An Explicit and Unconditionally Stable FDTD Method for Electromagnetic Analysis

被引：64
|
作者：
Gaffar, Md. [1 ]
Jiao, Dan [1 ]
机构：
[1] Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2014年 / 62卷 / 11期
基金：
美国国家科学基金会;
关键词：
Explicit methods; finite-difference time-domain (FDTD) method; unconditionally stable methods; DIFFERENCE TIME-DOMAIN; FINITE-ELEMENT-METHOD; ALGORITHM;
D O I：
10.1109/TMTT.2014.2358557
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：
In this paper, an explicit and unconditionally stable finite-difference time-domain (FDTD) method is developed for electromagnetic analysis. Its time step is not restricted by the space step, and its accuracy is ensured for the time step chosen based on accuracy. The strength of the conventional explicit FDTD is thus preserved in avoiding a system matrix solution, while the shortcoming of the conventional FDTD is eliminated in the time step's dependence on space step. Numerical experiments in both 2-D and 3-D simulations have demonstrated the performance of the proposed method in stability and efficiency without sacrificing accuracy.
引用
收藏
页码：2538 / 2550
页数：13
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