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Methods in Electromagnetics

Fourth-Order Locally One-Dimensional FDTD Method

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Pages 2035-2043 | Published online: 03 Apr 2012
 

Abstract

A fourth-order two-dimensional (2-D) locally one-dimensional finite-difference time-domain (LOD-FDTD) method is introduced. The numerical dispersion error of this new approach is studied by comparison to the original second-order method. This new approach is proved to be an unconditionally stable FDTD method with improved numerical dispersion.

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