are provided on the first ceramic sheet, and the two first PINs are inserted into the second PCB board 130. For example, a satellite chip 220 may also be provided on the first PCB board 120. The satellite chip 220 and the global navigation satellite system unit 150 are both integrated on the PCB board 110, making the structure of the antenna system 100 more compact.

[0109] On the one hand, the two first PIN needles can serve to solder the first ceramic sheet to the second PCB board 130, and on the other hand, they can also serve as signal excitation. The two first PIN needles respectively excite signals of equal amplitude and 90 degrees phase difference to achieve circular polarization, thereby better receiving signals from the satellite.

[0110] The global navigation satellite system unit 150 includes only one first ceramic piece, which can meet the positioning requirements of the antenna system 100, for example, it can meet the Beidou B1 frequency band or the GPS L1 frequency band. This can not only meet the positioning requirements of the antenna system 100, but also save manufacturing costs.

[0111] Please refer to Figure 1 and Figure 2 In this embodiment, the global navigation satellite system unit 150 also includes a second ceramic sheet and two second PIN needles arranged on the second ceramic sheet. Along the thickness direction of the PCB board 110, the first ceramic sheet and the second ceramic sheet are stacked, and the second ceramic sheet is closer to the second PCB board 130 than the first ceramic sheet. The two second PIN needles are welded to the second PCB board 130, and the two first PIN needles pass through the second ceramic sheet and are welded to the second PCB board 130.

[0112] On the one hand, the two second PIN needles can serve to solder the second ceramic sheet to the second PCB board 130, and on the other hand, they can also serve as signal excitation. The two second PIN needles respectively excite signals of equal amplitude and 90 degrees phase difference to achieve circular polarization, thereby better receiving signals from the satellite.

[0113] Along the thickness direction of the PCB board 110 , the first ceramic sheet is farther away from the second PCB board 130 than the second ceramic sheet. The two first PIN pins can pass through the second ceramic sheet and be soldered to the second PCB board 130 .

[0114] The global navigation satellite system unit 150 includes a first ceramic sheet and a second ceramic sheet. The first ceramic sheet and the second ceramic sheet are stacked to meet the high-precision positioning requirements of the antenna system 100, for example, it can meet the requirements of GPS frequency bands such as L1 or L5, and the requirements of Beidou frequency bands such as B1 and B2. Compared with only setting a first ceramic sheet in the global navigation satellite system unit 150, the stacking of the first ceramic sheet and the second ceramic sheet can improve the positioning accuracy of the antenna system 100, and the stacking of the first ceramic sheet and the second ceramic sheet can also reduce the occupancy of the global navigation satellite system unit 150 on the plane of the second PCB board 130.

[0115] For example, the diameter of the first PIN pin can be larger than the diameter of the second PIN pin, so that during the assembly process, the assembler will not insert the first ceramic sheet and the second ceramic sheet incorrectly, which plays a physical fool-proofing role and improves the assembly efficiency of the assembler.

[0116] In some embodiments, the second ceramic sheet is larger than the first ceramic sheet, so that the first ceramic sheet is more stably stacked on the second ceramic sheet.

[0117] Please refer to Figure 1 and Figure 2 In this embodiment, a first adhesive layer is provided between the second ceramic sheet and the second PCB board 130 along the thickness direction of the PCB board 110, and a first foam layer is provided between the first ceramic sheet and the upper cover of the antenna system 100. The first foam layer is respectively in contact with the first ceramic sheet and the upper cover of the antenna system 100.

[0118] The material of the first bonding layer can be constructed as a glue, so that the second ceramic sheet is bonded to the second PCB board 130, making the bonding between the second ceramic sheet and the second PCB board 130 more firmly. Along the thickness direction of the PCB board 110, a first foam layer is provided on the side of the first ceramic sheet away from the second ceramic sheet. Exemplarily, the shell of the antenna system 100 can be constructed as a box body. The antenna system 100 may include an upper cover and a lower cover. Along the thickness direction of the PCB board 110, the first ceramic sheet is closer to the upper cover than the second ceramic sheet. Along the thickness direction of the PCB board 110, the two sides of the first foam layer can respectively abut the first ceramic sheet and the upper cover of the antenna system 100, so that the first ceramic sheet and the second ceramic sheet can be stacked together more firmly.

