Results of a large orbit, high harmonic gyro-twt amplifier

Abstract

A 16.2 GHz large orbit Gyro-TWT amplifier has been operated at the eighth cyclotron harmonic with a small signal gain of 10 dB, an interaction bandwidth of 4.3%, and a saturated power transfer from the electron beam to the wave of 0.5 kW. Most importantly, the experimental results are in good agreement with the predictions of the analytic dispersion relationship for the interaction (1), permitting the design of scaled, high performance tubes.