RF Power Amplifiers Wireless Comms 2e

By: Steve C. Cripps

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Hardcover | 30 June 2006 | Edition Number 2

At a Glance

Hardcover
474 Pages

Edition Type
Revised

Dimensions(cm)
26.24 x 18.44 x 2.9

Hardcover

$525.75

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Reviewing the previous edition, "IEEE Microwave Magazine" boasted, "anyone designing power amplifiers will find this book thought provoking and useful." Professionals in the field agreed as the book went on to be one of our top-selling RF design titles. This extensively revised edition of "RF Power Amplifiers for Wireless Communications" offers practitioners a comprehensive, practical, and up-to-date understanding of how to tackle a PA (power amplifier) design with confidence and quickly determine the cause of malfunctioning hardware. Among the numerous updates, the Second Edition includes five new chapters on some of today's most important topics, such as class AB PAs at GHz frequencies; switching PA modes at GHz frequencies; signals, modulation systems, and PA nonlinearities; power amplifier bias circuit design; and load-pull techniques. Supported with nearly 200 illustrations, the book contains the most complete survey of RF PA efficiency enhancement and linearization techniques in a single volume.

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Non-Fiction Engineering & Technology Energy Technology & Engineering Electrical Engineering Electronics & Communications Engineering Electronics Engineering Microwave Technology Communications Engineering & Telecommunications WAP & Wireless Technology

