Rectangular Strip Loaded Circular Patch Antenna for Simultaneous Improvement of Co polar Gain and Co Polarization to Cross Polarization radiation Separation

Abstract

A circular patch antenna is one of the popular candidates in the planer antenna family. Circular patch antennas are used in many modern applications. A circular patch antenna with a strip loaded at the top is proposed and investigated for enhancement of co-polarization gain as well as the separation between co-polarized to cross-polarized radiation. The rectangular strip is placed in such a way that the overall patch dimension is not increasing. The length of the strip is same as the diameter of the circular patch. A copolarization gain of 7.5 dBi with co-polarization to crosspolarization separation of 23 dB is attains through the investigated structure.