Phase control of high power microwave oscillator

Frequency locking and phase locking is the key issue for the research of high power microwave combination. An initial phase inducing method for high power microwave oscillator is put forward and investigated. The phase locking can be achieved in the condition of a wider frequency detuning and a lower power input by using this new approach. The phase of GW level high power microwave is controlled with jitter less than 15 by a weak signal with an injection power ration less than -40 dB and a pulse width of about 10 ns. The method can be extended to other types of high power oscillator such as relativistic magnetron, transition-time oscillator, Cherenkov radiation oscillator and so on.