Systematic stability analysis of a Class-B subharmonic mixer

A systematic stability analysis for predicting and correcting nonlinear oscillations of a Class-B subharmonic mixer is presented. First, a large-signal stability analysis is performed to predict the presence of parametric oscillations in the Class-B subharmonic mixer. Secondly, in order to study the...

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Bibliographic Details
Published inAsia-Pacific Microwave Conference 2011 pp. 235 - 238
Main Authors Hu Zijie, Mouthaan, K.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2011
Subjects
Admittance
Circuit analysis
Class-B subharmonic mixer
Equivalent circuits
Integrated circuit modeling
large-signal stability analysis
Mixers
odd-mode parametric oscillation
Oscillators
Stability analysis
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Summary:A systematic stability analysis for predicting and correcting nonlinear oscillations of a Class-B subharmonic mixer is presented. First, a large-signal stability analysis is performed to predict the presence of parametric oscillations in the Class-B subharmonic mixer. Secondly, in order to study the origins of the instability, a circuit analysis is performed incorporating the critical large-signal model parameters. An experimental prototype is designed and measured. Parametric oscillations are predicted and measured around 4.2 GHz. Based on the in-depth understanding of the origins of the instability, a practical stabilization solution is proposed to successfully eliminate the oscillations. Simulation and experimental results are in a good agreement.
ISBN:9781457720345
1457720345
ISSN:2165-4727
2165-4743