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Electromagnetic Field Computation Using Space-Time Grid and Finite Integration Method

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1 Author(s)
Matsuo, T. ; Dept. of Electr. Eng., Kyoto Univ., Kyoto, Japan

A finite integration (FI) method on a space-time grid is studied for computation of electromagnetic wave propagation, where a nonuniform time-step distribution is naturally introduced. Orthogonality between dual grids is given by the Lorentz metric to obtain a constitutive equation for electromagnetic variables. Electromagnetic field computations show that the FI method on a nonuniform space-time grid yields correct wave propagation.

Published in:

Magnetics, IEEE Transactions on  (Volume:46 ,  Issue: 8 )