Polarization-independent wide-angle triple-band metamaterial absorber

被引：662
作者：
Shen, Xiaopeng [1 ,2 ]
Cui, Tie Jun [1 ]
Zhao, Junming [3 ]
Ma, Hui Feng [1 ]
Jiang, Wei Xiang [1 ]
Li, Hui [1 ]
机构：
[1] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 210096, Peoples R China
[2] China Univ Min & Technol, Dept Phys, Xuzhou 221116, Peoples R China
[3] Nanjing Univ, Dept Elect Engn, Nanjing 210093, Peoples R China
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 10期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1364/OE.19.009401
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We report the design, fabrication, and measurement of a microwave triple-band absorber. The compact single unit cell consists of three nested electric closed-ring resonators and a metallic ground plane separated by a dielectric layer. Simulation and experimental results show that the absorber has three distinctive absorption peaks at frequencies 4.06GHz, 6.73GHz, and 9.22GHz with the absorption rates of 0.99, 0.93, and 0.95, respectively. The absorber is valid to a wide range of incident angles for both transverse electric (TE) and transverse magnetic (TM) polarizations. The triple-band absorber is a promising candidate as absorbing elements in scientific and technical applications because of its multiband absorption, polarization insensitivity, and wide-angle response. (C) 2011 Optical Society of America
引用
收藏
页码：9401 / 9407
页数：7
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