A 0.18μm CMOS GAIN-SWITCHED LNA AND MIXER WITH LARGE DYNAMIC RANGE-中国期刊网

摘要 A2.4GHz0.18μmCMOSgain-switchedsingle-endLowNoiseAmplifier(LNA)andapassivemixerwithnoexternalbalunfornear-zero-IF(IntermediateFrequency)/RF(RadioFrequency)applicationsaredescribed.TheLNA,fabricatedinthe0.18μm1P6MCMOStechnology,adoptsagain-switchedtechniquetoincreasethelinearityandenlargethedynamicrange.ThemixerisanIQ-basedpassivetopology.MeasurementsoftheCMOSchipareperformedontheFR-4PCBandtheinputismatchedto50Ω.CombiningLNAandmixer,thefront-endmeasuredperformancesinhighgainstateare:-15dBofS11,18.5dBofvoltagegain,4.6dBofnoisefigure,-15dBmofⅡP3,-85dBmto-10dBmdynamicrange.Thefullcircuitdrains6mAfroma1.8Vsupply.

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A 0.18μm CMOS GAIN-SWITCHED LNA AND MIXER WITH LARGE DYNAMIC RANGE

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A 0.18μm CMOS GAIN-SWITCHED LNA AND MIXER WITH LARGE DYNAMIC RANGE

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