An integrated car antenna with satellite communication and high-precision GNSS

Abstract

This utility model discloses a fin-type vehicle-mounted antenna integrating Tiantong satellite communication and high-precision GNSS, including a fin-type top cover. Its key feature is that it further includes a waterproof pad fixedly connected to the fin-type top cover. Between the fin-type top cover and the waterproof pad, there is a base, a circuit board, an antenna module, and a navigation module. The antenna module and navigation module are electrically connected to the circuit board, and the antenna module and navigation module are located on the same plane of the circuit board. The distance W between the center of the antenna module and the center of the navigation module is 65-75mm. The circuit board is fixedly connected to the base. This utility model places GNSS and Tiantong antennas independently within the fin-type antenna, requiring no host software support and being compatible with different host platforms.

Description

Technical Field

[0001] This utility model belongs to the field of vehicle-mounted antenna technology, and in particular relates to a fin-type vehicle-mounted antenna that integrates Tiantong satellite communication and high-precision GNSS. Background Technology

[0002] With the globalization of automobiles, the requirements for intelligent driving are gradually increasing. First, it needs to be compatible with more satellite systems, such as Tiantong, Beidou GPS, Galileo, etc., and at the same time, it also needs to support emergency rescue (ecall) and remote upgrades (OTA).

[0003] However, in the current traditional solution, the GNSS and Tiantong satellite communication antennas are installed independently, which occupies a lot of space in the vehicle and is easily affected by the electromagnetic environment inside the vehicle. Moreover, the Tiantong transmitting frequency band (1980-2010MHz) and the GNSS receiving frequency band (L1 / L2 / L5) are prone to interference, affecting the positioning accuracy. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A fin-type vehicle-mounted antenna integrating Tiantong satellite communication and high-precision GNSS includes a fin-type top cover, characterized in that: it also includes a waterproof pad fixedly connected to the fin-type top cover, and a base, circuit board, antenna module, and navigation module are provided between the fin-type top cover and the waterproof pad;

[0006] The antenna module and navigation module are electrically connected to the circuit board. The antenna module and navigation module are located on the same plane of the circuit board. The distance between the center of the antenna module and the center of the navigation module is denoted as W, and the distance W is 65-75mm.

[0007] The circuit board is fixedly connected to the base.

[0008] Furthermore, the antenna module is located at the tip of the fin-shaped cover, and the navigation module is located at the tail end of the fin-shaped cover.

[0009] Furthermore, the base is provided with a through hole for passing through a wire harness.

[0010] Furthermore, the base is made of zinc.

[0011] Furthermore, the antenna module is a Tiantong antenna with left-hand circular polarization, and the navigation module is a GNSS antenna with right-hand circular polarization.

[0012] Furthermore, the wiring harness includes an antenna wiring harness and a navigation antenna wiring harness.

[0013] Furthermore, the waterproof pad is provided with a fastener on the side away from the fin-shaped top cover, the fastener being used to secure the base to the vehicle body.

[0014] The beneficial effects of this utility model are:

[0015] 1. The Tiantong antenna of this utility model adopts left-hand circular polarization (LHCP), and the GNSS antenna adopts right-hand circular polarization (RHCP). Combined with the spacing layout, natural isolation ≥25dB ​​is achieved. Moreover, the independent antenna module does not rely on host software and can be adapted to different vehicle platforms.

[0016] 2. The present invention features a slotted zinc alloy reflective base plate with an integrated LNA shielding cover, reducing assembly parts and further reducing electromagnetic interference inside the vehicle. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model (green represents the circuit board);

[0018] Figure 2 This is an exploded view of the internal structure of this utility model after removing the fin-type top cover (red represents the base);

[0019] Figure 3 This is a top view of the circuit board of this utility model;

[0020] Figure 4 This is a schematic diagram of the bottom of the waterproof pad of this utility model;

[0021] The parts in the attached diagram are labeled as follows:

[0022] 1. Fin-type top cover; 2. Waterproof pad; 3. Circuit board; 4. Antenna module; 5. Navigation module;

[0023] 6. Base; 7. Wiring harness; 71. Antenna wiring harness; 72. Navigation antenna wiring harness; 8. Fasteners. Detailed Implementation

[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0025] Example 1:

[0026] like Figures 1 to 4As shown, a fin-type vehicle-mounted antenna integrating Tiantong satellite communication and high-precision GNSS includes a fin-type top cover 1. Its distinguishing feature is that it further includes a waterproof pad 2 fixedly connected to the fin-type top cover 1. A base 6, a circuit board 3, an antenna module 4, and a navigation module 5 are also provided between the fin-type top cover 1 and the waterproof pad 2; the circuit board 3 is fixedly connected to the base 6. The wiring harness 7 includes an antenna wiring harness 71 and a navigation antenna wiring harness 72. The base 6 has a through hole for the wiring harness 7 to pass through. Considering isolation, the base 6 is made of zinc.

[0027] The antenna module 4 and navigation module 5 are electrically connected to the circuit board 3. The antenna module 4 and navigation module 5 are located on the same plane of the circuit board. The distance between the center of the antenna module 4 and the center of the navigation module 5 is denoted as W, and the distance W is 65-75mm.

[0028] Preferably, the antenna module 4 is located at the tip of the fin-shaped cover 1, and the navigation module 5 is located at the tail end of the fin-shaped cover 1. Specifically, the antenna module 4 is a GNSS antenna with left-hand circular polarization, and the navigation module 5 is a GNSS antenna with right-hand circular polarization. A fastener 8 is also provided on the side of the waterproof pad 2 away from the fin-shaped cover 1, and the fastener 8 is used to fix the base 6 to the vehicle body.

[0029] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A finned vehicle antenna integrating satellite communication and high-precision GNSS, comprising a finned upper cover (1), characterized in that: It also includes a waterproof pad (2) fixedly connected to the fin-type top cover (1), and a base (6), a circuit board (3), an antenna module (4), and a navigation module (5) are provided between the fin-type top cover (1) and the waterproof pad (2); The antenna module (4) and navigation module (5) are electrically connected to the circuit board (3). The antenna module (4) and navigation module (5) are located on the same plane of the circuit board. The distance between the center of the antenna module (4) and the center of the navigation module (5) is W, and the distance W is 65-75mm. The circuit board (3) is fixedly connected to the base (6).

2. The finned antenna according to claim 1, characterized in that: The antenna module (4) is located at the tip of the fin cover (1), and the navigation module (5) is located at the tail end of the fin cover (1).

3. The finned antenna according to claim 1, wherein: The base (6) is provided with a through hole for passing through the wire harness (7).

4. The finned antenna according to claim 1, wherein: The base (6) is made of zinc.

5. The fin-type vehicle-mounted antenna integrating Tiantong satellite communication and high-precision GNSS according to claim 1, characterized in that: The antenna module (4) is a Tiantong antenna, which adopts left-hand circular polarization, and the navigation module (5) is a GNSS antenna, which adopts right-hand circular polarization.

6. The finned antenna according to claim 3, characterized in that: The wiring harness (7) includes an antenna wiring harness (71) and a navigation antenna wiring harness (72).

7. A fin-type vehicle-mounted antenna integrating Tiantong satellite communication and high-precision GNSS according to claim 3, characterized in that: The waterproof pad (2) is also provided with a fastener (8) on the side away from the fin cover (1), which is used to fix the base (6) to the car body.

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