Phase Locked High Power X-band Microwave Sources

The numerical study of a low confining-field (~0.3T) X-band Backward Wave Oscillator (BWO), suitable for implementation as the microwave source(s) in a phase-synchronous array, is presented. Analytical theory and CST Particle Studio simulations have been used to design a ~9.6GHz BWO, generating 120MW, 1ns, pulses when driven by a 4ns, 210kV, 1.5kA Radan 303B modulator.