Title :
Excitation and propagation of whistler waves in a magnetoplasma in the presence of a cylindrical duct with decreased density
Author :
Bakharev, Pavel V. ; Kudrin, Alexander V. ; Zaboronkova, Tatyana M.
Author_Institution :
Dept. of Radiophys., Univ. of Nizhny Novgorod, Nizhny Novgorod, Russia
Abstract :
Excitation and propagation of whistler-mode waves in an unbounded magnetoplasma in the presence of a cylindrical duct with decreased plasma density are studied. Using a rigorous solution for the total source-excited field comprising both the discrete and continuous parts of the spatial spectrum of waves, the radiation resistance of a source in the form of a loop antenna is determined. Conditions have been revealed under which the power radiated from the loop antenna immersed in a decreased-density duct is dominated by the contribution of either discrete-or continuous-spectrum modes.
Keywords :
electromagnetic wave propagation; whistlers; continuous-spectrum modes; cylindrical duct; discrete-spectrum modes; loop antenna; radiation resistance; unbounded magnetoplasma; whistler waves; whistler-mode waves; Diffraction; Ducts; Electrons; Frequency; Magnetic analysis; Magnetic cores; Plasma density; Plasma sources; Plasma waves; Tensile stress;
Conference_Titel :
Days on Diffraction, 2008. DD '08. Proceedings of the International Conference
Conference_Location :
St. Petersburg
Print_ISBN :
978-5-9651-0277-8
