Novel Frequency Reconfigurable Slotted Patch Antenna: Design and Analysis

A novel frequency reconfigurable slotted patch antenna structure is presented here. The slots made on the aperture of the antenna are made to orient by making their axis as reference either in clockwise or anti-clockwise direction. This orientation distributes the surface currents in different ways resulting in change of its resonance frequency. This antenna is designed to operate in L-band microwave frequency region. The proposed structure is designed and simulated in HFSS software and detailed analysis is done. Obtained results indicate that there is a change in operating frequency as a function of angle of orientation of the slotted section, without affecting the radiation pattern. Various other parameters of the antenna are also simulated as a function of slotted section orientation and these results are tabulated and presented.