Preface to the Second Edition	p. xi
Introduction	p. 1
Introduction	p. 1
Linear RF Amplifier Theory	p. 2
Weakly Nonlinear Effects: Power and Volterra Series	p. 5
Strongly Nonlinear Effects	p. 6
Nonlinear Device Models for CAD	p. 9
Conjugate Match	p. 11
RF Power Device Technology	p. 14
References	p. 15
Linear Power Amplifier Design	p. 17
Class A Amplifiers and Linear Amplifiers	p. 17
Gain Match and Power Match	p. 19
Introduction to Load-Pull Measurements	p. 20
Loadline Theory	p. 21
Package Effects and Refinements to Load-Pull Theory	p. 27
Drawing the Load-Pull Contours on CAD Programs	p. 31
Class A Design Example	p. 31
Conclusions	p. 36
References	p. 37
Conventional High Efficiency Amplifier Modes	p. 39
Introduction	p. 39
Reduced Conduction Angle-Waveform Analysis	p. 40
Output Termination	p. 43
Reduced Conduction Angle Mode Analysis-FET Model	p. 47
Class A	p. 48
Class AB	p. 49
Class B	p. 51
Class C	p. 53
Reduced Conduction Angle Mode Analysis-BJT Model	p. 55
Effect of I-V "Knee"	p. 59
Input Drive Requirements	p. 61
Conclusions	p. 65
References	p. 65
Class AB PAs at GHz Frequencies	p. 67
Introduction	p. 67
Class AB Using a Capacitive Harmonic Termination-The Class J PA	p. 68
Theory	p. 68
Practicalities	p. 73
Nonlinear Device Characteristics	p. 77
Nonlinear Capacitance Effects in RF Power Devices	p. 81
Introduction	p. 81
Nonlinear Capacitors-Characterization and Analysis	p. 81
Input Varactor Effects on Class AB PAs	p. 84
Conclusions	p. 89
References	p. 89
Practical Design of Linear RF Power Amplifiers	p. 91
Low-Pass Matching Networks	p. 92
Transmission Line Matching	p. 100
Shorting the Harmonics	p. 102
A Generic MESFET	p. 105
A 2W Class B Design for 850 MHz	p. 107
The Pi Section Power Matching Network	p. 112
Pi Section Analysis for PA Design	p. 115
Class J Design Example	p. 122
HBT Design Example	p. 124
Conclusions	p. 129
References	p. 131
Overdriven PAs and the Class F Mode	p. 133
Introduction	p. 133
Overdriven Class A Amplifier	p. 134
Overdriven Class AB Amplifier	p. 139
Class F: Introduction and Theory	p. 143
Class F in Practice	p. 149
The Clipping Model for the Class F Mode-Class FD	p. 155
PA_Waves	p. 163
Class F Simulations	p. 164
Conclusions	p. 171
References	p. 172
Switching Mode Amplifiers for RF Applications	p. 173
Introduction	p. 173
A Simple Switching Amplifier	p. 174
A Tuned Switching Amplifier	p. 178
The Class D Switching Amplifier	p. 180
Class E-Introduction	p. 182
Class E-Simplified Analysis	p. 183
Class E-Design Example	p. 192
Conclusions	p. 198
References	p. 199
Switching PA Modes at GHz Frequencies	p. 201
Introduction	p. 201
Ignoring the Obvious: Breaking the 100% Barrier	p. 202
Waveform Engineering	p. 205
PA_Waves	p. 216
Implementation and Simulation	p. 225
Conclusions	p. 227
References	p. 229
Nonlinear Effects in RF Power Amplifiers	p. 231
Introduction	p. 231
Two-Carrier Power Series Analysis	p. 233
Two-Carrier Envelope Analysis	p. 240
Envelope Analysis with Variable PAR	p. 246
AM to PM Effects	p. 250
PA Memory Effects	p. 256
Digital Modulation Systems	p. 261
Introduction to Digital Modulation	p. 261
QPSK Modulation Systems	p. 262
CDMA and WCDMA	p. 268
OFDM Modulation, 802.11/16 Standards	p. 275
30 Watt LDMOS Test Amplifier Measurements	p. 278
Conclusions	p. 282
References	p. 283
Efficiency Enhancement Techniques	p. 285
Introduction	p. 285
Efficiency Enhancement	p. 286
The Doherty Amplifier	p. 290
Realization of the Doherty Amplifier	p. 298
Outphasing Techniques	p. 303
Envelope Elimination and Restoration (EER)	p. 309
Envelope Tracking	p. 311
Power Converters for EER and ET	p. 314
Pulse Width Modulation (PWM)	p. 318
Other Efficiency Enhancement Techniques	p. 323
The Sequential Power Amplifier	p. 323
Pulse Position Modulation	p. 325
RF to DC Conversion	p. 326
RF Switching Techniques	p. 328
Smart Antennas	p. 329
Case Studies in Efficiency Enhancement	p. 330
Conclusions	p. 333
References	p. 334
Power Amplifier Bias Circuit Design	p. 337
Introduction	p. 337
Stability of RF Power Transistors	p. 338
Bias Supply Modulation Effects	p. 343
Bias Network Design	p. 350
Bias Insertion Networks	p. 353
Prime Power Supply Issues	p. 354
Bias Control Circuits	p. 355
Conclusions	p. 356
References	p. 357
Load-Pull Techniques	p. 359
Tuner Design for Fundamental Load-Pull	p. 359
Harmonic Load-Pull	p. 362
Active Harmonic Load-Pull	p. 365
Variations, Results, Conclusions	p. 367
References	p. 369
Power Amplifier Architecture	p. 371
Introduction	p. 371
Push-Pull Amplifiers	p. 372
Balanced Amplifiers	p. 380
Power Combining	p. 387
Multistage PA Design	p. 391
Conclusions	p. 394
References	p. 395
Power Amplifier Linearization Techniques	p. 397
Introduction	p. 397
Introduction to PA Linearization	p. 399
Predistortion	p. 401
Introduction to Predistortion Theory	p. 401
Digital Predistortion (DPD)	p. 404
Analog Predistortion	p. 407
Predistortion-Conclusions	p. 410
Feedforward Techniques	p. 410
Feedforward, Introduction	p. 410
Feedforward-Gain Compression	p. 411
Feedforward-Effect of the Output Coupler	p. 414
Feedforward-Adaptive Controls	p. 417
Feedforward-Practical Issues, Conclusions	p. 418
Feedback Techniques	p. 419
Introduction, Direct Feedback Techniques	p. 419
Indirect Feedback Techniques-Introduction	p. 420
The Cartesian Loop	p. 421
The Polar Loop	p. 423
Other Linearization Methods	p. 424
Conclusions	p. 425
References	p. 426
PA_Waves	p. 429
Spectral Analysis Using Excel IQ Spreadsheets	p. 433
Bibliography	p. 435
Introductory Texts on RF and Microwave Techniques	p. 435
Wireless Communications	p. 435
Digital Modulation	p. 435
Nonlinear Techniques and Modeling	p. 435
Power Amplifier Techniques	p. 435
Recommended Reading	p. 436
Glossary	p. 437
About the Author	p. 441
Index	p. 443
Table of Contents provided by Ingram. All Rights Reserved.

RF Power Amplifiers Wireless Comms 2e

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