Design of circular polarisation microstrip patch antennas with complementary split ring resonator

Abstract

A novel design of circular polarisation microstrip patch antennas based on the complementary split ring resonator is numerically evaluated and experimentally verified. The non-resonant property of complementary split ring resonator is used as an asymmetric perturbation to excite the square microstrip patch antenna for circular polarisation radiation. The detailed parameters of the complementary split ring resonator on the circular polarisation radiation are studied.