Methods for finding globally maximum-efficiency impedance matching networks with lossy passives

Chandra Kanth R. Chappidi, Kaushik Sengupta

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

9 Scopus citations

Abstract

Impedance transformation using on-chip passive elements is ubiquitously used in RF and mm-Wave circuits and systems for optimal power matching, interstage and noise matching, and high-efficiency power delivery to the antenna by power amplifiers. While conjugate matching gives optimal efficiency for lossless passives, the results are markedly different when constituent passives have finite quality factors. Given the load and source impedances, there may be infinite ways to achieve the transformation, albeit each incurring different loss. In this paper, we investigate the methods to deduce the global maximum efficiency of power transfer between two arbitrary impedances with lossy passives. This paper also proposes methods to combine this with nonlinear load-pull simulations for optimal efficiency combiner and matching network for integrated PAs. To the best of the authors' knowledge, this is the first comprehensive analysis of globally optimal impedance transformation networks between arbitrary impedances with lossy passives.

Original languageEnglish (US)
Title of host publication2015 IEEE Custom Integrated Circuits Conference, CICC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479986828
DOIs
StatePublished - Nov 25 2015
EventIEEE Custom Integrated Circuits Conference, CICC 2015 - San Jose, United States
Duration: Sep 28 2015Sep 30 2015

Publication series

NameProceedings of the Custom Integrated Circuits Conference
Volume2015-November
ISSN (Print)0886-5930

Other

OtherIEEE Custom Integrated Circuits Conference, CICC 2015
CountryUnited States
CitySan Jose
Period9/28/159/30/15

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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    Chappidi, C. K. R., & Sengupta, K. (2015). Methods for finding globally maximum-efficiency impedance matching networks with lossy passives. In 2015 IEEE Custom Integrated Circuits Conference, CICC 2015 [7338434] (Proceedings of the Custom Integrated Circuits Conference; Vol. 2015-November). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/CICC.2015.7338434