Ultralow Scattering and Broadband Metasurface Using Phase Adjustable FSS Elements Embedded With Lumped Resistors

被引：29
作者：
Li, Chengli [1 ,2 ]
Xu, Zhuang [1 ,2 ]
Lin, Li [1 ,2 ]
Guo, Sai [1 ,2 ]
He, Yun [1 ,2 ]
Miao, Ling [1 ,2 ]
Jiang, Jianjun [1 ,2 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
[2] Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan 430074, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2021年 / 20卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Frequency selective surfaces; Metasurfaces; Resistors; Reflection; Scattering; Absorption; Finite element analysis; Frequency selective surface (FSS); lumped resistors; metasurface; radar cross section (RCS) reduction; ultralow backscattering; ABSORBER; POLARIZATION; COMBINATION; ABSORPTION;
D O I：
10.1109/LAWP.2021.3063534
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This letter presents a novel phase-cancellation and absorptive metasurface (PCAM) with ultralow scattering and broadband features. The PCAM is formed by two circular frequency selective surface elements with lumped resistors, which can not only reduce reflection amplitudes by transforming the incident waves into heat but also adjust reflection phase responses simultaneously. The two electromagnetic scattering mechanisms, phase cancellation and absorption, cooperate in the same band and single layer. This is the first proposed ultralow backscattering performance where the monostatic radar cross section (RCS) is reduced by more than 20 dB in 5.0-10.9 GHz. Simultaneously, an RCS reduction over 10 dB is achieved at a broad frequency band of 4.1-12.0 GHz under normal incidence. Both the analysis and measurements are demonstrated in detail. The good agreement between simulated and measured results validates the proposed PCAM.
引用
收藏
页码：793 / 797
页数：5
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