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A Dual Band Circularly Polarized Slotted Square Patch Antenna

Shweta Parihar, Chetan Pathak

In this paper, a probe feed low profile circularly polarized patch antenna has been proposed for microwave communication in S-band and C-band. For dual band operation, four slots are etched near edges of the patch and a cross slot has been etched in the center for generating circular polarization. The proposed antenna offers - 10.53dB and -20.37 dB reflection co-coefficient at 2.27GHz and 5.42 GHz respectively which are in good agreement. It also offers 24% and 9.35% antenna efficiency at 2.27 GHz and 5.42 GHz respectively.