[0119] Please refer to Figure 1 and Figure 2 In this embodiment, the antenna system 100 includes a Bluetooth unit 190 , which is disposed at the third end 123 . Along the first direction X, the Bluetooth unit 190 is disposed between the cellular communication main unit 161 and the first end 121 .

[0120] Exemplarily, the Bluetooth unit 190 is disposed at the third end 123, and the Bluetooth unit 190 can be separated from the power supply component 140, so that during the operation of the Bluetooth unit 190, the interference of the power supply component 140 on the Bluetooth unit 190 is reduced, thereby improving the stability and reliability of the operation of the antenna system 100.

[0121] Along the first direction X, the Bluetooth unit 190 is disposed between the cellular communication main unit 161 and the first end 121 . The Bluetooth unit 190 can be spaced apart from the cellular communication main unit 161 to reduce electromagnetic interference between the cellular communication main unit 161 and the Bluetooth unit 190 .

[0122] Moreover, the Bluetooth unit 190 is arranged at the third end 123. Exemplarily, the Bluetooth unit 190 can be arranged at the edge of the third end 123 of the first PCB board 120. Along the second direction Y, the Bluetooth unit 190 can transmit signals in a direction away from the PCB board 110. By setting the Bluetooth unit 190 at the third end 123, the influence of the copper clad structure on the first PCB board 120 on the signal transmission and reception of the Bluetooth unit 190 can be reduced, thereby improving the stability and reliability of the operation of the antenna system 100.

[0123] Please refer to Figure 1 and Figure 2 In this embodiment, the Bluetooth unit 190 is etched on the third end 123 of the first PCB board 120 .

[0124] Because the Bluetooth unit 190 has a relatively narrow bandwidth, when it is etched onto the first PCB 120, the Bluetooth unit 190 occupies less space on the first PCB 120. Therefore, the Bluetooth unit 190 is etched onto the first PCB 120, meaning that the Bluetooth unit 190 and the first PCB 120 are integrally formed. During the production process, the Bluetooth unit 190 is mounted on the first PCB 120. This eliminates the need for additional space on the first PCB 120 along its thickness, making the structure of the first PCB 120 more compact and facilitating the low-profile antenna system 100. Furthermore, etching the Bluetooth unit 190 onto the first PCB 120 allows for precise control of the circuit layout and parameters of the Bluetooth unit 190, reducing signal transmission losses and improving the transmission quality and stability of the Bluetooth signal.

[0125] Please refer to Figure 1 and Figure 2 In this embodiment, the shortest distance between the Bluetooth unit 190 and the cellular communication main set unit 161 is half a medium wavelength.

[0126] Within the first PCB board 120, the shortest distance between the Bluetooth unit 190 and the cellular communication main set unit 161 is half a medium wavelength. That is, the distance between the Bluetooth unit 190 and the cellular communication main set unit 161 is half of the same frequency wavelength of the Bluetooth unit 190 and the cellular communication main set unit 161. This can minimize the electromagnetic interference between the Bluetooth unit 190 and the cellular communication main set unit 161, thereby ensuring the integrity and stability of the respective signals of the Bluetooth unit 190 and the cellular communication main set unit 161, and improving the communication quality.

[0127] Moreover, the shortest distance between the Bluetooth unit 190 and the cellular communication main set unit 161 is half a medium wavelength. This enables the Bluetooth unit 190 and the cellular communication main set unit 161 to better transmit and receive signals within their respective operating frequency bands, avoiding problems such as antenna radiation pattern distortion and gain reduction caused by too close distance, thereby improving the performance of the entire antenna system 100.

