- 易迪拓培训,专注于微波、射频、天线设计工程师的培养
Coupled oscillator array simulation using ADS
Could anyone please tell me whether it is possible to simulate a coupled oscillator array in ADS using Harmonic Balance or Transient analyses?
As far as I know it is impossible to do such a purpose using Harmonic Balance analysis because in HB the initial conditions can not be set sufficiently for finding a convergence solution with multiple oscillators. Is that correct?
Thanks in advance.
Regards,
HB analysis can not treat circuit which include more than two autonomous oscillations.
So use Transient Analysis.
Thanks so much for your response. I agree that we can use Transient analysis to investigate the operation of the oscillator array such as output power or oscillation frequency, etc.. However one of the most important characteristics of using the oscillator array is the reduced phase noise which cannot be evaluated using Transient analysis but HB analysis.
I would appreciate if you could give me your recommendations on how to simulate the phase noise of the coupled oscillator array. I am not so sure whether I can use the Circuit Envelop analysis which is the combination of Transient and HB in this case or not.
If the oscillator array work like as injection locked oscillator, all frequencies of array should be same in steady state.
If so, autonomous HB analysis can find solution.
In envelope simulation, assume following.
one master oscillation frequency as autonomous frequency
and other slave frequencies are small perturbation from master.
Theoretically envelope simulator should treat your circuits.
However I can not assure convergence and reliabilty.
Envelop analysis of ADSsim is no more than time variable HB analysis where time step control is fixed time step control.
I would sincerely appreciate your time for useful discussions and advice. I will try to run the simulation again based on your recommendations. Hope it works!
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