Intro
Foreword
Preface
Contents
About the Author
1 Introduction
1.1 GaN Semiconductor
1.2 GaN Amplifiers
1.3 Class of Power Amplifiers
1.4 Output Power and Efficiency of Power Amplifiers
1.5 Book Outline
References
2 GaN Semiconductor
2.1 Introduction
2.2 GaN Semiconductor
2.3 Sheet Carrier Density in GaN Heterostructure
References
3 Microwave GaN Transistors
3.1 Introduction
3.2 AlGaN/GaN HEMT
3.3 InAlN/GaN HEMT
3.4 High Power GaN HEMTs
3.5 Characteristic and Equivalent Circuit of GaN HEMTs
References

4 Microwave High Power Amplifiers
4.1 Introduction
4.2 Design of Linear High Power Amplifier
4.2.1 Load Matching Condition for Power Amplifier Design
4.2.2 Load Line Concept in Power Amplifier Design
4.3 Load Pull Measurement and Constant Power Contours
4.4 Power Contours with De-embedding of Elements
4.5 Power Contours for Nonlinear Power Amplifiers
4.6 Stability of Power Amplifiers
4.7 Bias Network of High Power Amplifiers
References
5 Class-A High Power Amplifiers
5.1 Introduction
5.2 Linear Power Amplifier
5.3 Broadband Class-A Linear Power Amplifier

5.4 Overdriven Class-A Power Amplifiers
References
6 Class-B High Power Amplifiers
6.1 Introduction
6.2 Class-B High Power Amplifier with Resistive Load
6.3 Class-B High Power Amplifier with Tuned Load
6.4 Efficiency Under Power Back-Off Operation
6.5 Overdriven Class-B Power Amplifiers
References
7 Class-F High Power Amplifiers
7.1 Introduction
7.2 Maximum RF Output Power and Efficiency
7.3 Output Matching Elements
7.3.1 Load Impedance for Fundamental Frequency
7.3.2 Load Impedances for Harmonic Frequencies

7.4 Broadband Performance of Class-F Amplifier
7.5 Continuous Class-F Amplifiers
7.6 Extended Continuous Class-F Amplifiers
7.6.1 Load Impedance of Fundamental Frequency
7.6.2 Load Impedance of 2nd Harmonic Frequency
7.6.3 Load Impedance of 3rd Harmonic Frequency
7.6.4 Load Impedance of 4th Harmonic Frequency
7.6.5 RF Output Power of Fundamental Frequency
7.6.6 Drain Efficiency
References
8 Class-J High Power Amplifiers
8.1 Introduction
8.2 Class-J Amplifier
8.2.1 Output Power and Efficiency of Class-J Amplifier

8.2.2 Output Load Impedance of Class-J Amplifier
8.3 Extended Class-J Amplifier
8.3.1 Output Power and Efficiency of Extended Class-J Amplifier
8.3.2 Output Impedances of Extended Class-J Amplifier
References
9 Impedance Matching Techniques
9.1 Introduction
9.2 Impedance Matching Requirement of Power Amplifiers
9.3 Impedance Matching Networks
9.3.1 Lumped Elements for Impedance Matching
9.3.2 Lumped Element Impedance Matching Networks
9.3.3 Transmission Line Elements for Impedance Matching
9.3.4 Transmission Line Transformers for Impedance Matching