Particle simulation of dual-frequency relativistic backward wave oscillator with resonant reflector

A relativistic backward wave oscillator (RBWO) with resonant reflector has been designed to produce dual-frequency microwaves. The 2.5 dimensional fully electromagnetic simulation software was adopted to simulate the cylindrical RBWO. Dual-frequency microwave output of 9.53 and 10.09 GHz is obtained for the beam voltage of 433 kV and guiding magnetic field of 2.2 T. The average output power is 340 MW and the average power efficiency is 24.1%.