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Open AccessArticle

A Polarization Independent Quasi-TEM Metamaterial Absorber for X and Ku Band Sensing Applications

Centre of Advanced Electronic and Communication Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
Electrical Engineering Department, Kuwait University, Kuwait City 13060, Kuwait
Institute of Sustainable Energy (ISE), Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang 43000, Selangor, Malaysia
Authors to whom correspondence should be addressed.
Sensors 2018, 18(12), 4209;
Received: 10 August 2018 / Revised: 4 October 2018 / Accepted: 8 October 2018 / Published: 30 November 2018
(This article belongs to the Special Issue Antenna Technologies for Microwave Sensors)
In this paper, a dual-band metamaterial absorber (MMA) ring with a mirror reflexed C-shape is introduced for X and Ku band sensing applications. The proposed metamaterial consists of two square ring resonators and a mirror reflexed C-shape, which reveals two distinctive absorption bands in the electromagnetic wave spectrum. The mechanism of the two-band absorber particularly demonstrates two resonance frequencies and absorption was analyzed using a quasi-TEM field distribution. The absorption can be tunable by changing the size of the metallic ring in the frequency spectrum. Design and analysis of the proposed meta-absorber was performed using the finite-integration technique (FIT)-based CST microwave studio simulation software. Two specific absorption peaks value of 99.6% and 99.14% are achieved at 13.78 GHz and 15.3 GHz, respectively. The absorption results have been measured and compared with computational results. The proposed dual-band absorber has potential applications in sensing techniques for satellite communication and radar systems. View Full-Text
Keywords: absorber; dual-band; metamaterial; quasi-TEM; sensing; X band absorber; dual-band; metamaterial; quasi-TEM; sensing; X band
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Hoque, A.; Tariqul Islam, M.; Almutairi, A.F.; Alam, T.; Jit Singh, M.; Amin, N. A Polarization Independent Quasi-TEM Metamaterial Absorber for X and Ku Band Sensing Applications. Sensors 2018, 18, 4209.

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