7-Polarization Insensitive and Wide Operating Angle Metamaterial Absorber at X-band

Osman Ayop, Mohamad Kamal A Rahim and Noor Asniza Murad, 'Polarization Insensitive and wide operating angle metamaterial absorber at X-band', 2014 IEEE Asia-Pacific Conference on Applied Electromagnetic (APACE 2014), Johor Bahru Johor, pp. 245-249, 8-9 Dec 2014 (Index Scopus).

Abstract:

This paper presents the design, simulation, and experimental result of single band circular ring metamaterial absorber at 10 GHz. The metamaterial absorber is polarization insensitive and work at wide operating angle of incident electromagnetic waves. The unit cell of the metamaterial consists of a circular ring copper structure printed on 0.8 mm thick FR4 substrate. The simulated result shows that the metamaterial absorber achieves high absorbance up to 700 of incident electromagnetic waves, which is more than 85%. The full width half maximum (FWHM) for normal incident waves is 4.9% and 6.13% for simulation and measurement respectively. The operating angles which the metamaterial structure can maintain 50% of the absorbance is 820 and 830 for TE mode and TM mode respectively.

Results: