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Multi-band polarization insensitive metamaterial absorber with dual cross-wires structure

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Abstract

A five-band metamaterial absorber (MMA) based on a simple planar structure is proposed. It utilizes different areas of a single unit cell to match impedance, and produces different absorptive frequencies. Numerical calculation shows that the MMA has five different absorption peaks at 3.78 GHz, 7.66 GHz, 10.9 GHz, 14.5 GHz and 16.7 GHz, and their absorption rates reach 95.5%, 98.6%, 95.7%, 96.6% and 99.8%, respectively. The proposed structure is polarization insensitive for transverse electric (TE) and transverse magnetic (TM) incident waves. Also, the absorptive characteristics over large incident angles are examined. In addition, we analyze the absorption mechanism by the surface current density and power flow density distributions. This simple structure provides a way to design multi-band MMA, and also saves the cost of fabrication.

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DOI:10.1007/s11801-015-5157-0

基金项目:This work has been supported by the National Natural Science Foundation of China (No.61475079), the Ningbo Optoelectronic Materials and Devices Creative Team (No.2009B21007), the Educational Committee of Zhejiang Province (No.Y201430863), the Ningbo Natural Science Foundation (No.2014A610144), the Scientific Research Foundation of Graduate School of Ningbo University (No.G15056), and the K. C. Wong Magna Fund in Ningbo University.

收稿日期:2015-08-14

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作者单位    点击查看

YAO Li-fang:College of Information Science and Engineering, Ningbo University, Ningbo 315211, China
LI Min-hua:College of Information Science and Engineering, Ningbo University, Ningbo 315211, China
ZHAI Xiao-min:College of Information Science and Engineering, Ningbo University, Ningbo 315211, China
WANG Hui-bo:College of Information Science and Engineering, Ningbo University, Ningbo 315211, China
DONG Jian-feng:College of Information Science and Engineering, Ningbo University, Ningbo 315211, China

联系人作者:DONG Jian-feng(dongjianfeng@nbu.edu.cn)

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引用该论文

YAO Li-fang,LI Min-hua,ZHAI Xiao-min,WANG Hui-bo,DONG Jian-feng. Multi-band polarization insensitive metamaterial absorber with dual cross-wires structure[J]. 光电子快报(英文版), 2015, 11(6): 414-417

YAO Li-fang,LI Min-hua,ZHAI Xiao-min,WANG Hui-bo,DONG Jian-feng. Multi-band polarization insensitive metamaterial absorber with dual cross-wires structure[J]. Optoelectronics Letters, 2015, 11(6): 414-417

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