Broadband Radar Cross Section Reduction Using Dual-Circular Polarization Diffusion Metasurface

摘要: In this letter, a novel dual-circular polarization diffusion metasurface is proposed for the radar cross section reduction. Considering polarization, designed based on two circular polarizations, and it has different phase distributions polarizations separately. Through increasing degree of freedom, more uniform scattering pattern can be obtained linear-polarized incidence. Following idea, four types unit cells are designed, which independently control phases left-hand right-hand in broadband. To achieve broadband low-scattering performance, these arranged configuration optimized by genetic algorithm. Simulated measured results prove that our method offers an effective strategy to design metasurfaces low scattering.