Abstract We present a metamaterial polarization converter consisting of a spindle-shaped metal top and a gradient grating-like metal bottom. It can realize half reflection and half transmission cross-polarization conversion. The simulation and experimental results show that the metamaterial polarization converter can realize the half reflection and half transmission cross-polarization conversion at 12.51 GHz-13.67 GHz, and realize the transmission cross-polarization conversion at 2.58 GHz-14.85 GHz. Combining the characteristics of general reflection polarization converter, transmission polarization converter, and half mirrors, the design of polarization converter is an enlightening exploration for the multi-functional integration of metamaterials and is conducive to the miniaturization and integration of optical systems. It has potential applications in antennas, imaging systems, remote sensors and radiometers.

中文翻译：

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一种同时具有半反射和半透射的超材料偏振转换器

摘要 我们提出了一种由纺锤形金属顶部和梯度光栅状金属底部组成的超材料偏振转换器。可实现半反射半透射交叉偏振转换。仿真和实验结果表明，超材料偏振转换器可以在12.51 GHz-13.67 GHz实现半反射半透射交叉偏振转换，在2.58 GHz-14.85 GHz实现透射交叉偏振转换。结合一般反射偏振转换器、透射偏振转换器和半反射镜的特点，偏振转换器的设计是对超材料多功能集成的一次具有启发性的探索，有利于光学系统的小型化和集成化。