[0128] Please refer to Figure 1 and Figure 2 In this embodiment, the cellular communication main unit 161 has multiple first pins, and the cellular communication diversity unit 162 has multiple second pins. The multiple first pins and the multiple second pins are all used for signal excitation and grounding as well as structural fixation and support. Along the thickness direction of the PCB board 110, the first PCB board 120 is provided with multiple first holes and second holes that penetrate the first PCB board 120. Each first pin is matched with a corresponding first hole, and each second pin is matched with a corresponding second hole.

[0129] In the prior art, the cellular communication main unit 161 and the cellular communication diversity unit 162 are formed by hot-melting a steel sheet onto a plastic bracket, thereby fixing the steel sheet to the circuit board. In the embodiment of the present application, the cellular communication main unit 161 and the cellular communication diversity unit 162 can both be constructed by folding a whole piece of steel sheet. By thickening the thickness of the steel sheet in the embodiment of the present application, the probability of deformation and damage of the steel sheet can be reduced.

[0130] The cellular communication main unit 161 has multiple first pins, and the cellular communication diversity unit 162 has multiple second pins. The multiple first pins and the multiple second pins are all used for signal excitation and grounding as well as structural fixation and support. In this way, the cellular communication main unit 161 and the cellular communication diversity unit 162 are fixed to the first PCB board 120 through the multiple first pins and the second pins. Compared with being set on the first PCB board 120 through a plastic bracket, this can save the mold opening cost and material cost of the plastic bracket, thereby reducing the manufacturing cost of the antenna system 100.

[0131] Exemplarily, the plurality of first pins can be four first pins, the plurality of second pins can be four second pins, two first pins can be used for structural fixation and support, and the other two first pins can be used for signal excitation and grounding, two second pins can be used for structural fixation and support, and the other two second pins can be used for signal excitation and grounding.

[0132] The first PCB board 120 is provided with a plurality of first holes and a plurality of second holes. Along the thickness direction of the PCB board 110, the plurality of first holes and the plurality of second holes penetrate the first PCB board 120. Each first pin can be soldered to the first hole using a through-hole reflow process, and each second pin can be soldered to the second hole using a through-hole reflow process. This eliminates the need for manual placement and secondary furnace processing, thereby enabling the automatic installation of the cellular communication main unit 161 and the cellular communication diversity unit 162 on the first PCB board 120, thereby improving production efficiency and assembly efficiency and reducing the manufacturing cost of the antenna system 100.

[0133] Illustratively, the operating frequency bands of the cellular communication main unit 161 and the cellular communication diversity unit 162 provided in the embodiment of the present application cover 698-960 MHz and 1710-2690 MHz.

[0134] Please refer to Figure 1 and Figure 2In this embodiment, the antenna system 100 further includes a Bluetooth chip 200 and a communication chip 210. A Bluetooth signal excitation RF link is provided between the Bluetooth chip 200 and the Bluetooth unit 190. The Bluetooth signal excitation RF link is provided with a group of pi-type topology structure matching bits. A cellular signal excitation main RF link is provided between the communication chip 210 and the cellular communication main set unit 161. A cellular signal excitation sub-RF link is provided between the communication chip 210 and the cellular communication diversity unit 162. Both the cellular signal excitation main RF link and the cellular signal excitation sub-RF link are provided with two groups of pi-type topology structure matching bits.

[0135] A Bluetooth signal excitation radio frequency link is set between the Bluetooth chip 200 and the Bluetooth unit 190. The Bluetooth chip 200 and the Bluetooth unit 190 complete signal transmission between each other through the Bluetooth signal excitation radio frequency link. The Bluetooth chip 200 and the communication chip 210 can both be set on the first PCB board 120. Since the working bandwidth of the Bluetooth unit 190 is relatively narrow, the Bluetooth signal excitation radio frequency link is provided with a group of pi-type topology matching bits, which can meet the signal frequency tuning requirements of the Bluetooth unit 190.

