OREGON STATE UNIVERSITY

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A new compact model for monolithic transformers in silicon-based RFICs

TitleA new compact model for monolithic transformers in silicon-based RFICs
Publication TypeJournal Article
Year of Publication2005
AuthorsMayevskiy, Y., A. Watson, P. Francis, K. Hwang, and A. Weisshaar
JournalIEEE Microwave and Wireless Components Letters
Volume15
Issue6
Pagination419 - 421
Date Published06/2005
ISSN1531-1309
Keywordseddy currents, equivalent-circuit model, monolithic transformers, mutual resistance, radio frequency integrated circuit (RFIC), silicon substrate
Abstract

A new compact model for monolithic transformers on silicon substrates is presented. The new lumped-element equivalent circuit model employs transformer loops to represent skin and proximity effects including eddy current loss in the windings of the transformer. In addition to the self-resistances and self-inductances of the windings, the effects of the frequency-dependent mutual resistance and mutual inductance are included in the model. The new compact model has been applied to a stacked transformer on a 10-Ω·cm CMOS substrate. The extracted circuit model shows very good agreement with data obtained by full-wave electromagnetic simulation and measurement over the frequency range of 0.1-10GHz.

DOI10.1109/LMWC.2005.850558
Short TitleIEEE Microw. Wireless Compon. Lett.