Dual-band CRLH-TL inspired antenna loaded with metasurface for airborne applications

摘要

This work explains the design of a dual-band composite right/left-handed (CRLH) transmission line (TL) inspired antenna combined with an artificial magnetic conductor (AMC)-based metasurface (MS) reflector with improved bandwidth, gain, and beamwidth applicable for airborne applications. The electrical dimensions of the proposed CRLH-TL inspired radiator antenna is 0.23 lambda(0) x 0.30 lambda(0) x 0.016 lambda(0) at 3.08 GHz. The designed radiator antenna along with the AMC-MS provides excellent unidirectional radiation pattern, extended bandwidths of 12.23% and 21.96%, improved gain values of 6.46 and 7.12 dBi for the two bands at centered at 3.27 and 5.11 GHz. Also, the MS loaded antenna provides positive gain values for theta = +/- 56(0) and +/- 37(0) and for all phi values for the two bands at 3.44 and 5.23 GHz, respectively. Hence, the proposed MS antenna is useful for airborne applications working at 3.44 GHz S-band and 5.23 GHz C-band applications.