Lonngren, Karl E. Department of Electrical and Computer Engineering, University of Iowa, Iowa City, Iowa.
Phadke, Arun G. Center for Power Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia.
Last reviewed:June 2020
- Coaxial cables and strip lines
- Circuit model
- Telegraphist's equations
- Wave equation
- Signal propagation
- Characteristic impedance
- Standing waves
- Impedance matching
- Fault location
- Power transmission lines
- Related Primary Literature
- Additional Reading
A system of conductors suitable for conducting electric power or signals between two or more termini. Transmission lines take many forms in practice and have application in many disciplines. For example, they traverse the countryside, carrying telephone signals and electric power. The same transmission lines, with similar functions, may be hidden above false ceilings in urban buildings. With the need to reliably and securely transmit ever larger amounts of data, the required frequency of operation has increased from the high-frequency microwave range to the still higher frequency of light. Optical fibers are installed in data-intensive buildings and form a nationwide network. Increasing demand also requires that transmission lines handle greater values of electric power.
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