Abstract :
Traveling wave tubes for satelite communication are required to operate with high efficiency, yet with low phase distortion in order to obtain a large channel capacity in the satellite repeater. A general efficiency and phase distortion analysis for traveling wave tubes was therefore carried out, using a large signal computer program. The phase shift, the AM/PM conversion factor and the efficiency with and without collector depression at saturation and at reduced drive levels have been evaluated for a large range of tube parameters.
