公开(公告)号：US3600629A

公开(公告)日：1971-08-17

申请号：US3600629D

申请日：1969-11-12

Applicant: VARIAN ASSOCIATES

Inventor： FENSTER PAUL ,  HORRIGAN JOHN B ,  SAFRAN LEONARD

IPC: H01J23/207 ,  H01J25/50

CPC classification number: H01J23/207

Abstract: A rising-sun magnetron tube is disclosed employing a composite tuning ring structure axially translatable in an end space region adjacent the open ends of the anode resonators. The composite tuning ring includes a pair of conductive rings separated by a ceramic insulator. In a preferred embodiment the conductive ring facing the anode circuit is disposed in axial registration with the back wall of the small anode resonators and has a radial width less than that of the other ring. The resultant tuner has increased tuning range and a more linear tuning rate to facilitate temperature compensation.