Low voltage 2-mW 6-10.6-GHz ultra-wideband CMOS mixer with active balun

Ta Tao Hsu*, Chien-Nan Kuo

*Corresponding author for this work

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

5 Scopus citations

Abstract

A low-voltage and low-power CMOS mixer with an active balun is designed for frequency down-conversion in ultra-wideband applications. The mixer contains CMOS amplifiers as the LO buffer and the modulating stage in a folded configuration to allow low-voltage operation. The RF input signal comes from a new low-power active balun that uses a pair of common-source NMOS and common-gate PMOS transistors. This balun gives an impedance transformation ratio of 1:2, and provides a differential signal within 0.5dB and 1.5° of gain and phase imbalance, respectively, from 6 to 10.6-GHz. The mixer and the active balun are designed in 0.18μ m CMOS technology to operate at 1.2-V supply voltage. The circuit performance of the mixer with the active balun achieves flat conversion gain of 17 dB within 1 dB variation, the maximum IIP3 of 0 dBm, and the minimum noise figure of 13 dB. The total circuit only consumes power of 2 mW. As compared to typical designs, it saves about 85% and 95% of power consumption in the balun and the mixer circuits, respectively.

Original languageEnglish
Title of host publicationISCAS 2006
Subtitle of host publication2006 IEEE International Symposium on Circuits and Systems, Proceedings
Pages5704-5707
Number of pages4
DOIs
StatePublished - 1 Dec 2006
EventISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems - Kos, Greece
Duration: 21 May 200624 May 2006

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Conference

ConferenceISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems
CountryGreece
CityKos
Period21/05/0624/05/06

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    Hsu, T. T., & Kuo, C-N. (2006). Low voltage 2-mW 6-10.6-GHz ultra-wideband CMOS mixer with active balun. In ISCAS 2006: 2006 IEEE International Symposium on Circuits and Systems, Proceedings (pp. 5704-5707). [1693930] (Proceedings - IEEE International Symposium on Circuits and Systems). https://doi.org/10.1109/ISCAS.2006.1693930