Accession Number:

AD0731267

Title:

Scattering of Electromagnetic Waves in a Spinor Formalism. II. Comments on the Eikonal Approach to Scattering from Coated Perfect Conductors,

Descriptive Note:

Corporate Author:

RAND CORP SANTA MONICA CALIF

Personal Author(s):

Report Date:

1970-11-01

Pagination or Media Count:

21.0

Abstract:

The eikonal approach is applied to the problem of the scattering of scalar and electromagnetic waves from an excluded volume in the presence of a weak external potential. In the case of scalar Schroedinger waves, a compact closed form for the scattered wave function is derived. The scattering of electromagnetic waves is treated in the spinor formalism previously developed by the author. The excluded volume is eventually taken to be a perfectly conducting cone, the external potential a coating of thickness delta, with complex dielectric constant epsilon primed, and permeability mu tacitly assumed equal to 1. It is shown that to order N-1, where N square root of epsilon primed mu, the eikonal approach in the spinor formalism yields results equivalent to those obtained from the vector theory of Uberall in the particular case of nose-on backscattering, using the eikonal function corresponding to straight-line propagation. Author

Subject Categories:

  • Electricity and Magnetism
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE