@Article{cmc.2014.039.217, AUTHOR = {Shiv Narayan, Latha S. and R M Jha}, TITLE = {Polarization Independent Dual-band Metamaterial Based Radar Absorbing Structure (RAS) for MillimeterWave Applications}, JOURNAL = {Computers, Materials \& Continua}, VOLUME = {39}, YEAR = {2014}, NUMBER = {3}, PAGES = {217--230}, URL = {http://www.techscience.com/cmc/v39n3/22725}, ISSN = {1546-2226}, ABSTRACT = {The EM analysis of multi-layered metamaterial based radar absorbing structure (RAS) with dual-band characteristics in millimeter wave frequency regime has been carried out in this paper using transmission line transfer matrix (TLTM) method for TE and TM polarizations. The proposed metamaterial-based RAS exhibits dual-band characteristics at centre frequencies 120 GHz and 175 GHz with very low power reflection. It absorbs more than 90% power of incidence wave over the frequency range from 111-131 GHz at first resonance and from 164.5-185 GHz at second resonance without metal backing plate, which is desirable for stealth applications. It also showed very low (< 1.6%) transmission over the frequency of interest for both TE and TM polarizations. The proposed metamaterial-RAS has potential applications in the design of multi-band sensor systems and RCS reduction in millimeter wave frequency regime.}, DOI = {10.3970/cmc.2014.039.217} }