A New HIE-PSTD Method for Solving Problems with Fine and Electrically Large Structures Simultaneously
Keywords:
Courant limit, FDTD method, Fourier transform, hybrid implicit explicit differenceAbstract
A new hybrid implicit-explicit difference and pseudospectral (PS) scheme is presented for solving the electromagnetic problems which have fine features and are electrically large. The maximum time-step size in this method is only determined by two spatial discretization which only need two cells per wavelength. The formulation of the method is presented and the time stability condition of the method is demonstrated. This method is more efficient than the finite-difference timedomain (FDTD) method in terms of computer memory and computation time, which is demonstrated through numerical examples.
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