20-Mw Pulsed Amplifying Klystron Operating in Positive Feedback Mode
The results of investigation of the regenerative oscillation amplification mode and the selfoscillation synchronization mode for the power pulsed amplifying positive-feedback klystron are reported. In Ref. there was described the autogenerator on the KUY-12 pulsed amplifying klystron, used for feeding the accelerating sections of the electron linac. To enhance the self-oscillation frequency stability, a high-quality resonator is introduced into the feedback circuit. This however results in noticeable increase in the oscillation growth time with respect to anode pulse. The investigation results of the KUY-12 operating either in the oscillation regeneration mode or in the self-oscillation frequency synchronization mode are presented.
Synchronization of pulsed oscillators
It is shown that driven pulsed oscillators behave in a manner very similar to driven CW oscillators. Simple criteria are given which allow one to decide easily from the frequency spectrum if the oscillators are locked or not.
Phase locking an IMPATT device in the pulsed mode
Phase locking of pulsed avalanche diode oscillators has been demonstrated. During the locking process, changes in phase between the locking signal and oscillator have been observed. These observations indicate that emission of identical pulses does not necessarily imply that the diode and locking frequencies are the same.