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Design method of parabolic-cylindrical-surface mesh deployable antenna based on modular splicing thought

A parabolic cylinder and design method technology, applied in computer-aided design, design optimization/simulation, calculation, etc., can solve the problem of late start of research on spaceborne parabolic cylinder antenna technology, and achieve the goal of reducing surface density and deployment height. Effect

Active Publication Date: 2017-12-05
XIDIAN UNIV
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Problems solved by technology

However, compared with foreign developed countries, my country's research on spaceborne parabolic cylindrical antenna technology started relatively late. Although some progress has been made in this technical field, there is still a big gap compared with some developed countries in the world.

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  • Design method of parabolic-cylindrical-surface mesh deployable antenna based on modular splicing thought
  • Design method of parabolic-cylindrical-surface mesh deployable antenna based on modular splicing thought
  • Design method of parabolic-cylindrical-surface mesh deployable antenna based on modular splicing thought

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Embodiment Construction

[0068] Such as figure 1 As shown, the present invention provides a design method of a parabolic cylindrical mesh deployable antenna based on the idea of ​​modular splicing, including the following steps:

[0069] Step 101: The unfolded state of the parabolic antenna back frame is as follows figure 2 As shown, given the structural parameters of the parabolic cylindrical antenna back frame, the overall structural parameters include the expansion aperture C in the parabolic direction of the antenna, the expansion length L in the baseline direction, and the back frame height H. Expand basic units such as image 3 As shown, the unit structure parameters include the length of the bar (the length of the bar in the parabolic direction l p , the length of the bar in the baseline direction l b ), three-way joint length h 1 , five-way joint length h 2 And the splicing length T of the upper joint of the parabolic direction module up T up , figure 2 The types of splicing modules...

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Abstract

The invention provides a design method of a parabolic-cylindrical-surface mesh deployable antenna based on a modular splicing thought. The design method comprises the main steps that 1, structural parameters of a parabolic-cylindrical-surface antenna back frame are given; 2, the total module number in the parabola direction of the antenna back frame is calculated; 3, the total module number in the base line direction of the antenna back frame is calculated; 4, the rib numbers in the parabola direction and base line direction of the antenna back frame are given, and a final back frame configuration is determined; 5, according to principle errors of an antenna reflection surface, the section number in the parabola direction of a network cable is calculated, and thus an ideal geometrical configuration of the network cable is generated; 6, shape design of the network cable is achieved; 7, a finite element model of a network cable-back frame structure is established, combined shape finding is conducted on the model, so that the shape and surface precision of the antenna meet the design requirement. The design method is based on the modular splicing thought, the deployable back frame of the parabolic-cylindrical-surface antenna is spliced by adopting a few varieties of modules, shape design of the network cable structure of the antenna is achieved, and the design scheme of a whole antenna structure is obtained.

Description

technical field [0001] The invention belongs to the technical field of parabolic cylinder deployable antenna design, and in particular relates to a design method of a parabolic cylindrical mesh deployable antenna based on the idea of ​​modular splicing. Background technique [0002] Large spaceborne antennas are widely used in electronic reconnaissance, space communication, weather monitoring, navigation and other fields, and are developing in the direction of large aperture, high precision and light weight. The spaceborne parabolic antenna is one of various types of spaceborne antennas. Because of its strong directivity, high gain, and easy automatic beam scanning, it has become one of the new development directions of spaceborne antennas. In view of the limitation of rocket carrying space and capability, deployability has become one of the typical features of modern large-aperture parabolic antennas. The advantage of the parabolic antenna is that it can achieve a large re...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/18G06F30/23G06F2119/06
Inventor 张逸群李娜朱日升
Owner XIDIAN UNIV
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