Simple Intuitive Relations Concerning the Effect of Boundaries on the Stability of the FDTD Method

被引：8

作者：

Hosseini, Keyhan ^{[1
]}

Atlasbaf, Zahra ^{[1
]}

机构：

[1] Tarbiat Modares Univ, Dept Elect & Comp Engn, Tehran 14115111, Iran

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2018年 / 66卷 / 12期

关键词：

Boundary; Courant-Friedrich-Levy number (CFLN); dielectric; interface; perfect conductor; TIME-DOMAIN METHOD; ALGORITHM; INTERFACES; ACCURATE;

D O I：

10.1109/TAP.2018.2866990

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：

Simple intuitive relations are derived to study the effect of some boundaries on the Courant-Friedrich-Levy number (CFLN) in the finite-difference time-domain method. A novel von-Neumann stability analysis is proposed to study the effect of perfect electric conductor, perfect magnetic conductor, and perfect electromagnetic conductor boundaries on the CFLN. Also, Gershgorin's theorem is applied to determine the CFLN at the interface between two dielectrics. Studies show that the aforesaid boundaries do not restrict the CFLN of the computational space.

引用

页码：7483 / 7487

页数：5

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