Broadband RCS Reduction by a Quaternionic Metasurface

被引：19
|
作者：
Zhang, Zhao [1 ]
Zhang, Yazhong [2 ]
Wu, Tianlong [2 ]
Chen, Shaowen [2 ]
Li, Wei [2 ]
Guan, Jianguo [2 ]
机构：
[1] First Aircraft Inst AVIC, Xian 710089, Peoples R China
[2] Wuhan Univ Technol, Int Sch Mat Sci & Engn, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China
来源：
MATERIALS | 2021年 / 14卷 / 11期
基金：
中国国家自然科学基金;
关键词：
metasurface; absorbing material; metamaterial; RCS reduction; METAMATERIAL ABSORBERS;
D O I：
10.3390/ma14112787
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A quaternionic metasurface consisting of two pairs of units with destructive phase difference is proposed to extend the bandwidth of radar cross section (RCS) reduction. The two pairs of units are designed to have complementary phase-different bandwidth, which extends the bandwidth of RCS reduction. The overlaps of their bandwidth enhance the RCS reduction, resulting in a metasurface having broadband and strong RCS reduction. This design and the wideband RCS reduction of the quaternionic metasurface were verified by analytical calculation with superposition principle of electric field, numerical simulation with commercial software package CST Microwave Studio and experiment in microwave anechoic chamber. The scattering mechanism and the angular performance of the quaternionic metasurface were also investigated.
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页数：9
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