超材料的发展为太赫兹技术提供了良好的载体, 使太赫兹器件得到飞速发展。滤波器作为其中重要的功能器件, 实现了太赫兹波段的单频和多频滤波。文章提出了一种新型超材料太赫兹滤波器结构, 该结构可同时应用于LC谐振和偶极谐振, 实现了太赫兹滤波。重点对几何参数对器件滤波性能的影响规律进行了研究, 通过优化滤波器关键结构参数, 实现了良好的双频带和三频带太赫兹滤波。

The development of metamaterials provides a favorable carrier for terahertz technology, which makes terahertz devices develop rapidly. As an important functional device, terahertz filters achieve both singleband and multiband filtering. In this paper, a new metamaterial structure is proposed, in which LC resonance and dipole resonance are used simultaneously for multiband terahertz filtering. The influence laws of the geometric parameters on the filter performance were studied, and by optimizing key structural parameters, good dualband and tripleband filtering was obtained.