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Carbon fiber parabolic antenna and its focusing assembly method

A parabolic antenna and assembly method technology, which is applied to antenna supports/installation devices, antennas, electrical components, etc., can solve the problem of carbon fiber reflective surfaces without a reference, and achieve the goal of shortening focusing time, reducing processing costs, and improving production efficiency. Effect

Active Publication Date: 2021-02-19
SHANGHAI COMPOSITES SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the carbon fiber reflector itself has no reference, and the focusing assembly of the main-sub reflector antenna has always been a research hotspot and also a difficult point

Method used

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  • Carbon fiber parabolic antenna and its focusing assembly method
  • Carbon fiber parabolic antenna and its focusing assembly method

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Embodiment approach

[0046] The carbon fiber parabolic antenna focusing assembly method includes the following steps:

[0047] Step 1: Design the centering pin, and combine the threaded hole on the embedded central carbon ring on the main reflector 1 as the initial reference of the main reflector 1;

[0048] Step 2: The bottom of the outer ring of the sub-reflector 2 is thickened with a carbon layout, and machined to ensure the roundness of the outer ring and the relationship with the axis of the sub-reflector 2 as an initial reference;

[0049] Step 3: Glue the bottom plate 5 designed by the assembly tool to level the main reflective surface 1 at an angle of 1.95°, and reserve 3 reference blocks and 3 reference holes on the designed auxiliary reverse positioning plate 6 as the reference for subsequent focusing assembly;

[0050]Step 4: Use glued assembly tooling to initially adjust the main-sub-reflector 2; initially adjust the focus to a deviation of 0.5 mm in the X direction and a deviation of ...

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Abstract

The present invention provides a carbon fiber parabolic antenna focusing and assembling method, which includes the following steps: a coarse focusing step: performing preliminary adjustment on the main reflector, the secondary reflector, the feed source bracket and the support rod using the focus assembling tool Focus assembly; precise focusing steps: use laser tracker to measure the main reflective surface and secondary reflective surface, and fine-tune the main reflective surface and secondary reflective surface according to the actual measurement results of laser tracker; fastening assembly steps: the fasteners are The fastening assembly of the parts: between the main reflector and the support rod; between the sub-reflector and the support rod; between the feed source bracket and the main reflector. Correspondingly, the present invention also provides a carbon fiber parabolic antenna. The coarse focusing of the focusing assembly tool designed in the present invention can greatly shorten the focusing time and improve the production efficiency, and the laser tracker is used to assist measurement for precise focusing, which greatly reduces the processing accuracy of the assembly tool and reduces the processing cost of the tool.

Description

technical field [0001] The invention relates to antenna assembly, in particular to a carbon fiber parabolic antenna and a focusing assembly method thereof, in particular to a high-precision carbon fiber parabolic antenna and a focusing assembly method thereof. Background technique [0002] Compared with metal materials, carbon fiber composites (CFC) have the characteristics of low density, extremely small linear expansion coefficient, high specific strength and specific modulus, and good designability of physical and mechanical properties. It has been proved to be an ideal antenna structure in the aerospace field. Material. [0003] The double-reflector curved surface antenna is a common antenna structure in the spaceborne antenna, which is typically composed of a main reflector, a secondary reflector, a pole and a feed array. When the focus of the main and secondary reflectors coincides, the structure can greatly enhance the electromagnetic wave signal and achieve an ideal...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q15/16H01Q19/12H01Q1/12
CPCH01Q1/12H01Q15/16H01Q19/12
Inventor 张娟娟魏海旭李宗周沈辉刘图远吴文平
Owner SHANGHAI COMPOSITES SCI & TECH CO LTD