Radiation characteristics of a travelling-wave multi-turn† circular loop antenna in compressible electron plasma

Abstract

The paper is on extension of the authors1 previous work on travelling-wave circular loop and helical antennas immersed in an isotropic compressible electron plasma. In the present, paper the expressions for the electromagnetic and electroacoustic components of the radiation field and of radiation resistance in the case of on electrically largo multi-turn circular loop antenna in plasma having a travelling-wave current distribution are derived, finally, treating the multi-turn loop in vacuum as a particular case of the general results for the same in a plasma medium, expressions for electromagnetic field and radiation resistance have been obtained far different loop sizes and the number of turns in it. It is shown that its field and the radiation resistance, both in plasma and in vacuum, are seriously affected by the number of turns in the loop and under certain conditions much higher values of radiation resistance can be obtained.