超材料
超材料吸收剂
光学
极化(电化学)
材料科学
可调谐超材料
物理
光电子学
化学
物理化学
作者
Bo Zhu,Zhengbin Wang,Ci Huang,Yijun Feng,Junming Zhao,Tian Jiang
出处
期刊:Electromagnetic waves
日期:2010-01-01
卷期号:101: 231-239
被引量:174
摘要
This paper presents the design, fabrication and measure- ment of a polarization insensitive microwave absorber based on meta- material. The unit cell of the metamaterial consists of four-fold rota- tional symmetric electric resonator and cross structure printed on each side of a print circuit board to realize both electric and magnetic reso- nances to achieve e-cient absorption of the incident microwave energy. Both the full wave electromagnetic simulation and the measurement on the fabricated absorber demonstrate high microwave absorption up to 97% for difierent polarized incident electromagnetic waves. To under- stand the mechanism, analysis is carried out for the electromagnetic fleld distribution at the resonance frequency which reveals the work- ing mode of the metamaterial absorber. Moreover, it is verifled by experiment that the absorption of this kind of metamaterial absorber remains over 90% with wide incident angle ranging from 0 - to 60 - for both transverse electric wave and transverse magnetic wave.
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