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A flexible high-precision parabolic antenna and its preparation method

A parabolic antenna, high-precision technology, applied in the direction of antenna, radiation element structure, electrical components, etc., can solve the problems of repeated use, poor reliability, poor mobility, etc., to provide portability, improve surface accuracy, The effect of good conformity

Active Publication Date: 2021-02-09
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In satellite communication, the parabolic antenna is a common antenna form. It has the advantages of simple structure and high antenna efficiency. Most of the traditional parabolic antennas are rigid structures, generally made of aluminum alloy and other metal materials. It is convenient to fold and carry, and has the disadvantages of poor mobility, complicated and time-consuming operation, and the accuracy is greatly affected by the assembly effect.
There are also some parabolic antennas that adopt a flexible and foldable structure, but the accuracy of the parabolic surface is poor. This is reflected in the fact that the forming process is to split the paraboloid through commercial software such as Catia, and then use lap joints or butt joints to form it. The bonding is easily damaged, that is, the reliability is poor, and it cannot meet the requirements of repeated use

Method used

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  • A flexible high-precision parabolic antenna and its preparation method
  • A flexible high-precision parabolic antenna and its preparation method
  • A flexible high-precision parabolic antenna and its preparation method

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preparation example Construction

[0037] A method for preparing a flexible high-precision parabolic antenna, comprising the steps of:

[0038] Step (1): Processing and making Invar molds, and cleaning the surface of the molds with acetone;

[0039] Step (2): respectively select flexible sealing film material, flexible hot melt adhesive film and flexible parabolic antenna material for use;

[0040] Step (3): Put the mold into the oven to preheat;

[0041] Step (4): Brush release agent on the preheated mold surface, and follow the order of flexible sealing film layer, flexible hot melt adhesive film layer, flexible parabolic antenna layer, flexible hot melt adhesive film layer, and flexible sealing film layer Make layers.

[0042] Step (5): Vacuumize after laying, and enter the oven at the same time, and keep warm for 30 minutes after the mold is heated to 140°C;

[0043] Step (6): continue to evacuate and cool to room temperature, then demould, and finally trim the edges to prepare a high-precision parabolic...

Embodiment

[0046] The material of the flexible sealing film layer 4 is a thermoplastic polyurethane film with a melting point of 150° C. and a thickness of 0.1 mm. The material of the flexible hot-melt adhesive film layer 5 is a thermoplastic polyurethane film with a melting point of 110° C. and a thickness of 0.15 mm. The material of the flexible parabolic antenna layer 6 is a four-way elastic cloth woven with silver-plated nylon fibers, with a thickness of 0.1 mm.

[0047] The preparation method of the flexible high-precision parabolic antenna in this embodiment is as follows:

[0048] Step (1): Processing and making Invar molds, and cleaning the surface of the molds with acetone;

[0049]Step (2): respectively select flexible sealing film layer material, flexible hot melt adhesive film layer and flexible parabolic antenna layer material for use;

[0050] Step (3): Put the Invar mold into the oven and preheat it to 70°C;

[0051] Step (4): Brush the release agent on the surface of t...

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Abstract

A flexible high-precision parabolic antenna comprises a flexible sealing film layer, a flexible hot-melt adhesive film layer, a flexible parabolic antenna layer, a flexible hot-melt adhesive film layer, and a flexible sealing film layer from bottom to top. The present invention further provides the preparation method of flexible high-precision parabolic antenna, 1) process and manufacture Invar mold; 2) select flexible sealing film layer, flexible hot-melt adhesive film layer and flexible parabolic antenna layer materials for use; 3) mold Put it into the oven to preheat; 4) Lay layers on the preheated mold surface; 5) Vacuumize after the layering is completed, and enter the oven at the same time, and keep warm for 30 minutes after the mold is heated to 140°C; 6) Continue to vacuumize and cool After reaching room temperature, the mold was removed, and the edges were finally trimmed to prepare a high-precision parabolic antenna. The invention solves the problem of poor precision and difficult control of the reflective surface after the traditional flexible parabolic antenna passes through the plane fitting curved surface. It is integrally formed, cured at one time, low in cost, and can be formed into large-size flexible reflective surface products.

Description

technical field [0001] The invention relates to a flexible high-precision parabolic antenna and a preparation method thereof, which belong to the technical field of functional composite materials and technology, and are applied in the technical field of radar antennas. Background technique [0002] In satellite communication, the parabolic antenna is a common antenna form. It has the advantages of simple structure and high antenna efficiency. Most of the traditional parabolic antennas are rigid structures, generally made of aluminum alloy and other metal materials. It is convenient to fold and carry, and has the disadvantages of poor mobility, complicated and time-consuming operation, and the accuracy is greatly affected by the assembly effect. There are also some parabolic antennas that adopt a flexible and foldable structure, but the accuracy of the parabolic surface is poor. This is reflected in the fact that the forming process is to split the paraboloid through commerci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36H01Q1/38H01Q15/16
CPCH01Q1/36H01Q1/38H01Q15/16
Inventor 孙荣庆张扬伟谢晶王建昌雷琴易凯颜鸿斌
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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