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.
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2 Circuit Parameters
3 Conventional Ring Hybrids
4 Asymmetric Ring Hybrids
5 Asymmetric BranchLine Hybrids
6 Conventional ThreePort Power Dividers
7 ThreePort 3dB Power Dividers Terminated in Different Impedances
8 General Design Equations for NWay Arbitrary Power Dividers
10 Ring Filters and Their Use in a New Measurement Technique for Inherent RingResonance Frequency
11 Small Impedance Transformers CVTs and CCTs and Their Applications to Small Power Dividers and Ring Filters
Appendix A Symbols and Abbreviations
Appendix B Conversion Matrices
Appendix C Derivation of the Elements of a Small Asymmetric Ring Hybrid
Appendix D Trigonometric Relations
Appendix E Hyperbolic Relations
9 Asymmetric RingHybrid Phase Shifters and Attenuators
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3-dB Power Divider ABCD parameters admittance matrix admittance parameters amplitude arbitrary impedances arbitrary power divisions Arbitrary Termination Impedances asymmetric ring hybrid attenuators bandwidth Broad-Band characteristic impedances circuit in Fig coplanar coupled transmission lines CVT3PD CVTs and CCTs deﬁned depicted in Fig derived design equations different impedances directional coupler electrical length equal power division even-mode excited at port ﬁeld FIGURE ﬁrst ﬂow Frequency GHz hybrid in Fig Hybrid Ring IEEE MTT-S IEEE Trans image impedance impedance matrix input Integrated Circuits IRE Trans microstrip Microwave Integrated Circuits Microwave Theory Tech MMIC odd-mode equivalent circuit odd-mode excitation Passive Components phase shifter port Q power divider terminated power-split ratio reference impedance reﬂection coefﬁcients return losses ring ﬁlters ring-hybrid phase shifters scattering matrix scattering parameters shown in Fig simulation results Smith chart Table terminated in arbitrary Three-Port 3-dB Power three-port power divider transmission-line sections two-port network uniplanar voltage wideband Wolff