Key Issues in RF and RFIC Circuit Design

《Key Issues in RF and RFIC Circuit Design》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、Chapter1ImpedancematchingContentsChapter1ImportanceofImpedanceMatching11.1DifferencebetweenRFandDigitalCircuitDesign11.1.1Case#1:DigitalCircuitsatLowDataRate21.1.2Case#2:DigitalCircuitsatHighDataRate51.2SignificanceofImpedanceMatching71.2.1PowerTransport

2、ationfromaSourcetoaLoad71.2.2MaximizingofPowerTransportationwithoutPhaseShift81.2.3ConjugateImpedanceMatchingandVoltageReflectionCoefficient101.2.4ImpedanceMatchingNetwork111.3ProblemsduetoUnmatchedStatusofImpedance141.3.1GeneralExpressionofPowerTranspor

3、tation141.3.2PowerInstabilityandAdditionalPowerLoss171.3.3AdditionalDistortionandQuasi-Noise191.3.4PowerMeasurement221.3.5PowerTransportationandVoltageTransportation241.3.6BurningofaTransistor28References290Chapter1ImpedancematchingChapter1ImportanceofIm

4、pedanceMatching1.1DifferencebetweenRFandDigitalCircuitDesignItiswellknownthattheunitofdigitaldatarateisbps(bitspersecond),Mbps(Megabitspersecond),orGbps(Gigabitspersecond)whiletheunitoffrequencyisHz(Hertz),MHz(MegaHertz)orGHz(GigaHertz).Theyarecomparable

5、becausetheyhavethesamedimension,1/second.InrespecttoRF(radiofrequency),adigitalcircuitcanbedistinguishedintotwocases:lowandhighdigitaldatarate.AdigitalcircuitwithalowdataratecanbedefinedasR<

6、,andR>f,(1.2)RFRFwherethedigitaldatarateisdenotedbyRandthefrequencyoftheRFsignalisdenotedbyfRF.TheRFrangehasnotbeenwell-regulatedandconfirmedworldwide.Approximately,theyarebetweenMHztoGHzandarechangedfromtimetotime.IfthelowlimitoffRFisassumedtobef≈10MHz,

7、(1.3)RFthen,thecondition(1.1)torepresentthelowdataratecasescanbere-definedasR<<10Mbps,(1.4)whichimpliesanapproximationthatadigitalwaveformwith10Mbpsofdataratecanbemainlycharacterizedbyitsmainspectralcomponentof10MHz.And,thecondition(1.2)torepresentthehig

8、hdataratecasescanbeexpressedbyR≈10Mbps,andR>10Mbps.(1.5)IntheRFcircuitdesign,specialrequirements,suchasimpedancematching,RFgroundingandsoon,mustbealwayscompliedwith.Inthedigitalcircuitdesign,ontheotherhand,thedesignrulesar