Open AccessAchieving flexible low-scattering metasurface based on randomly distribution of meta-elements
Author(s) -
Junming Zhao,
Boyu Sima,
Nan Jia,
Cheng Wang,
Bo Zhu,
Tian Jiang,
Yijun Feng
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.027849
Subject(s) - optics , scattering , materials science , radar cross section , broadband , coating , microwave , reflection (computer programming) , wavelength , reflection coefficient , substrate (aquarium) , optoelectronics , physics , computer science , telecommunications , composite material , oceanography , programming language , geology
In the paper, a flexible low-scattering metasurface is proposed and realized. The layout is composed of similar "#" shaped elements with variable sizes which are randomly distributed along the surface. The various dimensions of the meta-elements lead to different reflection phases for the meta-elements with respect to the incident plane wave, resulting a diffuse reflection surface and exhibiting a broadband backward low-scattering property. In consideration of the flexibility, metasurfaces composed of printed metallic element films attaching with flexible substrate are designed, fabricated and measured in microwave domain. The measurement results show that 10dB radar cross section (RCS) reduction is obtained across the X-band by coating them to either metallic plates or metallic cylinders with only 1/8 working wavelength thickness. We think that the proposed flexible metasurface is applicable to other frequency bands and can be applied in EM stealth technology.