Efficient algorithm for steady-state stability analysis of large analog/RF circuits

Bolcato, P.; Nallatamby, Jean-Christophe; Rumolo, C.; Larcheveque, R.; Prigent, Michel; Obregon, J.

doi:10.1109/mwsym.2001.966928

Cited by 11 publications

(4 citation statements)

References 13 publications

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“…The numerator Det[M c (p)] captures all the Floquet exponents [24][25][26] (p zr = σ zr + jΩ zr ) of the whole circuit. The software STAN ® determines all the Floquet exponents (p zr = σ zr + jΩ zr ) of the LAPTV circuit:…”

Section: Principle Of Non-linear Local Stability Of the Amplifier Und...mentioning

confidence: 99%

Non-Linear Simulation by Harmonic Balance Techniques of Load Modulated Power Amplifier Driven by Random Modulated Signals

Neveux,

Hallepee,

Passerieux

et al. 2024

Electronics

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The simulation of the steady state and the non-linear stability of a load modulated power amplifier (LMPA) driven by a random modulated generator, fully performed in the frequency domain by harmonic balance (HB) techniques, is presented. The non-linear microwave circuit and the driving pseudo-random modulated (PRM) generator are integrally defined in the frequency domain. The simulation is implemented and performed using commercially available circuit simulation software. The demodulation of the output signal of the LMPA is implemented with optimally matched filters as software-defined demodulation. The simulated dynamic results of a Quasi-MMIC GaN Doherty power amplifier (DPA) are shown and compared to the measured results with a 16-QAM driving signal at 10 MS/s. The time-domain measurement allows the validation of the new simulation technique through the comparison of both the measured and the simulated error vector magnitude (EVM), the left and right adjacent channel power ratios (ACPRs) versus the average output power. This new simulation is then called pseudo-random modulated harmonic balance (PRM-HB) simulation. The full PRM-HB simulation of an LMPA driven by a random modulated signal, performed in the frequency domain at the design circuit level, results in an advanced simulation tool in the frame of the design of RF circuits and subsystems for telecommunication applications.

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Section: Principle Of Non-linear Local Stability Of the Amplifier Und...mentioning

confidence: 99%

Non-Linear Simulation by Harmonic Balance Techniques of Load Modulated Power Amplifier Driven by Random Modulated Signals

Neveux,

Hallepee,

Passerieux

et al. 2024

Electronics

View full text Add to dashboard Cite

show abstract

“…However, the Harmonic Balance method appears as the most widely used technique for RF, microwave and millimeter wave applications and it is well suited for tackling efficiently the analysis of multitransistor circuits with distributed elements, with reasonable computer simulation time. More details can be found in [17][18] Nonlinear stability of free-running oscillators [19] Two kinds of stability are to be studied in nonlinear oscillator circuits: the global and local stabilities.…”

Section: Oscillator Steady State Analysismentioning

confidence: 99%

“…The principle of the analysis is the same as for the linear circuit search of oscillation frequencies. But now the oscillation circuit is linearized around its nonlinear steady state [16,19], and possible spurious instabilities can be then detected. Generally in microwave oscillators instabilities occur at low frequencies (in the MHzs range).…”

Section: Oscillator Steady State Analysismentioning

confidence: 99%

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Semiconductor device and noise sources modeling: design methods and tools oriented to nonlinear H.F. oscillator CAD

et al. 2004

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Designing oscillator circuits at RF and microwaves requires specific knowledge in extremely varied fields of electronics.The following items will be the core of the presentation: -The physical processes leading to low-frequency noise in semi-conductor devices and the nonlinear behavior of the noise sources in large signal operating conditions will be detailed -Transistor modeling: A special emphasis will be put on the low-frequency noise modeling associated to the nonlinear transistor models. -Simulations tools: In order to simulate accurately the phase noise in free-running nonlinear oscillator circuits, the frequency domain approach based on the conversion matrices formalism which is related to the harmonic balance formalism will be detailed. -Design rules for low phase noise operation Theoretical conditions to be fulfilled by the circuit will be detailed on the basis of the Leeson analysis revisited. The need of new characterizations and extraction methods of noise sources in actual transistors, for a better prediction of noise performances of nonlinear circuits will be recalled.

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Systematic stability-analysis method for analog circuits

Vandersteen

Bronckers

Dobrovolný

et al. 2006

Proceedings of the Design Automation &Amp; Test in Europe Conference

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Efficient algorithm for steady-state stability analysis of large analog/RF circuits

Cited by 11 publications

References 13 publications

Non-Linear Simulation by Harmonic Balance Techniques of Load Modulated Power Amplifier Driven by Random Modulated Signals

Non-Linear Simulation by Harmonic Balance Techniques of Load Modulated Power Amplifier Driven by Random Modulated Signals

Semiconductor device and noise sources modeling: design methods and tools oriented to nonlinear H.F. oscillator CAD

Systematic stability-analysis method for analog circuits

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