Accession Number : AD0873040

Title :   Radiation of a Magnetic Line Source Through a Wedge-Shaped Plasma Sheath.

Descriptive Note : Master's thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING

Personal Author(s) : Shuster, Jerrold Stuart

Report Date : MAR 1970

Pagination or Media Count : 113

Abstract : The radiation of a magnetic line source through a wedge-shaped, cold, isotropic plasma sheath is considered. The integral representation of the transmitted field is obtained with the aid of the Watson transform, and the residue series determined. The series summation is over the roots of a dispersion function which is a function of a plasma parameter, g. The roots of the dispersion function are counted, and located for both g real and positive and for g complex. Numerical computation of the far field radiation pattern is performed for various combinations of the plasma wedge angle, the source distance from the wedge vertex, and real values of g. From the results, it is concluded that attenuation effects can be reduced by operating at higher frequencies. (Author)

Descriptors :   *RADIO TRANSMISSION), (*MANNED SPACECRAFT, ATMOSPHERE ENTRY), (*COMMUNICATION AND RADIO SYSTEMS, BLACKOUT(PROPAGATION)), (*PLASMA SHEATHS, DIPOLE ANTENNAS, BOUNDARY VALUE PROBLEMS, INTEGRAL TRANSFORMS, NUMERICAL INTEGRATION, PARTIAL DIFFERENTIAL EQUATIONS, PROBLEM SOLVING, THESES.

Subject Categories : Plasma Physics and Magnetohydrodynamics
      Radiofrequency Wave Propagation
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE