RF Power Amplifier

687 Pages·2014·6.49 MB·English

by  Marian K. Kazimierczuk

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Trimsize:170mmx244mm Kazimierczuk ffirs.tex V2-09/27/2014 1:36P.M. Pagei
RF Power Amplifiers
Trimsize:170mmx244mm Kazimierczuk ffirs.tex V2-09/27/2014 1:36P.M. Pageii
Trimsize:170mmx244mm Kazimierczuk ffirs.tex V2-09/27/2014 1:36P.M. Pageiii
RF Power Amplifiers
Second Edition
MARIAN K. KAZIMIERCZUK
Wright State University,
Dayton, Ohio, USA
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Thiseditionfirstpublished2015
©2015JohnWiley&SonsLtd
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LibraryofCongressCataloging-in-PublicationData
Kazimierczuk,Marian.
RFpoweramplifiers/MarianK.Kazimierczuk.–Secondedition.
pagescm
Includesbibliographicalreferencesandindex.
ISBN978-1-118-84430-4
1. Poweramplifiers. 2. Amplifiers,Radiofrequency. 3. Electricresonators. I. Title.
TK7871.58.P6K392015
621.3841′3–dc23
2014022274
AcataloguerecordforthisbookisavailablefromtheBritishLibrary.
ISBN9781118844304
Setin9.75/11.75ptTimesLTStdbyLaserwordsPrivateLimited,Chennai,India
1 2015
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ToMyMother
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Contents
Preface xvii
About the Author xix
List of Symbols xxi
List of Acronyms xxv
1 Introduction 1
1.1 RadioTransmitters 1
1.2 BatteriesforPortableElectronics 2
1.3 BlockDiagramofRFPowerAmplifiers 2
1.4 ClassesofOperationofRFPowerAmplifiers 5
1.5 WaveformsofRFPowerAmplifiers 7
1.6 ParametersofRFPowerAmplifiers 7
1.6.1 DrainEfficiencyofRFPowerAmplifiers 7
1.6.2 StatisticalCharacterizationofTransmitterAverageEfficiency 9
1.6.3 Gate-DrivePower 10
1.6.4 Power-AddedEfficiency 11
1.6.5 Output-PowerCapability 12
1.7 TransmitterNoise 12
1.8 Conditionsfor100%EfficiencyofPowerAmplifiers 13
1.9 ConditionsforNonzeroOutputPowerat100%EfficiencyofPower
Amplifiers 16
1.10 OutputPowerofClassEZVSAmplifiers 18
1.11 ClassEZCSAmplifiers 21
1.12 Antennas 23
1.13 PropagationofElectromagneticWaves 25
1.14 FrequencySpectrum 26
1.15 Duplexing 28
1.16 Multiple-AccessTechniques 29
1.17 NonlinearDistortioninTransmitters 29
1.18 HarmonicsofCarrierFrequency 30
1.19 IntermodulationDistortion 33
1.20 AM/AMCompressionandAM/PMConversion 38
1.21 DynamicRangeofPowerAmplifiers 38
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viii CONTENTS
1.22 AnalogModulation 39
1.22.1 AmplitudeModulation 41
1.22.2 PhaseModulation 48
1.22.3 FrequencyModulation 49
1.23 DigitalModulation 54
1.23.1 Amplitude-ShiftKeying 54
1.23.2 Phase-ShiftKeying 55
1.23.3 Frequency-ShiftKeying 55
1.24 Radars 57
1.25 Radio-FrequencyIdentification 58
1.26 Summary 59
1.27 ReviewQuestions 61
1.28 Problems 62
References 63
2 Class A RF Power Amplifier 65
2.1 Introduction 65
2.2 PowerMOSFETCharacteristics 65
2.2.1 SquareLawforMOSFETDrainCurrent 65
2.2.2 Channel-LengthModulation 66
2.2.3 Low-andMid-FrequencySmall-SignalModelofMOSFETs 67
2.2.4 High-FrequencySmall-SignalModeloftheMOSFET 68
2.2.5 Unity-GainFrequency 68
2.3 Short-ChannelEffects 70
2.3.1 ElectricFieldEffectonChargeCarriersMobility 70
2.3.2 OhmicRegion 71
2.3.3 Pinch-OffRegion 72
2.3.4 WideBandGapSemiconductorDevices 76
2.4 CircuitofClassARFPowerAmplifier 78
2.5 WaveformsinClassARFAmplifier 80
2.5.1 Assumptions 80
2.5.2 CurrentandVoltageWaveforms 81
2.5.3 OutputPowerWaveforms 83
2.5.4 TransistorPowerLossWaveforms 84
2.6 EnergyParametersofClassARFPowerAmplifier 87
2.6.1 DrainEfficiencyofClassARFPowerAmplifier 87
2.6.2 StatisticalCharacterizationofClassARFPowerAmplifier 91
2.6.3 DrainEfficiencyatNonzeroMinimumDrain-to-Source
Voltage 95
2.6.4 Output-PowerCapabilityofClassARFPowerAmplifier 95
2.6.5 GateDrivePower 96
2.7 Parallel-ResonantCircuit 97
2.7.1 QualityFactorofParallel-ResonantCircuit 97
2.7.2 ImpedanceofParallel-ResonantCircuit 98
2.7.3 BandwidthofParallel-ResonantCircuit 98
2.8 PowerLossesandEfficiencyofParallel-ResonantCircuit 100
2.9 ClassARFPowerAmplifierwithCurrentMirror 103
2.10 ImpedanceMatchingCircuits 107
2.11 ClassARFLinearAmplifier 111
2.11.1 AmplifierforVariable-EnvelopeSignals 111