V2X antenna

Abstract

The V2X antenna comprises a radiation layer and a feed layer which are oppositely arranged, the radiation layer and the feed layer are electrically connected through an interconnection structure, the interconnection structure comprises a connecting piece and a feed metal rod, the connecting piece is located between the radiation layer and the feed layer, the radiation layer is provided with a first feed hole, and the feed metal rod is provided with a second feed hole. The connecting piece is provided with a second feed hole, the feed layer is provided with a third feed hole, and the feed metal rod sequentially penetrates through the first feed hole, the second feed hole and the third feed hole. According to the utility model, the structure is simple, the radiation layer and the feed layer are electrically connected through the interconnection structure, and the antenna can be directly bonded below the glass roof of an automobile during installation, so that the glass roof does not need to be perforated, and the antenna can be hidden in the glass roof, thereby improving the integrity and aesthetic property of the glass roof.

Description

Technical Field

[0001] The utility model relates to the field of vehicle-mounted antennas, and more specifically, to a V2X antenna. Background Art

[0002] At present, most of the V2X antennas on passenger cars are integrated into the shark fin structure and installed by opening a hole on the top of the car. However, in order to improve the aesthetics of the car, more and more cars are beginning to use large glass or full glass roofs, which will pose a challenge to traditional shark fin antennas. Large glass or full glass roofs have the following disadvantages: 1. Glass roofs are not conducive to the opening and installation of shark fin antennas; 2. Shark fin antennas affect the appearance of the entire vehicle and reduce the integrity and aesthetics of the roof. Therefore, V2X antennas that can be installed under the car glass are becoming a new demand. Utility Model Content

[0003] In view of this, the utility model provides a V2X antenna that can be installed under the glass roof of a car.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] A V2X antenna comprises a radiation layer and a feeding layer arranged opposite to each other, the radiation layer and the feeding layer are electrically connected via an interconnection structure, the interconnection structure comprises a connector and a feeding metal rod, the connector is located between the radiation layer and the feeding layer, the radiation layer is provided with a first feeding hole, the connector is provided with a second feeding hole, the feeding layer is provided with a third feeding hole, and the feeding metal rod passes through the first feeding hole, the second feeding hole and the third feeding hole in sequence.

[0006] The V2X antenna structure in the above technical solution is simple, and the radiation layer and the feed layer are only electrically connected through the interconnection structure. During installation, the antenna can be directly bonded under the glass roof of the car, so there is no need to open a hole in the glass roof. At the same time, it can be hidden inside the glass roof, which improves the integrity and aesthetics of the glass roof. In addition, the radiation layer and the feed layer can produce a synergistic effect, which can enhance the radiation performance of the antenna, thereby improving the gain of the antenna, making it have a good surrounding radiation effect and horizontal omnidirectional radiation characteristics; and through the design of the connector and the feed metal rod, the antenna can be operated in a wider frequency band, thereby supporting more communication frequency bands.

[0007] Optionally, in a possible implementation, the connecting member includes a connecting plate, a first connecting column and a second connecting column, the connecting plate has a first surface and a second surface arranged opposite to each other, the first connecting column is arranged on the first surface and connected to the radiation layer, and the second connecting column is arranged on the second surface and connected to the feeding layer.

[0008] In the above technical solution, the connecting part serves as a horizontal to vertical signal transmission structure, which can effectively enhance the structural stability of the antenna, enable it to maintain reliable electrical performance under various environmental conditions, and connect the first connecting column and the second connecting column to the radiation layer and the feeding layer respectively, so as to better realize the coordinated work of the radiation layer and the feeding layer, thereby improving the overall efficiency of the antenna.

[0009] Optionally, in a possible implementation manner, the second feeding hole passes through the connecting plate and the first connecting column, there are a plurality of second connecting columns, and the plurality of second connecting columns are arranged at intervals around the second feeding hole.

[0010] In the above technical solution, by passing the second feeding hole through the connecting plate and the first connecting column, and arranging a plurality of second connecting columns around the second feeding hole and arranged at intervals, the current distribution can be optimized, the radiation performance and efficiency of the antenna can be improved, the installation of the feeding metal rod can be facilitated, and the antenna can maintain reliable performance under various environmental conditions.

[0011] Optionally, in a possible implementation manner, the feed layer is attached to the second surface, and the second connecting column passes through the feed layer.

[0012] In the above technical solution, the feeding layer is adhered to the second surface, which can effectively reduce the size of the antenna, further reduce the volume of the antenna, thereby reducing the space occupied and facilitating subsequent installation. At the same time, the second connecting column can be used as a positioning structure and a fixing structure to fix the feeding layer and realize electrical connection with the feeding layer, which can improve the stability of fixing and the stability of signal transmission at the same time.

[0013] Optionally, in a possible implementation, the radiation layer includes a radiation plate, and a first copper foil layer and a second copper foil layer arranged on two opposite surfaces of the radiation plate, the second copper foil layer is close to the feeding layer, and the first feeding hole passes through the radiation plate and the second copper foil layer.

[0014] In the above technical solution, by setting the first copper foil layer and the second copper foil layer on the radiation plate, the conductive property of the copper foil can be utilized to enhance the radiation performance of the antenna and improve the gain of the antenna, and the second copper foil layer is a copper foil pattern, which serves as the ground structure of the antenna so that the antenna can work normally.

[0015] Optionally, in a possible implementation manner, a plurality of metal vias are provided on the radiation board, the plurality of metal vias are arranged around the first feeding hole, and the metal vias are connected to the first copper foil layer and the second copper foil layer.

[0016] In the above technical solution, metal vias are used to connect the first copper foil layer and the second copper foil layer, thereby facilitating copper plating so that the first copper foil layer and the second copper foil layer can be electrically connected. At the same time, the design of multiple metal vias can effectively reduce the energy loss inside the antenna and improve the efficiency of the antenna. Due to the presence of metal vias, the signal transmission between the feeding part and the radiating part is smoother and the energy loss is reduced.

[0017] Optionally, in a possible implementation, the feed layer includes a feed board, and a third copper foil layer and a microstrip signal line arranged on a side of the feed board away from the connection board, and the microstrip signal line is connected to the third feed hole.

[0018] In the above technical solution, the third copper foil layer and microstrip signal line arranged on the feed board can enable the antenna to have multiple signal transmission capabilities. The third copper foil layer can enhance the radiation performance of the antenna, and the microstrip signal line can transmit the received signal to the subsequent processing unit for processing.

[0019] Optionally, in a possible implementation manner, a mounting hole is provided on the feed board, and the mounting hole matches the second connecting column.

[0020] In the above technical solution, the mounting hole provided on the feed board corresponds to the second connecting column, that is, the second connecting column can be inserted into the mounting hole during installation, so as to fix the feed board on the connecting member and enable the second connecting column to achieve electrical connection with the third copper foil layer on the feed board.

[0021] Optionally, in a possible implementation manner, the feeding metal rod is a copper rod.

[0022] In the above technical solution, the copper rod is used as a feeding metal rod, which has excellent conductivity and can ensure the stability and efficiency of the signal during transmission. In addition, the copper rod is not easily oxidized and has good corrosion resistance, which can ensure the stability of the antenna during use.

[0023] Optionally, in a possible implementation manner, the connecting piece is made of metal material.

[0024] In the above technical solution, the connector made of metal material can optimize the signal transmission path, reduce signal loss and interference, and improve the efficiency of the antenna. At the same time, it has high mechanical strength and can ensure the stability and reliability of the antenna during use.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] The V2X antenna of the utility model has a simple structure. It only needs to electrically connect the radiation layer and the feeding layer through an interconnection structure. During installation, the antenna can be directly bonded under the glass roof of the car, so there is no need to open a hole in the glass roof. At the same time, it can also be hidden inside the glass roof, thereby improving the integrity and aesthetics of the glass roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 This is an exploded view of the overall structure of an embodiment of the utility model.

[0029] Figure 2 This is an overall structural assembly diagram of an embodiment of the utility model.

[0030] Figure 3 It is a structural schematic diagram of a connecting piece according to an embodiment of the utility model.

[0031] Figure 4 It is a schematic diagram of the use of an embodiment of the utility model.

[0032] Figure numerals: 1-radiation layer; 11-first feeding hole; 111-metal via; 12-radiation plate; 13-first copper foil layer; 14-second copper foil layer; 2-interconnection structure; 21-connector; 211-connecting plate; 212-first connecting column; 213-second connecting column; 22-feeding metal rod; 23-second feeding hole; 3-feeding layer; 31-third feeding hole; 32-feeding plate; 33-third copper foil layer; 34-microstrip signal line. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution 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, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0035] Please refer to Figure 1-Figure 4 .

[0036] The present embodiment provides a V2X antenna, including a radiation layer 1 and a feeding layer 3 arranged opposite to each other, the radiation layer 1 and the feeding layer 3 are electrically connected through an interconnection structure 2, the interconnection structure 2 includes a connector 21 and a feeding metal rod 22, the connector 21 is located between the radiation layer 1 and the feeding layer 3, the radiation layer 1 is provided with a first feeding hole 11, the connector 21 is provided with a second feeding hole 23, the feeding layer 3 is provided with a third feeding hole 31, and the feeding metal rod 22 passes through the first feeding hole 11, the second feeding hole 23 and the third feeding hole 31 in sequence. Specifically, the first feeding hole 11, the second feeding hole 23 and the third feeding hole 31 of the present embodiment are respectively arranged at the center of the radiation layer 1, the connector 21 and the feeding layer 3, and of course, they can also be arranged at different positions according to the actual structure and requirements. It should be noted that the centers of the first feeding hole 11, the second feeding hole 23 and the third feeding hole 31 are located on the same straight line.

