Vehicle-mounted 5g antenna

Abstract

The utility model relates to a kind of vehicle-mounted 5G antennas, including substrate, PCB oscillator, metal oscillator, radiating oscillator, connector, the PCB oscillator with the substrate connection;The metal oscillator includes first metal oscillator, second metal oscillator, the first metal oscillator with the substrate connection, the second metal oscillator is simultaneously with the PCB oscillator, first metal oscillator connection;The radiating oscillator is connected on the PCB oscillator;The connector is connected on the substrate.The utility model is in the form of combination of PCB oscillator and metal oscillator, both participate in radiation, the low-frequency coverage range of antenna is 698-960MHz, so as to improve bandwidth, and better directivity is obtained;In addition, the structure of whole antenna is compact, small in size, and it is convenient to flexibly integrated into car.

Description

Technical Field

[0001] This utility model relates to the field of automotive antenna technology, and in particular to a vehicle-mounted 5G antenna. Background Technology

[0002] Vehicles are equipped with various in-vehicle electronic devices, such as radio receivers, touchscreen displays, navigation systems, and mobile phones. These devices are connected to the vehicle's antenna via cables. As a crucial component of the vehicle, the antenna receives signals from the outside world and transmits them to other in-vehicle electronic devices. Currently, 5G communication technology is being widely adopted in the automotive industry. Compared to 4G frequency bands, 5G frequency bands offer significantly more spectrum. Therefore, to accommodate both 4G and 5G frequency bands and improve adaptability and ease of use, it is necessary to design new in-vehicle antennas that are compatible with both 4G and 5G frequency bands.

[0003] 5G networks use multi-band communication, which places higher demands on antenna design. Existing vehicle antennas typically only support a single frequency band or limited bandwidth, making it difficult to meet the needs of 5G multi-band communication. At the same time, it is also required that the antenna size be as small as possible, but the antennas in the current technology are relatively large, making it difficult to integrate them flexibly into vehicles and susceptible to interference from the surrounding environment. Small-sized antennas are also difficult to cover low-frequency bands (698-960MHz). Summary of the Invention

[0004] The purpose of this invention is to provide a vehicle-mounted 5G antenna.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A vehicle-mounted 5G antenna includes:

[0007] substrate,

[0008] PCB oscillator, wherein the PCB oscillator is connected to the substrate;

[0009] The metal oscillator includes a first metal oscillator and a second metal oscillator. The first metal oscillator is connected to the substrate, and the second metal oscillator is connected to both the PCB oscillator and the first metal oscillator.

[0010] A radiating oscillator, wherein the radiating oscillator is connected to the PCB oscillator;

[0011] A connector, which is attached to the substrate.

[0012] Preferably, in the above technical solution, the PCB vibrator and the first metal vibrator are perpendicular to the substrate; the second metal vibrator is parallel to the substrate. Since the installation environment inside the vehicle is mostly horizontal, using a PCB vibrator perpendicular to the substrate can ensure that the antenna maintains vertical polarization within the 5G frequency range.

[0013] Preferably, in the above technical solution, the lower ends of the PCB oscillator and the first metal oscillator are welded to the substrate; and the second metal oscillator is welded to the upper ends of the PCB oscillator and the first metal oscillator.

[0014] Preferably, in the above technical solution, the radiating oscillator covers the surface of the PCB oscillator, and the surface is the surface facing away from the first metal oscillator.

[0015] Preferably, in the above technical solution, the radiating oscillator includes an oscillator branch and a transmission line. The oscillator branch is connected to a matching circuit through the transmission line, and the resonant frequency within the 5G band can be adjusted through the matching circuit.

[0016] Preferably, in the above technical solution, the first metal oscillator is a grounding branch, and the second metal oscillator is a radiating branch.

[0017] Preferably, the resonant frequencies that the antenna can excite include 698-960MHz, 1700-2700MHz, and 3300-5000MHz.

[0018] Preferably, in the above technical solution, the size of the substrate is no greater than 110mm × 65mm, and the size of the antenna is small, which is conducive to concealed installation inside the vehicle.

[0019] Preferably, the substrate described above is a PCB substrate.

[0020] Preferably, the connector described in the above technical solution is a Fakra connector.

[0021] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0022] This invention combines a PCB vibrator and a metal vibrator, both of which participate in radiation. The low-frequency coverage range of the antenna is 698-960MHz, thereby improving bandwidth and achieving better directivity. In addition, the entire antenna has a compact structure and small size, making it easy to integrate flexibly into automobiles. Attached Figure Description

[0023] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Appendix Figure 2This is a schematic diagram showing the connection between the radiating oscillator and the PCB oscillator in this utility model;

[0025] Appendix Figure 3 This is one embodiment of the matching circuit in this utility model;

[0026] Appendix Figure 4 The S-parameters of this invention are defined within the 5G frequency band.

