Study on a Frequency-Stabilized Power-Adjustable Magnetron

A frequency-stabilized power-adjustable magnetron (FSPAM) has been theoretically analyzed by an equivalent model. It is found that numerical results were roughly conformed to the experimental performances of a practical injection-locked 20 kW magnetron. The frequency was shifting during power adjustment due to frequency pushing characteristic, and the locking condition will fluctuate instantaneously. This is the first time to introduce the metabolic data of frequency and power variation into the equivalent model to facilitate the prediction of its varied status. The proposed state equation were computed for the case of the power-variable magnetron with constant injected signal.