The generalized TLM-based FDTD modeling of frequency-dependent and anisotropic media

被引：5

作者：

Chen, ZZ ^{[1
]}

Xu, JA

机构：

[1] Dalhousie Univ, Dept Elect & Comp Engn, Halifax, NS B3J 2X4, Canada

[2] Phase Atlantic Ltd, Moncton, NB E1C 9N1, Canada

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1998年 / 46卷 / 05期

基金：

加拿大自然科学与工程研究理事会;

关键词：

anisotropic; FDTD; frequency dependent; TLM;

D O I：

10.1109/22.668660

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A generalization of the previously proposed transmission-line matrix (TLM)-based finite-difference time-domain (FDTD) method is presented for modeling frequency-dependent and anisotropic media. The generalized scheme incorporates electric-and magnetic-flux densities in addition to variable mesh sizes. Since it is in an FD form, modeling techniques developed for the conventional FDTD can be easily adapted into the proposed TLM-based technique. In this paper, a modified z-transform technique for frequency-dependent media is implemented, and a two-dimensional (2-D) full-wave technique for guided-wave structures is developed. in all the FDTD computations, no conversions between the field quantities and TLM circuit parameters such as open-and short-circuited stubs are required.

引用

页码：561 / 565

页数：5

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