TRANSIENT WAVE PROPAGATION IN INHOMOGENEOUS IONIZED MEDIA,

Abstract

Transient wave responses of two different inhomogeneous ionized media - the exponential medium and the symmetrical Epstein layer - are studied. By means of the linearized wave equations exact expressions for the unit step wave responses are derived. In both cases they can be written in closed mathematical forms, namely as a Bessel function and a Legendre function respectively. The unit step modulated carrier responses, written as convolution integrals, are computed at different heights in the media and at different carrier frequencies, i.e. the variations of the electric field, the magnetic field and the energy flow are determined. This makes it possible to compare the exact signal envelopes with the earlier obtained approximate results. Futhermore the strong signal distortion at tunnel transmission through a thin symmetrical Epstein layer is studied in detail. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1966
Accession Number
AD0654323

Entities

People

  • B. O. Ronnang

Tags

DTIC Thesaurus Topics

  • Bessel Functions
  • Carrier Frequencies
  • Convolution
  • Convolution Integrals
  • Distortion
  • Electric Fields
  • Equations
  • Frequency
  • Integrals
  • Legendre Functions
  • Magnetic Fields
  • Mathematical Analysis
  • Mathematics
  • Wave Equations
  • Wave Propagation

Readers

  • Approximation Theory.
  • Plasma Physics / Magnetohydrodynamics