Theoretical and Numerical Investigation of a Four-cavity TE021-Mode Gyroklystron

Abstract

Using self-consistent field theory and PIC simulation, the interaction of electron flow with HF fields in a four-cavity Gyroklystron with TE021-mode has been analyzed. Self-consistent field theory includes both linear theory and nonlinear theory. Optimized parameters and their corresponding efficiency, gain and bandwidth of the optimized Gyroklystron have been found. Numerical investigation using PIC simulation is also given. Parameters of the cavities which are operating in TE021 mode are optimized to minimize TE011 mode and to suppress parasitic self-oscillations. The results of theory are in good qualitative agreement with PIC simulation.