Design and analysis of perfect metamaterial absorber in GHz and THz frequencies

Furkan Dincer, Muharrem Karaaslan and Cumali Sabah

Journal of Electromagnetic Waves and Applications, 2015, vol. 29, issue 18, 2492-2500

Abstract: The new perfect metamaterial absorber (MA) based on square resonator with gap configuration is numerically (for GHz and THz frequency regime) and experimentally (for GHz frequency regime) presented and investigated. The proposed MA has a simple configuration which introduces flexibility to adjust its metamaterial properties and easily rescale the structure for other frequency regimes. In addition, polarization and incident angle independencies of the proposed model are analyzed for the THz frequency regime. The suggested structure could achieve very high absorption at wide angles of polarization and incident angles for both transverse electric and transverse magnetic waves. At resonance frequencies, absorption results are realized around 99.99% at 5.48 GHz and 99.92% at 0.865 THz for their respective frequency regimes. Besides numerical results in GHz and THz frequencies, experimental results are also obtained for GHz frequency regime. The proposed MA and its variations enable myriad potential applications in areas such as defense systems, communication, stealth technologies, and so on.

Date: 2015
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DOI: 10.1080/09205071.2015.1043030

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