公开(公告)号：US20020125827A1

公开(公告)日：2002-09-12

申请号：US09802585

申请日：2001-03-08

Applicant: GENVAC AeroSpace Corporation

Inventor： Gerald T. Mearini ,  Laszlo A. Takacs

IPC: H01J023/06

CPC classification number: H01J23/05 ,  H01J2201/30457 ,  H01J2201/32

Abstract: A radio frequency magnetron device for generating radio frequency power includes a cathode at least partially formed from a diamond material. An anode is disposed concentrically around the cathode. An electron field is provided radially between the anode and the cathode. First and second oppositely charged pole pieces are operatively connected to the cathode for producing a magnetic field in a direction perpendicular to the electric field. A filament is provided within the electron tube which when heated produces primary electrons. Alternatively, a voltage is applied to the anode which causes primary electrons to emit from the diamond coated cathode. A portion of the primary electrons travel in a circular path and induce radio frequency power. Another portion of the primary electrons spiral back and collide with the cathode causing the emission of secondary electrons. The secondary electron emission sustains operation of the magnetron device once the device has been started.

Abstract translation: 用于产生射频功率的射频磁控管装置包括至少部分由金刚石材料形成的阴极。 阳极围绕阴极同心地设置。 在阳极和阴极之间径向设置电子场。 第一和第二相对带电的极片可操作地连接到阴极，以在垂直于电场的方向上产生磁场。 在电子管内提供一根灯丝，当加热时产生一次电子。 或者，向阳极施加电压，其使一次电子从金刚石涂覆的阴极发射。 一部分一次电子以圆形路径行进并且感应射频功率。 一次电子的另一部分螺旋回来并与阴极碰撞引起二次电子的发射。 一旦装置启动，二次电子发射就能维持磁控管装置的操作。