5.5 GHz low voltage and high linearity RF CMOS mixer design

Senhg Feng Lu, Jyh-Chyurn Guo

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

    3 Scopus citations

    Abstract

    A CMOS mixer was design with a new circuit scheme to realize low voltage and high linearity simultaneously. A double balanced Gilbert cell was adopted as the basic topology and TSMC 0.18μm 1P6M CMOS process was employed for the on-chip RF circuit fabrication. The proposed new circuit scheme consists of LC-tanks as a capacitively coupled resonator for low voltage and multi-stage parallel RC networks for linearity improvement. Furthermore, multi-gated structure is applied at the RF input as a transconductance amplifier to enhance conversion gain and linearity. The new circuit scheme enables a successful low voltage operation at 1-V for 0.18|a.m technology. The measured circuit performance demonstrates superior linearity with IIP3 of 11 dBm and PldB of 2.2 dBm. The conversion gain can be maintained at 8.1 dB in a wide frequencies of 5GHz to 6.8GHz.

    Original languageEnglish
    Title of host publication2008 European Microwave Integrated Circuit Conference, EuMIC 2008
    Pages171-174
    Number of pages4
    DOIs
    StatePublished - 1 Dec 2008
    Event2008 European Microwave Integrated Circuit Conference, EuMIC 2008 - Amsterdam, Netherlands
    Duration: 27 Oct 200831 Oct 2008

    Publication series

    Name2008 European Microwave Integrated Circuit Conference, EuMIC 2008

    Conference

    Conference2008 European Microwave Integrated Circuit Conference, EuMIC 2008
    Country/TerritoryNetherlands
    CityAmsterdam
    Period27/10/0831/10/08

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