基于双Σ形金属条的双向左手材料  

Two-dimensional incident left-handed metamaterial composed of double Σ-shaped metal strips

作　　者：田子建[1] 陈文超[1] 樊京[2] 

机构地区：[1]中国矿业大学(北京),机电学院信息工程研究所,北京100083 [2]南阳理工学院电子与电气工程学院,南阳473004

出　　处：《物理学报》2013年第7期207-211,共5页Acta Physica Sinica

基　　金：国家自然科学基金重点项目(批准号:51134024);国家高技术研究发展计划(863计划)(批准号:2012AA062203)资助的课题~~

摘　　要：提出了一种基于双Σ形金属条的双向型左手材料结构.该结构由介质基板和两个反向对称放置在介质基板两侧的Σ形金属条构成,在电磁波平行入射和垂直入射两种情况下,都能够实现双负特性(ε<0,μ<0).通过利用HFSS软件仿真、等效参数提取,分析验证了该结构在X波段具有双向特性和左手特性.该结构的双向特性拓宽了电磁波的入射角度,对左手材料的多维化和多向化发展提供了参考价值.A structure of two-dimensional incident left-handed metamaterial composed of double Σ-shaped metal strips is proposed. The structure consists of a dielectric substrate and two anti-symmetrical Σ-shaped metal strips on each side of it, and the structure presents double negative properties （ε〈0, μ〈0）, with electromagnetic waves being incident parallel or perpendicular to the substrate. With HFSS software, the two-dimensional incident left-handed properties of the structure are analyzed and verified in X waveband by means of spectrum analysis and effective parameters extracted from S parameters. The two-dimensional incident properties of the structure widen electromagnetic wave angle and are also of reference value for developing multi-dimensional incidence of the metamaterial.

关 键 词：左手材料 双Σ形金属条 双向 

分 类 号：O441.6[理学—电磁学]