Abstract
We present a new multitrace boundary integral equation (BIE) formulation for the solutions of the time-harmonic electromagnetic (EM) scattering from large and deep cavities. Comparing to previously integral equation formulations, the new formulation has two major benefits: 1) it leads to a wellconditioned system equation after multiplicative Schwarz preconditioning and 2) the localized impedance matrices arising from decomposed boundary value problems are immune from cavity resonance effects. We outline the key technical aspects of the new multitrace formulation, give the details of the numerical analysis and report numerical experiments verifying the analysis, and display the capabilities of the proposed methods.
| Original language | English (US) |
|---|---|
| Article number | 7163312 |
| Pages (from-to) | 4446-4457 |
| Number of pages | 12 |
| Journal | IEEE Transactions on Antennas and Propagation |
| Volume | 63 |
| Issue number | 10 |
| DOIs | |
| State | Published - Oct 1 2015 |
| Externally published | Yes |
Keywords
- Boundary integral equation (BIE)
- Domain decomposition (DD) method
- Electromagnetic (EM) scattering
- Maxwell's equations
ASJC Scopus subject areas
- Electrical and Electronic Engineering