基于单面金属结构的二维宽带左手材料  

A two-dimensional broad pass-band left-handed metamaterial based on single-sided metallic structure

作　　者：陈春晖[1] 屈绍波[1,2] 徐卓[2] 王甲富[1] 马华[1] 周航[1] 

机构地区：[1]中国人民解放军空军工程大学理学院,西安710051 [2]西安交通大学电子材料与器件教育部重点实验室,西安710049

出　　处：《物理学报》2011年第2期243-247,共5页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:50632030;60871027);国家重点基础研究发展计划(批准号:2009CB613306);陕西省自然科学基金(批准号:SJ08F01)资助的课题~~

摘　　要：利用将磁谐振器与共面短金属导线相结合的思想,设计了一种基于单面金属结构的二维左手材料.理论分析与仿真结果均表明该结构在某一频段同时具有负等效磁导率和负等效介电常数,并且相对左手带宽达到36%.此外,该结构具有良好的容错能力,短金属导线宽度的变化对整体结构的谐振频率及通带宽度影响很小,这不仅有利于实际加工而且对于设计红外及太赫兹频率范围下的左手材料具有参考价值.Through connecting magnetic resonators and coplanar short metallic wires together,a two dimensional left-handed metamaterial based on single sided metallic structure was proposed. Theoretical analysis and simulated results indicated that this construction exhibited negative effective permittivity and permeability simultaneously in a certain frequency range. Its relative negative refraction pass-band reached 36% . Meanwhile,this construction guaranteed relatively stable tolerance of errors. The resonant frequency and the width of the pass band are insensitive to the change in the width of the short metallic wires,which facilitates its fabrication and is of meaning for designing left-handed metamaterial in infrared or terahertz range.

关 键 词：左手材料 磁谐振器 宽频带 容错性 

分 类 号：O441.6[理学—电磁学]