| |
| |
| Preface | |
| |
| |
| About the Authors | |
| |
| |
| Acknowledgments | |
| |
| |
| |
| Power Amplifier Fundamentals | |
| |
| |
| |
| Introduction | |
| |
| |
| |
| Definition of Power Amplifier Parameters | |
| |
| |
| |
| Distortion Parameters | |
| |
| |
| |
| Power Match Condition | |
| |
| |
| |
| Class of Operation | |
| |
| |
| |
| Overview of Semiconductors for PAs | |
| |
| |
| |
| Devices for PA | |
| |
| |
| |
| Appendix: Demonstration of Useful Relationships | |
| |
| |
| |
| References | |
| |
| |
| |
| Power Amplifier Design | |
| |
| |
| |
| Introduction | |
| |
| |
| |
| Design Flow | |
| |
| |
| |
| Simplified Approaches | |
| |
| |
| |
| The Tuned Load Amplifier | |
| |
| |
| |
| Sample Design of a Tuned Load PA | |
| |
| |
| |
| References | |
| |
| |
| |
| Nonlinear Analysis for Power Amplifiers | |
| |
| |
| |
| Introduction | |
| |
| |
| |
| Linear vs. Nonlinear Circuits | |
| |
| |
| |
| Time Domain Integration | |
| |
| |
| |
| Example | |
| |
| |
| |
| Solution by Series Expansion | |
| |
| |
| |
| The Volterra Series | |
| |
| |
| |
| The Fourier Series | |
| |
| |
| |
| The Harmonic Balance | |
| |
| |
| |
| Envelope Analysis | |
| |
| |
| |
| Spectral Balance | |
| |
| |
| |
| Large Signal Stability Issue | |
| |
| |
| |
| References | |
| |
| |
| |
| Load Pull | |
| |
| |
| |
| Introduction | |
| |
| |
| |
| Passive Source/Load Pull Measurement Systems | |
| |
| |
| |
| Active Source/Load Pull Measurement Systems | |
| |
| |
| |
| Measurement Test-sets | |
| |
| |
| |
| Advanced Load Pull Measurements | |
| |
| |
| |
| Source/Load Pull Characterization | |
| |
| |
| |
| Determination of Optimum Load Condition | |
| |
| |
| |
| Appendix: Construction of Simplified Load Pull Contours through Linear Simulations | |
| |
| |
| |
| References | |
| |
| |
| |
| High Efficiency PA Design Theory | |
| |
| |
| |
| Introduction | |
| |
| |
| |
| Power Balance in a PA | |
| |
| |
| |
| Ideal Approaches | |
| |
| |
| |
| High Frequency Harmonic Tuning Approaches | |
| |
| |
| |
| High Frequency Third Harmonic Tuned (Class F) | |
| |
| |
| |
| High Frequency Second Harmonic Tuned | |
| |
| |
| |
| High Frequency Second and Third Harmonic Tuned | |
| |
| |
| |
| Design by Harmonic Tuning | |
| |
| |
| |
| Final Remarks | |
| |
| |
| |
| References | |
| |
| |
| |
| Switched Amplifiers | |
| |
| |
| |
| Introduction | |
| |
| |
| |
| The Ideal Class E Amplifier | |
| |
| |
| |
| Class E Behavioural Analysis | |
| |
| |
| |
| Low Frequency Class E Amplifier Design | |
| |
| |
| |
| Class E Amplifier Design with 50% Duty-cycle | |
| |
| |
| |
| Examples of High Frequency Class E Amplifiers | |
| |
| |
| |
| Class E vs. Harmonic Tuned | |
| |
| |
| |
| Class E Final Remarks | |
| |
| |
| |
| Appendix: Demonstration of Useful Relationships | |
| |
| |
| |
| References | |
| |
| |
| |
| High Frequency Class F Power Amplifiers | |
| |
| |
| |
| Introduction | |
| |
| |
| |
| Class F Description Based on Voltage Wave-shaping | |
| |
| |
| |
| High Frequency Class F Amplifiers | |
| |
| |
| |
| Bias Level Selection | |
| |
| |
| |
| Class F Output Matching Network Design | |
| |
| |
| |
| Class F Design Examples | |
| |
| |
| |
| References | |
| |
| |
| |
| High Frequency Harmonic Tuned Power Amplifiers | |
| |
| |
| |
| Introduction | |
| |
| |
| |
| Theory of Harmonic Tuned PA Design | |
| |
| |
| |
| Input Device Nonlinear Phenomena: Theoretical Analysis | |
| |
| |
| |
| Input Device Nonlinear Phenomena: Experimental Results | |
| |
| |
| |
| Output Device Nonlinear Phenomena | |
| |
| |
| |
| Design of a Second HT Power Amplifier | |
| |
| |
| |
| Design of a Second and Third HT Power Amplifier | |
| |
| |
| |
| Example of 2nd HT GaN PA | |
| |
| |
| |
| Final Remarks | |
| |
| |
| |
| References | |
| |
| |
| |
| High Linearity in Efficient Power Amplifiers | |
| |
| |
| |
| Introduction | |
| |
| |
| |
| Systems Classification | |
| |
| |
| |
| Linearity Issue | |
| |
| |
| |
| Bias Point Influence on IMD | |
| |
| |
| |
| Harmonic Loading Effects on IMD | |
| |
| |
| |
| Appendix: Volterra Analysis Example | |
| |
| |
| |
| References | |
| |
| |
| |
| Power Combining | |
| |
| |
| |
| Introduction | |
| |
| |
| |
| Device Scaling Properties | |
| |
| |
| |
| Power Budget | |
| |
| |
| |
| Power Combiner Classification | |
| |
| |
| |
| The T-junction Power Divider | |
| |
| |
| |
| Wilkinson Combiner | |
| |
| |
| |
| The Quadrature (90�) Hybrid | |
| |
| |
| |
| The 180� Hybrid (Ring Coupler or Rat-race) | |
| |
| |
| |
| Bus-bar Combiner | |
| |
| |
| |
| Other Planar Combiners | |
| |
| |
| |
| Corporate Combiners | |
| |
| |
| |
| Resonating Planar Combiners | |
| |
| |
| |
| Graceful Degradation | |
| |
| |
| |
| Matching Properties of Combined PAs | |
| |
| |
| |
| Unbalance Issue in Hybrid Combiners | |
| |
| |
| |
| Appendix: Basic Properties of Three-port Networks | |
| |
| |
| |
| References | |
| |
| |
| |
| The Doherty Power Amplifier | |
| |
| |
| |
| Introduction | |
| |
| |
| |
| Doherty's Idea | |
| |
| |
| |
| The Classical Doherty Configuration | |
| |
| |
| |
| The 'AB-C' Doherty Amplifier Analysis | |
| |
| |
| |
| Power Splitter Sizing | |
| |
| |
| |
| Evaluation of the Gain in a Doherty Amplifier | |
| |
| |
| |
| Design Example | |
| |
| |
| |
| Advanced Solutions | |
| |
| |
| |
| References | |
| |
| |
| Index | |