A three-dimensional angle-optimized finite-difference time-domain algorithm

被引：32
|
作者：
Wang, SM [1 ]
Teixeira, FL
机构：
[1] Ohio State Univ, Electrosci Lab, Columbus, OH 43212 USA
[2] Ohio State Univ, Dept Elect Engn, Columbus, OH 43212 USA
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2003年 / 51卷 / 03期
关键词：
finite-difference time-domain (FDTD) method; numerical dispersion; optimization;
D O I：
10.1109/TMTT.2003.808615
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：
We present a three-dimensional finite-difference time-domain (FDTD) algorithm to minimize the numerical dispersion error at preassigned angles. Filtering schemes are used to further optimize its frequency response for broad-band simulations. A stability analysis of the resulting FDTD algorithm is also provided. Numerical results show that the dispersion error around any preassigned angle can be reduced significantly in a broad range of frequencies with small computational overhead.
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页码：811 / 817
页数：7
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