资源描述：
《a tuneable active inductor with high dynamic range for band-pass filter applications》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、IEEETRANSACTIONSONCIRCUITSANDSYSTEMSII:EXPRESSBRIEFS,VOL.58,NO.10,OCTOBER2011647ATuneableActiveInductorWithHighDynamicRangeforBand-PassFilterApplicationsGiorgioLeuzzi,VincenzoStornelli,andStefanoDelReAbstractAnapproachforthedesignofhigh-Qactiveinduc-tor(AI)withhighdynamicrangeispres
2、ented.TheproposedAIincludesapassivevariablephase-andamplitude-compensat-ingnetworkandahighlylinearinvertingamplifier,formingagyrator-Carchitecture.Theequivalentinductanceandresistancevaluesaretunableinawidefrequencyrange;outsidetheoperat-ingfrequencyband,theinductorequivalentresistan
3、ceincreases,improvingsignalrejectionforband-passfilterapplications.Asafeasibilitydemonstration,afirst-orderactiveband-passfilterusingthehigh-Qactiveinductancehasbeenfabricatedandtested.Thefilterhasacenterfrequencyof600MHzandameasurednoisefigureof11dBwitha5-dBm1-dBcompressionpointandan82-
4、dBFig.1.Blockschemeofatraditionalgyrator-basedAI.dynamicrange.sufferfromaverylowdynamicrangeduetothecombinationIndexTermsActivefilter,activeinductor(AI),gyrator,highofahighnoiselevelintroducedbytheAIandtherelativelydynamicrange.lowcompressionpowerleveloftheAIitself.ForalltheseI.INTRO
5、DUCTIONreasons,thereareonlyafewcommercialsolutionsavailableonthemarketbasedonAIs.UTUREportablecommunicationtransceiverswillneedInthisbrief,wepresentanewapproachforthedesignoftun-Flow-costhigh-performanceradio-frequency(RF)front-ablehighquality-factorstableAIssuitableforrelativelyhig
6、hendintegratedcircuits(ICs)withlowpowerconsumption,signalpowerhandlingapplicationsatRF.Thedesignmethodsmallarea,highoperatingfrequency(uptohundredsofispresentedinSectionII;inSectionIII,theimplementationofgigahertz),andhighreliability.Intherecentyears,mostRFagroundedtunableAIwithhigh
7、qualityfactorQisdescribed.buildingblockshavebeensuccessfullyimplementedinICInSectionIV,asimplefirst-orderband-passfilter,includingtheprocesseswithdifferenttechnologies.However,mostwirelessnovelAI,ispresented,whereasinSectionV,someremarkswillreceiversstilluseoff-chipfilters,typicallyimp
8、lementedwithbeprese
