Electromagnetic Scattering by the Delta Boundary Operator Method.
Abstract
An alternative and rigorous formulation of electromagnetic scattering - the Delta Boundary Operator (DBO) technique - has been reported in the literature. Use of a simple approximation allows fast and accurate calculations of scattering by rough planar surface. Here an investigation of the wider applicability of approximate DBO techniques is pursued. Attention is focussed on scattering by simple smooth bodies in the so-called resonance region, where the approximations of high frequency asymptotic techniques are often inadequate. It is shown that application of approximate DBO methods leads to predictions of non-vanishing surface currents in unlit regions and smooth transition currents at shadow boundaries. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1991
- Accession Number
- ADA240669
Entities
People
- I. D. King
Organizations
- Royal Signals and Radar Establishment