Abstract
A three-dimensional snbgridding 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 500,000 time steps. The reflection in time domain at the subgridding interface was calculated to test the accuracy of the subgridding algorithm.
Original language | English |
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Pages (from-to) | 118-123 |
Number of pages | 6 |
Journal | IEEE International Symposium on Electromagnetic Compatibility |
Volume | 1 |
Publication status | Published - 8 Oct 2004 |
Externally published | Yes |
Event | 2004 IEEE International Symposium on Electromagnetic Compatibility: EMC 2004 - Santa Clara, United States Duration: 9 Aug 2004 → 13 Aug 2004 |
Keywords
- Electric and magnetic current density
- FDTD
- Linear interpolation
- Stability
- Subgridding
- Symmetry
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering