Journal
JOURNAL OF APPLIED PHYSICS
Volume 115, Issue 6, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4865273
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Funding
- DRDO, India [DECS/15/15124/D(RD)/CARS-1]
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In this paper, a triple band polarization-independent metamaterial absorber using electric field-driven LC resonators is proposed over wide angle of incidence. The unit cell is designed by parametric optimization in such a way that triple band absorption occurs in C-band. The proposed structure exhibits triple band absorption property for any angle of polarization under normal incidence. It also shows high absorption for wide angle of incidence upto 60 degrees for both TE and TM polarizations. The proposed structure is also fabricated and experimental results provide good agreement with the simulated responses. The constitutive electromagnetic parameters viz. effective permittivity and effective permeability are extracted from the simulated response, which support the absorption phenomena at all these three frequencies. The reflection from the structure is numerically computed and verified with simulated response, and it shows good agreement between them. (C) 2014 AIP Publishing LLC.
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