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This paper proposes a new technique (explicit technique, yet unconditionally stable) for 2D FDTD algorithm. This method is not limited by the Courant-Friedrich-Levy (CFL) condition and is unconditionally stable beyond the CFL limit; though this is an explicit method. Here numerical formulations are presented and simulation results are compared with other FDTD algorithms.
In this paper, we propose a fast electromagnetic simulation technique using multi-rate FDTD (finite-difference time-domain) method. In this work, the time step size is selected according to the grid cell size of each part in the given space. Then, this method can reduce the calculation costs without violating the stability condition. Finally, some electromagnetic simulations of the example 2-D free...
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