INTERACTION OF A RADIATING SOURCE WITH A PLASMA EFFECT OF AN ELECTROACOUSTIC WAVE,
Abstract
When a radiating source is immersed in a homo geneous plasma of infinite extent, an electro acoustic wave may be excited in addition to thusual electromagnetic wave. The electroacoustic wave becomes a longitudinal plasma wave in the far zone of the source. The case of a Hertzian dipole in a lossless plasma is considered first. The fields of both the EM and plasma modes ex cited by the dipole are explicitly obtained, and the EM and plasma components of the radiation resistance of a Hertzian dipole are determined. The case of a cylindrical dipole antenna in a lossless plasma is investigated next. The far zone fields of both the EM and plasma modes are explicitly obtained, and the EM and plasma com ponents of the radiation resistance are then derived as functions of the antenna dimension and the plasma parameters. Finally, the case of a Hertzian dipole in a slightly lossy plasma is studied; the effect of collisions in a plasma on the radiation resistance of the immersed antenna is discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1963
- Accession Number
- AD0413324
Entities
People
- Kun-mu Chen
Organizations
- University of Michigan