Abstract

A three-dimensional subgridding algorithm for the finite difference time domain (FDTD) method is proposed in this paper. The method is based on interpolation of electric and magnetic current densities. The coarse-fine mesh ratio can be either 1:2 or 1:3. Results of a test model utilizing a lossless cavity excited with a dipole show no tendency of instability after 500000 time steps. The reflection in time domain at the subgridding interface was calculated to test the accuracy of the subgridding algorithm.

Meeting Name

IEEE International Symposium on Electromagnetic Compatibility (2004: Aug. 9-13, Santa Clara, CA)

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Keywords and Phrases

Magnetic Current Density; Meshes; Subgridding; Symmetry; Algorithms; Current Density; Finite Difference Method; Interpolation; Mathematical Models; Stability; Time Domain Analysis; Electromagnetism; Electric And Magnetic Current Density; FDTD; Linear Interpolation; Finite Difference Methods; Time Domain Analysis; Magnetic Domains; Testing; Geometry; Stability Criteria; Extrapolation; Spline; Electromagnetic Compatibility; Finite Difference Time-Domain Analysis

International Standard Book Number (ISBN)

780384431

International Standard Serial Number (ISSN)

1077-4076

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2004 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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