As an initial step in developing steerable mirrors for terahertz (THz) wireless communication systems, this paper describes the development of a passive planar terahertz retroreflectors based on the Van Atta array. The retroreflector is optimized and simulated using finite-element modeling (FEM) software, fabricated via a low-cost additive manufacturing method, and characterized using THz time-domain spectroscopy. Comparison to a flat metal plate shows a significant increase in retroreflectivity for off-normal angles of incidence.

中文翻译：

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太赫兹Van Atta逆反射阵列

作为开发太赫兹（THz）无线通信系统的转向镜的第一步，本文介绍了基于Van Atta阵列的无源平面太赫兹后向反射镜的开发。使用有限元建模（FEM）软件对后向反射器进行优化和仿真，通过低成本的增材制造方法制造后向反射器，并使用THz时域光谱进行表征。与平板金属板的比较表明，对于非垂直入射角，回射率显着增加。