Accession Number : ADA141746

Title :   On the Scattering of Electromagnetic Waves by Perfectly Conducting Bodies Moving in Vacuum. Part 1. Formulation and Reformulation of the Scattering Problem.

Descriptive Note : Final technical rept.,


Personal Author(s) : Dallas,A. G.

Report Date : APR 1984

Pagination or Media Count : 310

Abstract : The problem of determining the scattered electromagnetic field produced when an initially quiescent incident field impinges upon a perfectly conducting body moving and deforming in vacuum is originally formulated as an initial-boundary-value problem for Maxwell's equations in a noncylindrical exterior domain in space-time. The motion and deformation of the scatterer are allowed to be fairly general, the essential hypotheses being that the boundry of its space-time track is smooth and can be mapped and smoothly onto a cylinder, while the speeds of points on the body must remain less than that of light in vacuum. Within this setting, uniqueness theorems are proven for various initial-boundary-value problems for a system of generalized Maxwell equations (in particular, for the scattering problem), and for the scalar wave equation, in noncylindrical domains.

Descriptors :   *Boundary value problems, *Maxwells equations, *Electromagnetic scattering, *Electromagnetic radiation, *Moving targets, Electromagnetic fields, Vacuum, Time dependence, Scalar functions, Wave equations, Interactions

Subject Categories : Numerical Mathematics
      Electricity and Magnetism

Distribution Statement : APPROVED FOR PUBLIC RELEASE