[0037] The V2X antenna structure of this embodiment is simple. It only needs to electrically connect the radiation layer 1 and the feed layer 3 through the interconnection structure 2. When installing, the antenna can be directly bonded under the glass roof of the car, so there is no need to open a hole in the glass roof. At the same time, it can be hidden inside the glass roof, which improves the integrity and aesthetics of the glass roof. In addition, the radiation layer 1 and the feed layer 3 can produce a synergistic effect, which can enhance the radiation performance of the antenna, thereby improving the gain of the antenna, so that it has a good surrounding radiation effect and horizontal omnidirectional radiation characteristics; and through the design of the connector 21 and the feed metal rod 22, the antenna can be realized to work in a wider frequency band, thereby supporting more communication frequency bands.

[0038] In a possible implementation, the connector 21 includes a connecting plate 211, a first connecting column 212, and a second connecting column 213. The connecting plate 211 has a first surface and a second surface that are oppositely disposed. The first connecting column 212 is disposed on the first surface and connected to the radiation layer 1. The second connecting column 213 is disposed on the second surface and connected to the feed layer 3. In this embodiment, the radiation layer 1, the connecting plate 211, and the feed layer 3 are all thin cylindrical structures.

[0039] The connector 21 of this embodiment serves as a horizontal-to-vertical signal transmission structure, which can effectively enhance the structural stability of the antenna, so that it can maintain reliable electrical performance under various environmental conditions, and connect the first connecting column 212 and the second connecting column 213 to the radiation layer 1 and the feeding layer 3 respectively, so as to better achieve the coordinated work of the radiation layer 1 and the feeding layer 3, thereby improving the overall efficiency of the antenna.

[0040] In a possible implementation, the second feeding hole 23 passes through the connecting plate 211 and the first connecting column 212, and there are multiple second connecting columns 213, which are arranged at intervals around the second feeding hole 23. Specifically, the second connecting columns 213 of this embodiment are arranged as 16, and are evenly spaced and distributed in a ring shape around the outer periphery of the second feeding hole 23.

[0041] In this embodiment, the second feeding hole 23 is passed through the connecting plate 211 and the first connecting column 212, and a plurality of second connecting columns 213 are arranged around the second feeding hole 23 at intervals, so that the current distribution can be optimized, the radiation performance and efficiency of the antenna can be improved, the installation of the feeding metal rod 22 can be facilitated, and the antenna can maintain reliable performance under various environmental conditions. In addition, the design of the plurality of second connecting columns 213 can better realize the coordinated work of the radiation layer 1 and the feeding layer 3, thereby improving the overall efficiency of the antenna.

[0042] In a possible implementation, the feed layer 3 is attached to the second surface, and the second connecting column 213 is passed through the feed layer 3. By making the feed layer 3 attached to the second surface, the size of the antenna can be effectively reduced, so that the volume of the antenna is further reduced, thereby reducing the space occupied, so as to facilitate subsequent installation. At the same time, the second connecting column 213 can be used as a positioning structure and a fixing structure, which is used to fix the feed layer 3 and realize electrical connection with the feed layer 3, and can improve the stability of fixing and the stability of signal transmission at the same time.

[0043] In a possible implementation, the radiation layer 1 includes a radiation board 12, and a first copper foil layer 13 and a second copper foil layer 14 provided on two opposite surfaces of the radiation board 12, the second copper foil layer 14 is close to the feeding layer 3, and the first feeding hole 11 passes through the radiation board 12 and the second copper foil layer 14. The second copper foil layer 14 is located on one side of the radiation board 12 close to the connecting plate 211.

[0044] In this embodiment, by setting the first copper foil layer 13 and the second copper foil layer 14 on the radiation plate 12, the conductive property of the copper foil can be utilized to enhance the radiation performance of the antenna and improve the gain of the antenna. The second copper foil layer 14 is a copper foil pattern, which serves as the ground structure of the antenna so that the antenna can work normally.

[0045] In a possible implementation, a plurality of metal vias 111 are provided on the radiation plate 12, and the plurality of metal vias 111 are arranged around the first feeding hole 11, and the metal vias 111 are connected to the first copper foil layer 13 and the second copper foil layer 14. In this embodiment, eight metal vias 111 are arranged, and are evenly spaced around the first feeding hole 11 in a ring shape.