[0027] In the attached diagrams above:

[0028] 1. Substrate;

[0029] 2. PCB oscillator;

[0030] 30. First metal oscillator; 31. Second metal oscillator;

[0031] 4. Radiating oscillator; 40. Oscillator branch; 41. Transmission line; 42. Matching circuit;

[0032] 5. Connectors. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] like Figure 1 The vehicle-mounted 5G antenna shown includes a substrate 1, a PCB vibrator 2, a metal vibrator, a radiating vibrator 4, and a connector 5. Specifically:

[0036] The substrate size is no larger than 110mm × 65mm.

[0037] The substrate 1 is a PCB substrate. The substrate 1 serves as the carrier of the entire antenna, and all the elements are soldered onto the substrate 1. The smaller the size of the substrate 1, the smaller the size of the antenna, which is beneficial for concealed installation inside the vehicle. In this embodiment, the size of the substrate 1 is 108mm × 62mm.

[0038] PCB vibrator 2 is connected to substrate 1. In this embodiment, PCB vibrator 2 is perpendicular to substrate 1, and the lower end of PCB vibrator 2 is soldered to substrate 1. Since the installation environment inside a vehicle is mostly horizontal, using PCB vibrator 2 perpendicular to substrate 1 ensures that the antenna maintains vertical polarization within the 5G frequency range.

[0039] The metal oscillator adopts a PIFA (Peripherally Integrated Component Assembly) design, specifically including a first metal oscillator 30 and a second metal oscillator 31. The first metal oscillator 30 is a grounding branch, and the second metal oscillator 31 is a radiating branch. The first metal oscillator 30 is connected to the substrate 1, and the second metal oscillator 31 is simultaneously connected to the PCB oscillator 2 and the first metal oscillator 30. In this embodiment: the first metal oscillator 30 is perpendicular to the substrate 1, and its lower end is welded to the substrate 1; the second metal oscillator 31 is parallel to the substrate 1, and its upper end is welded to the PCB oscillator 2 and the first metal oscillator 30.

[0040] like Figure 2 As shown: The radiating oscillator 4 is connected to the PCB oscillator 2. In this embodiment: the radiating oscillator 4 covers the surface of the PCB oscillator 2, and this surface is the surface facing away from the first metal oscillator 30.

[0041] The radiating oscillator 4 includes an oscillator branch 40 and a transmission line 41. The transmission line 41 can be, for example, a microstrip line. The oscillator branch 40 is connected to a matching circuit 42 via the transmission line 41. The resonant frequency within the 5G band can be adjusted via the matching circuit 42. The matching circuit 42 is not related to the inventive point of this application and can adopt any structure. In this embodiment, an optional matching circuit 42 is provided, such as... Figure 3 As shown, transmission line 41 can be connected to AN101 in matching circuit 42.

[0042] Connector 5 is connected to substrate 1, and specifically, the pins of connector 5 are soldered to the grounding point of substrate 1. In this embodiment, connector 5 is a Fakra connector, and a MiniFakra connector can be further selected.

[0043] The antenna in this embodiment can excite resonant frequencies of 698-960MHz, 1700-2700MHz, and 3300-5000MHz.

[0044] like Figure 4 The figure shows the S-parameters of the antenna in this embodiment within the 5G band. It can be seen that the antenna has a relatively good impedance bandwidth.

[0045] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A vehicle-mounted 5G antenna, characterized in that: include: substrate, PCB oscillator, wherein the PCB oscillator is connected to the substrate; The metal oscillator includes a first metal oscillator and a second metal oscillator. The first metal oscillator is connected to the substrate, and the second metal oscillator is connected to both the PCB oscillator and the first metal oscillator. A radiating oscillator, wherein the radiating oscillator is connected to the PCB oscillator; A connector, which is attached to the substrate.

2. The vehicle-mounted 5G antenna according to claim 1, characterized in that: The PCB vibrator and the first metal vibrator are perpendicular to the substrate; the second metal vibrator is parallel to the substrate.

3. The vehicle-mounted 5G antenna according to claim 1 or 2, characterized in that: The lower ends of the PCB oscillator and the first metal oscillator are welded to the substrate; the upper ends of the second metal oscillator and the first metal oscillator are welded to each other.

4. The vehicle-mounted 5G antenna according to claim 1, characterized in that: The radiating oscillator covers the surface of the PCB oscillator, and this surface is the surface facing away from the first metal oscillator.

5. The vehicle-mounted 5G antenna according to claim 1, characterized in that: The radiating oscillator includes an oscillator branch and a transmission line, and the oscillator branch is connected to a matching circuit through the transmission line.

6. The vehicle-mounted 5G antenna according to claim 1, characterized in that: The first metal oscillator is a grounding branch, and the second metal oscillator is a radiating branch.

7. The vehicle-mounted 5G antenna according to any one of claims 1 to 6, characterized in that: The resonant frequencies that the antenna can be excited at include 698-960MHz, 1700-2700MHz, and 3300-5000MHz.

8. The vehicle-mounted 5G antenna according to claim 1, characterized in that: The size of the substrate is no greater than 110mm × 65mm.

9. The vehicle-mounted 5G antenna according to claim 1, characterized in that: The substrate is a PCB substrate.

10. The vehicle-mounted 5G antenna according to claim 1, characterized in that: The connector mentioned is a Fakra connector.

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