Overview

RF and Microwave Power Amplifiers is a comprehensive guide to designing and understanding RF power amplifiers and systems, with a focus on achieving high efficiency across all classes and variations. This book provides essential tools and techniques for mastering the most critical areas of RF design, including Laterally Diffused Metal-Oxide-Semiconductor (LDMOS), Gallium Nitride (GaN), and Heterojunction Bipolar Transistor (HBT).   This resource explores aspects of operation, including power, efficiency, saturation effects, biasing, drive mismatches, switching, and design strategies for handling Standing Wave Ratio (SWR). It focuses on real-world applications, focusing on how efficiency improvements contribute to higher output power, greater reliability, reduced size and cost, and longer battery life for portable devices.   This book combines foundational theory with practical insights, offering step-by-step equations, final design formulas, and problems-solving techniques. With background material, advanced discussions, and solutions for self-study or classroom use, it is a guide to understanding and designing efficient, reliable RF power amplifiers. It serves as an indispensable resource for practicing engineers transitioning into RF power, experienced RF designers in need of a reliable reference, and students preparing for a career in one of the most in-demand areas of the industry.

Full Product Details

Author:   Frederick Raab
Publisher:   Artech House Publishers
Imprint:   Artech House Publishers
Edition:   Unabridged edition
Dimensions:   Width: 17.80cm , Height: 3.20cm , Length: 25.40cm
Weight:   1.202kg
ISBN:  

9781685690830

ISBN 10:   1685690831
Pages:   550
Publication Date:   31 March 2025
Audience:   Professional and scholarly ,  Professional & Vocational
Format:   Hardback
Publisher's Status:   Active
Availability:   In Print  
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Table of Contents

