Harmonic-balance techniques for the in-depth stability analysis of power amplifiers

Almudena Suárez, Sanggeun Jeon, David Rutledge

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Power amplifiers often exhibit undesired behavior from certain input power value which cannot be predicted with a small-signal stability analysis. Among the commonly observed undesired phenomena are spurious oscillations, frequency divisions, hysteresis or chaos. In this contribution, simulation tools are presented, enabling anin-depth study of the origin and characteristics of these phenomena. The developed global stability analysis and stabilization tools have enabled an efficient suppression of the undesired behavior in a switching-mode power amplifier, with minimum degradation of the amplifier performance, in terms of drain efficiency and output power.

Original languageEnglish
Title of host publicationGerman Microwave Conference, GEMIC 2008
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9783800730865
Publication statusPublished - 2008
Externally publishedYes
Event2016 German Microwave Conference, GEMIC 2008 - Hamburg-Harburg, Germany
Duration: 2008 Mar 102008 Mar 12


Other2016 German Microwave Conference, GEMIC 2008


  • Bifurcation
  • Oscillation
  • Power amplifier
  • Stability

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Instrumentation


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