Distributed Power Amplifiers for RF and Microwave Communications

Distributed Power Amplifiers for RF and Microwave Communications

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Overview

Distributed Power Amplifiers for RF and Microwave Communications by Narendra Kumar, Andrei Grebennikov

This comprehensive resource presents readers with all applicable information and design methodology of wideband amplifiers. The book focuses on specifically distributed amplifiers and their main components in different RF and microwave applications, including renowned historical and recent architectures, theoretical approaches, circuit simulation, and practical implementation techniques. This book covers numerous well-known and novel practical circuits along with detailed descriptions of operational principles that make it a great resource for practicing designers and engineers.

Product Details

ISBN-13: 9781608078318
Publisher: Artech House, Incorporated
Publication date: 05/31/2015
Pages: 410
Product dimensions: 7.20(w) x 10.10(h) x 1.10(d)

Table of Contents

Preface ix

Chapter 1 Two-Port Network Parameters 1

1.1 Impedance, Admittance, and ABCD Matrices 1

1.2 Scattering Parameters 4

1.3 Conversions Between Two-Port Networks 8

1.4 Practical Two-Port Networks 11

1.4.1 Single-Element Networks 11

1.4.2 π- and T-Type Networks 12

1.5 Lumped Elements 15

1.5.1 Inductors 15

1.5.2 Capacitors 18

1.6 Transmission Lines 20

1.6.1 Basic Parameters 21

1.6.2 Microstrip Line 25

1.6.3 Coplanar Waveguide 26

1.7 Noise Figure 28

References 34

Chapter 2 Power Amplifier Design Fundamentals 37

2.1 Main Characteristics 37

2.2 Impedance Matching 44

2.3 Gain and Stability 54

2.4 Basic Classes of Operation 61

2.5 Nonlinear Active Device Models 67

2.5.1 LDMOSFETs 67

2.5.2 GaAs MESFETs and GaN HEMTs 70

2.5.3 Low-Voltage and High-Voltage HBTs 75

2.6 DC Biasing 78

2.7 Impedance Transformers and Power Combiners 80

2.8 Directional Couplers 87

References 94

Chapter 3 Overview of Broadband Power Amplifiers 99

3.1 Bode-Fano Criterion 99

3.2 Matching Networks with Lumped Elements 102

3.3 Matching Networks with Mixed Lumped and Distributed Elements 112

3.4 Matching Networks with Transmission Lines 115

3.5 Lossy Matching Circuits 125

3.6 Push-Pull and Balanced Power Amplifiers 135

3.6.1 Basic Push-Pull Configuration 135

3.6.2 Baluns 137

3.6.3 Balanced Power Amplifiers 141

3.7 Practical Broadband RF and Microwave Power Amplifiers 143

References 149

Chapter 4 Distributed Amplification Concept and Its Design Methodology 153

4.1 Concept of Distributed Amplification 154

4.2 Image Impedance Method 155

4.3 Theoretical Analysis of Distributed Amplification 158

4.3.1 Analytical Approach to Two-Port Theory 158

4.3.2 Analytical Approach to Admittance Theory 160

4.3.3 Analytical Approach to Wave Theory 162

4.4 Gain/Power-Bandwidth Trade-Off 164

4.5 Practical Design Methodology 169

4.5.1 Design Goal/Specifications 169

4.5.2 Device Selection 170

4.5.3 Theoretical Analysis (Zero-Order Analysis) 170

4.5.4 Analysis with VCCS and Cgd (First-Order Analysis) 170

4.5.5 DC Biasing Circuitry Design 171

4.5.6 Device Modeling of GaN HEMTs 173

4.5.7 Loading Device into Distributed Output Network 174

4.5.8 Synthesizing Distributed Input/Output Networks 175

4.5.9 Layout Design 176

4.5.10 Full-Wave Simulation/Layout Optimization 176

References 179

Chapter 5 Efficiency Analysis of Distributed Amplifiers 183

5.1 Efficiency Limitations of Distributed Amplifiers 183

5.2 Virtual Impedance Analysis Using Multicurrent Sources 185

5.3 Simulation Analysis of Efficiency Analysis 193

5.4 Design Example of High-Efficiency Distributed Amplifier 196

5.5 Broadband Impedance Transformer Design 199

References 207

Chapter 6 Stability Analysis of Distributed Amplifiers 211

6.1 Motivation for Conducting Stability Analyses 211

6.2 Method of Stability Analysis 212

6.2.1 K-Factor Stability of a Two-Port Network 212

6.2.2 Feedback and NDF Factor 215

6.2.3 Pole-Zero Identification Method 218

6.3 Analysis and Conditions of Stability in Distributed Amplifiers 220

6.4 Parametric Oscillation Detection in Distributed Amplifiers 227

6.4.1 Stability Analysis of Distributed Amplifiers 227

6.4.2 Circuit Stabilization Technique 230

References 233

Chapter 7 Implementation of Distributed Amplifiers 237

7.1 Vacuum-Tube Distributed Amplifier 237

7.2 Microwave GaAs FET Distributed Amplifiers 243

7.2.1 Basic Configuration with Microstrip Lines 244

7.2.2 Basic Configuration with Lumped Elements 248

7.2.3 Capacitive Coupling 249

7.3 Tapered Distributed Amplifier 251

7.4 Power Combining 257

7.5 Bandpass Configuration 259

7.6 Parallel and Series Feedback 260

7.7 Cascode Distributed Amplifiers 263

7.8 Extended Resonance Technique 267

7.9 Cascaded Distributed Amplifiers 269

7.10 Matrix Distributed Amplifiers 273

7.11 CMOS Distributed Amplifiers 277

References 283

Chapter 8 Distributed Power Amplifiers 289

8.1 Dual-Fed Distributed Power Amplifier 289

8.2 Tapered Termination Cascaded Distributed Power Amplifier 298

8.3 Vectorially Combined Distributed Power Amplifier 310

8.3.1 Overview of Vectorially Combined DPA with Load Pull Determination 311

8.3.2 Impedance Transformer Design via Real-Frequency Technique 323

8.4 Drain-Line High-Power Device Loading Compensation 333

References 339

About the Authors 343

Index 345

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