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Broadband ultrathin wave-absorbing metamaterial for aircraft visual window

A technology of metamaterials and aircraft, applied in the field of materials, can solve the problem that the absorbing material cannot be transparently set

Active Publication Date: 2020-10-23
NO 33 RES INST OF CHINA ELECTRONICS TECHNOOGY GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a broadband ultra-thin wave-absorbing metamaterial for the visible window of an aircraft to solve the problem that the wave-absorbing material in the prior art cannot be transparently set

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  • Broadband ultrathin wave-absorbing metamaterial for aircraft visual window

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Embodiment Construction

[0030] The embodiment of the present invention aims at the problem that the observation windows of the existing armored vehicles, ships, and aircraft cockpits cannot realize light transmission. The present invention uses transparent materials as the medium layer, and sets a single-layer double-sided metamaterial structure on both sides of the medium layer. Use the metamaterial structure to achieve impedance matching, increase the incident wave, and at the same time generate coupling between the upper and lower layers of the metamaterial structure to achieve circuit loss, and finally obtain a broadband ultra-thin wave-absorbing metamaterial with good light transmission, so as to meet the needs of aircraft and other visual applications. In addition, the broadband ultra-thin absorbing metamaterial of the present invention can simultaneously reduce the thickness of the absorbing material and increase the frequency absorption range. The present invention will be described in further...

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Abstract

The invention discloses a broadband ultrathin wave-absorbing metamaterial for an aircraft visual window. A transparent material is used as a dielectric layer, and single-layer double-sided metamaterial structures are arranged on the two sides of the dielectric layer. Impedance matching is realized by utilizing the metamaterial structure, and increasing of incident waves and coupling generated between the upper layer and the lower layer of the metamaterial structure make circuit loss achieved, and the broadband ultrathin wave-absorbing metamaterial with good light transmittance is finally obtained, so the requirements of visible windows such as aircrafts are met; and in addition, the broadband ultrathin wave-absorbing metamaterial can reduce the thickness of the wave-absorbing material at the same time, and the frequency absorption range is widened.

Description

technical field [0001] The invention relates to the field of material technology, in particular to a broadband ultra-thin wave-absorbing metamaterial used for the visible window of an aircraft. Background technique [0002] With the rapid development of ultra-wideband and over-the-horizon radar technology, the survival and penetration capabilities of radar targets have been seriously threatened. In order to quickly improve the low detectability of radar targets, people have conducted in-depth discussions and researches on various target stealth technologies. The key to achieving stealth is minimizing RCS. At present, there are three basic ways to reduce RCS: directly absorbing the incident wave, counteracting the electromagnetic field generated by the target and guiding the incident wave to propagate around the target. Direct absorption of incident electromagnetic waves is the most basic and most widely used method in target stealth. Absorbing materials are a class of fun...

Claims

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Application Information

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IPC IPC(8): H01Q17/00H01Q15/00
CPCH01Q15/0086H01Q17/008
Inventor 赵亚娟张贵恩郑凯钱明灿李鑫
Owner NO 33 RES INST OF CHINA ELECTRONICS TECHNOOGY GRP
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