Implementation of slotted-complementary split-ring resonators for Wimax applications in microstrip patch antennas

Reducing mutual coupling between elements of antennas are more attractive in the electromagnetic and antenna community. The complementary split-ringresonators (SRRs) are introduced to reduce the mutual coupling between two microstrip patch antennas that radiate in the same frequency band. The new unit cell consists of two complementary SRR. The adjustment in SRR improves the rejection response in terms of bandwidth and suppression. The filtering characteristics of the band-gap structure are investigated using dispersion analysis. This SRR implementation used for Wimax applications at a resonant frequency of 5.8GHz. The design simulation and optimization is done by ADS(Advanced Design System) software. The simulated return loss of this proposed antenna is 7dB. The proposed resonator structures are broadband and also they can be used to minimize coupling and co-channel interference in antennas.