A theoretical study of the stability criteria for hybridized FDTD algorithms for multiscale analysis

被引:8
作者
Marrone, M [1 ]
Mittra, R [1 ]
机构
[1] Penn State Univ, Electromagnet Commun Lab, University Pk, PA 16802 USA
关键词
cell method (CM); generalized finite-difference time-domain (FDTD) method; hybrid algorithms; stability; subgridding;
D O I
10.1109/TAP.2004.832332
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, we propose two new hybrid, two-dimensional, generalized finite-difference time-domain algorithms-formulated by using the cell method-and designed to analyze objects with fine details, without using very small time steps dictated by the Courant condition. A detailed analysis of the stability of the proposed algorithms is presented, with special attention devoted to the phenomenon of late time instabilities. Finally, some rules are provided that would ensure the stability of the proposed algorithms.
引用
收藏
页码:2158 / 2167
页数:10
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