A Large-Signal Network Analyzer: Why Is It Needed?

Wendy Van Moer, Yves Rolain, Mike Golio (Editor)

Research output: Contribution to journalArticle

71 Citations (Scopus)


During the last decades, linear system theory has ruled engineering applications. Almost all engineers are raised in the linear framework and a lot of techniques are available to measure and to model linear devices. Almost everything that is not linear or cannot be linearised is treated as a perturbation that has to be eliminated. However, the constant pressure of low-power and high-bandwidth applications pushes an increasing number of devices beyond the edges of their linear range into a nonlinear operation region. Think of example of an exigent customer who wants an optimal working, cheap-priced mobile phone with a large autonomy. Most of these demands can be granted by increasing the efficiency of the transistors. The problem, however, is that increasing the efficiency of a transistor means pushing its operating point closer to the compression region. Since compression is synonymous for nonlinearity, acquiring insight in the nonlinear behaviour of a component becomes essential. By better integrating oneself in the nonlinear world, it becomes hence easier to model the nonlinear behaviour of telecommunication building blocks, i.e. the RFIC's.
Original languageEnglish
Pages (from-to)46-62
Number of pages16
JournalIEEE Microwave Magazine
Issue numberIEEE Microwave Magazine
Publication statusPublished - 14 Nov 2006

Bibliographical note

Mike Golio


  • Nonlinear network Analyzer

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