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A modified Liao's second-order absorbing boundary condition (ABC) is presented in this paper. With the modification, the proposed Liao's ABC can be stabilized even after several ten thousand time steps. This is useful in finite-difference time-domain (FDTD) simulations for a significant period of time. Numerical examples show the effectiveness of the introduced ABC
A memory-efficient scalar wave finite-difference time-domain (FDTD) algorithm, using a two dimensional (2-D) mesh is proposed in this letter. The proposed algorithm requires one memory element per cell, instead of the usual three of the conventional 2-D Yee algorithm. This leads to a direct memory reduction of 66% in the storage of fields. Furthermore, the computational efficiency of this algorithm...
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