Multi-band metamaterial absorber made of multi-gap SRRs structure
Multi-band metamaterial absorber made of multi-gap SRRs structure
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由多间隙SRR结构制成的多波段超材料吸收体
DOI：
10.1007/s00339-012-6796-7
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发表时间：
2012-04-01
影响因子：
2.7
通讯作者：
Yang, Helin
中科院分区：
文献类型：
--
作者：
Ye, Qiwei;Liu, Ying;Yang, Helin
本文提出了一种多波段超材料吸收体，它由三个不同半径和环宽的多间隙开口环谐振器（SRR）组成，采用组合方法设计。实验结果表明，在7.10 GHz、10.04 GHz和17.44 GHz三个谐振频率处都有吸收峰，吸收率分别为99.90%、99.91%和99.68%。通过数值计算和模拟，解释了超材料吸波体的物理机制，发现三个吸收峰分别是由三个四间隙谐振环引起的。该吸收体对入射角和偏振态不敏感，具有广阔的前景。
This paper presents a multi-band metamaterial absorber comprising three multi-gap split-ring resonators (SRRs) with different radii and ring widths, designed in combinatorial approach. Experiments demonstrate that it can perform absorption peaks at three resonant frequencies 7.10 GHz, 10.04 GHz, and 17.44 GHz with the absorption of 99.90%, 99.91%, and 99.68%, respectively. The physical mechanism of metamaterial absorber was explained through numerical calculation and simulation, which showed that three absorption peaks were caused respectively by the three four-gap SRRs. The absorber is insensitive to incident angles and polarization states, so it has broad prospect of application.