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

1
Centre of Advanced Electronic and Communication Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi 43600, Selangor, Malaysia
2
Electrical Engineering Department, Kuwait University, Kuwait City 13060, Kuwait
3
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; https://doi.org/10.3390/s18124209
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)
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Abstract

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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