Enhancing The Performance of A Circularly Polarized Fabry-Perot Resonator Antenna with The Phase Compensation Technique

Abstract

A low-profile high-gain circularly-polarized Fabry-Perot resonator antenna (FPRA) is presented. The FPRA consists of a linearly polarized (LP) microstrip patch antenna, a PEC ground, and a partially-reflective surface (PRS) with linear-to-circular polarization conversion. Simulated results show that the FPRA achieve a peak gain of 17.67dBic at 12.1GHz and a 3-dB axial ratio from 11.90GHz to 12.42GHz. The PRS is further designed to provide the leaky waves with compensation phases. A higher gain and better CP performance are obtained.