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Volume 20 Issue 6
Nov.  1998
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Liao Cheng, Ren Lang. TWO-STEP S THOMPSON-FDTD METHOD[J]. Journal of Electronics & Information Technology, 1998, 20(6): 821-827.
Citation: Liao Cheng, Ren Lang. TWO-STEP S THOMPSON-FDTD METHOD[J]. Journal of Electronics & Information Technology, 1998, 20(6): 821-827.

TWO-STEP S THOMPSON-FDTD METHOD

  • Received Date: 1996-09-25
  • Rev Recd Date: 1997-09-23
  • Publish Date: 1998-11-19
  • This paper combines the differential-Thompson transformation involved in hydromechanics with the finite difference time domain (FDTD) technique to form Thompson-FDTD method. This method is applied by the first time to calculate the electromagnetic scattering properties of arbitrarily shaped dielectric objects. This method has at least two obvious advantages: It can transform arbitrary shaped bodies into regular structures and thus the boundary conditions are matched accurately; it can willfully dispose the grid distribution and thus better numerical accuracy is achieved. The numerical simulation further confirms its validity.
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  • Yee K S. Numerical solution of initial boundary value problems involving Maxwells equations in isotropic media. IEEE Trans.on AP, 1966, AP-14(3): 302-307.[2]Fusco M. FDTD algorithm in curvilinear coordinates. IEEE Trans.on AP, 1990, AP-38(1): 76-89.[3]Chen J S, Yee K S, et al. Conformal FD-TD with overlap grids,IEEE Trans. on AP, 1992, AP-40(9): 1068-1075.[4]Zivanovic S S, Yee K S, Mei K K. A subgridding method for the finite difference-time domain method to solve Maxwells equations. IEEE Trans.on MTT, 1991, MTT-39(3): 471-479.[5]Thames F C, Thompson J F, et al. Numerical solution for viscous and potential flow about arbitrary two-dimensional bodies using body-fitted coordinates system[J].J. Comp.Phys.1977, 24:245-273[6]Liao C, Zhao Y, tin W. New method for numerical solution of Maxwells equations. Electron. Lett. 1995, 31(4): 261-262.[7]廖成,任朗.Thompson变换-FDTD方法模拟不规则形体的电磁散射间题.西南交通大学学报,1996, 31(3): 318-322.[8]Liso C, Jen L. Numerical solution for EM scattering about arbitrary two-dimensional bodies with the use of the Thompson-FDTD method[J].Microwave and Opt. Tech. Lett.1996, 13(4):233-2363.0.CO;2-9' target='_blank'>[9]Bayliss A, Turkel E. Radiation boundary condition for wave-like equations[J].Commun. Pure Appl .Math.1980, 33:707-725
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