Low RCS Reflective Polarization Conversion Metasurface

This letter proposes a low RCS reflective polarization conversion metasurface. The metasurface is composed of an upper metal patch, an intermediate dielectric layer and a metal bottom plate. The simulation results show that the metasurface can convert the linear polarized incident wave into the reflected wave cross-polarized in the frequency range of 10.63~21.05GHz. It has a significant RCS reduction effect in the frequency range of 8~23GHz, and the maximum reduction is 16.5dB.