Fast multipole method for scattering from 3-D PEC targets situated in a half-space environment
✍ Scribed by Norbert Geng; Anders Sullivan; Lawrence Carin
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 205 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0895-2477
No coin nor oath required. For personal study only.
✦ Synopsis
The fast multipole method FMM is extended to the problem of an arbitrary, three-dimensional perfect conductor situated abo¨e or below a lossy, dielectric half space. The interactions between basis and testing functions within an FMM cluster, and for nearby clusters, are handled ¨ia the rigorous dyadic Green's function, with the latter e¨aluated efficiently using the complex-image technique. Intercluster interactions are modeled as in the free-space FMM, with the dyadic Green's function approximated ¨ia real images and equi¨alent reflection coefficients; these approximations ha¨e pro¨en to be highly accurate. Example results are presented for a large trihedral fiducial target, in free space and abo¨e a lossy, dispersi¨e half space, with comparisons pre-( ) sented between the FMM and a rigorous method-of-moments MoM solution.