An experimental study of a pulsed relativistic electron-beam O-type oscillator driving two O-type amplifiers and operating at levels of a few hundred megawatts in the X-band is reported. Two configurations are examined, in one of which a backward-wave oscillator (BWO) drives two independent traveling-wave amplifiers (TWAs), and in the other of which the same electron beam passes through both the BWO and the TWA structures. Results on power output, pulse distortion, gain, and output matching are presented. The pulse-shortening syndrome and its apparent absence in TWA are briefly discussed.
Charles B. Wharton,
Jennifer M. Butler,
"Relativistic O-type oscillator-amplifier systems", Proc. SPIE 1226, Intense Microwave and Particle Beams, (1 April 1990); doi: 10.1117/12.18541; https://doi.org/10.1117/12.18541