A PLANE WAVE EXPANSION THEOREM FOR CYLINDRICALLY RADIATED FIELDS.

Abstract

An asymptotic expansion for two-dimensional outwardly radiating fields is developed from an integral representation of these fields by means of a saddle point integration. The expansion is given in terms of inverse powers of the distance from a point in a fixed region A to a point in a circular neighborhood at a large distance from A. The coefficients are expressed in terms of plane waves and linear combinations of derivatives of plane waves with respect to angle of incidence. The theorem may be employed in scattering problems in reducing scattering of arbitary two-dimensional fields by arbitrary cylinders to scattering of plane waves by the arbitrary cylinders. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1964
Accession Number
AD0602236

Entities

People

  • N. R. Zitron
  • Steven N. Karp

Organizations

  • New York University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Angle Of Incidence
  • Asymptotic Series
  • Coefficients
  • Geometry
  • Integrals
  • Mathematics
  • Plane Waves
  • Scattering
  • Two Dimensional
  • Waves

Fields of Study

  • Mathematics
  • Physics

Readers

  • Calculus or Mathematical Analysis
  • Fluid Mechanics and Fluid Dynamics.