[0046] The metal vias 111 of this embodiment are used to connect the first copper foil layer 13 and the second copper foil layer 14, thereby facilitating copper plating so that the first copper foil layer 13 and the second copper foil layer 14 can be electrically connected. At the same time, the design of multiple metal vias 111 can effectively reduce the energy loss inside the antenna and improve the efficiency of the antenna. Due to the presence of the metal vias 111, the signal transmission between the feeding part and the radiation part is smoother and the energy loss is reduced.

[0047] In a possible implementation, the feed layer 3 includes a feed board 32 , and a third copper foil layer 33 and a microstrip signal line 34 disposed on a side of the feed board 32 away from the connection board 211 . The microstrip signal line 34 is connected to the third feed hole 31 .

[0048] Specifically, the third copper foil layer 33 and the microstrip signal line 34 provided on the feed board 32 can enable the antenna to have multiple signal transmission capabilities. The third copper foil layer 33 can enhance the radiation performance of the antenna, and the microstrip signal line 34 can transmit the received signal to the subsequent processing unit for processing.

[0049] In a possible implementation, the feed board 32 is provided with mounting holes, which match the second connection pillars 213. Specifically, there are 16 second connection pillars 213, and correspondingly, the mounting holes are also provided to be 16.

[0050] The mounting hole provided on the feed board 32 of the present embodiment corresponds to the second connecting column 213 , that is, the second connecting column 213 can be inserted into the mounting hole during installation, so that the feed board 32 is fixed on the connecting member 21 , and the second connecting column 213 can be electrically connected to the third copper foil layer 33 on the feed board 32 .

[0051] In a possible implementation, the feeding metal rod 22 is a copper rod. The copper rod as the feeding metal rod 22 has excellent electrical conductivity, which can ensure the stability and efficiency of the signal during transmission, and the copper rod is not easily oxidized and has good corrosion resistance, which can ensure the stability of the antenna during use.

[0052] In a possible implementation, the connector 21 is made of metal material. Specifically, the connector 21 of this embodiment is made of copper. The connector 21 made of metal material can optimize the signal transmission path, reduce signal loss and interference, and improve the efficiency of the antenna. At the same time, it has high mechanical strength and can ensure the stability and reliability of the antenna during use.

[0053] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of the embodiments of the present application, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the application product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0054] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A V2X antenna, characterized in that: The invention comprises a radiation layer and a feeding layer which are arranged opposite to each other, wherein the radiation layer and the feeding layer are electrically connected via an interconnection structure, wherein the interconnection structure comprises a connecting member and a feeding metal rod, wherein the connecting member is located between the radiation layer and the feeding layer, wherein the radiation layer is provided with a first feeding hole, the connecting member is provided with a second feeding hole, the feeding layer is provided with a third feeding hole, and the feeding metal rod passes through the first feeding hole, the second feeding hole and the third feeding hole in sequence.

2. The V2X antenna according to claim 1, characterized in that: The connecting member includes a connecting plate, a first connecting column and a second connecting column. The connecting plate has a first surface and a second surface arranged opposite to each other. The first connecting column is arranged on the first surface and connected to the radiation layer. The second connecting column is arranged on the second surface and connected to the feed layer.

3. The V2X antenna according to claim 2, characterized in that: The second feeding hole passes through the connecting plate and the first connecting column. There are a plurality of second connecting columns, and the plurality of second connecting columns are spaced around the second feeding hole.

4. The V2X antenna according to claim 2, characterized in that: The feed layer is attached to the second surface, and the second connecting column penetrates the feed layer.

5. The V2X antenna according to claim 1, characterized in that: The radiation layer includes a radiation plate, and a first copper foil layer and a second copper foil layer arranged on two opposite surfaces of the radiation plate, the second copper foil layer is close to the feeding layer, and the first feeding hole penetrates the radiation plate and the second copper foil layer.

6. The V2X antenna according to claim 5, characterized in that: The radiation plate is provided with a plurality of metal vias, the plurality of metal vias are arranged around the first feeding hole, and the metal vias are connected with the first copper foil layer and the second copper foil layer.

7. The V2X antenna according to claim 2, characterized in that: The feeding layer includes a feeding board, a third copper foil layer and a microstrip signal line arranged on a side of the feeding board away from the connecting board, and the microstrip signal line is connected to the third feeding hole.

8. The V2X antenna according to claim 7, characterized in that: The feed board is provided with a mounting hole, and the mounting hole matches the second connecting column.

9. The V2X antenna according to any one of claims 1 to 8, characterized in that: The feeding metal rod is a copper rod.

10. The V2X antenna according to any one of claims 1 to 8, characterized in that: The connecting piece is made of metal material.

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