【文件名】:1022@52RD_RF Power Amplifiers for Wireless Communications_Second Edition.rar
【格 式】:rar
【大 小】:3230K
【简 介】:Steve.C.Cripps
【目 录】:
Contents
Preface to the Second Edition xi
CHAPTER 1
Introduction 1
1.1 Introduction 1
1.2 Linear RF Amplifier Theory 2
1.3 Weakly Nonlinear Effects: Power and Volterra Series 5
1.4 Strongly Nonlinear Effects 6
1.5 Nonlinear Device Models for CAD 9
1.6 Conjugate Match 11
1.7 RF Power Device Technology 14
References 15
CHAPTER 2
Linear Power Amplifier Design 17
2.1 Class A Amplifiers and Linear Amplifiers 17
2.2 Gain Match and Power Match 19
2.3 Introduction to Load-Pull Measurements 20
2.4 Loadline Theory 21
2.5 Package Effects and Refinements to Load-Pull Theory 27
2.6 Drawing the Load-Pull Contours on CAD Programs 31
2.7 Class A Design Example 31
2.8 Conclusions 36
References 37
CHAPTER 3
Conventional High Efficiency Amplifier Modes 39
3.1 Introduction 39
3.2 Reduced Conduction Angle—Waveform Analysis 40
3.3 Output Termination 43
3.4 Reduced Conduction Angle Mode Analysis—FET Model 47
Case 1: Class A 48
Case 2: Class AB 49
Case 3: Class B 51
Case 4: Class C 53
3.5 Reduced Conduction Angle Mode Analysis—BJT Model 55
3.6 Effect of I-V “Knee” 59
3.7 Input Drive Requirements 61
3.8 Conclusions 65
References 65
CHAPTER 4
Class AB PAs at GHz Frequencies 67
4.1 Introduction 67
4.2 Class AB Using a Capacitive Harmonic Termination—The Class J PA 68
4.2.1 Theory 68
4.2.2 Practicalities 73
4.3 Nonlinear Device Characteristics 77
4.4 Nonlinear Capacitance Effects in RF Power Devices 81
4.4.1 Introduction 81
4.4.2 Nonlinear Capacitors—Characterization and Analysis 81
4.4.3 Input Varactor Effects on Class AB PAs 84
4.5 Conclusions 89
References 89
CHAPTER 5
Practical Design of Linear RF Power Amplifiers 91
5.1 Low-Pass Matching Networks 92
5.2 Transmission Line Matching 100
5.3 Shorting the Harmonics 102
5.4 A Generic MESFET 105
5.5 A 2W Class B Design for 850 MHz 107
5.6 The Pi Section Power Matching Network 112
5.7 Pi Section Analysis for PA Design 115
5.8 Class J Design Example 122
5.9 HBT Design Example 124
5.10 Conclusions 129
References 131
CHAPTER 6
Overdriven PAs and the Class F Mode 133
6.1 Introduction 133
6.2 Overdriven Class A Amplifier 134
6.3 Overdriven Class AB Amplifier 139
6.4 Class F: Introduction and Theory 143
6.5 Class F in Practice 149
6.6 The Clipping Model for the Class F Mode—Class FD 155
6.7 PA_Waves 163
6.8 Class F Simulations 164
6.9 Conclusions 171
References 172
CHAPTER 7
Switching Mode Amplifiers for RF Applications 173
7.1 Introduction 173
7.2 A Simple Switching Amplifier 174
7.3 A Tuned Switching Amplifier 178
7.4 The Class D Switching Amplifier 180
7.4 Class E—Introduction 182
7.5 Class E—Simplified Analysis 183
7.6 Class E—Design Example 192
7.7 Conclusions 198
References 199
CHAPTER 8
Switching PA Modes at GHz Frequencies 201
8.1 Introduction 201
8.2 Ignoring the Obvious: Breaking the 100% Barrier 202
8.3 Waveform Engineering 205
8.4 PA_Waves 216
8.5 Implementation and Simulation 225
8.6 Conclusions 227
References 229
CHAPTER 9
Nonlinear Effects in RF Power Amplifiers 231
9.1 Introduction 231
9.2 Two-Carrier Power Series Analysis 233
9.3 Two-Carrier Envelope Analysis 240
9.4 Envelope Analysis with Variable PAR 246
9.5 AM to PM Effects 250
9.6 PA Memory Effects 256
9.7 Digital Modulation Systems 261
9.7.1 Introduction to Digital Modulation 261
9.7.2 QPSK Modulation Systems 262
9.7.3 CDMA and WCDMA 268
9.7.4 OFDM Modulation, 802.11/16 Standards 275
9.8 30 Watt LDMOS Test Amplifier Measurements 278
9.9 Conclusions 282
References 283
CHAPTER 10
Efficiency Enhancement Techniques 285
Introduction 285
10.1 Efficiency Enhancement 286
10.2 The Doherty Amplifier 290
10.3 Realization of the Doherty Amplifier 298
10.4 Outphasing Techniques 303
10.5 Envelope Elimination and Restoration (EER) 309
10.6 Envelope Tracking 311
10.7 Power Converters for EER and ET 314
10.8 Pulse Width Modulation (PWM) 318
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