Excitation of the Magnetospheric Cavity by Space-Based ELF/VLF Transmitters

Abstract

During the period of performance Stanford University: 1. Developed an analytical model describing the distribution of current along a dipole antenna radiating ELF/VLF waves in the magnetospheric cavity. It was found that the antenna orientation had an important effect upon the radiation characteristics of the dipole antenna. 2. Mapped out the power distribution of ELF/VLF waves radiated by space-based transmitters throughout the magnetospheric cavity for a range of wave normal angles. It was found that the radiated waves can endure in the cavity for as long as 80 seconds before being absorbed through Landau damping.

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Document Details

Document Type
Technical Report
Publication Date
Dec 06, 2004
Accession Number
ADA437674

Entities

People

  • P. Kulkarni
  • Timothy F. Bell
  • Umran Savaş İnan

Organizations

  • Stanford University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Antenna Configurations
  • Antennas
  • Contracts
  • Dielectric Permittivity
  • Dipole Antennas
  • Dipoles
  • Excitation
  • Frequency
  • Integral Equations
  • Orientation (Direction)
  • Radiation
  • Space Based
  • Spacecraft
  • Transmitters
  • Universities
  • Wave Power

Fields of Study

  • Physics

Readers

  • Phased Array Antenna Design.
  • Pulsed Power and Plasma Physics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Space