Proceedings ArticleDOI
Stability analysis of power amplifiers
Almudena Suarez,Franco Ramirez,Sanggeun Jeon,David B. Rutledge +3 more
- pp 203-206
TLDR
In this paper, the most common types of bifurcations, or qualitative changes of the solution stability when a parameter is varied continuously, are detected using pole-zero identification.Abstract:
The paper presents recent advances on stability-analysis methods, applied to power amplifiers, which often exhibit undesired behavior. Techniques will be provided to detect the most common types of bifurcations, or qualitative changes of the solution stability when a parameter is varied continuously. The bifurcation analysis techniques are combined with pole-zero identification in order to detect an undesired coexistence of stable solutions. Bifurcation loci provide instability contours versus practical design parameters and can be used to evaluate the impact of the instability on the overall amplifier performance and to stabilize the amplifier. Various examples of usual instability phenomena in power amplifiers will be presented.read more
Citations
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Journal ArticleDOI
Systematic Approach to the Stabilization of Multitransistor Circuits
N. Ayllon,J-M Collantes,A. Anakabe,Ibone Lizarraga,Geoffroy Soubercaze-Pun,Stéphane Forestier +5 more
TL;DR: Standard techniques from linear control theory (pole placement strategies) are used to automatically calculate the values of the stabilization elements ensuring circuit stability, and the methodology is applied to the stabilization of a two-stage Ku-band high-power amplifier for active antenna space applications.
Journal ArticleDOI
Stability Analysis and Design Criteria of Paralleled-Device Power Amplifiers Under Large-Signal Regime
TL;DR: In this article, a method for the stability analysis and stabilization criteria in multi-device paralleled power amplifiers (PA) under large-signal operating conditions is described. And the symmetry of the amplifier is exploited for a simple and effective study of odd-and even-order modes.
Dissertation
Experimental characterization and control of stability margins in microwave amplifiers.
TL;DR: In this article, the authors developed an experimental technique to characterize critical resonances departing from accurate measurement data that are coherent with the amplifier normal functioning, based on applying pole-zero identification technique to analyze the stability of microwave circuits in samll.
Proceedings ArticleDOI
An estimable stability method applied to power amplifier design
TL;DR: In this paper, a novel method to estimate the RC value is presented, which facilitates circuits design, and a single stage power amplifier is designed in CMOS process to verify the feasibility of this method.
Patent
Transformer-based power amplifier stabilization and reference distortion reduction
TL;DR: In this paper, the authors describe a radio frequency (RF) amplification device that includes an RF amplification circuit and a stabilizing transformer network to reduce parasitic coupling along the RF signal path.
References
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Journal ArticleDOI
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