HIGH-POWER MICROWAVE TUBE WITH BEAM SPREADING IN THE COLLECTOR

摘要

The invention relates to a microwave tube consisting of an electron gun comprising a cathode that generates an electron beam (56) in a microwave structure of the tube, and a collector (50) for collecting electrons from the beam. In addition, the tube comprises a magnetic device (52) for spreading the beam in the collector such as to generate an amplitude-modulated periodic magnetic spread field Bblm. The invention is suitable for microwave power tubes.