In this paper, leveraging the resonant phase and the geometry phase simultaneously, we demonstrated a low scattering lens antenna, which can work at both transmission and reflection mode. Different from the traditional microwave lens which only realizes wavefront shaping in half-space, the proposed metasurface lens not only squeezes the transmitted divergent beam to improve the gain of the conventional circular-polarized antenna, but also scatters the electromagnetic wave to maintain a low reflection property in broadband. The proposed lens antenna working in full space may provide a new approach for an integrated communication system.

中文翻译：

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用于天线增益增强和雷达截面减小的基于超表面的透镜

在本文中，同时利用谐振相位和几何相位，我们展示了一种低散射透镜天线，它可以在传输和反射模式下工作。与传统微波透镜仅在半空间实现波前整形不同，所提出的超表面透镜不仅挤压发射发散光束以提高常规圆极化天线的增益，而且散射电磁波以保持低反射宽带属性。所提出的全空间工作的透镜天线可能为集成通信系统提供一种新方法。