Polarization Reconfigurable Patch Antenna through Modification of Feeding Network

This paper proposes an antenna with ability to reconfigure the polarization between linear polarization, righth- and circular polarization and left-hand circular polarization through the modification of the feeding network. The antenna consists of circular patch on the upper side of the substrate, and the coplanar waveguide transmission line is placed on the ground plane at the underside of the substrate. For reconfigurability purpose, eight switches are applied and positioned at the feeding network. The performance of the proposed antenna is presented and discussed. The proposed antenna is operated within WLAN frequency band (2.4-2.48 GHz).