A planar polarization-insensitive metamaterial absorber

被引：51

作者：

Cheng, Yongzhi ^{[1
]}

Yang, Helin ^{[1
]}

Cheng, Zhengze ^{[2
]}

Xiao, Boxun ^{[3
]}

机构：

[1] Huazhong Normal Univ, Coll Phys Sci & Technol, Wuhan 430079, Hubei, Peoples R China

[2] XianNing Univ, Sch Elect & Informat, Xianning 437100, Peoples R China

[3] Yangtze Univ, Engn Geophys Res Ctr, Jinzhou 434023, Peoples R China

来源：

PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS | 2011年 / 9卷 / 01期

基金：

国家高技术研究发展计划(863计划);

关键词：

Impedance-matched; Metamaterial absorber; Polarization-insensitive; PERMITTIVITY; RESONATORS; FILTERS;

D O I：

10.1016/j.photonics.2010.07.002

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The model of the polarization-insensitive metamaterial (MM) absorber composed of split cross-ring resonator (SCRR), cave-cross resonator (CCR) and dielectric substrate was proposed at microwave frequencies. Based on perfect impedance-matched ((z) over tilde(omega) = 1) to the free space, the single unit cell could achieve near-unity absorbance by properly assembling the sandwich structure. We have simulated and measured the reflectivity and transmission properties of a planar MM absorber with the thickness of 0.6 mm. The absorptivity of a single layer MM absorber achieve greater than 96% around 10.07 GHz in experiments and 98% in simulations for incident electromagnetic (EM) wave with different polarizations. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：8 / 14

页数：7

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