Patent ID: 6768265
Filing Date: 2004-07-27
Classification: H01J

Abstract:
A multiple beam RF device, said device comprising:a magnetic field enclosure having a central axis, a cylindrical body oriented along said central axis, a cathode end, and a collector end; a solenoidal field generator located within said magnetic field enclosure and generating a field substantially aligned with said central axis; said magnetic field enclosure cathode end and said magnetic field enclosure collector end each having n apertures; an RF circuit having a plurality said n of beam tunnels, each said beam tunnel having a beam tunnel axis, each said beam tunnel including drift tubes and gaps, said beam tunnel extending from said cathode end aperture to said collector end aperture, said cathode end aperture forming an anode; a plurality n of thermionic cathodes; a plurality said n of collectors; a magnetic field corrector external to said magnetic field enclosure and enclosing each said cathode.