Propagation Characteristics of a Magneto-Ionic Duct

The propagation characteristics of a uniform magnets-ionic duct of circular cross-section are determined for frequencies higher than the cyclotron frequency - The ratios: plasma wavelength/free space wavelength and power flowing in the plasma/power flowing outside are evaluated and discussed as a function of the diameter/wavelength ratio and of the plasma permittivity for the propagation of circularly symmetrical modes. The Brillouin diagrams for frequencies higher and lower than the cyclotron frequency are also derived.