基于矩形谐振环的新型复合周期结构左手材料研究

通过实验及仿真研究了基于矩形谐振环的新型三角形和三矩形开口谐振环金属线复合周期结构左手材料.仿真研究了以金属铜三角谐振环和三矩形谐振环（SRRs）为基本单元的周期结构负磁导率材料，结果显示两种谐振环均能产生很好的谐振效果，即能产生负磁导率；设计、制作并实验和仿真研究了三角谐振环和三矩形谐振环金属线复合周期结构左手材料，实验结果分别在9.5—13.3GHz和9.8—12.5GHz出现良好的负折射效应，与仿真结果具有较好的一致性.该研究对新型周期结构左手材料的研究、设计和研制具有重要的科学意义和应用前景. 关键词： 左手材料 负折射 三角形谐振环 三矩形谐振环

Study on new period structures of left-handed material based on rectangular resonators and metal wires

We studied the new left-handed material cousisting of triangular and three rectangular split resonant rings （SRRs） based on rectangular resonators and metal wires through simulation and experiment. Simulated negative permeability material based on periodic structures of triangular and three rectangular SRRs, we found that two kinds of SRRs can generate negative permeability. We designed new kinds of left-handed materials consisting of two kinds of resonators based on rectangular resonators and copper wires, simulation shows the structures have good left-handed property in some frequency bands. We also fabricated experimental samples in which waves under go negative refraction when the frequency bands are 9.5—13.3GHz and 9.8—12.5GHz respectively. This has important significance on design and study of new periodic structures of left-handed materials.