Study on Mutual Coupling of Two Magnetrons for Multi-Source Heating System

Industrial equipment mostly uses multi-source heating, but multi-source heating system has the problem of mutual coupling, which affects the efficiency. The mutual coupling of two magnetrons for multi-source heating system is studied in this paper. With different lengths of water load, a magnetron with a stable output spectrum is used to influence a magnetron of which the performance of the output spectrum and phase noise is poor. The experimental results show that the output frequency of the magnetron with unstable output spectrum can be trapped to the center frequency of the other one. The phase noise of the output signal is greatly reduced and injected locking is achieved.