Vehicle-mounted stable multi-path transmission MIMO antenna
The attitude of the vehicle-mounted MIMO antenna is dynamically adjusted by a motor-driven rotating arm and rotating shaft system. By utilizing the spatial diversity characteristics of MIMO technology, the problem of signal blockage in complex environments of traditional vehicle-mounted MIMO antennas is solved, and stable multi-channel signal transmission is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 铭兰南京电子有限公司
- Filing Date
- 2025-06-24
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional vehicle-mounted MIMO antennas cannot dynamically adjust the antenna angle according to the vehicle's driving posture, resulting in signal blockage, transmission rate fluctuations, or interruptions in complex environments.
A vehicle-mounted stable multi-channel transmission MIMO antenna was designed. The rotating arm and rotating shaft are driven by a motor, and the rotating frame is linked to adjust the attitude. Combining the spatial diversity characteristics of multi-antenna MIMO technology, it can adapt to different signal sources, expand the coverage area and stabilize the signal reception.
It enables stable signal capture and reception in complex environments, improves the signal strength and quality of multi-channel transmission, and ensures the stability of vehicle data transmission.
Smart Images

Figure CN224472703U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of antenna technology, and in particular to a vehicle-mounted stable multi-channel transmission MIMO antenna. Background Technology
[0002] With the development of vehicle-to-everything (V2X) technology, the demand for high-speed and stable data transmission in vehicle communication systems is increasing. MIMO (Multiple-Input Multiple-Output) antennas can effectively improve transmission rates and system capacity through spatial diversity and multiplexing technologies.
[0003] However, traditional vehicle-mounted MIMO antennas are mostly fixed in place, making it impossible to dynamically adjust the antenna angle according to the vehicle's driving posture (such as climbing hills or turning) or the direction of the signal source. This results in signal obstruction in complex environments such as tunnels and high-rise building complexes, leading to transmission rate fluctuations or interruptions. For example, when a vehicle is traveling at high speed, a fixed antenna cannot be continuously aligned with the base station, significantly reducing diversity gain. To address these issues, a vehicle-mounted stable multi-path transmission MIMO antenna is proposed. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a vehicle-mounted stable multi-channel transmission MIMO antenna, which aims to improve the problem that the antenna angle cannot be automatically adjusted to receive signals in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A vehicle-mounted stable multi-channel transmission MIMO antenna includes a communication box. A motor is fixedly connected inside the communication box. A rotating arm is fixedly connected to the drive end of the motor. A rotating shaft is fixedly connected to one end of the rotating arm. Support arms are fixedly connected to both sides of the communication box. A rotating column 1 is fixedly connected to one end of the support arm. A common rotating frame is fixedly connected to the outside of multiple rotating columns 1. Multiple rotating columns 2 are fixedly connected to the outside of the rotating frame. Multiple communication lines are fixedly connected to the top of the rotating shaft.
[0007] As a further description of the above technical solution:
[0008] A support plate is fixedly connected to the bottom of the communication box, and an adhesive plate is fixedly connected to the bottom of the support plate. Multiple connection ports are provided inside the communication box.
[0009] As a further description of the above technical solution:
[0010] The external parts of the plurality of rotating columns 2 are rotatably connected to the interior of the rotating shaft;
[0011] As a further description of the above technical solution:
[0012] The rotating arm is externally rotatably connected to the outside of the communication box;
[0013] As a further description of the above technical solution:
[0014] The function of the communication line is to receive external signals;
[0015] As a further description of the above technical solution:
[0016] The support arm serves as an external support;
[0017] As a further description of the above technical solution:
[0018] The purpose of the adhesive board is to be placed in different external locations;
[0019] As a further description of the above technical solution:
[0020] The multiple connection ports serve as multi-line connections.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, a motor drives the rotating arm and rotating shaft, which in turn adjust the posture of the rotating frame. The communication line uses a MIMO-adapted signal source. The support arm ensures stability, and the support plate and adhesive plate are used for fixation. The connection port supports multi-channel transmission. Attached Figure Description
[0023] Figure 1 This is a three-dimensional schematic diagram of a vehicle-mounted stable multi-channel transmission MIMO antenna proposed in this utility model;
[0024] Figure 2 This is a schematic diagram of the rotating frame of a vehicle-mounted stable multi-channel transmission MIMO antenna proposed in this utility model;
[0025] Figure 3 This is a schematic diagram of the support arm of a vehicle-mounted stable multi-channel transmission MIMO antenna proposed in this utility model;
[0026] Figure 4 This is a schematic diagram of the adhesive plate structure of a vehicle-mounted stable multi-channel transmission MIMO antenna proposed in this utility model.
