Method for electrode of satellite-borne electrostatic forming membrane reflector unfolding antenna

A technology of electrostatic forming and reflective surface, which is applied in the direction of antennas, electrical components, etc.

Active Publication Date: 2014-11-12
XIDIAN UNIV
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the manufacturing and installation accuracy of the high-voltage electrodes of the electrostatically formed film reflective surface deployable antenna restricts the forming precision of the film reflective surface, and propose a space-borne electrostatically formed film reflective surface that can control the electrode production and improve the installation accuracy. Antenna Electrode Method

Method used

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  • Method for electrode of satellite-borne electrostatic forming membrane reflector unfolding antenna
  • Method for electrode of satellite-borne electrostatic forming membrane reflector unfolding antenna
  • Method for electrode of satellite-borne electrostatic forming membrane reflector unfolding antenna

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Embodiment Construction

[0063] like figure 1 As shown, a method for deployable antenna electrodes on a space-borne electrostatic forming film reflector, at least includes the following steps:

[0064] Step 101: The high-voltage electrode is made of a flexible film material and laid on the front cable net of the astromesh structure. The cable net structure supporting the electrode and the flexible electrode are called an electrode system. The electrode system is a typical tensioned cable-membrane flexible structure, which relies on the pre-stress of the film and the pre-tension of the cable net to provide the stiffness required to maintain the shape of the structure. Therefore, the overall shape design of the cable-membrane composite structure should be carried out first according to the shape and stiffness requirements of the electrodes.

[0065] Step 102: According to the structural design results of the cable-membrane composite structure, the cable-net and the film are separated and staked out;

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Abstract

The invention belongs to the technical field of radar antennas, and particularly discloses a method for an electrode of a satellite-borne electrostatic forming membrane reflector unfolding antenna. According to the method, the characteristics of systematic manufacturing and installing of the electrode are sufficiently considered, and clipping and lofting are carried out on a flexible cable and the membrane electrode in a separated mode. Due to the fact that tension of the flexible cable is easily measured, it is emphasized that flexible cable clipping is carried out in the tensioning state, and the flexible cable clipping accuracy is controlled. The hook face unfolding and stress releasing principle can not be easily used when tension of a membrane is measured, the membrane is clipped in the plane stress-free state, and the manufacturing clipping accuracy of the membrane can be effectively controlled. Then the flexible cable is connected with the membrane electrode through a positioning template in the tensioning state, and the installation accuracy of the electrode can be effectively controlled. The method is reliable in principle and easy and convenient to operate, and the method for effectively controlling manufacturing and installing of the high-voltage electrode of the electrostatic forming membrane reflector unfolding antenna is provided.

Description

technical field [0001] The invention belongs to the technical field of radar antennas, in particular to a method for deployable antenna electrodes on a space-borne electrostatically formed film reflective surface, which is used to control the electrode manufacturing and installation accuracy of the spaceborne electrostatically formed film reflective surface antenna. Background technique [0002] With the rapid development of aerospace science and technology activities, higher and higher requirements are put forward for spaceborne deployable antennas, which are manifested in two aspects of large aperture and high precision. For example, NASA's next-generation spaceborne weather radar requires a caliber of 35m and a frequency of up to 35GHz (the antenna's on-orbit surface accuracy is required to reach 0.17mm). In the future, communication, ground remote sensing and other fields also have potential demands for large-aperture, high-precision spaceborne antennas. However, the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/14
Inventor 刘超段宝岩张逸群杜敬利杨东武杨癸庚谷永振姜文明
Owner XIDIAN UNIV
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