CPW fed elliptical patch antenna with Polarization Reconfigurability

Abstract

A CPW fed elliptical patch antenna with reconfigurable polarization states among elliptical polarization (EP) and circular polarization (CP) is proposed. The proposed antenna has an elliptical patch on which cuts have been made symmetrical to minor axis of ellipse to obtain elliptical polarization. Circular polarization (CP) and Elliptical polarization are generated due to the discontinuity introduced by the cuts. In the proposed antenna, CPW feeding is used to increase the percentage bandwidth.