Automated Broad and Narrow Band Impedance Matching for RF and Microwave Circuits (eBook)

Amal Banerjee is Engineering Manager at Analog Electronics, in Kolkata, India, specializing in design and manufacture of RF and microwave filters, precision power supplies, oscillators, microstrip waveguides etc., as well as special software for designing filters etc., The clients of Analog Electronics are spread across India, Vietnam and USA.  He has authored/co-authored conference papers and books on SystemC/SystemC-AMS and distributed and lumped element electronic filter design.

Preface 6
Contents 8
Chapter 1: Introduction and Problem Statement 11
1.1 Introduction 11
1.2 Why Impedance Matching Is Essential 12
1.3 How to Implement Impedance Matching: Conjugate Matching Condition 14
Chapter 2: Narrow Band Impedance Matching 16
2.1 Introduction 16
2.2 The Common L Impedance Transformer with Complex Load and Source Impedances 16
2.3 Single Transmission Line Segment to Match Complex Load-Source Impedances 18
2.4 The Concept of Reflection Coefficients 19
2.5 The Lambda/12 Transmission Line Impedance Transformer with Complex Load-Source Impedances 20
2.6 Single Series or Shunt Closed/Open Transmission Line Impedance Transformers 22
2.7 Double Series or Shunt Closed/Open Transmission Line Impedance Transformer 23
References 25
Chapter 3: Broadband Impedance Matching 26
3.1 Introduction 26
3.2 Bode-Fano Conditions on Gain Bandwidth of Broadband Impedance Matching Networks 26
3.3 Converting Complex Series RC or RL or Parallel RC or RL Load into Pure Resistance: The Zobel Network and Parallel to Equiv... 28
3.4 Active Impedance Matching and Neutralizing Reactances or Susceptances of Complex Impedances or Admittances 30
3.5 Low-Pass Configuration Matching Network Design with Bode-Fano Constraints and Table Lookup 33
3.6 Impedance Matching of Equal Real Source and Load Resistors with Load Having Nonzero Reactance Low-Pass and Band-Pass Match... 35
3.7 Norton Series and Shunt Transforms for Matching Unequal Load Source Impedances 36
3.8 Generalized Norton Transforms for Matching Unequal Load-Source Impedances 37
3.9 Impedance Matching and Frequency Compensation of Semiconductor Devices (RF and Microwave FETs) 38
3.10 Real Frequency Impedance Matching Using Hilbert Transforms and No Optimization 39
3.11 The Ideal Transformer as the Ideal Impedance Matching Device Deficiencies of the Conventional Transformer 41
3.12 Transmission Line Impedance Transformers-Guanella and Ruthroff 43
References 44
Chapter 4: Automated Impedance Matching Network Design Process and Design Examples with SPICE Performance Evaluation 46
4.1 Introduction 46
4.2 ``L´´ Lumped Element Impedance Transformer - Automated Design and SPICE Performance Evaluation 46
4.3 Single Transmission Line Segment Impedance Transformer - Automated Design and SPICE Performance Evaluation 52
4.4 Single/Double Closed-/Open-Circuit Transmission Line Stub Impedance Transformer - Automated Design and SPICE Performance A... 56
4.5 ``Convert´´ Complex Load to Resistance - Parallel/Series Capacitor or Inductor Load Reactance - Automated Design and SPICE... 59
4.6 Active Impedance Matching with Bi-junction Transistors in Feedback Loop and Shorted Transmission Line Segments to Neutrali... 69
4.7 Broad/Wide Band Impedance Matching with Unequal Source and Load Resistance Norton Single Element Series/Shunt Transforms -... 75
4.8 Broad/Wide Band Impedance Matching with Unequal Source and Load Resistance General Norton to Element PI, T Transforms - Au... 80
4.8.1 Key Observation 83
4.9 Broad/Wide Band Low-Pass Matching Network - Equal Source-Load Resistance - Parallel Load Capacitor - One-End Reflections -... 85
4.10 Low-Pass Configuration Matching Network Design with Bode-Fano Constraints - Automated Design and Evaluation of Continued ... 90
4.11 Non-optimized Real Frequency Method - Automated Design and Numerical Integration Evaluation of Hilbert Transform 94
4.12 Guanella 1:n Ideal and Lossy Transmission Line Transformer Impedance Matching - Real Load Automated Design and SPICE Perf... 96
4.13 Guanella 1:n Ideal and Lossy Transmission Line Transformer Impedance Matching Complex Series Load - Automated Design and ... 101
4.14 Guanella 1:n Ideal and Lossy Transmission Line Transformer Impedance Matching - Complex Parallel RL Load - Automated Desi... 105
4.15 Simple Broad/Wide Band Impedance Matching Scheme 109
Appendix A: Supplied C Computer Language Executables for the Linux and Windows Operating Systems 111
Appendix B: How to Install MingW (GCC Compiler Suite) on Computers Running Windows Operating System 113
Index 114