Polarization automatic switching mechanism
The automatic polarization switching mechanism driven by a servo electric actuator solves the problems of low polarization switching efficiency and poor environmental adaptability in satellite communication, and achieves high-precision, fast-response, and strong anti-interference polarization switching effect for portable stations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-24
AI Technical Summary
Existing satellite communication polarization switching schemes rely on manual operation, resulting in low efficiency, and their mechanical structures are easily affected by the environment and are bulky, making it difficult to meet the requirements of lightweight and rapid response for portable stations.
The polarization automatic switching mechanism, driven by a servo electric push rod, achieves high-precision movement of the antenna RF components through the cooperation of linear guide rails and sliders. Combined with mounting clips and fasteners, it forms a compact polarization automatic switching system.
It achieves lightweight, high-precision, and fast-response polarization switching for portable stations, improving the system's anti-interference capability and signal polarization purity.
Smart Images
Figure CN224037365U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to satellite communication terminal antenna technical field, especially a polarization automatic switching mechanism. BACKGROUND
[0002] In satellite communication, polarization matching is the key to guarantee signal transmission quality. The traditional polarization switching scheme has the following problems:
[0003] 1. Manual switching: relying on manual operation, low efficiency and easy to make mistakes, difficult to meet the rapid response demand of emergency communication scene;
[0004] 2. Lack of automation: the existing electric switching mechanism adopts complex gear set or servo system, which is large in size, high in weight, and conflicts with the lightweight design of portable station;
[0005] 3. Poor environmental adaptability: mechanical structure is easily affected by vibration, temperature and humidity, resulting in polarization angle deviation, affecting the polarization purity of high frequency signal.
[0006] Therefore, an automatic polarization switching scheme with compact structure, rapid response and strong anti-interference ability is needed. SUMMARY
[0007] To solve the problems in the prior art, the utility model aims at providing a polarization automatic switching mechanism, which overcomes the defects of large size, slow switching and poor anti-interference of the existing mechanism.
[0008] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a polarization automatic switching mechanism, which comprises an antenna radio frequency assembly, a switching adapter connected with the antenna radio frequency assembly, and a driving device connected with the switching adapter, the driving device is used for driving the switching adapter to move, so as to drive the antenna radio frequency assembly to move and realize polarization switching.
[0009] As a further improvement of the utility model, the driving device comprises a mounting bottom plate, a linear guide rail and a servo electric push rod acting on the switching adapter are arranged on the mounting bottom plate, and a sliding block matched with the linear guide rail is arranged on the switching adapter.
[0010] As a further improvement of the utility model, the servo electric push rod is fixed on the mounting bottom plate through a mounting buckle.
[0011] The utility model has the advantages of:
[0012] The utility model overcomes the defects of large size, slow switching and poor anti-interference of the existing mechanism, and meets the lightweight, high precision and reliability requirements of portable station for polarization switching. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 The structure diagram of the embodiment of the present application.
[0014] Reference signs:
[0015] 1, mounting buckle, 2, switching adapter, 3, slider, 4, linear guide rail, 5, antenna radio frequency assembly, 6, servo electric push rod, 7, mounting bottom plate. DETAILED DESCRIPTION
[0016] The embodiment of the present application will be described in detail below with reference to the drawings.
[0017] Embodiment
[0018] As Figure 1 shown, a polarization automatic switching mechanism, comprising an antenna radio frequency assembly 5, further comprising a switching adapter 2 connected with the antenna radio frequency assembly 5, and a driving device connected with the switching adapter 2, the driving device is used to drive the switching adapter 2 movement, thereby driving the antenna radio frequency assembly 5 movement to realize polarization switching.
[0019] Specifically, the driving device includes a mounting bottom plate 7, the mounting bottom plate 7 is provided with a linear guide rail 4 and a servo electric push rod 6 acting on the switching adapter 2, the switching adapter 2 is provided with a slider 3 matched with the linear guide rail 4.
[0020] In this embodiment, the linear guide rail 4 and the mounting bottom plate 7 are fixed by fasteners, the servo electric push rod 6 is fixed by the mounting buckle 1, the mounting buckle 1 and the mounting bottom plate 7 are fixed by fasteners, the switching adapter 2 and the linear guide rail 4 are fixed by fasteners, and the antenna radio frequency assembly 5 and the switching adapter 2 are fixed by fasteners.
[0021] The working principle of the embodiment is as follows:
[0022] The servo electric push rod 6 receives the polarization switching instruction, and the push rod is used on the switching adapter 2 to drive the switching adapter 2 to move, thereby driving the antenna radio frequency assembly 5 to move and realizing polarization switching. The servo electric push rod 6 is a switching power element, which ensures high precision, strong adaptability, stability, fast response and repeat positioning accuracy; the linear guide rail 4 and the slider 3 provide high precision motion trajectory, high reliability and low friction for the switching adapter.
[0023] The above-described embodiments only express the specific implementation of the present application, which is described in detail and specifically, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application.
Claims
1. A polar automatic switching mechanism comprising an antenna radio frequency assembly, characterized by, The application also comprises a switching adapter connected with the antenna radio frequency component, and a driving device connected with the switching adapter, wherein the driving device is used to drive the switching adapter to move, so as to drive the antenna radio frequency component to move and realize polarization switching.
2. The polar automatic changeover mechanism of claim 1, wherein, The driving device comprises a mounting bottom plate, a linear guide rail and a servo electric push rod acting on the switching adapter are arranged on the mounting bottom plate, and a sliding block matched with the linear guide rail is arranged on the switching adapter.
3. The polar auto-switch mechanism of claim 2, wherein, The servo electric push rod is fixed on the mounting bottom plate through a mounting buckle.