CHAPTER 1. POWER AMPLIFIERS AND SYSTEMS 1-1 Applications of Power Amplifiers 1-2 Construction of Power Amplifiers 1-3 Basic Concepts 1-4 Efficiency Characteristics 1-5 Power Amplifiers vs. Small-Signal Amplifiers 1-6 Classes of Power Amplifiers 1-7 Power Amplifiers vs. Amplifier Systems 1-8 Definitions and Mathematics 1-9 Utilization Factor 1-10 Harmonics, Distortion, and Spurious Products   CHAPTER 2. SIGNALS 2-1 Characterization of Narrow-Band Signals 2-2 Average Efficiency 2-3 Probability-Density Functions 2-4 PDFs of Common Signals 2-5 Range of Peak Power 2-6 Linearity 2-7 References 2-8 Problems 2-A Conversion of PDFs   CHAPTER 3. LOADS 3-1 Basic Concepts for Power Amplifiers 3-2 Mismatched Loads 3-3 Smith Chart 3-4 Ratings 3-5 Cripps’ Method 3-6 Load-Pull Techniques 3-7 S Parameters (Two-Port Networks) 3-8 Stability 3-9 Multiple Sources 3-10 References 3-11 Problems 3-A Conversions: SWR - Reflection Coefficient - Return Loss 3-B Conversions: S and ABCD Parameters 3-C Conversions: S and T Parameters   CHAPTER 4. RF-POWER TRANSISTORS 4-1 Ratings and Specifications 4-2 Packages 4-3 Models for RF-Power Transistors 4-4 MOSFETs 4-5 GaN HEMTs 4-6 Bipolar RF-Power Transistors 4-7 Other RF-Power Devices 4-8 Reliability 4-9 Configurations 4-10 Miller Effect and Neutralization 4-11 RF Feedback 4-12 References 4-13 Problems   CHAPTER 5. CLASS-A POWER AMPLIFIERS 5-1 Single-Ended Class-A Amplifier 5-2 Saturation Voltage and Resistance 5-3 Variation of Load Impedance 5-4 Average Efficiency 5-5 Push-Pull Class-A Amplifier 5-6 Variable Quiescent Current 5-7 Problems   CHAPTER 6. CLASS-B POWER AMPLIFIERS 6-1 Push-Pull Class-B Amplifier 6-2 Saturation Voltage and Resistance 6-3 Variation of Load Impedance 6-4 Average Efficiency 6-5 Broadband Push-Pull Configurations 6-6 Single-Ended Configurations 6-7 Complementary and Quasi-Complementary Configurations 6-8 Quasi-Complementary Configurations with Separate Dc Feeds 6-9 Biasing Class-B Amplifiers 6-10 Driving Class-B Amplifiers 6-11 References 6-12 Problems   CHAPTER 7. CLASS-C POWER AMPLIFIERS 7-1 Classical Class-C Ampliier 7-2 Square-Wave Drain Current 7-3 Operation in Saturation 7-4 Drive and Bias 7-5 Mismatched Loads 7-6 Harmonics and Frequency Multiplication 7-7 Supply Modulation 7-8 Gate-Bias Modulation 7-9 References 7-10 Problems   CHAPTER 8. CLASS-D POWER AMPLIFIERS 8-1 Complementary Class-D Power Amplifier 8-2 Other Complementary Class-D Power Amplifiers 8-3 Transformer-Coupled Voltage-Switching Class-D Power Amplifiers 8-4 Full-Bridge Configuration 8-5 Current-Switching Configuration 8-6 Untuned Class-D Power Amplifiers 8-7 Effects of Saturation 8-8 Mismatched Loads 8-9 Switching Time and Alignment 8-10 Effect of Drain Capacitance upon Voltage-Switching Class-D PA 8-11 Effect of Drain Capacitance upon Current-Switching Class-D PA 8-12 Output Filters and Matching Networks 8-13 Driving Switching PAs 8-14 Switching Transients 8-15 Modulation of Switching Amplifiers 8-16 Class-D Frequency Multipliers 8-17 References 8-18 Problems   CHAPTER 9. CLASS-E POWER AMPLIFIERS - BASICS 9-1 Single-Ended Class-E Power Amplifier 9-2 Push-Pull Class-E Power Amplifier 9-3 Effects of Saturation 9-4 Effects of Switching Time 9-5 Effects of Variations in Circuit Components 9-6 Effects of Variations in Load Impedance 9-7 Harmonics 9-8 Filters and Matching Networks 9-9 Driving Class-E PAs 9-10 Switching Transients 9-11 Amplitude Modulation of Class-E PAs 9-12 References 9-13 Problems 9-A Basic Equations for Ideal Class-E Amplifier 9-B Equations for Optimum Operation 9-C Equations for General Operation 9-D Effects of Virtual-Drain Impedance 9-E Calculation of Harmonics   CHAPTER 10. CLASS-E POWER AMPLIFIERS - ADVANCED TOPICS 10-1 Higher-Frequency Operation with Excess Capacitance 10-2 Broadband Operation of Standard Class E 10-3 Finite Choke Impedance 10-4 Broadband Operation of Finite-Choke Class-E PAs 10-5 Effects of Varactor Capacitance 10-6 Class-E Frequency Multipliers 10-7 Class-DE Power Amplifiers 10-8 Class-EF Power Amplifiers 10-9 Realizability of Waveforms 10-10 References 10-11 Problems 10-A Suboptimum Class E 10-B Formulas for Class EF   CHAPTER 11. CLASS-F POWER AMPLIFIERS - BASICS 11-1 Third-Harmonic Peaking 11-2 All-Harmonic Class F 11-3 Second-Harmonic Peaking 11-4 All-Harmonic Inverse Class F 11-5 Class F with Finite Number of Harmonics 11-6 Saturation Voltage and Resistance 11-7 Mismatched Loads 11-8 Output Networks Using Transmission Lines 11-9 Output Networks Using Discrete Components 11-10 Driving and Biasing Class-F PAs 11-11 Linear Operation 11-12 Amplitude Modulation 11-13 References 11-14 Problems 11-A Maximally Flat Waveforms 11-B Transmission-Line Matching Networks   CHAPTER 12. CLASS-F POWER AMPLIFIERS - ADVANCED TOPICS 12-1 General Formulation 12-2 Finite-Harmonic Class C 12-3 Class E in the Frequency Domain 12-4 Finite-Hamonics Class-E PAs 12-5 Transitional Power Amplifiers 12-6 PA Classes in the Frequency Domain 12-7 Class-J PA 12-8 Second-Harmonic Continuous-Mode Waveforms 12-9 Fourth-Harmonic Continuous-Mode Waveforms 12-10 Output Networks for Continuous-Mode PAs 12-11 Harmonic Injection 12-12 References 12-13 Problems   APPENDIX A. ACRONYMS APPENDIX B. FREQUENCY RANGES APPENDIX F. FOURIER SERIES APPENDIX L. RF POWER-AMPLIFIER BIBLIOGRAPHY APPENDIX M. MATH SYMBOLS APPENDIX P. PHYSICAL CONSTANTS APPENDIX T. TRANSMISSION-LINE TRANSFORMERS APPENDIX U. UNITS APPENDIX W. TRANSMISSION LINES INDEX

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Frederick H. Raab is well-known and respected for his expertise in the development of high efficiency power amplifiers and transmitters.

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