Abstract
Two numerical experiments have been conducted using a three dimensional integral equation solver (TRIMOM). For target with thin structures, combined field integral equation (CFIE) yielded better conditioned matrix equation. For Galerkin's method, the diagonal preconditioning significantly reduced the condition number of the impedance matrix in case of non-uniform grid. For TRIMOM, the RC breakdown frequency is about three orders of magnitude lower than the typical frequency corresponding to 0.1 λ edge length. As a result, in an iterative solver, CFIE yields more accurate RCS and faster convergence.
| Original language | English |
|---|---|
| Pages (from-to) | 1746-1749 |
| Number of pages | 4 |
| Journal | IEEE Antennas and Propagation Society, AP-S International Symposium (Digest) |
| Volume | 3 |
| State | Published - 1996 |
| Event | Proceedings of the 1996 AP-S International Symposium & URSI Radio Science Meeting. Part 1 (of 3) - Baltimore, MD, USA Duration: Jul 21 1996 → Jul 26 1996 |
ASJC Scopus subject areas
- Electrical and Electronic Engineering