[0136] A cellular signal excitation main RF link is set between the cellular communication main set unit 161 and the communication chip 210. The cellular communication main set unit 161 and the communication chip 210 transmit signals to each other through the cellular signal excitation main RF link. Since the cellular communication main set unit 161 is a multi-frequency broadband antenna, two groups of pi-type topology matching bits are set on the cellular signal excitation main RF link to meet the tuning requirements of the cellular communication main set unit 161.

[0137] A cellular signal excitation sub-radio frequency link is set between the cellular communication diversity unit 162 and the communication chip 210. The cellular communication diversity unit 162 and the communication chip 210 transmit signals to each other through the cellular signal excitation sub-radio frequency link. Since the cellular communication diversity unit 162 is a multi-frequency broadband antenna, two groups of pi-type topology matching bits are set on the cellular signal excitation sub-radio frequency link to meet the tuning requirements of the cellular communication diversity unit 162.

[0138] Please refer to Figure 1 and Figure 3 , an embodiment of the present application proposes a vehicle 1000, and the vehicle 1000 includes the antenna system 100 of any one of the embodiments of the present application.

[0139] The vehicle 1000 proposed in the embodiment of the present application includes an antenna system 100, a second PCB board 130 connected to the second end 122, a global navigation satellite system unit 150 is arranged on the second PCB board 130, and a power supply component 140 is arranged on the first PCB board 120. In this way, on the one hand, the global navigation satellite system unit 150 and the power supply component 140 are integrated on the PCB board 110 without the need for additional adapters, thereby reducing the manufacturing cost of the antenna system 100 and improving the operating performance of the antenna system 100. On the other hand, the global navigation satellite system unit 150 is away from interference sources such as the power supply component 140, thereby improving the stability of the global navigation satellite system unit 150 in receiving signals.

[0140] Please refer to Figure 1 and Figure 3 In this embodiment, the vehicle 1000 includes a frame 230, which includes a first crossbeam 231 and a second crossbeam 232. The first crossbeam 231 and the second crossbeam 232 are spaced apart in the front-to-rear direction of the vehicle 1000, and the first crossbeam 231 and the second crossbeam 232 are both located above the cabin. Along the front-to-rear direction of the vehicle 1000, the antenna system 100 is disposed between the first crossbeam 231 and the second crossbeam 232 and connected to the first crossbeam 231 and the second crossbeam 232 via a connector 240. The first direction X is parallel to the length direction of the first crossbeam 231 and / or the second crossbeam 232.

[0141] The length direction of the first crossbeam 231 and the second crossbeam 232 is parallel to the left-right direction of the vehicle 1000, and the first crossbeam 231 and the second crossbeam 232 are spaced apart in the front-back direction of the vehicle 1000. For example, the antenna system 100 can be connected to the first crossbeam 231 and the second crossbeam 232 by a connector 240 such as a bracket, so that the antenna system 100 is fixed to the vehicle 1000.

[0142] The vehicle 1000 may further include a roof glass 260. Along the up and down direction of the vehicle 1000, the roof glass 260 is arranged above the first crossbeam 231 and the second crossbeam 232, and the antenna system 100 may be located below the roof glass 260. That is, the antenna system 100 may be arranged inside the vehicle 1000. Compared with the shark fin antenna exposed on the outside of the antenna system 100, the antenna system 100 is arranged below the roof glass 260. In this way, on the one hand, there is no need for additional waterproofing of the antenna system 100, thereby reducing the manufacturing cost of the antenna system 100. On the other hand, it can reduce the wind resistance of the vehicle 1000 during operation and improve the operating performance of the vehicle 1000.

[0143] The first crossbeam 231 and the second crossbeam 232 are located above the cockpit, and the antenna system 100 can also be located above the cockpit. In this way, the antenna system 100 is located relatively high and has fewer obstacles around it. In this way, the antenna system 100 can better receive and transmit signals, thereby improving communication quality and stability.

