III
Contents
Page
Preface III
Contents III
Preface X
Acknowledgement XI
About the Author XII
Chapter 1: Introduction 1
RF Electronics Design 1
Computer Simulation 3
References 4
Chapter 2: Computer Simulation 5
Introduction 5
Basic Operation 6
Example 2.1: Low Pass Filter 6
Equations in AWR DE 10
Optimisation 11
Example 2.2: Diplexer 11
Device Models 16
Linear Models 16
Non-Linear Models 18
Example 2.3: Low Noise Amplifier 23
Determination of Transmission Line Parameters 24
Nonlinear Time Based Simulation 27
Time Domain Transient Circuit Simulation 28
Example 2.4: Buck DC-DC Converter 28
Harmonic Balance Circuit Simulation 33
Black Box Matching of Circuits to Measurements 35
Example 2.5: Bandpass T Matching Network 35
S Parameter Measurements 37
Impedance Measurements 40
Summary 48
References 48
Chapter 3: Transformers and Hybrids 50
Introduction 50
Wideband Transformers 51
Example 3.1: RF Transformer Design 52
Bifilar and Trifilar Windings 53
Transmission line transformers with ferrite cores 54
Transformer Hybrids 56
Power Combiner / Splitter 57
Wilkinson Transformer Hybrid 58
Example 3.2 Wilkinson Transformer Hybrid Design 59
RF Electronics: Design and Simulation
III www.cadence.com/go/awr