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

Hyung-Hoon KIM  Saehoon JU  Seungwon CHOI  Jong-Il PARK  Hyeongdong KIM  

IEICE TRANSACTIONS on Communications   Vol.E89-B   No.12   pp.3487-3490
Publication Date: 2006/12/01
Online ISSN: 1745-1345
DOI: 10.1093/ietcom/e89-b.12.3487
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Antennas and Propagation
ADI technique,  FDTD,  computational electromagnetics,  

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To make the best use of the 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 results show that a time-step size for a given mesh size can be increased preserving a desired numerical accuracy over frequencies of interest.