Pre-iterative ADI-FDTD method for conductive medium

被引：23
|
作者：
Wang, SM [1 ]
Chen, J
机构：
[1] Kelly Sci Inc, Bethesda, MD 20892 USA
[2] Univ Houston, Dept Elect & Comp Engn, Houston, TX 77204 USA
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2005年 / 53卷 / 06期
基金：
美国国家科学基金会;
关键词：
alternating-direction implicit finite-difference; time-domain (ADI-FDTD) method; conductive medium; iterative method; splitting error;
D O I：
10.1109/TMTT.2005.848086
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：
An efficient accuracy-improvement scheme is proposed to analyze electromagnetic problems with conductive medium. This scheme is based on interpreting the alternating-direction implicit finite-difference time-domain (ADI-FDTD) method as a special iterative solver for the Crank-Nicholson scheme. By applying an additional number of iterations to locations with relatively large field variation, the overall accuracy can be improved with little computational overhead. Special treatment of lossy medium in the ADI-FDTD method is also addressed. Finally, numerical examples demonstrate the effectiveness of the proposed method.
引用
收藏
页码：1913 / 1918
页数：6
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