Coupled cavities with mode conversion in gyrotrons

Abstract
The basic features of electrodynamic systems of gyrotrons formed by open coupled cavities with mode conversion (CCMC) are considered. Both the linear and the non-linear theories of gyrotrons with CCMC are given. Experiments on CCMC gyrotrons operating at the second and third cyclotron harmonics have been carried out at power levels up to 150kW. The experimental data are in good agreement with the theoretical results and demonstrate the high efficiency of the systems. The method of plane cross-sections which was used for the calculations is described in the Appendix.

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