[0027] Legend:
[0028] 1. Communication box; 2. Motor; 3. Rotating arm; 4. Rotating shaft; 5. Support arm; 6. Rotating column one; 7. Rotating frame; 8. Rotating column two; 9. Communication line; 10. Support plate; 11. Adhesive plate; 12. Connection port. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Reference Figures 1 to 4 This utility model provides an embodiment of a vehicle-mounted stable multi-channel transmission MIMO antenna, including a communication box 1. The communication box 1 is designed as the core carrier and control unit of the entire antenna device. A motor 2 is fixedly connected inside the communication box 1, serving as a power source component that outputs torque through its drive end. A rotating arm 3 is fixedly connected to the drive end of the motor 2, serving as a power transmission and torque conversion component. The rotating arm 3 is rotatably connected to the outside of the communication box 1. A rotating shaft 4 is fixedly connected to one end of the rotating arm 3, which uses the power transmitted from the rotating arm 3 to adjust its spatial angle and direction. Support arms 5 are fixedly connected to both sides of the communication box 1, serving as support and connection components. The support arms 5 act as external supports. A rotating column 6 is fixedly connected to one end of each support arm 5, providing a pivot pin support for subsequent components. Multiple rotating columns 6 are fixedly connected to the same rotating frame 7, which serves as a mechanical frame for antenna attitude adjustment.
[0031] Multiple rotating columns 8 are fixedly connected to the outside of the rotating frame 7. The rotating columns 8 are designed to provide additional rotational support and hinge points for the rotating shaft 4. The external rotating columns 8 are rotatably connected to the inside of the rotating shaft 4. Multiple communication lines 9 are fixedly connected to the top of the rotating shaft 4. The communication lines 9 are designed to serve as signal transceivers for the antenna. The function of the communication lines 9 is to receive external signals. A support plate 10 is fixedly connected to the bottom of the communication box 1. The support plate 10 is designed to distribute the weight of the communication box 1 and avoid local stress concentration. An adhesive plate 11 is fixedly connected to the bottom of the support plate 10. The adhesive plate 11 is designed for quick deployment. The function of the adhesive plate 11 is to allow placement in different external locations. Multiple connection ports 12 are opened inside the communication box 1. The connection ports 12 are designed for multi-channel signal transmission. The function of the multiple connection ports 12 is to connect multiple lines.
[0032] Working Principle: The working principle of this vehicle-mounted stable multi-channel transmission MIMO antenna is as follows: The motor 2 inside the communication box 1 serves as the power source, and its drive end drives the rotating arm 3 to rotate, thereby causing the rotating shaft 4 to move. The rotating shaft 4 and the rotating frame 7 are rotatably connected via rotating column 2 8. The rotating frame 7 is connected to the support arm 5 via rotating column 1 6. When the rotating shaft 4 rotates, it drives the rotating frame 7 to rotate around rotating column 1 6 as the axis, cooperating with rotating column 2 8 to achieve multi-angle and multi-directional adjustment. The communication line 9 at the top of the rotating shaft 4 changes its spatial orientation accordingly. Utilizing the multi-antenna spatial diversity characteristics of MIMO technology, it adapts to different signal sources, expands the coverage area, reduces the impact of obstruction, stably captures and receives external signals, improves the signal strength and quality of multi-channel transmission, and ensures stable transmission of vehicle data. At the same time, the support arm 5 provides external support from both sides to maintain the stability of the device. The support plate 10 and adhesive plate 11 at the bottom of the communication box 1 are used to fix the antenna in the vehicle or other locations. The connection port 12 connects to multiple lines to meet the multi-channel transmission connection requirements, jointly ensuring the stable operation of the antenna.
[0033] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A vehicle-mounted stable multiplex MIMO antenna, comprising a communication box (1), characterized in that: The communication box (1) is internally connected to a motor (2), the drive end of the motor (2) is fixedly connected to a rotating arm (3), one end of the rotating arm (3) is fixedly connected to a rotating shaft (4), both sides of the communication box (1) are fixedly connected to support arms (5), one end of the support arm (5) is fixedly connected to a rotating column (6), the outside of multiple rotating columns (6) is fixedly connected to the same rotating frame (7), the outside of the rotating frame (7) is fixedly connected to multiple rotating columns (8), and the top of the rotating shaft (4) is fixedly connected to multiple communication lines (9).
2. The vehicle-mounted stable multi-channel transmission MIMO antenna according to claim 1, characterized in that: The bottom of the communication box (1) is fixedly connected to a support plate (10), and the bottom of the support plate (10) is fixedly connected to an adhesive plate (11). The communication box (1) has multiple connection ports (12) inside.
3. The vehicle-mounted stable multi-channel transmission MIMO antenna according to claim 1, characterized in that: The external rotatable connection of the plurality of rotating columns (8) is to the interior of the rotating shaft (4).
4. The vehicle-mounted stable multi-channel transmission MIMO antenna according to claim 1, characterized in that: The external rotating arm (3) is rotatably connected to the outside of the communication box (1).
5. The vehicle-mounted stable multi-channel transmission MIMO antenna according to claim 1, characterized in that: The function of the communication line (9) is to receive external signals.
6. The vehicle-mounted stable multi-channel transmission MIMO antenna according to claim 1, characterized in that: The support arm (5) serves as an external support.
7. The vehicle-mounted stable multi-channel transmission MIMO antenna according to claim 2, characterized in that: The purpose of the adhesive board (11) is to be placed in different external locations.
8. The vehicle-mounted stable multi-channel transmission MIMO antenna according to claim 2, characterized in that: The multiple connection ports (12) serve as multi-line connections.