Triple-band polarization-insensitive wide-angle ultra-thin planar spiral metamaterial absorber
- 7 June 2013
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 113 (21), 213516
- https://doi.org/10.1063/1.4809655
Abstract
The design, fabrication, and measurement of a triple-band metamaterial absorber are presented. The proposed absorber consists of a metallic planar spiral layer and a metallic ground plane separated by a dielectric layer. Experimental results show that the proposed absorber can perform absorption peaks at three resonant frequencies 9.86 GHz, 12.24 GHz, and 15.34 GHz with the absorption of 99.4%, 96.7%, and 99.1%, respectively. In addition, the absorber with the thickness of at the lowest fundamental resonant frequency can operate at a wide range of incident angles under both transverse electric and transverse magnetic polarizations.
Keywords
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