Beyond the smith chart: A universal graphical tool for impedance matching using transformers

Eli Bloch, Eran Socher

Research output: Contribution to journalArticlepeer-review

Abstract

The topic of impedance transformation and matching is one of the well-established and essential aspects of microwave engineering. A few decades ago, when discrete radio-frequency (RF) design was dominant, impedance matching was mainly performed using transmission-lines techniques that were practical due to the relatively large design size. As microwave design became possible using integrated on-chip components, area constraints made L-C section matching (using lumped passive elements) more practical than transmission line matching. Both techniques are conveniently visualized and accomplished using the well-known graphical tool, the Smith chart.

Original languageEnglish
Article number6954491
Pages (from-to)100-109
Number of pages10
JournalIEEE Microwave Magazine
Volume15
Issue number7
DOIs
StatePublished - 1 Nov 2014

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