PAST №5 2002

Yu.A. Akimov, M.P. Azarenkov, V.P. Olefir, A.E. Sporov
Department of Physics and Technology, Kharkiv National University, Kharkiv, Ukraine,
E-mail: olefir@pht.univer.kharkov.ua; Fax: (057) 335 3977; Tel: (057) 335 0509

This report is devoted to the investigation of dispersion properties and axial field structure of the axial-symmetric high-frequency electromagnetic E-waves that propagate in coaxial magnetized waveguide structure, partially filled with by radially non-uniform plasma. On the axis of the waveguide there is a metal rod of radius R₁, through which the direct current flows. This current creates a radially non-uniform azimuth magnetic field. The plasma layer occupies the region R₁< r < R₂. Between plasma and external metal wall of the waveguide (radius R₃) is vacuum gap. The plasma is considered in a hydrodynamic approach as cold collisionless medium. The influence of the geometric parameters of waveguide structure, plasma non-uniformity, direction and value of the direct current on phase characteristics, axial field structure and wave power flux of axial-symmetric Е-waves is considered.

PACS: 52.35.-g