Abstract
In this paper, a reflective linear-to-circular polarization conversion surface is designed by using metasurfaces to control the polarization of electromagnetic waves. The x-polarized electromagnetic wave is vertically incident on the polarization conversion surface, and the incident wave is artificially controlled by the metasurface structure. The x-polarized incident wave can be converted into x-polarized wave and y-polarized wave by the polarization conversion surface. The amplitudes are equal and the phases differ by 90°. Simulation results show that the reflective polarization conversion metasurface can achieve linear-to-circular polarization conversion with an axial ratio of less than 3dB in the frequency range of 9.85-21.0GHz. The linear-to-circular polarization conversion surface has high conversion efficiency, wide operating bandwidth and its relative bandwidth reaches 72.29%, which has important potential application value in satellite communication systems and radar communication systems.
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