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色散媒质中ADI-FDTD的PML

王禹 袁乃昌

王禹, 袁乃昌. 色散媒质中ADI-FDTD的PML[J]. 电子与信息学报, 2005, 27(10): 1677-1680.
引用本文: 王禹, 袁乃昌. 色散媒质中ADI-FDTD的PML[J]. 电子与信息学报, 2005, 27(10): 1677-1680.
Wang Yu, Yuan Nai-chang. PML Implementation for ADI-FDTD in Dispersive Media[J]. Journal of Electronics & Information Technology, 2005, 27(10): 1677-1680.
Citation: Wang Yu, Yuan Nai-chang. PML Implementation for ADI-FDTD in Dispersive Media[J]. Journal of Electronics & Information Technology, 2005, 27(10): 1677-1680.

色散媒质中ADI-FDTD的PML

PML Implementation for ADI-FDTD in Dispersive Media

  • 摘要: 基于交替方向隐式(ADI)技术的时域有限差分法(FDTD)是一种非条件稳定的计算方法,该方法的时间步长不受Courant稳定条件限制,而是由数值色散误差决定。与传统的FDTD相比, ADI-FDTD增大了时间步长, 从而缩短了总的计算时间。该文采用递归卷积(RC)方法导出了二维情况下色散媒质中ADI-FDTD的完全匹配层(PML)公式。应用推导公式计算了色散土壤中目标的散射,并与色散媒质中FDTD结果对比,在大量减少计算时间的情况下,两者结果符合较好。
  • Yee K S. Numerical solution of initial boundary problems involving Maxwells equations in isotropic media. IEEE Trans on AP, 1966, 14(4): 302-307.[2]Takefumi Namiki. A new FDTD algorithm based on alternating direction implicit method[J].IEEE Trans. on MTT.1999, 47(10):2003-2007[3]Takefumi Namiki. 3D ADI-FDTD methodunconditionally stable time domain algorithm for solving full vector Maxwells equations[J].IEEE Trans. on MTT.2000, 48(10):1743-1748[4]Zheng Fenghua, Chen Zhizhang, Zhang Jiazong. Toward the development of three-dimensional unconditionally stable finite difference time domain method[J].IEEE Trans. on MTT.2000, 48(9):1550-1558[5]Wang Shumin, Teixeira F L. An efficient PML implementation for the ADI-FDTD method. IEEE MGWL, 2003, 13(2): 72-74.[6]Gedney S D, et al. Perfectly matched layer media with CFS for an[7]unconditionally stable ADI-FDTD method. IEEE Trans on AP,[8]01, 49(11): 1554-1559.[9]Liu Gang, Gedney S D. Perfectly matched layer media for an unconditionally stable three-dimensional ADI-FDTD method. IEEE MGWL, 2000, 10(7): 261-263.[10]Luebbers R. A frequency-dependent finite difference time domain formulation for dispersive materials. IEEE Trans. on EMC, 1990, 32(3): 222-227.[11]Uno T. Perfectly matched layer absorbing boundary condition for dispersive medium. IEEE MGWL, 1997, 7(9): 264-266.
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出版历程
  • 收稿日期:  2004-04-26
  • 修回日期:  2004-11-08
  • 刊出日期:  2005-10-19

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