A general program for steady state, stability, and FM noise analysis of microwave oscillators

Paillot, Jean‐Marie; Nallatamby, Jean-Christophe; Hessane, M.; Quéré, Raymond; Prigent, Michel; Rousset, Jean

doi:10.1109/mwsym.1990.99814

Cited by 64 publications

(46 citation statements)

References 5 publications

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“…The HB simulation of the RTWO enables a phase-noise analysis with the conversion-matrix approach [20], [25]. All the modeled noise sources are considered and the possible impact of near critical poles on the noise spectrum is predicted, which enables a realistic simulation.…”

Section: Phase-noise Analysismentioning

confidence: 99%

“…In the conversion-matrix approach [20], [25], the phase noise at a particular node and harmonic frequency k is obtained from the voltage phasors V(kωo+Ω) and V(-kωo+Ω). Thus, the analysis basically relies on the calculation of the linearized response of the node voltage to the noise sources.…”

Section: Introductionmentioning

confidence: 99%

“…Here a calculation of the phase-noise spectrum from the variance of the common-phase deviation is applied to RTWOs for the first time to our knowledge. The analysis is based on the identification of the parameters that determine this variance [26] from simulations performed with the conversion-matrix approach [20], [25].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Rotary Traveling-Wave Oscillator With Differential Nonlinear Transmission Lines

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Kenney

2014

IEEE Trans. Microwave Theory Techn.

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Section: Phase-noise Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rotary Traveling-Wave Oscillator With Differential Nonlinear Transmission Lines

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Kenney

2014

IEEE Trans. Microwave Theory Techn.

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“…In the large-signal regime, the PA or, in general, the active microwave circuit operates under nonlinear conditions with respect to the input source at the frequency f in and linearly with respect to the perturbation at the frequency f [15][16]. The analysis in [9] takes into account that the output load will have certain frequency dependence, neglected in previous works [1][2][3], and therefore, it will exhibit different values at the various frequencies k f in and kf in + f, where k is an integer [9].…”

Section: Introductionmentioning

confidence: 99%

“…In the large-signal regime, Hopf loci are calculated under variation of the relevant harmonic and sideband immittances. In [9] this was done using the conversion matrix approach [15][16] (small-signal/largesignal analysis) of commercial harmonic balance (HB) software. Here a detailed mathematical analysis is presented, enabling deep insight into the effect of mismatched terminations.…”

Section: Introductionmentioning

confidence: 99%

Stability Analysis of Power Amplifiers Under Output Mismatch Effects

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Ramírez

Sancho

2014

IEEE Trans. Microwave Theory Techn.

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1 Abstract -Novel criteria are presented for small-and large-signal stability analysis of microwave circuits under output mismatch effects. They are based on concepts from bifurcation theory, which enable the derivation of general equations for the stability boundaries that depend on the termination load. The boundary calculation does not require any optimization of the circuit parameters. Instead, it is based on the direct calculation of an admittance function obtained through circuit linearization about either the dc solution, in the small-signal stability analysis, or the periodic solution, in the large-signal one, with low computational cost. As will be demonstrated both with homotopy and bifurcation concepts, the Hopf locus obtained in this way delimits a stable region and a potentially unstable one. In a large-signal stability analysis, the sidebands that influence the stability properties are identified, which depend on the particular amplifier topology and its filtering effects. The stability boundaries are then calculated with the conversion matrix approach for all load impedance values at the relevant harmonic and sideband frequencies. For the derivation of absolute stability conditions, a new scattering type matrix is proposed describing the circuit response from the output reference plane with respect to the two sidebands about the input carrier. The new methodologies and formulations have been validated by independent simulations using pole-zero identification, and by measurements.

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