Chemical Injection into a Reentry Plasma to Improve High Power EM Wave Transmission

Abstract

For purposes of electronic countermeasures, it is desirable to maximize the amount of power that can be transmitted from a reentry vehicle by suppressing the onset of antenna voltage breakdown. This can be accomplished by injecting chemicals into the reentry plasma sheath. The report describes a numerical procedure for calculating the amount of power that can be transmitted through a chemically seeded plasma. The power levels of a plane electromagnetic wave incident on a reentry plasma slab are sufficient to induce electron temperature changes. As a result, the electron density and effective collision frequency vary with time.

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Document Details

Document Type
Technical Report
Publication Date
Sep 18, 1972
Accession Number
AD0753077

Entities

People

  • Robert J. Papa

Organizations

  • Air Force Cambridge Research Laboratories

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Boltzmann Equation
  • Chemical Reactions
  • Computer Programs
  • Current Density
  • Dielectric Permittivity
  • Distribution Functions
  • Electric Fields
  • Electron Density
  • Electronic Countermeasures
  • Electrons
  • Equations
  • Flow Fields
  • Frequency
  • Ion Density
  • Magnetic Fields
  • Maxwells Equations
  • Wave Propagation

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Fluid Dynamics.
  • Plasma Physics / Magnetohydrodynamics

Technology Areas

  • Microelectronics