雷达学报2021，Vol.10Issue(3)：382-390,9.DOI:10.12000/JR21061
四叶草形超宽带漫散射编码超表面
A Four-leaf Clover-shaped Coding Metasurface For Ultra-wideband Diffusion-like Scattering
摘要
Abstract
In this paper, a novel four-leaf clover-shaped coding metasurface is proposed and applied to achieve an ultra-wideband diffusion-like scattering. The proposed metasurface element has rotational symmetry; hence, it produces similar reflection characteristics for both x- and y-polarized waves. To realize a 1-bit coding metasurface, two elements are chosen that have a phase difference of 180°±37° from 15.5 to 40.5 GHz. An optimization algorithm is applied to get the best arrangement of unit cells in the array to attain the wideband RCS reduction. The four-leaf clover-shaped metasurface can attain more than 10 dB RCS reduction from 15.5 to 26.5 GHz and 30.5 to 40.5 GHz. A prototype of the proposed design is fabricated, and an experiment is carried out to validate the performance of the metasurface. The proposed concept of four-leaf clover-shaped coding metasurface is an effective solution for wideband RCS reduction applications.关键词
编码超表面/水循环算法/雷达散射截面/漫散射/四叶草形Key words
Coding metasurface/Water cycle algorithm/Radar Cross-Section (RCS)/Diffusion-like scattering/Four-leaf clover分类
信息技术与安全科学引用本文复制引用
YASIR Saifullah,杨国敏,徐丰..四叶草形超宽带漫散射编码超表面[J].雷达学报,2021,10(3):382-390,9.基金项目
The National Key Research and Development Program of China(2017YFA0100203) （2017YFA0100203）
