Singularities, Coupling Coefficients, and Mode Vectors for a Thin Wire Scatterer Parallel to a Lossy Ground.
Abstract
The Singularity Expansion Method (SEM) coupled with the reflection coefficient approximation seems to be an appropriate technique for analyzing a cylindrical scatterer over a finitely conducting ground. Pole locations of the cylinder over perfect ground calculated by investigators were found to be identical to those calculated in this analysis when the ground conductivity is large. Also, when the ground conductivity is reduced with the relative permittivity held at unity, calculated pole locations agree with those of the free space problem. These facts add credence to the reflection coefficient technique. In general, it is found that displacement of the singularities from their free space position is a function of discontinuity in the ground plane. The mechanism for discontinuity is seen to be somewhat immaterial. Mode vectors corresponding to first layer singularities show littler or no dependence on the parameters of the problems. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 15, 1979
- Accession Number
- ADA080094
Entities
People
- T. H. Shumpert
Organizations
- Auburn University