Numerical Dispersion Analysis for the 3-D High-Order WLP-FDTD Method

被引：0
|
作者：
Chen, Wei-Jun [1 ]
Quan, Jun [2 ]
Long, Shi-Yu [1 ]
机构：
[1] Lingnan Normal Univ, Sch Informat Sci & Technol, Zhanjiang 524048, Peoples R China
[2] Lingnan Normal Univ, Sch Phys Sci & Technol, Zhanjiang 524048, Peoples R China
来源：
PROGRESS IN ELECTROMAGNETICS RESEARCH LETTERS | 2015年 / 57卷
关键词：
D O I：
10.2528/PIERL15092003
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, a theoretical analysis of numerical dispersion of the three-dimensional (3-D) high-order finite-difference time-domain (FDTD) method with weighted Laguerre polynomials (WLPs) is presented. The phase velocity of numerical wave modes is relevant to the direction of wave propagation, grid discretization and time-scale factor. The formula to determine a suitable time-scale factor is derived. By a theoretical evaluation, the dispersion errors for the 3-D high-order WLP-FDTD scheme with different time-scale factors are obtained. Finally, one numerical example is included to validate the effectiveness of the theoretical solution of the time-scale factor.
引用
收藏
页码：73 / 77
页数：5
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