TY - EJOU AU - Narayan, Shiv AU - S., Latha AU - Jha, R M TI - EM Analysis of Metamaterial Based Radar Absorbing Structure (RAS) for MillimeterWave Applications T2 - Computers, Materials \& Continua PY - 2013 VL - 34 IS - 2 SN - 1546-2226 AB - The EM performance analysis of a multilayered metamaterial based radar absorbing structure (RAS) has been presented in this paper based on transmission line transfer matrix (TLTM) method for millimeter wave applications. The proposed metamaterial-RAS consists of cascaded DPS and MNG layers of identical configurations. It exhibits extremely low reflection (< 42 dB) at 95 GHz and absorbs more than 95% power of incident wave over the frequency range of 90.4- 100 GHz without metal backing for both TE and TM polarizations. In view of aerospace applications, the reflection, transmission, and absorption characteristics of the proposed metamaterial-RAS are also studied at different incident angles (0°, 30°, and 45°) for both polarizations. KW - Metamaterial KW - Radar absorbing structure KW - Metamaterial-RAS KW - Transmission line transfer matrix method KW - Millimeter wave DO - 10.3970/cmc.2013.034.131