Novel implicit method for faster modeling of low frequency EM problems in the time domain

This report describes a novel implicit solver method for modeling electromagnetic interactions in the time domain. It is designed to outperform finite difference time domain (FDTD) on EM modeling problems with fine spatial detail. The method is novel in that it computes electric and magnetic potenti...

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Bibliographic Details
Published in2017 Progress in Electromagnetics Research Symposium - Fall (PIERS - FALL) pp. 1794 - 1800
Main Authors Ottusch, J. J., Visher, J. L.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2017
Subjects
Boundary conditions
Electric potential
Finite difference methods
Laplace equations
Mathematical model
Time-domain analysis
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Summary:This report describes a novel implicit solver method for modeling electromagnetic interactions in the time domain. It is designed to outperform finite difference time domain (FDTD) on EM modeling problems with fine spatial detail. The method is novel in that it computes electric and magnetic potentials rather than fields and in the way it efficiently solves a large, sparse system of linear equations at each time step using a fast, multi-grid Laplace solver. We describe the method and present results from our numerical implementation.
DOI:10.1109/PIERS-FALL.2017.8293429