V2X antenna and antenna integrated structure thereof

Abstract

The utility model discloses a V2X antenna comprising a ceramic layer, the bottom surface of the ceramic layer is provided with an antenna floor, the top surface of the ceramic layer is provided with a metal radiation surface, and a metal column passes through the middle part of the ceramic layer; the metal radiating surface comprises a plurality of parasitic units, a plurality of antenna radiating surfaces and a metal surface, the plurality of antenna radiating surfaces are arranged in an area enclosed by the plurality of parasitic units, and the metal surface is arranged in an area enclosed by the plurality of antenna radiating surfaces; the metal surface is connected to the antenna floor through the metal columns; the plurality of parasitic units can change the resonant frequency of the V2X antenna, and the plurality of antenna radiation surfaces can be coupled through the metal columns. The utility model also discloses an antenna integration structure. The V2X antenna provided by the utility model is reasonable in structural design, only has the superposed height of the metal radiating surface, the ceramic layer and the antenna floor, greatly reduces the height of the V2X antenna, and is convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of V2X antennas, and in particular to a V2X antenna and an antenna integrated structure thereof. Background Art

[0002] V2X, or Vehicle to Everything, is one of the supporting technologies for smart vehicles and intelligent transportation. It enables information exchange between vehicles and various elements in their surroundings. Through sensors, cameras, and wireless connectivity, V2X technology enables vehicles to share real-time information with drivers, other vehicles, pedestrians, and transportation infrastructure. This information exchange supports both manual and autonomous driving, making it a key technology for future intelligent transportation systems. V2X encompasses vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), and vehicle-to-pedestrian (V2P). The advantage of V2X lies in its real-time information exchange, enabling vehicles to proactively detect potential hazards and take appropriate evasive action. It also combines real-time traffic information with intelligent navigation functions, making route planning easier for drivers and improving driving comfort and convenience.

[0003] The existing V2X antenna is too high to be installed. Utility Model Content

[0004] The purpose of the utility model is to provide a V2X antenna to solve the technical problem that the existing V2X antenna is too high and inconvenient to install.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the present invention provides a V2X antenna, including a ceramic layer, the bottom surface of the ceramic layer is provided with an antenna floor, the top surface of the ceramic layer is provided with a metal radiating surface, and a metal column passes through the middle of the ceramic layer; the metal radiating surface includes a plurality of parasitic units and a plurality of antenna radiating surfaces and a metal surface, and the plurality of antenna radiating surfaces are arranged in an area enclosed by the plurality of parasitic units, and the metal surface is arranged in an area enclosed by the plurality of antenna radiating surfaces, and the metal surface is connected to the antenna floor through the metal column; the plurality of parasitic units can change the resonant frequency of the V2X antenna, and the plurality of antenna radiating surfaces can be coupled through the metal column.

[0006] Furthermore, the parasitic unit is provided with chamfers or grooves.

[0007] Furthermore, the parasitic unit is a first parasitic unit or a second parasitic unit, the first parasitic unit and the second parasitic unit are spaced apart from each other, and an area of the first parasitic unit is larger than an area of the second parasitic unit.

[0008] Furthermore, the parasitic unit is square or rectangular.

[0009] Furthermore, a plurality of the parasitic units are distributed in a rectangular shape, and a plurality of the antenna radiation surfaces are distributed in a rectangular shape.

[0010] Furthermore, the antenna radiation surface is pentagonal.

[0011] Furthermore, there is a gap between two adjacent parasitic units, there is a gap between two adjacent antenna radiation surfaces, and there is a gap between the parasitic unit and the antenna radiation surface and the metal surface.

[0012] Furthermore, the metal column and the metal surface are both cylindrical and coaxially arranged, and the diameter of the metal surface is larger than the diameter of the metal column.

[0013] Furthermore, the metal column is connected to a PCB board.

[0014] The present utility model also provides an antenna integration structure, including a GNSS antenna and a V2X antenna as described in any of the above technical solutions, wherein the V2X antenna is superimposed on the GNSS antenna.

[0015] In summary, the technical solution of the present invention has the following beneficial effects: The structural design of the present invention is reasonable. (1) The ceramic layer includes a bottom surface of the ceramic layer, a metal radiation surface is provided on the top surface of the ceramic layer, and a metal column passes through the middle of the ceramic layer; thereby, the ceramic layer can be used to play a supporting role. (2) The metal radiation surface includes a plurality of parasitic units, a plurality of antenna radiation surfaces, and a metal surface. The plurality of antenna radiation surfaces are arranged in an area surrounded by the plurality of parasitic units, and the metal surface is arranged in an area surrounded by the plurality of antenna radiation surfaces. The metal surface is connected to the antenna floor through a metal column; thereby, the metal radiation surface can be connected to the antenna floor through the metal column. (3) The resonant frequency of the V2X antenna can be changed by the plurality of parasitic units, and the plurality of antenna radiation surfaces can be coupled through the metal column; thereby, the resonant frequency of the entire V2X antenna can be optimized by the plurality of parasitic units, thereby expanding the antenna's usable bandwidth. At the same time, the plurality of antenna radiation surfaces can be coupled through the metal column, thereby synthesizing the current path to obtain horizontal omnidirectional radiation, which is similar to the form of a dipole antenna. From this analysis, it can be seen that the present invention not only has good directionality and meets the requirements of V2X use, but also, through reasonable antenna layout and antenna scheme design, has only the height of the metal radiation surface, ceramic layer, and antenna floor superimposed on each other, which greatly reduces the height of the V2X antenna and facilitates installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 1 is a schematic diagram of the three-dimensional structure of the antenna integrated structure of Example 1 of the present utility model;

