The Use of Simultaneous Tuning of Several Control Parameters to Stabilize the Radiation Power of a Subterahertz Gyrotron when Tuning the Generation Frequency

The results of theoretical and experimental studies aimed at ensuring long-term stability of the power of a subterahertz gyrotron when tuning the generation frequency are presented. Power stabilization is performed via the coordinated change in the technical parameters of the generation mode. Two pairs of such parameters are considered: the accelerating voltage and the temperature of the resonator coolant or the magnetic field and the temperature of the resonator coolant. As a result of experiments performed with a subterahertz gyrotron of a kilowatt power level, power stability was demonstrated at a level of several percent with a frequency tuning range of more than 100 MHz, which confirms the correctness of the proposed approaches.