基于高介电常数基板和金属结构负折射材料的设计,仿真与验证  

Negative refractive index metamaterials based on high-permittivity substrates and metallic structure design,simulation and experiment

作　　者：杨一鸣[1] 王甲富[1] 屈绍波[1,2] 柏鹏[3] 李哲[3] 夏颂[2] 王军[2] 徐卓[2] 

机构地区：[1]空军工程大学理学院数理系,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 [3]空军工程大学综合电子信息系统研究中心,西安710051

出　　处：《物理学报》2011年第5期298-305,共8页Acta Physica Sinica

基　　金：国家自然科学基金(批准号:50632030;10804130;60871027)资助的课题~~

摘　　要：通过将单回路镜像对称开口金属环结构印制在高介电常数基板上,实现了一种金属含量比传统负折射材料更少,"双负"通带比全介质负折射材料更宽的负折射材料.分析了高介电常数基板产生负介电常数以及"双负"通带形成的机理,通过仿真实验分析了影响"双负"通带的因素.通过制作样品验证了这一机理实现"双负"的可行性,理论分析与实验结果都表明这种方法可实现较宽频段内的"双负"通带.By printing single-loop mirror-symmetrical split-ring resonators on high-permittivity substrates,a type of negative index material was realized with less usage of metals and broader negative-index bandwidth than conventional negative index materials.The underlying mechanisms of realizing negative permittivity by means of high-permittivity substrates and of double-negative pass-band were analyzed.The influening factors on the double-negative pass-band were analyzed both numerically and experimentally.By experiments,the proposed method of realizing double-negative property was verified.Both the theoretical and experimental results show that broad double-negative pass-band can be realized using the proposed method.

关 键 词：负折射材料 负介电常数 负磁导率 介质谐振器原理 

分 类 号：O482.4[理学—固体物理]