Stability verification of microwave circuits through Floquet multiplier analysis

This work presents a procedure to verify the stability of periodic regimes of microwave circuits that are simulated with harmonic-balance algorithms. The technique is based on computing the Floquet multipliers associated to the system linearization around the periodic regime. The proposed procedure has been applied to a C-band GaAs prescaler. Stability analysis results provide an estimation of the circuit input sensitivity curve that is in good agreement with measurement results.