基于蘑菇型磁谐振环结构的左手材料设计与分析  

Design and analysis of a left-handed metamaterial based on mushroom magnetic resonance structure

作　　者：张洪欣[1] 吕英华[1] 王海侠[1] 

机构地区：[1]北京邮电大学电子工程学院,北京100876

出　　处：《电波科学学报》2011年第6期1113-1117,共5页Chinese Journal of Radio Science

基　　金：国家自然科学基金项目(No.60871081);北京市自然科学基金项目<基于电磁超介质材料的小型化智能天线设计与制作>(No.4112039)

摘　　要：提出了一种蘑菇型磁谐振环结构,并结合金属丝电谐振结构设计了左手材料单元。利用CST电磁仿真软件,通过平面波入射实验、等效电磁参数提取及波导仿真实验等方法验证了左手通带的存在。这种磁谐振环结构由单匝开口环路串连而成,相比于传统的多环路开口谐振环有着更为简单的结构形式,便于材料的加工和制备。同时,这种前后相邻的磁谐振环固有的金属条结构,也为左手材料的电磁谐振提供了一种电容耦合单元。A new mushroom magnetic resonance structure is presented,while and the left-handed metamaterial is designed based on this structure and the metal strip structure.With the help of electromagnetic simulation software CST,the left-handed pass band is verified by the simulation of electromagnetic wave transmission,extraction of equivalent electromagnetic parameters and experiment of wave-guide simulation method etc.This magnetic resonance structure is composed of a series of simplex split loops,which has a simple structure compared with the traditional multi-loop split resonance structure,and it is convenient to be used for fabricating left-handed metamaterials.Meanwhile,the neighbor metal strips of every two magnetic structures arranged front and rear also provide a coupling capacitance to the electromagnetic resonance of left-handed metamaterials.

关 键 词：电磁谐振 左手材料 左手通带 

分 类 号：TN821.8[电子电信—信息与通信工程]