TRANSMISSION THROUGH AN IONIZED MEDIUM IN THE PRESENCE OF A STRONG MAGNETIC FIELD
Abstract
The effects of a UHF telemetry signal propagating through the ionized region was investigated. The effects of applying a strong local magnetic field to transmission of radio waves through a highly conductive plasma close to the surface of a slotANTENNA IN A GROUND PLANE ARE DESCRIBED. To obtain enhancement of transmission, a particular relationship must exist among the collision frequency of the plasma, the electron gyrofrequency of the magnetic field, and the impressed angular frequency. This relationship is discussed. Data showing the amplitude levels of the orthogonal components of the radiated field in the afterglow region of a pulse RF discharge indicate that magneto-ionic enhancement was achieved. In addition to this enhancement, the magnetic field exerts a pressure on the plasma which causes it to bloom within the confines of the magnetic field lines. Consequences of this perturbation on the propagation are discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1961
- Accession Number
- AD0259157
Entities
People
- H. Rothman
- T. Morita
Organizations
- SRI International