Finite-difference time-domain algorithm for dispersive media based on Runge-Kutta exponential time differencing method

被引：36

作者：

Liu, Song ^{[1
,2
]}

Zhong, Shuangying ^{[2
]}

Liu, Shaobin ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Coll Informat Sci & Technol, Nanjing 210016, Peoples R China

[2] Nanchang Univ, Sch Sci, Nanchang 330031, Jiangxi, Peoples R China

来源：

INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES | 2008年 / 29卷 / 03期

关键词：

finite difference time domain (FDTD) methods; Runge-Kutta exponential time differencing (RKETD); unmagnetized plasma;

D O I：

10.1007/s10762-008-9327-z

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：

The electromagnetic propagation in dispersive media is modeled using finite difference time domain (FDTD) method based on the Runge-Kutta exponential time differencing (RKETD) method. The second-order RKETD-FDTD formulation is derived. The high accuracy and efficiency of the presented method is confirmed by computing the transmission and reflection coefficients for a nonmagnetized collision plasma slab in one dimension. The comparison of the numerical results of the RKETD and the exponential time differencing (ETD) algorithm with analytic values indicates that the RKETD is more accurate than the ETD algorithm.

引用

页码：323 / 328

页数：6

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