公开(公告)号：US06313710B1

公开(公告)日：2001-11-06

申请号：US09567573

申请日：2000-05-04

申请人： Liming Chen ,  Hezhong Guo ,  Han Y. Chen ,  Ming H. Tsao ,  Tze T. Yang ,  Yi C. Tsai ,  Kwo R. Chu

发明人： Liming Chen ,  Hezhong Guo ,  Han Y. Chen ,  Ming H. Tsao ,  Tze T. Yang ,  Yi C. Tsai ,  Kwo R. Chu

IPC分类号： H03B904

CPC分类号： H01J23/20 ,  H01J25/11 ,  H03B9/01

摘要： The interaction structure with integral coupling and bunching section and method of use of the present invention produces backward wave oscillations in an RF structure which combines ballistic bunching and extended beam-wave interaction in a complex resonator assembly. The complex extended interaction structure includes a five-gap electromagnetically-coupled cavity structure with a coaxial section inserted between the first and second cavities. The first cavity serves as a buncher cavity while the four subsequent cavities serve as energy cavities. In the coaxial section, beam and wave propagate in separate channels. The field in the buncher cavity is coupled to the four subsequent energy extraction cavities through the wave channel between the inner and outer conductors of the coaxial section, while the electron beam drifts along a cylindrical channel cut through the inner conductor of the coaxial section. The complex extended interaction structure of the present invention provides a drift channel (cutoff to the wave) to allow ballistic bunching of electrons. Since the buncher cavity is strongly coupled to the energy extraction cavities, the first gap exerts a large modulating voltage on the electrons, sufficient to produce a tightly bunched electron beam upon entrance into the energy extraction cavities.

摘要翻译： 具有整体耦合和聚束部分的相互作用结构和本发明的使用方法在复合谐振器组件中组合弹道聚束和延伸的波束相互作用的RF结构中产生反向波振荡。 复合延伸的相互作用结构包括五孔电磁耦合空腔结构，其中插入在第一和第二腔之间的同轴部分。 第一腔用作聚束腔，而四个随后的空腔用作能量腔。 在同轴部分中，波束和波在单独的通道中传播。 聚束器腔中的场通过同轴部分的内部和外部导体之间的波形通道耦合到四个随后的能量提取腔，而电子束沿着穿过同轴部分的内部导体的圆柱形通道漂移。 本发明的复合扩展相互作用结构提供了漂移通道（对波的截止），以允许电子的弹道聚束。 由于聚束腔与能量提取腔强耦合，所以第一间隙在电子上施加大的调制电压，足以在进入能量提取腔时产生紧密束缚的电子束。