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An Efficient Time-Domain Electromagnetic Solution Using the Time-Domain Variable Resolution Concept  

Kim Hyung-Hoon (Department of Electrical and Computer Engineering, Hanyang University)
Park Jong-Il (Department of Electrical and Computer Engineering, Hanyang University)
Kim Hyeong-Dong (Department of Electrical and Computer Engineering, Hanyang University)
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Abstract
To make the best use of known characteristics of the alternating-direction-implicit finite-difference time-domain (ADI-FDTD) method such as unconditional stability and modeling accuracy, an efficient time domain solution with variable time-step size is proposed. Numerical experiment shows that a time-step size for a given mesh size can be increased preserving a desired numerical accuracy over frequencies of interest. The proposed method can be used to analyze electromagnetic problems with reduced computation time.
Keywords
ADI Technique; FDTD; Computational Electromagnetics;
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