RF PROBE TECHNIQUES FOR IONOSPHERIC MEASUREMENTS

Abstract

Three radio frequency (rf) probe techniques - Standing Wave Impedance Probe, Plasma Frequency Probe, and Resonance Rectification Probe - have been simultaneously flown on rockets for ionospheric measurements. The results of the three probes are compared to establish the relationships between them. The Impedance Probe and Plasma Frequency Probe measurements are in general agreement with each other and with other independent measurements. A model of antenna- ionospheric interaction is used which neglects ion sheath and magnetic field effects. The Resonance Rectification Probe shows resonance effects including peaks and minima which are a function of probe dc bias. The frequency of the dominant resonance peak does not correspond to the plasma frequency, but is near a lower frequency of an impedance series resonance as measured by the Plasma Frequency Probe.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1965
Accession Number
AD0628215

Entities

People

  • A. M. Despain
  • J. C. Ulwick
  • K. D. Baker

Organizations

  • Stanford University

Tags

Communities of Interest

  • Advanced Electronics
  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Contractors
  • Department Of Defense
  • Dipole Antennas
  • Electron Density
  • Electrons
  • Frequency
  • Impedance
  • Magnetic Fields
  • Measurement
  • Radio Frequency
  • Resonance
  • Resonant Frequency
  • Standing Waves
  • United States
  • Waves

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Plasma Physics / Magnetohydrodynamics