Multiple-beam electron tube with cavity/beam coupling via drift tubes having facing lips
AssigneeThomson Tubes Electroniques
InventorsArmel Beunas, Georges Faillon
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Abstract
Disclosed is an multiple-beam electron tube built around an axis (Z). These electron beams go through at least one resonant cavity (10) coaxial with this axis (Z). The beams are contained on both sides of the cavity in drift tubes (3) that end in the cavity in lips (5'), facing each other in the cavity. The spacing between two facing lips is not constant. Application especially to multiple-beam klystrons with improved output.
Claims12
An electron tube comprising several electron beams substantially parallel to an axis Z, the electron beams going through at least one resonant cavity coaxial with and aligned along the Z axis and being contained in a plurality of drift tubes that end inside respective ones of said at least one cavities, said plurality of drift tubes inside said respective cavities having respective lips that face each other and that define an interaction space wherein, in order to homogenize the respective couplings between the cavity and the beams, a spacing between two facing lips varies in azimuth and is the maximum spacing in a zone of the interaction space close to the Z axis of the electron tube and is the minimum spacing in a zone of the interaction space that is distant from the Z axis of the electron tube.
Dependencies are inferred from the claim text.