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Dual resonant polarization-independent and wide angle metamaterial absorber in x-band frequency

Ayop, Osman and Abdul Rahim, Mohamad Kamal and Murad, Noor Asniza and Samsuri, Noor Asmawati (2015) Dual resonant polarization-independent and wide angle metamaterial absorber in x-band frequency. In: 6th International Conference on Metamaterials, Photonic Crystals and Plasmonics (META15), 4-7 August, 2015, USA.

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Official URL: http://metaconferences.org/ocs/index.php/META15/ME...

Abstract

This paper presents the analysis of dual-resonant polarization-independent metamaterial absorber with wide operating angle in X-band frequency. Two circular rings with different radius are used as resonating elements. The resonating elements which are made by copper are printed on two surfaces (top and bottom) of dual-layer FR4 substrate. At the middle layer, a full copper layer is placed. The performance of dual-resonant circular ring metamaterial absorber is observed using CST software. From simulated result, the proposed structure achieves high absorbance, which is 96.41 and 93.61 % at 9 and 11 GHz, respectively, for normal incident wave. For measurement, the resonant frequencies are found at 9.39 and 11.63 GHz with absorbance of 99.07 and 83.70 %, respectively. Then, the structure is also simulated for oblique incident angles. It is observed that the operating angle of the proposed metamaterial absorber is 70° for TE modes and 67° for TM modes. Measurement for oblique incident angle is done to validate the simulated result. Mutual agreement is achieved between simulated and measured result with slight frequency shift and ripples.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:x-band frequency, imulated for oblique incident angles
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:62231
Deposited By: Fazli Masari
Deposited On:30 May 2017 02:02
Last Modified:03 Aug 2017 01:53

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