A Study of Harmonic Locking Between Oscillators in a Dual Frequency Magnetron

The Harmonic Recirculating Planar Magnetron (HRPM) is a crossed field microwave source capable of oscillating at high power, potentially at four different frequencies from L-Band to S-Band. In a previous experiment, the two oscillators of the Multi- Frequency Recirculating Planar Magnetron (MFRPM) exhibited harmonic frequency locking, where one oscillator at S-Band locked to the second harmonic of the other oscillator's L-Band resonant frequency. The HRPM has been designed to experimentally test the harmonic frequency locking concept.