[0144] In some embodiments, the first PCB board 120 can be constructed in a rectangular shape, with the dimension of the first PCB board 120 along the first direction X being greater than the dimension of the first PCB board 120 along the second direction Y. The global navigation satellite system unit 150 is located at one end of the first PCB board 120 in the longitudinal direction, and the global navigation satellite system unit 150 is located at the second end 122 of the first PCB board 120. The first direction X is parallel to the left-right direction of the vehicle 1000. In this way, obstructions to the global navigation satellite system unit 150 in the left-right direction of the vehicle 1000 are reduced, and the first beam 231 and the second beam 232 do not affect the reception of signals by the global navigation satellite system unit 150, thereby improving the stability and reliability of the operation of the antenna system 100.

[0145] Exemplarily, the first crossbeam 231 or the second crossbeam 232 further has a first groove 250 that passes through the upper and lower end surfaces. Along the front-to-back direction of the vehicle 1000, the opening of the first groove 250 faces the third end 123 of the antenna system 100. Along the front-to-back direction of the vehicle 1000, the third end 123 of the antenna system 100 is closer to the first groove 250 than the fourth end 124 of the antenna system 100. This can reduce the impact of the first crossbeam 231 or the second crossbeam 232 on the cellular communication unit 160 and the Bluetooth unit 190 when sending and receiving signals.

[0146] It should also be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, commodity, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, commodity, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, commodity, or apparatus that includes the element.

[0147] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0148] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

[0149] Although the embodiments of the present application have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present application, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A low-profile built-in vehicle-mounted smart antenna system, characterized in that: include: A PCB board (110) comprising a first PCB board (120) and a second PCB board (130); along a first direction (X), the first PCB board (120) comprises a first end (121) and a second end (122) arranged opposite to each other; the second PCB board (130) is connected to the second end (122); and the first direction (X) is perpendicular to a thickness direction of the PCB board (110); A power supply component (140) is disposed on the first PCB board (120), and along the first direction (X), the power supply component (140) is closer to the first end (121) than the second end (122); A global navigation satellite system unit (150) is provided on the second PCB board (130), and the global navigation satellite system unit (150) is suitable for receiving satellite signals; The antenna system further comprises a Bluetooth chip (200), a communication chip (210), and a satellite chip (220), wherein the Bluetooth chip (200), the communication chip (210), and the satellite chip (220) are all arranged on the first PCB board (120); The PCB board (110) comprises a first transition portion (180); along the first direction (X), one end of the first transition portion (180) is connected to the first PCB board (120), and the other end of the first transition portion (180) is connected to the second PCB board (130); the first transition portion (180) comprises a third clearance area (181) and a first connection area (182); the copper-clad portion of the second PCB board (130) is electrically connected to the copper-clad portion of the first PCB board (120) via the first connection area (182).

2. The antenna system according to claim 1, wherein Along the second direction (Y), the first PCB board (120) has a third end (123) and a fourth end (124) that are arranged opposite to each other; the size of the first PCB board (120) along the first direction (X) is greater than the size of the first PCB board (120) along the second direction (Y); and the first direction (X), the second direction (Y) and the thickness direction of the PCB board (110) are perpendicular to each other.

3. The antenna system according to claim 2, wherein: The antenna system comprises a cellular communication unit (160), wherein the cellular communication unit (160) is arranged on the first PCB board (120), and along the first direction (X), the cellular communication unit (160) is arranged between the power supply component (140) and the second PCB board (130).

4. The antenna system according to claim 3, wherein: The cellular communication unit (160) comprises a cellular communication main set unit (161) and a cellular communication diversity unit (162), wherein the cellular communication main set unit (161) is arranged at the third end (123), and the cellular communication diversity unit (162) is arranged at the second end (122), and along the first direction (X), the cellular communication main set unit (161) is arranged between the power supply component (140) and the cellular communication diversity unit (162).

5. The antenna system according to claim 4, characterized in that The antenna system has a first clear area (170) and a second clear area (171), the first clear area (170) is located at the third end (123), the second clear area (171) is located at the second end (122), the cellular communication main set unit (161) is located in the first clear area (170), and the cellular communication diversity unit (162) is located in the second clear area (171); Along the first direction (X), the size of the first clearance area (170) is 50-70 mm, and the size of the second clearance area (171) is 8-16 mm. Along the second direction (Y), the size of the first clearance area (170) is 8-16 mm, and the size of the second clearance area (171) is 50-70 mm.

