Modern Passive Circuit Design for Wireless: Applications in Communications, Radar, and EW Systems

Modern Passive Circuit Design for Wireless: Applications in Communications, Radar, and EW Systems delivers a comprehensive treatment of ultrawideband, dual-band, reconfigurable, differential-mode, and harmonic-suppressed passive circuits across RF, microwave, and millimeter-wave domains. Drawing on two decades of evolution in planar and integrated technologies, this book equips engineers with the modern techniques required to meet aggressive size, weight, bandwidth, and cost constraints in today’s front ends.

Gain a systematic framework for choosing the right circuit topology, selecting the optimal fabrication technology, and understanding the physical mechanisms that govern broadband and multiband performance. Bridge theory and fabrication using PCB, MIC, MMIC, RFIC, SIW, slow-wave structures, defected ground structures, metamaterials, fractals, and lumped-element approaches. Evaluate competing design techniques, understand circuit behavior, and implement compact, multifunction passives using technologies such as slow-wave structures, defected ground structures, SIW, metamaterials, fractal geometries, and lumped-element techniques. Detailed analysis, closed-form design equations, performance tables, measured data, and step-by-step design procedures enable practitioners to move confidently from concept to hardware. Extensive and up-to-date references support deeper research, while practical design guidance and solved examples accelerate development cycles and reduce costly iteration.

Focusing on current trends toward smaller, lighter, broadband, multiband and multifunction components and circuits, this timely reference is an essential design tool for professionals designing compact, high-performance RF and millimeter-wave subsystems for next-generation wireless, defense, and emerging high-frequency applications.

1 Introduction
1.1 Introduction
1.2 Modern Passive Circuit Design Techniques
1.3 Multi-Port Network Representation
1.4 Even- and Odd-Mode Analysis of Symmetrical Networks
1.5 Analysis of Coupled Lines
1.6 Design Methodology of Passive Components
1.7 Fabrication of Passive Components
1.8 Measurements of Passive Components
1.9 Scope of the Book

2 Transmission Lines and Lumped Elements
2.1 Transmission Lines
2.2 Transmission Line Characteristics
2.3 Coaxial Lines
2.4 Waveguides
2.5 Printed Transmission Lines
2.6 Slow-Wave Structures
2.7 Defected-Ground Structure
2.8 Metamaterial Lines
2.9 Substrate-Integrated Waveguide
2.10 Coupled Lines
2.11 Lumped Elements

3 Branch-Line Hybrids
3.1 900 Hybrid Parameter Definition and Analysis
3.2 Broadband BLHs
3.3 Dual-Band BLHs
3.4 BLH with Harmonic Suppression
3.5 Reconfigurable 3-dB BLH
3.6 Differential 3-dB BLHs
3.7 Compact BLHs

4 Rat-Race Couplers
4.1 Introduction
4.2 Broadband RRCs
4.3 Dual-Band RRCs
4.4 Harmonic Suppression in RRCs
4.5 Reconfigurable Rat-Race Couplers
4.6 Differential 3-dB 1800 Hybrids
4.7 Compact 3-dB RRCs

5 Power Dividers
5.1 Introduction
5.2 Analysis of Wilkinson Power Divider
5.3 Broadband PDs
5.4 Dual-Band PDs
5.5 Power Dividers with Harmonic Suppression
5.6 Reconfigurable 2-Way Power Divider
5.7 Differential-Mode Power Dividers
5.8 Compact PDs
5.9 Other Power Dividers

6 Directional Couplers
6.1 Introduction
6.2 Tight-Directional Couplers
6.3 Broadband Directional Couplers
6.4 Dual-Band Directional Couplers
6.5 Directional Couplers with Harmonic Suppression
6.6 Reconfigurable Directional Couplers
6.7 Differential-Directional Couplers
6.8 High-Directivity Couplers
6.9 Compact-Directional Couplers

7 Filters
7.1 Introduction
7.2 Filter Types and Design Methodology
7.3 Ultra-Wideband Filters
7.4 Dual-Band Bandpass Filters
7.5 Reconfigurable Filters
7.6 High-Selectivity and Wide Stopband Filters
7.7 Differential-Mode Bandpass Filters
7.8 Compact Filters
7.9 Other Filters

8 Baluns
8.1 Introduction
8.2 Transmission-Line Baluns
8.3 Marchand Baluns
8.4 Broadband Baluns
8.5 Multi-Band Baluns
8.6 Harmonic Suppression in Baluns
8.7 Reconfigurable Baluns
8.8 Compact Baluns

Appendix A Physical Constants and Other Data
Appendix B Units and Symbols
Appendix C Frequency Band Designations
Appendix D Mathematical Relations
Appendix E Decibel Units-dB
Appendix F Substrate Properties @ 10 GHz
Appendix G Return Loss, Insertion Loss, and Related Parameters
Appendix H Characteristics of Various Transmission-Line/Lumped-Element Structures for Filters and Passives
Appendix I Microstrip Line Data