红外与毫米波学报2019，Vol.38Issue(6)：722-727,6.DOI:10.11972/j.issn.1001-9014.2019.06.007
基于金属-介质-金属结构的太赫兹超材料宽阻带滤波器
Terahertz wide stop-band metamaterials filter based on metal-dielectric-metal structure
摘要
Abstract
In order to realize terahertz(THz)metamaterials(MMs)filters with multi-band or wide-band charac-teristics,the same or different resonance structures are usually combined in the same plane or stacked in multiple layers. THz wide stop-band MMs filter based on Metal-Dielectric-Metal(MDM)structure is presented by placing C-shaped resonance elements of the same size at both ends of the middle dielectric layer,which has the broader stop-band and the better frequency selection. Based on the analysis of the electric field and surface current distri-butions on the C-shaped resonance elements of the wide stop-band MMs filter,the transmission mechanism of THz wave is discussed in depth,and the filtering mechanism of the filter is revealed. The filtering characteristics of the MMs filter based on MDM structure and Metal-Dielectric(MD)structure are simulated respectively,and the formation mechanism of wide stop-band is revealed. Finally,the MMs filter samples are prepared based on PDMS thin films preparation process and magnetron sputtering,and their filtering characteristics are tested by transmission-type Terahertz Time Domain Spectroscopy(THz-TDS)TDS 1008. The correctness of design,simu-lation and preparation of wide stop-band MMs filter is verified,which provides reference for the design,fabrica-tion and characteristic research of wide band filters in the future.关键词
超材料/太赫兹/滤波器/谐振/传输Key words
metamaterials/terahertz/filters/resonance/transmission分类
通用工业技术引用本文复制引用
王俊林,王鑫,韩丁..基于金属-介质-金属结构的太赫兹超材料宽阻带滤波器[J].红外与毫米波学报,2019,38(6):722-727,6.基金项目
Supported by National Natural Science Foundation of China (51965047,31660678),Natural Science Foundation of Inner Mongolia (2018MS06007),Higher Education Scientific Research Project of Inner Mongolia(NJZY18252),Research Startup Fund of High-level Talents Introduction in 2018(21700-5185131),and Research Startup Fund of High-level Talents Introduction in 2018(21700-5185128) （51965047,31660678）
