Samenvatting
The fields scattered by dielectric objects placed inside metallic waveguides can efficiently be computed via a finite-difference frequency-domain (FDFD) method. This involves large, sparse linear systems of equations that may be solved using preconditioned Krylov-subspace methods. We propose a preconditioner that uses fast discrete trigonometric transforms and is based on a physical approximation. Simulations show significant gain in terms of iteration count and computation time. Moreover, with the new preconditioner, the required number of iterations is independent of the grid size.
| Originele taal-2 | Engels |
|---|---|
| Titel | Proceeding of the 2007 International Conference on Electromagnetics in Advanced Applications (ICEAA 2007) 17-21 September 2007, Torino, Italy |
| Redacteuren | R.D. Graglia |
| Plaats van productie | Torino, Italy |
| Uitgeverij | Politecnico di Torino |
| Pagina's | 544-547 |
| ISBN van geprinte versie | 978-1-424-40766-8 |
| DOI's | |
| Status | Gepubliceerd - 2007 |
| Evenement | 10th International Conference on Electromagnetics in Advanced Applications (ICEAA 2007) - Torino, Italië Duur: 17 sep. 2007 → 21 sep. 2007 Congresnummer: 10 |
Congres
| Congres | 10th International Conference on Electromagnetics in Advanced Applications (ICEAA 2007) |
|---|---|
| Verkorte titel | ICEAA 2007 |
| Land/Regio | Italië |
| Stad | Torino |
| Periode | 17/09/07 → 21/09/07 |
| Ander | ICEAA 2007, Torino, Italy |