Abstract

An explicit formulation of the finite-difference time-domain-discrete surface integral (FDTD-DSI) technique has allowed a rigorous study of numerical dispersion for the method. The study shows that the DSI- and tensor-based FDTD methods do not have the same numerical dispersion relation. It also clarifies the recently reported discrepancies in the dispersion relation between the two approaches. This study also shows that the tensor-based FDTD algorithm exhibits better dispersion properties for a two-dimensional uniformly skewed mesh.

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Keywords and Phrases

Algorithm; Dispersion Relations; Finite Difference Time-Domain Analysis; Finite-Difference Time-Domain-Discrete Surface Integral; Nonorthogonal FDTD-DSI; Numerical Dispersion Relation; Tensor; Tensors; Two-Dimensional Uniformly Skewed Mesh

International Standard Serial Number (ISSN)

1051-8207

Document Type

Article - Journal

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 1996 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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