6. The antenna system according to claim 4, wherein: Along the first direction (X), at least a portion of the cellular communication diversity unit (162) is arranged opposite to the third clearance area (181).

7. The antenna system according to claim 1, wherein: The copper-clad portion of the second PCB board (130) is constructed as a centrally symmetrical structure, and the global navigation satellite system unit (150) is constructed as a centrally symmetrical structure.

8. The antenna system according to claim 7, wherein: The global navigation satellite system unit (150) comprises a first ceramic sheet and two first PIN needles arranged on the first ceramic sheet, and the two first PIN needles are welded to the second PCB board (130).

9. The antenna system according to claim 8, wherein: The global navigation satellite system unit (150) further comprises a second ceramic sheet and two second PIN needles arranged on the second ceramic sheet, the first ceramic sheet and the second ceramic sheet being stacked along the thickness direction of the PCB board (110), the second ceramic sheet being closer to the second PCB board (130) than the first ceramic sheet, the two second PIN needles being welded to the second PCB board (130), and the two first PIN needles being welded to the second PCB board (130) through the second ceramic sheet.

10. The antenna system according to claim 9, characterized in that Along the thickness direction of the PCB board (110), a first bonding layer is provided between the second ceramic sheet and the second PCB board (130), a first foam layer is provided between the first ceramic sheet and the upper cover of the antenna system, and the first foam layer abuts against the first ceramic sheet and the upper cover of the antenna system respectively.

11. The antenna system according to claim 4, wherein: The antenna system comprises a Bluetooth unit (190), the Bluetooth unit (190) being arranged at the third end (123), and being arranged between the cellular communication main set unit (161) and the first end (121) along the first direction (X).

12. The antenna system according to claim 11, wherein: The Bluetooth unit (190) is etched on the third end (123) of the first PCB board (120).

13. The antenna system according to claim 11, wherein: The shortest distance between the Bluetooth unit (190) and the cellular communication master unit (161) is half a medium wavelength.

14. The antenna system according to claim 4, wherein: The cellular communication main unit (161) has a plurality of first pins, and the cellular communication diversity unit (162) has a plurality of second pins. The plurality of first pins and the plurality of second pins are both used for signal excitation and grounding as well as structural fixation and support. Along the thickness direction of the PCB board (110), the first PCB board (120) is provided with a plurality of first holes and second holes penetrating the first PCB board (120). Each of the first pins is matched with a corresponding first hole, and each of the second pins is matched with a corresponding second hole.

15. The antenna system according to claim 11, wherein A Bluetooth signal excitation radio frequency link is provided between the Bluetooth chip (200) and the Bluetooth unit (190), and the Bluetooth signal excitation radio frequency link is provided with a group of pi-type topology structure matching bits. A cellular signal excitation main radio frequency link is provided between the communication chip (210) and the cellular communication main set unit (161), and a cellular signal excitation sub-radio frequency link is provided between the communication chip (210) and the cellular communication diversity unit (162), and both the cellular signal excitation main radio frequency link and the cellular signal excitation sub-radio frequency link are provided with two groups of pi-type topology structure matching bits.

16. A vehicle, characterized in that: The antenna system comprises the antenna system according to any one of claims 1 to 15.

17. The vehicle according to claim 16, characterized in that The vehicle comprises: A vehicle frame (230) includes a first crossbeam (231) and a second crossbeam (232), wherein the first crossbeam (231) and the second crossbeam (232) are spaced apart in a front-rear direction of the vehicle, and both the first crossbeam (231) and the second crossbeam (232) are located above the cabin; Along the front-rear direction of the vehicle, the antenna system is arranged between the first crossbeam (231) and the second crossbeam (232) and is connected to the first crossbeam (231) and the second crossbeam (232) via a connecting member (240), and the first direction (X) is parallel to the length direction of the first crossbeam (231) and / or the second crossbeam (232).

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