Abstract
Metasurfaces have opened an effective way to handle the polarization states of electromagnetic waves due to their intrinsic parameters which could be flexibly tailored. In this paper, we present a simple anisotropic metasurface to realize the polarization manipulation of circularly polarized waves with high conversion efficiency in a wide frequency range. The presented simple metasurface can keep the handedness of the reflected waves for circularly polarized incident waves. Both the simulated and experimental results show that the bandwidth of the polarization conversion ratio more than 90% is 7.16 GHz (8.16–15.32 GHz), and the polarization extinction ratio is larger than 15 dB in this frequency range. Because of the simple design and easy fabrication, the designed metasurface can be an excellent candidate for reflection circular polarization conversion.
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