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.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
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)
