公开(公告)号：EP4006947A1

公开(公告)日：2022-06-01

申请号：EP21210250.3

申请日：2021-11-24

申请人： Teledyne UK Limited

发明人： MINEO, Mauro ,  SALEEM, Kesar ,  CLAY, Daniel James

IPC分类号： H01J23/22 ,  H01J25/587

摘要： There is provided an anode for a magnetron, the anode comprising: a cylindrical shell defining a longitudinal axis, a centre of the shell for accommodating a cathode of the magnetron; a plurality of vanes arranged at angular intervals around the shell, wherein an angular separation between each vane and its adjacent vane is configured to provide a cavity resonator of the magnetron, wherein each vane has a width extending radially inwardly from the shell toward the centre of the shell, and has a length extending longitudinally in parallel with the longitudinal axis of the shell; and a plurality of annular strap rings for setting a resonant mode spectrum of the cavity resonator, wherein the strap rings are arranged at longitudinal intervals and concentrically with the longitudinal axis of the shell, wherein alternate vanes are configured to support the alternate strap rings, such that each vane couples alternate strap rings and each strap ring couples alternate vanes, wherein a cross-sectional dimension of at least a first strap ring of the plurality of strap rings is different from the cross-sectional dimension of at least a second strap ring of the plurality of strap rings.