In this work by the computer simulation the transient processes and the character of steady-state oscillation regimes were investigated in a gyro-BWO with an uniform waveguide and a non-profieled magnetic field. The self-consistent model is based on the assumption of the slow time and space scale variation of the e.m. wave amplitude.
A. Y. Dmitriev,
"Non-steady-state processes in a gyro-BWO", Proc. SPIE 1576, 16th International Conference on Infrared and Millimeter Waves, 15765X (1 October 1991); doi: 10.1117/12.2297926; https://doi.org/10.1117/12.2297926