A Wideband and Ultra-Thin Metamaterial Absorber Based on Resistive FSS

被引:9
作者
Lv, Zhongliang [1 ]
Li, Zelun [1 ]
Han, Yu [1 ]
Cao, Yujiang [1 ]
Yang, Lin [1 ]
机构
[1] Chongqing Univ Sci & Technol, Coll Mech & Power Engn, Chongqing 401331, Peoples R China
来源
SYMMETRY-BASEL | 2022年 / 14卷 / 06期
基金
中国国家自然科学基金;
关键词
metamaterial absorber; wideband absorption; resistance film;
D O I
10.3390/sym14061148
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
A wideband, ultra-thin, wide-angle and polarization-insensitive metamaterial absorber with a single-layer resistive frequency selective surface (FSS) is proposed. The simulated results show that the absorption rate of the absorber is greater than 90% in a frequency range of 24.1-42.6 GHz, and the relative absorption bandwidth is up to 55.47%. The thickness of the structure is 1.2 mm, which is 0.088 lambda and 0.156 lambda for the lowest and highest frequencies, respectively. The power loss density is analyzed to explore the mechanism of the absorption and the resistive film layer is important for the wideband absorption. Meanwhile, a strong absorption for oblique incidence with wide angle and the characteristics of polarization insensitivity are achieved for the proposed design.
引用
收藏
页数:9
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