PAST №5 2002
SYMMETRIC SURFACE WAVES AT NON-UNIFORM MAGNETIZED STRUCTURES WITH AZIMUTH EXTERNAL MAGNETIC FIELD
Yu.A. Akimov, M.P. Azarenkov, V.P. Olefir, A.E. Sporov
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.