Parametric Subharmonic Oscillators#x2014;Static Behaviour

摘要

The paper presents the experimental results of a parametric subharmonic oscillator usingV20varicap as non-linear reactance and having output frequency one-half of the pump frequency. The resonance curves for a low frequency, taking pump power and bias voltage as variable parameters, have been given. It is found that there exists a threshold amplitude for generation of oscillations and a sort of hysteresis with respect to the pump frequency and amplitude. The curves showing the variation of threshold amplitude with bias voltage and subharmonic output with pump amplitude and frequency have also been given.