Book contents
- Transmission Lines
- Transmission Lines
- Copyright page
- Epigraph
- Contents
- Preface to the First Edition
- Preface to the Second Edition
- 1Pulses on Transmission Lines
- 2Sine Waves and Networks
- 3Coupled Transmission Lines and Circuits
- 4Transmission Lines and Electromagnetism
- 5Guided Electromagnetic Waves
- 6Attenuation in Transmission Lines
- 7Plane Waves and Transmission Lines
- 8The Role of Photons in Transmission Line Circuits
- Index
- References
3 - Coupled Transmission Lines and Circuits
Published online by Cambridge University Press: 05 June 2026
Book contents
- Transmission Lines
- Transmission Lines
- Copyright page
- Epigraph
- Contents
- Preface to the First Edition
- Preface to the Second Edition
- 1Pulses on Transmission Lines
- 2Sine Waves and Networks
- 3Coupled Transmission Lines and Circuits
- 4Transmission Lines and Electromagnetism
- 5Guided Electromagnetic Waves
- 6Attenuation in Transmission Lines
- 7Plane Waves and Transmission Lines
- 8The Role of Photons in Transmission Line Circuits
- Index
- References
Summary
This chapter is concerned with the coupling that can occur between two adjacent transmission lines. Using an equivalent circuit for coupled lines, the parameters of mutual capacitance and inductance are introduced. The analysis shows that the propagation now involves two coupled modes. The following examples cover pulses on coupled lines. After that, there is an analysis of resistive terminations for coupled lines which shows that these may cause coupling between the modes and this is illustrated in more examples. The theory of multiple junctions comes next with its links to Kirchhoff’s law. The chapter ends with analysis of classic transmission line circuits starting with directional couplers and their use to make various filters followed by the analysis in the frequency domain of the Wilkinson power divider and the hybrid or mixer ring.
Information
- Type
- Chapter
- Information
- Transmission LinesEquivalent Circuits, Electromagnetic Theory, and Photons, pp. 87 - 123Publisher: Cambridge University PressPrint publication year: 2026
References
3.7 Further Reading
Ramo, S., Whinnery, J. R. and Van Duzer, T. Fields and Waves in Communication Electronics, Third edition, New York, Wiley, 1993. Chapter 11, section 11.10.Google Scholar
Matthaei, G., Young, L. and Jones, E. M. T. Microwave Filters, Impedance-Matching Networks, and Coupling Structures, New York, Artech House, 1980.Google Scholar
Sander, K. F. Microwave Components and Systems, New York, Addison-Wesley, 1987. Chapter 5.Google Scholar
Paul, C. R. Transmission Lines in Digital and Analogue Electronic Systems, New York, Wiley, 2010.CrossRefGoogle Scholar
Collin, R. E. Foundations for Microwave Engineering, New York, McGraw-Hill, 1992. Chapter 6, sections 6.4 to 6.6.Google Scholar
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