CONFORMAL HYBRID FINITE-DIFFERENCE TIME-DOMAIN AND FINITE-VOLUME TIME-DOMAIN

被引:29
作者
YEE, KS
CHEN, JS
机构
[1] Lockheed Palo Alto Research Laboratory, Palo Alto
关键词
D O I
10.1109/8.320754
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
A hybrid method that combines the finite difference time domain (FDTD) and the finite volume time domain (FVTD) methods is presented. The FVTD, based on a conformal and unstructured grid is used in the near vicinity of the surface of a scatterer, and the FDTD is used to model the fields in the surrounding area. The two are coupled together through interpolation. The vertex-based FVTD allows for more convenient and accurate interpolations than a conformal FDTD method. The hybrid method is validated through two examples-the scattering by a PEC cube and sphere-by comparison with the direct FDTD solution, and with an exact Mei series solution for the spherical case.
引用
收藏
页码:1450 / 1454
页数:5
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