Analysis of modes radiation, transmission, and loss properties for the un-magnetized cylindrical plasma antenna

Abstract

The phase properties of both azimuthal and non-azimuthal symmetric surface waves are investigated analytically in an un-magnetized cylindrical plasma column based on the transcendental dispersion relation. A novel method of calculating the transmission power and loss power in the plasma column in terms of complex electric conductivity is proposed. Based on the fully calculated dispersion properties and field profiles obtained from the field matching method, it is shown that the electron plasma frequency has an evident influence on dispersion curves for both azimuthal and non-azimuthal symmetric surface waves; the radiation patterns of the m = 0, m = 1, and m = 2 modes have an evident dependence on the wave frequency; and the transmission power and loss power increase evidently when ωpe/ω > 1, while the collision frequency also has a notable influence on the transmission power for all the three modes.