Wideband High-Gain Fabry-Perot Antenna with RCS Reduction Based on Symmetric Polarization Conversion Metasurface

This paper presents a wideband Fabry-Perot (FP) antenna with gain enhancement and Radar Cross Section (RCS) reduction using symmetrical polarization conversion metasurface. Two kinds of symmetrical polarization conversion units are etched on both sides of the dielectric substrate with chessboard arranged to form the Polarization Conversion Metasurface (PCM). The simulation results show that the FP antenna has the 10-dB impedance matching band of 8.65-12.05 GHz (32.9%), the maximum gain of 17.09 dBi, the 3-dB gain bandwidth of 8.68-11.48 GHz (27.8%), and the RCS reduction band is 8-26 GHz with peak RCS reduction of 18.06 dB at 11.5 GHz.