基于超表面的太赫兹滤波器研究

李 亚尊, 栗 自强
华北水利水电大学

摘要


本文提出了一种基于双开口金属圆环结构的超表面太赫兹滤波器，本结构在6.8THz频率时产生一个阻带，
形成带阻滤波器。文章使用有限元法对器件的传输特性进行了数值研究，计算了不同超表面结构的传输特性，开口
金属环受到入射光的激励在金属表明发生电磁场的增强，产生偶极子共振，这种共振会导致在相对应的频率处与透
射光相互增强，在透射谱内呈现出带阻滤波器的特性。本文章所研究的结构为超表面太赫兹滤波器的设计提供了一
种思路，对滤波技术和电磁波控制方面做出了实验数据。

关键词


超表面；FSS；偶极子共振；滤波器

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参考


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DOI: http://dx.doi.org/10.12361/2661-3506-06-09-137864

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