A Planar Dynamic Pattern-Reconfigurable Antenna

A circular patch antenna with the ability to reconfigure the pattern between broadside and monopole-like patterns is proposed. The proximity fed circular patch is loaded with four rectangular slots and an outer ring. These two patterns are achieved by reconfiguring the mode of the antenna between TM 02 and perturbed TM 02 . The switching between these two modes is produced by placing four strips in the middle of rectangular slots and activating and deactivating the slots. The proposed antenna has the potential of being conformal by using polymer-conductive fabric composite-based fabrication technique.