volume | PIER Journals

Abstract

We present the design, characterization, and experimental verification of a dual-band metamaterial absorber (MA) in the microwave frequencies. The proposed MA consists of a metallic gammadion-shaped structure and a complete metal layer, separated by a dielectric spacer. The results show that the proposed MA has two absorption peaks at nearly 5.6 GHz and 6 GHz with absorption rates of 97% and 99%, respectively. The interference theory is used to investigate the physical mechanism of the proposed MA. The experimental results are in good agreement with the theoretical predictions.Furthermore, it is verified by simulations that the absorption of the proposed MAis almost insensitive to the incident wave polarization and oblique incident angle for the both TM and TEmodes. This MA has broad prospect of potential applications.

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Mr. Saeid Jamilan

Dr. Mohammad Naghi Azarmanesh

Dr. Davoud Zarifi