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Title:
SUB-WAVELENGTH STRUCTURE MATERIAL COMPATIBLE WITH LOW DETECTABILITY OF INFRARED, LASER AND MICROWAVES
Document Type and Number:
WIPO Patent Application WO/2019/114268
Kind Code:
A1
Abstract:
A sub-wavelength structure material that is compatible with the low detectability of infrared, laser and microwaves, from top to bottom sequentially comprising a metallic frequency selective surface layer I (1), a medium layer I (2), a metallic frequency selective surface layer II (3), a medium layer II (4), a resistance film (5), and a medium layer III (6). The metallic frequency selective surface layer I (1) and the metallic frequency selective surface layer II (3) are sub-wavelength patch arrays, and the metal used has the characteristic of low infrared emissivity. A phase difference generated by patches of different sizes on the metallic frequency selective surface layer I (1) is used to regulate a phase and then control the back scattering of incident electromagnetic waves to achieve compatibility with the low detectability of laser and infrared, and the bottom three layers achieve the absorption of microwaves. The limitations of only working in a single waveband of traditional wave-absorbing coating material are overcome, thus achieving compatibility with infrared, laser and microwaves, and the material structure is simple and light.

Inventors:
LUO, Xiangang (P.O.Box 350, Shuangliu Chengdu, Sichuan, Sichuan 9, 610209, CN)
PU, Mingbo (P.O.Box 350, Shuangliu Chengdu, Sichuan, Sichuan 9, 610209, CN)
LI, Xiong (P.O.Box 350, Shuangliu Chengdu, Sichuan, Sichuan 9, 610209, CN)
MA, Xiaoliang (P.O.Box 350, Shuangliu Chengdu, Sichuan, Sichuan 9, 610209, CN)
SHEN, Guoqing (P.O.Box 350, Shuangliu Chengdu, Sichuan, Sichuan 9, 610209, CN)
Application Number:
CN2018/095955
Publication Date:
June 20, 2019
Filing Date:
July 17, 2018
Export Citation:
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Assignee:
THE INSTITUTE OF OPTICS AND ELECTRONICS, THE CHINESE ACADEMY OF SCIENCES (P.O.Box 350, Shuangliu Chengdu, Sichuan, Sichuan 9, 610209, CN)
International Classes:
G02B5/02; H01Q17/00
Foreign References:
CN108061929A2018-05-22
CN103158299A2013-06-19
CN106007799A2016-10-12
CN106767168A2017-05-31
CN106003864A2016-10-12
US9735885B12017-08-15
Other References:
PAN, WENBO ET AL.: "Combining the Absorptive and Radiative Loss in Metasurfaces for Multi- Spectral Shaping of the Electromagnetic Scattering", SCIENTIFIC REPORTS, vol. 6, 19 February 2016 (2016-02-19), pages 21462-1 - 1-21462-8, XP055617560
Attorney, Agent or Firm:
CHINA SCIENCE PATENT & TRADEMARK AGENT LTD. (Suite 4-1105, No.87 West 3rd Ring North Rd., Haidian, Beijing 9, 100089, CN)
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