Asymmetric Passive Components in Microwave Integrated Circuits

This book examines the new and important technology of asymmetric passive components for miniaturized microwave passive circuits. The asymmetric design methods and ideas set forth by the author are groundbreaking and have not been treated in previous works. Readers discover how these design methods reduce the circuit size of microwave integrated circuits and are also critical to reducing the cost of equipment such as cellular phones, radars, antennas, automobiles, and robots. An introductory chapter on the history of asymmetric passive components, which began with asymmetric ring hybrids first described by the author, sets the background for the book. It lays a solid foundation with a chapter examining microwave circuit parameters such as scattering, ABCD, impedance, admittance, and image. A valuable feature of this chapter is a conversion table between the various circuit matrices characterizing two-port networks terminated in arbitrary impedances. The correct conversion has also never been treated in previous works. Next, the author sets forth a thorough treatment of asymmetric passive component design, which covers the basic and indispensable elements for integration with other active or passive devices, including: * Asymmetric ring hybrids * Asymmetric branch-line hybrids * Asymmetric three-port power dividers and N-way power dividers * Asymmetric ring hybrid phase shifters and attenuators * Asymmetric ring filters and asymmetric impedance transformers With its focus on the principles of circuit element design, this is a must-have graduate-level textbook for students in microwave engineering, as well as a reference for design engineers who want to learn the new and powerful design method for asymmetric passive components.

This book examines the new and important technology of asymmetricpassive components for miniaturized microwave passive circuits. Theasymmetric design methods and ideas set forth by the author aregroundbreaking and have not been treated in previous works. Readersdiscover how these design methods reduce the circuit size ofmicrowave integrated circuits and are also critical to reducing thecost of equipment such as cellular phones, radars, antennasautomobiles, and robots.An introductory chapter on the history of asymmetric passivecomponents, which began with asymmetric ring hybrids firstdescribed by the author, sets the background for the book. It laysa solid foundation with a chapter examining microwave circuitparameters such as scattering, ABCD, impedance, admittance, andimage. A valuable feature of this chapter is a conversion tablebetween the various circuit matrices characterizing two-portnetworks terminated in arbitrary impedances. The correct conversionhas also never been treated in previous works.Next, the author sets forth a thorough treatment of asymmetricpassive component design, which covers the basic and indispensableelements for integration with other active or passive devicesincluding:* Asymmetric ring hybrids* Asymmetric branch-line hybrids* Asymmetric three-port power dividers and N-way powerdividers* Asymmetric ring hybrid phase shifters and attenuators* Asymmetric ring filters and asymmetric impedancetransformersWith its focus on the principles of circuit element design, this isa must-have graduate-level textbook for students in microwaveengineering, as well as a reference for design engineers who wantto learn the new and powerful design method for asymmetric passivecomponents.

Preface.1. Introduction.1.1 Asymmetric Passive Components.1.2 Circuit Parameters.1.3 Asymmetric Four-Port Hybrids.1.4 Asymmetric Three-Port Power Dividers.1.5 Asymmetric Two-Port Components.References.2. Circuit Parameters.2.1 Scattering Matrix.2.2 Scattering Parameters of Reduced Multiports.2.3 Two-Port Network Analysis Using Scattering Parameters.2.4 Other Circuit Parameters.2.5 Analyses of Symmetric Networks.2.6 Analyses with Image Parameters.Exercises.References.3. Conventional Ring Hybrids.3.1 Introduction.3.2 Original Concept of the 3-dB Ring Hybrid.3.3 Conventional Ring Hybrids.3.4 Conventional 3-dB Uniplanar Ring Hybrids.Exercises.References.4. Asymmetric Ring Hybrids.4.1 Introduction.4.2 Derivation of Design Equations of Asymmetric RingHybrids.4.3 Small Asymmetric Ring Hybrids.4.4 Wideband or Small Asymmetric Ring Hybrids.4.5 Miniaturized Ring Hybrids Terminated in ArbitraryImpedances.Exercises.References.5. Asymmetric Branch-Line Hybrids.5.1 Introduction.5.2 Origin of Branch-Line Hybrids.5.3 Multisection Branch-Line Couplers.5.4 Branch-Line Hybrids for Impedance Transforming.5.5 Asymmetric Four-Port Hybrids.Exercises.References.6. Conventional Three-Port Power Dividers.6.1 Introduction.6.2 Three-Port 3-dB Power Dividers.6.3 Three-Port Power Dividers with Arbitrary PowerDivisions.6.4 Symmetric Analyses of Asymmetric Three-Port PowerDividers.6.5 Three-Port 3-dB Power Dividers Terminated in ComplexFrequency-Dependent Impedances.6.6 Three-Port 45 Power Divider/Combiner.Exercises.References.7. Three-Port 3-dB Power Dividers Terminated in DifferentImpedances.7.1 Introduction.7.2 Perfect Isolation Condition.7.3 Analyses.7.4 Scattering Parameters of Three-Port Power Dividers.7.5 Lumped-Element Three-Port 3-dB Power Dividers.7.6 Coplanar Three-Port 3-dB Power Dividers.Exercises.References.8. General Design Equations for N-Way Arbitrary PowerDividers.8.1 Introduction.8.2 General Design Equations for Three-Port Power Dividers.8.3 General Design Equations for N-Way PowerDividers.Exercises.References.9. Asymmetric Ring-Hybrid Phase Shifters andAttenuators.9.1 Introduction.9.2 Scattering Parameters of Asymmetric Ring Hybrids.9.3 Asymmetric Ring-Hybrid Phase Shifters.9.4 Asymmetric Ring-Hybrid Attenuator with Phase Shifts.Exercises.References.10. Ring Filters and Their Use in a New Measurement Techniquefor Inherent Ring-Resonance Frequency.10.1 Introduction.10.2 Ring Filters.10.3 New Measurement Technique for Inherent Ring-ResonanceFrequency.10.4 Conclusions.Exercises.References.11. Small Impedance Transformers, CVTs and CCTs, and TheirApplications to Small Power Dividers and Ring Filters.11.1 Small Transmission-Line Impedance Transformers.11.2 Mathematical Approach for CVTs and CCTs.11.3 CVT3PDs and CCT3PDs.11.4 Asymmetric Three-Port 45 Power Divider Terminated inArbitrary Impedances.11.5 CVT and CCT Ring Filters.11.5.1 Analyses of Ring Filters.Exercises.References.Appendix A: Symbols and Abbreviations.Appendix B: Conversion Matrices.Appendix C: Derivation of the Elements of a Small AsymmetricRing Hybrid.Appendix D: Trigonometric Relations.Appendix E: Hyperbolic Relations.Index.