Microwave High Power High Efficiency GaN Amplifiers for Communication (Lecture Notes in Electrical Engineering, 955)

✍ Scribed by Subhash Chandra Bera

• Publisher: Springer
• Year: 2022
• Tongue: English
• Leaves: 263
• Category: Library

✦ Synopsis

The textbook discusses design and analysis of microwave high power and high efficiency amplifiers for communications, appropriate for undergraduate, post-graduate students, practical circuit designers and researchers in the field of electronics and communication engineering. This book covers basics of III-V group semiconductor materials and GaAs and GaN based High Electron Mobility Transistors (HEMTs) most suitable for microwave and mm wave power amplifiers required for present wireless communication systems and upcoming 4G and 5G mobile base stations. The book describes design and analysis of classical class of amplifier operations such as Class-A, B, AB, C and F. The coverage extends to advanced classes of amplifier operation such as extended continuous Class-B/Class-J, and extended continuous Class-F operations for broadband, high power and high efficiency performance. Analytical expressions are derived for circuit elements and performance parameters for clear understanding and required for practical design of power amplifiers. Each topic is supplemented with suitable schematic diagrams, analytical expressions and plotted results for clear understanding.

✦ Table of Contents

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
9.3.5 Transmission Line Impedance Matching Networks
9.4 Broadband Impedance Transformers
9.4.1 Lumped Element Broadband Impedance Transformers
9.4.2 Transmission Line Broadband Impedance Transformers
9.5 Multiband Impedance Matching Transformer
9.5.1 Single Series Line Transformer for Dual-Band Impedance Matching
9.5.2 Two Series Line Transformer for Dual-Band Impedance Matching
9.5.3 Three Series Line Transformer for Dual-Band Impedance Matching
9.5.4 Tri-Band Impedance Matching Network
References
10 Thermal Design of GaN High Power Amplifiers
10.1 Introduction
10.2 Heat Dissipation and Temperature Distribution in GaN Devices
10.3 Temperature Dependency of RF Performance
10.4 Temperature Dependency of Device Reliability
10.5 Thermal Management in GaN Power Amplifiers
10.5.1 Device Level Thermal Management
10.5.2 Amplifier Level Thermal Management
References
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Index