Oscillation Conditions of the Vircator Klystron with External Delayed Feedback: A Computer Simulation

A new version of the virtual cathode oscillator, vircator klystron, is suggested and studied numerically. It essentially includes adjustable external feedback. The non-steady-state nonlinear dynamics of the oscillator is analyzed in relation to the beam current and feedback parameters. Physical processes in the electron beam during transitions between oscillation conditions are considered.