摘要
为分析具有任意介电常数张量的各向异性波导的导模，本文通过把简化的二维时域有限差分（２－ＤＦＤＴＤ）法扩展至任意各向异性介质，提出了一种以Ｄ、Ｅ和Ｈ场为基础的统一的简化２－ＤＦＤＴＤ模型．利用该模型，研究了简化的复数２－ＤＦＤＴＤ方法与实变数２－ＤＦＤＴＤ方法之间的关系．文中还讨论了复变数方法和实变数方法的激励技术．
For the analysis of guided modes of anisotropic waveguides with arbitrary tensor permittivity,in this paper a unified compact 2 D FDTD model based on the D,E and H fields is developed by extending the compact 2 D FDTD method to an arbitrary anisotropic environment With the help of the proposed model,the relationship between the compact complex and real variable 2 D FDTD methods is investigated On the other hand,excitation techniques for both the complex and real variable methods are also discussed
出处
《光子学报》
EI
CAS
CSCD
1998年第10期880-885,共6页
Acta Photonica Sinica
基金
吉林省教委青年科学基金
关键词
各向异性
波导导模
二维
时域有限差分法
Guided modes of anisotropic waveguide
Two dimensional Finite Difference Time Domain Method(2 D FDTD)
