The investigation of electromagnetic oscillations excitation in the vircator with an external magnetic field is carried out. The conditions of producing a cyclotron wave parameter resonance with virtual cathode oscillation harmonics have been obtained where the radiation power resonance character depends on the magnetic field value.
Vladimir P. Grigoryev,
Tamara V. Koval,
"Parametric resonance in vircator with applied magnetic field", Proc. SPIE 2557, Intense Microwave Pulses III, (8 September 1995); doi: 10.1117/12.218589; https://doi.org/10.1117/12.218589