Active 2nd-order intermodulation calibration for direct-conversion receivers

Minghui Chen*, Yue Wu, Mau-Chung Chang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

19 Scopus citations

Abstract

A temperature-compensated active IM2 calibration circuit for direct-conversion receivers is fabricated with a mixer in 0.25μm CMOS. A squaring circuit senses the RF signal and generates a calibration current to cancel mixer IM2 distortion. The loading effect and noise contribution are minimized by gain boosting. IIP2 is boosted >20dB to >80dBm in the IMT band. The calibration circuit draws 1.5mA.

Original languageEnglish
Title of host publication2006 IEEE International Solid-State Circuits Conference, ISSCC - Digest of Technical Papers
DOIs
StatePublished - 1 Dec 2006
Event2006 IEEE International Solid-State Circuits Conference, ISSCC - San Francisco, CA, United States
Duration: 6 Feb 20069 Feb 2006

Publication series

NameDigest of Technical Papers - IEEE International Solid-State Circuits Conference
ISSN (Print)0193-6530

Conference

Conference2006 IEEE International Solid-State Circuits Conference, ISSCC
CountryUnited States
CitySan Francisco, CA
Period6/02/069/02/06

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