Planar Metamaterial Microwave Absorber for all Wave Polarizations

被引：39
|
作者：
Zhu Bo [1 ]
Wang Zheng-Bin [1 ]
Yu Zhen-Zhong [1 ]
Zhang Qi [1 ]
Zhao Jun-Ming [1 ]
Feng Yi-Jun [1 ,2 ]
Jiang Tian [1 ,2 ]
机构：
[1] Nanjing Univ, Dept Elect Sci & Engn, Nanjing 210093, Peoples R China
[2] Southeast Univ, State Key Lab Millimeter Waves, Nanjing 210096, Peoples R China
来源：
CHINESE PHYSICS LETTERS | 2009年 / 26卷 / 11期
基金：
中国国家自然科学基金;
关键词：
NEGATIVE REFRACTION; TERAHERTZ; INDEX;
D O I：
10.1088/0256-307X/26/11/114102
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present a design for a polarization insensitive metamaterial absorber at 9.5 GHz by utilizing properly arranged resonant unit cells with orthogonal polarization sensitivity. Full-wave electromagnetic simulation demonstrates nearly perfect microwave absorption, which has been verified by experimental measurement with a maximum absorption of about 92% for incident wave with different polarizations. Furthermore, we find such a metamaterial thin absorber could work for a wide incident angle ranging from 0 to 50 with absorption no less than 80% for both the transverse electric mode and transverse magnetic mode.
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页数：4
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