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Gradient film

A thin-film and gradient technology, applied in the field of radio communication, can solve the problems of low surface accuracy and limited application range of inflatable and expandable film antennas, and achieve the effect of improving the shape and surface accuracy.

Active Publication Date: 2020-05-19
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inflatable deployable antenna made of ordinary film has the disadvantage of low shape accuracy, and its shape error increases linearly with the increase of the antenna aperture. This fatal shortcoming restricts the application range of the inflatable deployable film antenna. extremely restrictive

Method used

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  • Gradient film
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Embodiment Construction

[0021] The application describes a number of embodiments, but the description is illustrative rather than restrictive, and it will be obvious to those of ordinary skill in the art that within the scope of the embodiments described in the application, There are many more embodiments and implementations. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Except where expressly limited, any feature or element of any embodiment may be used in combination with, or substituted for, any other feature or element of any other embodiment.

[0022] This application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The disclosed embodiments, features and elements of this application can also be combined with any conventional features or elements to form unique inventive solutions as defined by the clai...

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Abstract

The invention discloses a gradient film. The radial elastic constant and the circumferential elastic constant of the gradient film are orthotropic; and a preset proportional relation exists between the radial elastic constant and the circumferential elastic constant, wherein the radial elastic constant can comprise a radial elastic modulus Er and a radial poisson ratio mu r; and the circumferential elastic constant may include a circumferential elastic modulus E theta and a circumferential poisson ratio [mu] theta. Through the scheme of the embodiment, the profile precision of the inflatable deployable film antenna can be improved.

Description

technical field [0001] The embodiment of the present application relates to the technical field of radio communication, especially to a gradient film. Background technique [0002] With the development of radio communication technology, especially the increasing demand for space communication, remote sensing and observation. Inflatable film deployable antenna / radar has the advantages of large aperture, light weight, high folding efficiency, quick deployment, and low cost, which has become a research hotspot in the field of antenna design. The inflatable deployable antenna made of ordinary film has the disadvantage of low shape accuracy, and its shape error increases linearly with the increase of the antenna aperture. This fatal shortcoming restricts the application range of the inflatable deployable film antenna. Extremely restrictive. [0003] Therefore, how to formulate a new film inflatable structure scheme or develop a new type of film to improve the shape and surface ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/08
CPCH01Q1/081
Inventor 刘涛邱信明张兴华
Owner TSINGHUA UNIV