异向介质填充非辐射介质波导和H波导中的高次模及漏波抑制  

Higher-order modes and leakage suppression in NRD-waveguide and H-waveguide with bianisotropic split ring resonator metamaterials

作　　者：杨锐[1] 谢拥军[1] 杨晓东[1] 陈博韬[1] 王瑞[1] 刘志刚[2] 

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 [2]四川九洲电器集团有限责任公司,四川绵阳621000

出　　处：《强激光与粒子束》2009年第10期1534-1538,共5页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(60771040);天线与微波技术国家重点实验室基金资助课题(9140C0704060804)

摘　　要：通过对加载异向非辐射介质波导(NRD)和H波导的全波分析,研究了此新型导波结构的传输特性。由于开口谐振环所引起的双各向异性效应,在双负参数条件下,纵剖面磁(LSM)波型和纵剖面电(LSE)波型将可能出现传播常数随频率增高而减小的异常高次模式,从而引起漏波。而在其它情况下,利用双各向异性效应却可以有效减少LSM和LSE波型的高次模漏波现象。尤其当异向介质取得单负参数时,此新型导波结构将能够完全抑制高次模漏波的出现。A rigorous full wave analysis of nonradiative dielectric waveguide and H-waveguide with split ring resonator metamaterials is presented to investigate the different dispersion properties. Due to the bianisotropic effects of metamaterials, some abnormal higher-order longitudinal-section magnetic （LSM） and longitudinal-section electric （LSE） modes may come into existence when metamaterials have double negative parameters. However, for other LSM/LSE modes, leakage can be reduced by utilizing the bianisotropic effects. In addition, when the metamaterials have negative permittivity, leakage elimination can be achieved.

关 键 词：异向介质 非辐射介质波导 H波导 漏波 

分 类 号：TN011[电子电信—物理电子学]