射频关键性设计教程Lecture02_Voltage and power transportaion

Lecture2RichardLi,20091Lecture2:VoltageandPowerTransportationRichardChi-HsiLi李缉熙Cellularphone:13917441363(PRC)Email:[e-mail]rcetoaLoadoGeneralExpressionofVoltageDeliveredfromaSourcetoaLoadoAdditionaljitterorDistortioninaDigitalCircuitBlock2.PowerDeliveredfromaSourcetoaLoadoGeneralExpressionofPowerDeliveredfromaSourcetoaLoadoPowerInstabilityoAdditionalPowerLossoAdditionalDistortionoAdditionalinterference3.ImpedanceConjugateMatchingoMaximizationofPowerTransportationoPowerTransportationwithoutPhaseShiftoImpedanceMatchingNetworkoNecessityofImpedanceMatching4.AdditionalEffectofImpedanceMatchingoVoltagePumpedupbyImpedanceMatchingoPowerMeasurementLecture2RichardLi,200921.VoltagedeliveredfromasourcetoaloadoGeneralexpressionofvoltagedeliveredfromsourcetoloadSSSjXRZLLLjXRZoSoSSZZZZoLoLLZZZZoSZZoLZZ0S0LtjSoSevv0]2[)()1(nnLSnTTtjLLSLSoTtRdddLeZZRvv1]12[)()1()1(nnLSTntjLLSLSoTtjLLSLSoTtRdddLeZZRveZZRvvFigure1VoltagedeliveredfromasourcetoaloadГSГLZoRSXSZSSourcePSvSXLZLLoadRLLRPLecture2RichardLi,20093tl(Delaytime=Td)SourceLoadFigure2Voltagesbouncingbackandfortharriveatloadwhent=Td.[Note:kv=RL/(ZS+ZL)]VoltagedeliveredfromSource:VoltagedeliveredfromSource:-12Td-11TdVoltagedeliveredfromSource:VoltagedeliveredfromSource:-10Td-9Td-8Td2Td1Td-1Td0-3Td-2Td-5Td-4Td-7Td-6TdVoltagedeliveredfromSource:Voltagedeliveredfromsource:VoltagedeliveredfromSource:VoltagearrivedatRL,)12(dTtjSovevkdLTtRv)10(dTtjSovevk)8(dTtjSovevk)6(dTtjSovevk)4(dTtjSovevk)2(dTtjSovevktjSovevkLecture2RichardLi,200940dT0)()1(nnLSLLSLtjSoTtRZZRevvdLLSnnLS110LSLLSLtjSoTtRZZRevvdL111)()1()1(nnLSLLSLtjSoLLSLtjSoTtRZZRevZZRevvdLNotethatIfthenLecture2RichardLi,20095,oAdditionalJitterorDistortioninaDigitalCircuitBlocksrvTtRstTtRTtRdLdLdLvvv,1,)1(1,LLSLtjSostTtRZZRevvdLLSLSLLSLtjSosdvTtRZZRevvdL11,LSLSstTtRsdvTtRvdLdLvvD11,,%LSLSvDjitter1%%LSLSstTtRsdvTtRfvvTjitterdLdL111,,secLecture2RichardLi,20096Table1Additionaldistortionandadditionaljitterinvoltagetransportationwhenf=3.86GHzГS,%ГL,%ΔD,%f,GHzT,nsJitter,%Jitter,ps000.003.860.2590.000500.003.860.2590.0001000.003.860.2590.0002000.003.860.2590.0005000.003.860.2590.000050.003.860.2590.000550.253.860.2590.250.61050.503.860.2590.501.32051.013.860.2591.012.65052.563.860.2592.566.60100.003.860.2590.0005100.503.860.2590.501.310101.013.860.2591.012.620102.043.860.2592.045.350105.263.860.2595.2613.60200.003.860.2590.0005201.013.860.2591.012.610202.043.860.2592.045.320204.173.860.2594.1710.8502011.13.860.25911.128.80500.003.860.2590.0005502.563.860.2592.566.6410505.263.860.2595.2613.6205011.13.860.25911.128.8505033.33.860.25933.386.4Lecture2RichardLi,20097%10L%10Spsjitter6.2sec%01.1%%jitterD,andthen,1)when%10L%10Spsjitter6.2sec%01.1%%jitterD,andthen,2)when%50L%50Spsjitter4.86sec%3.33%%jitterD,andthen,3)whenThevoltagereflectionbecomespernicious.Thevoltagereflectionseemsnottooharmful.Thevoltagereflectionishorrible!Lecture2RichardLi,200982.PowerdeliveredfromasourcetoaloadoGeneralexpressionofpowerdeliveredfromsourcetoloadSSSjXRZLLLjXRZoSoSSZZZZoLoLLZZZZoSZZoLZZtjSoSevv0S0L2SS2LL0]2[222)()1(nnLSnTTtjLLSLSoTtRdddLeZZRvPFigure3PowerdeliveredfromasourcetoaloadγSγLZoRSXSZSSourcePSvSXLZLLoadRLLRP1]2[222][222)()1()1(nnLSnTTtjLLSLSoTtjLLSLSoTtRddddLeZZRveZZRvPLecture2RichardLi,20099tl(Delaytime=Td)SourceLoadFigure4Powersbounceforthandbackandarriveatloadwhent=Td.(Note:kp=RL/|ZS+ZL|2)Powerdeliveredfromsource:Powerdeliveredfromsource:-12Td-11TdPowerdeliveredfromsource:Powerdeliveredfromsource:-10Td-9Td-8Td2Td1Td-1Td0-3Td-2Td-5Td-4Td-7Td-6TdPowerdeliveredfromsource:Powerdeliveredfromsource:Powerdeliveredfromsource:PowerarrivedatRL,dLTtRP)12(22dTtjSopevk)10(22dTtjSopevk)8(22dTtjSopevk)6(22dTtjSopevk)4(22dTtjSopevk)2(22dTtjSopevktjSopevk22Lecture2RichardLi,2009100]2[222)()1(nnLSnTTtjLLSLSoTtRdddLeZZRvP0dTLSLLSLSLSLLSLtjSoTtRZZRvZZRevPdL111122222oPowerInstability0]2[222)()1(nnLSnTTtjLLSLSoTtRdddLeZZRvPLSnnLS110NotethatIfthenLecture2RichardLi,200911oAdditionalPowerLoss2220,LSLtjSoTtRZZRevPLdL220,LSLSTtRZZRvPLdLLSLSTtRTtRTtRTtRLdLLdLdLdLPPPP110,0,LSLSTtRTtRLdLdLPP110,Lecture2RichardLi,200912Table2Additionalpowerlossduetotheunmatchedcasewhen=-30dBm.γS,%γL,%,dBm,dBm,dBm000.0000-30-infinite-30500.0000-30-infinite-301000.0000-30-infinite-302000.0000-30-infinite-305000.0000-30-infinite-30050.0500-30-43.01-30.22550.0476-30-43.22-30.211050.0452-30-43.45-30.202050.0404-30-43.94-30.185050.0256-30-45.91-30.110100.1000-30-40.00-30.465100.0955-30-40.20-30.4410100.0909-30-40.41-30.4120100.0816-30-40.88-30.3750100.0526-30-49.79-30.230200.2000-30-36.99-30.975200.1919-30-37.17-30.9310200.1837-30-37.36-30.8820200.1667-30-37.78-30.7950200.1111-30-