Linear-beam microwave tube with output cavity beyond the collector

摘要

A linear-beam microwave tube comprises at least one electron beam directed along an axis crossing a cavity known as an output cavity in which it interacts with a microwave, this cavity having a terminal wall that separates it from a collector, the electron beam penetrating the collector by at least one aperture in the terminal wall. The terminal wall furthermore comprises at least one coupling unit to couple the output cavity with the collector, the microwave having to circulate in the collector before being extracted therefrom. Applications: klystrons and travelling-wave tubes that are easy to mount and inexpensive.