含有异向介质H形波导的特性研究  

Characteristics of H-guides With Bianisotropic Split Ring Resonator Metamaterials

作　　者：杨锐[1] 谢拥军[1] 蒋俊[1] 冯鹤[1] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室,西安710071

出　　处：《光子学报》2009年第5期1062-1068,共7页Acta Photonica Sinica

基　　金：国家自然科学基金(60771040);教育部新世纪优秀人才(NCET-04-0950)资助

摘　　要：将开口谐振环作为加载单元,分析了含有异向介质H形波导的新型传输特性.由于异向介质的双各向异性效应,纵剖面磁波型和纵剖面电波型在此新型导波结构中的相速度能够减慢,并且会引起功率流动的增强.在一些情况下,纵剖面磁波型和纵剖面电波型将出现传播常量随频率增高而减小的异常高次模式.而在其它情况下,利用双各向异性效应可以有效减少纵剖面磁和纵剖面电波型的高次模漏波现象.尤其当异向介质取得单负参量时,此新型导波结构将能够完全抑制高次模漏波的出现.Different dispersion properties were imparted to H-guides by split ring resonator metamaterials. Both longitudinal section magnetic （LSM） and longitudinal-section electric （LSE） modes are capable of processing very slow phase velocity due to metamaterial bianisotropic effects. Enhanced energy flow in the proposed waveguiding structure was also demonstrated. And, some abnormal higher-order I.SM and LSE modes,eventually leading to the leakage,may come into existence when metamaterials are double negative. For other LSM/LSE modes, leakage can be reduced due to the magnetoelectric coupling. When the metamaterials are of single negative parameters,leakage elimination can be achieved.YANG Rui received the B. S. degree in electronic engineering from Xidian University, in 2004. Since 2005, he has been a Ph. D. degree candidate at Xidian University. His present research interests focus on metamaterials and computational electromagnetics.

关 键 词：H形波导 异向介质 相速度 漏波 

分 类 号：TN011[电子电信—物理电子学]