开口金属环的磁谐振理论修正模型  

Corrected Pendry Model of Metal Split-Ring Resonators

作　　者：董焱章[1] 刘书田[2] 

机构地区：[1]湖北汽车工业学院汽车工程系,汽车动力传动与电子控制湖北省重点实验室,十堰442002 [2]大连理工大学工程力学系,工业装备结构分析国家重点实验室,大连116024

出　　处：《微波学报》2016年第4期10-14,共5页Journal of Microwaves

基　　金：国家自然科学基金(11502075;11504102);湖北省自然科学基金(2014CFB629;2015CFC789);湖北汽车工业学院博士科研启动基金(BK201501)

摘　　要：研究了开口金属环周期性阵列的磁谐振特性,推导了开口谐振环周期性阵列电磁特性分析的理论模型,提出了一个金属内外环的有效间对面积因子,并基于该因子修正了Pendry模型中磁谐振频率的表达式;数值算例表明改良的理论模型具有更高的预测准确度。本文提出的有效间对面积因子X=3,对于开口谐振环阵列这一典型的电磁结构的性能分析来说,其修正模型的指导性是可靠的。Corrected theoretical models are presented for structural electromagnetic performance analysis of metamate- rials with metal split-ring resonators. The prediction models about the metal split-ring resonators are theoretically derived. The magnetic resonance frequency expression of Pendry model is corrected by means of an effective surface-to-surface area factor. The numerical examples show that these modified theoretical prediction models have higher accuracy. The effective surface-to-surface area factor X equals to three in this paper; and its guidance of these modified theoretical is reliable for structural electromagnetic performance analysis of classic metamaterials with metal split-ring resonators.

关 键 词：磁谐振频率 有效间对面积因子 负磁导率 开口谐振环 超材料 

分 类 号：TG111[金属学及工艺—物理冶金] O441[金属学及工艺—金属学]