An optimized multiphase oscillator with harmonic balance analysis for oscillation frequency and amplitude prediction

Antonie C. Alberts, Saurabh Sinha

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Predicting the oscillation frequency and amplitude of oscillators is a non-trivial exercise. This work presents a modified multiphase Colpitts oscillator with improved phase noise performance and presents a different approach to oscillator analysis. Frequency pulling is not accurately predicted and cross-coupling of currents in multiphase oscillators makes frequency and amplitude difficult to predict accurately. A single and multiphase oscillator analysis using the harmonic balance method is presented. A new multiphase oscillator structure based on the Colpitts' oscillator is investigated. The numerical and analytical solutions are able to accurately predict the oscillation frequency to within 2.5 % of the SPICE solution. The analytical solution can be used to predict the first harmonic and combined with the numerical simulations will allow for the harmonic amplitudes to be tailored to specific applications.

Original languageEnglish
Title of host publicationProceedings of 23rd International Conference, RADIOELEKTRONIKA 2013
Pages55-60
Number of pages6
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event23rd International Conference, RADIOELEKTRONIKA 2013 - Pardubice, Czech Republic
Duration: 16 Apr 201317 Apr 2013

Publication series

NameProceedings of 23rd International Conference, RADIOELEKTRONIKA 2013

Conference

Conference23rd International Conference, RADIOELEKTRONIKA 2013
Country/TerritoryCzech Republic
CityPardubice
Period16/04/1317/04/13

Keywords

  • Harmonic analysis
  • Oscillators
  • Phase noise
  • SPICE

ASJC Scopus subject areas

  • Computer Networks and Communications

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