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TWO-STEP S THOMPSON-FDTD METHOD
Thompson-FDTD方法中的两步法

Keywords: Thompson transformation,FDTD,Arbitrarily shaped dielectric object,Electromagnetic scattering
Thompson变换
,时域有限差分,任意形状介质,电磁散射

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Abstract:

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 for 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 wilfully dispose the grid distribution and thus better numerical accuracy is achieved. The numerical simulation further confirms its validity.

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