[0017] Figure 2 3D schematic diagram of the V2X antenna according to Embodiment 1 of the present invention;

[0018] Figure 3 2 is a schematic diagram of a three-dimensional structure of a V2X antenna according to Embodiment 1 of the present invention from another perspective;

[0019] Figure 4 3D schematic diagram of the ceramic layer of the V2X antenna according to Example 1 of the present utility model;

[0020] Figure 5 3D schematic diagram of the V2X antenna of Example 1 of the present invention with the ceramic layer removed;

[0021] Figure 6 2 is a schematic diagram of a top view of the V2X antenna according to Embodiment 2 of the present invention;

[0022] Figure 7 2 is a schematic side view of the V2X antenna structure of Example 2 of the present utility model;

[0023] Explanation of reference numerals: 1-metal radiation surface, 2-ceramic layer, 3-antenna floor, 4-metal column, 5-GNSS antenna.

[0024] 101 - parasitic element, 102 - antenna radiation surface, 103 - metal surface. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention, but this does not constitute a limitation on the protection scope of the present invention.

[0026] In this utility model, for a clearer description, the following explanation is made: the observer faces the Figure 1 For observation, the upper side of the observer is defined as "up" and the lower side of the observer is defined as "down". It should be noted that the terms "front end", "rear end", "left side", "right side", "middle", "upper", "lower", etc. in this document indicate directions or positional relationships based on the directions or positional relationships set in the accompanying drawings. They are only used to facilitate the clear description of the present invention and do not indicate or imply that the structure or component referred to must have a specific direction or be constructed in a specific direction. Therefore, they should not be understood as limiting the present invention. In addition, the terms "first", "second", "third", and "fourth" are used only for the purpose of clarity or simplification of description and should not be understood as indicating or implying relative importance or quantity.

[0027] See also Figures 1 to 7This embodiment provides a V2X antenna, comprising a ceramic layer 2, an antenna floor 3 being provided on the bottom surface of the ceramic layer 2, a metal radiation surface 1 being provided on the top surface of the ceramic layer 2, and a metal column 4 passing through the middle of the ceramic layer 2; the metal radiation surface 1 comprising a plurality of parasitic units 101, a plurality of antenna radiation surfaces 102, and a metal surface 103, the plurality of antenna radiation surfaces 102 being arranged in an area enclosed by the plurality of parasitic units 101, the metal surface 103 being arranged in an area enclosed by the plurality of antenna radiation surfaces 102, and the metal surface 103 being connected to the antenna floor 3 via the metal column 4; the plurality of parasitic units 101 can change the resonant frequency of the V2X antenna, and the plurality of antenna radiation surfaces 102 can be coupled via the metal column 4. Function: (1) By comprising a ceramic layer, an antenna floor being provided on the bottom surface of the ceramic layer, a metal radiation surface being provided on the top surface of the ceramic layer, and a metal column passing through the middle of the ceramic layer, the ceramic layer can be used to play a supporting role. (2) The metal radiation surface includes several parasitic units, several antenna radiation surfaces and metal surfaces. Several antenna radiation surfaces are set in the area surrounded by several parasitic units, and the metal surface is set in the area surrounded by several antenna radiation surfaces. The metal surface is connected to the antenna floor through a metal column; thus, the metal radiation surface can be connected to the antenna floor by using a metal column. (3) The resonant frequency of the V2X antenna can be changed by using several parasitic units, and several antenna radiation surfaces can be coupled through the metal column; thus, the resonant frequency of the entire V2X antenna can be optimized by using several parasitic units, thereby expanding the antenna's usable bandwidth. At the same time, several antenna radiation surfaces can be coupled through the metal column, and then horizontal omnidirectional radiation can be obtained through current path synthesis, which is similar to the form of a dipole antenna. From this analysis, it can be seen that the utility model not only has good directionality and meets the use requirements of V2X, but also, through reasonable antenna layout and antenna scheme design, has only the height of the metal radiation surface, ceramic layer and antenna floor superimposed, which greatly reduces the height of the V2X antenna and facilitates installation.

[0028] Specifically, the parasitic unit 101 is provided with chamfers or grooves. Purpose: Because the parasitic unit is also a debugging point in actual production, the parasitic unit 101 can change the resonant frequency of the antenna by chamfering or cutting grooves, thereby improving the manufacturability and debuggability of actual production.

