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 |
|---|---|
| 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 International Symposium on Electromagnetic Compatibility, EMC 2004 - Santa Clara, CA, 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
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Xiao, K., Pommerenke, D. J., & Drewniak, J. L. (2004). A three-dimensional FDTD subgridding algorithm based on interpolation of current density. IEEE International Symposium on Electromagnetic Compatibility, 1, 118-123.