Design and simulation of the interaction circuit for a W-band quasi-optical gyrotron oscillator

In this paper, the design and simulation of a high-frequency structure for a W-band quasi-optical gyrotron oscillator, which operates at the TE
₆₂
mode, has been presented. According to the self-consistent nonlinear theory, the parameters of the high-frequency resonator has been designed and optimized. The effects of electron beam voltage, current, velocity spread, magnetic field and electron beam guiding center on the output power and efficiency have been analyzed. The maximum output power and efficiency of the designed gyrotron oscillator is about 39.7kW and 44.1%, respectively.