[0029] Specifically, parasitic element 101 is either a first parasitic element or a second parasitic element. The first parasitic element and the second parasitic element are spaced apart, and the area of the first parasitic element is larger than the area of the second parasitic element. Purpose: Such differentiated parasitic element size configuration can better utilize the parasitic element's function of optimizing the resonant frequency of the overall antenna.

[0030] Specifically, the parasitic unit 101 is in a square or rectangular shape. Purpose: Such a shape can be easily matched with chamfering or cutting grooves to change the resonant frequency of the antenna.

[0031] Specifically, a plurality of parasitic units 101 are distributed in a rectangular shape, and a plurality of antenna radiating surfaces 102 are distributed in a rectangular shape. Purpose: Such a position distribution is conducive to the coordination between the parasitic units 101, the antenna radiating surfaces 102, and the metal pillars.

[0032] Specifically, the antenna radiation surface 102 is pentagonal. Function: Such a shape setting can better couple through the metal pillars and obtain horizontal omnidirectional radiation through the synthesis of current paths.

[0033] Preferably, the ceramic layer is a rectangular body, the number of the antenna radiation surfaces 102 is four, and the number of the parasitic units is eight.

[0034] Specifically, there is a gap between two adjacent parasitic units 101, a gap between two adjacent antenna radiation surfaces 102, and a gap between the parasitic unit 101 and the antenna radiation surface 102 and the metal surface 103. Function: The setting of the gap can avoid mutual interference.

[0035] Specifically, the metal post 4 and the metal surface 103 are both cylindrical and coaxially arranged, and the diameter of the metal surface 103 is larger than the diameter of the metal post 4. Function: This can better achieve the connection between the metal radiation surface and the antenna ground through the metal post 4.

[0036] Specifically, the metal pillar 4 is connected to the PCB. Function: to achieve direct connection between the metal radiation surface and the antenna floor and the PCB.

[0037] The present invention also provides an integrated antenna structure comprising a GNSS antenna 5 and a V2X antenna according to any of the aforementioned technical solutions, with the V2X antenna superimposed above the GNSS antenna 5. Advantage: Due to the V2X antenna's low profile, its integration with the GNSS antenna can also reduce the antenna footprint. It is worth noting that this V2X antenna can be directly superimposed above the GNSS antenna without affecting the performance of the existing GNSS antenna, and its orientation can be optimized by adjusting the metal body of the metal radiating surface.

[0038] In summary, the present invention solves the problem of excessive V2X height through reasonable antenna layout and antenna scheme design, meets the use requirements, reduces installation difficulty, reduces installation steps, and reduces manufacturing costs.

[0039] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A V2X antenna, comprising a ceramic layer (2), characterized in that: The bottom surface of the ceramic layer (2) is provided with an antenna floor (3), the top surface of the ceramic layer (2) is provided with a metal radiation surface (1), and a metal column (4) passes through the middle of the ceramic layer (2); the metal radiation surface (1) includes a plurality of parasitic units (101), a plurality of antenna radiation surfaces (102), and a metal surface (103); the plurality of antenna radiation surfaces (102) are arranged in an area enclosed by the plurality of parasitic units (101), the metal surface (103) is arranged in an area enclosed by the plurality of antenna radiation surfaces (102), and the metal surface (103) is connected to the antenna floor (3) through the metal column (4); the plurality of parasitic units (101) can change the resonant frequency of the V2X antenna, and the plurality of antenna radiation surfaces (102) can be coupled through the metal column (4).

2. The V2X antenna according to claim 1, wherein: The parasitic unit (101) is provided with chamfers or grooves.

3. The V2X antenna according to claim 1, wherein: The parasitic unit (101) is a first parasitic unit or a second parasitic unit, the first parasitic unit and the second parasitic unit are arranged at intervals, and the area of the first parasitic unit is larger than the area of the second parasitic unit.

4. The V2X antenna according to claim 1, wherein: The parasitic unit (101) is square or rectangular.

5. The V2X antenna according to claim 1, wherein: A plurality of the parasitic units (101) are distributed in a rectangular shape, and a plurality of the antenna radiation surfaces (102) are distributed in a rectangular shape.

6. The V2X antenna according to any one of claims 1 to 5, characterized in that: The antenna radiation surface (102) is pentagonal.

7. The V2X antenna according to any one of claims 1 to 5, characterized in that: There is a gap between two adjacent parasitic units (101), there is a gap between two adjacent antenna radiation surfaces (102), and there is a gap between the parasitic unit (101) and the antenna radiation surface (102) and the metal surface (103).

8. The V2X antenna according to any one of claims 1 to 5, characterized in that: The metal column (4) and the metal surface (103) are both cylindrical and coaxially arranged, and the diameter of the metal surface (103) is greater than the diameter of the metal column (4).

9. The V2X antenna according to any one of claims 1 to 5, characterized in that: The metal column (4) is connected to the PCB board.

10. An antenna integrated structure, comprising a GNSS antenna (5), characterized in that: It also includes the V2X antenna according to any one of claims 1 to 9, wherein the V2X antenna is superimposed on the GNSS antenna (5).

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