Basic EMC (Electromagnetic Compatibility) Technology Advancement for C3 Systems. Volume 4E. Modeling of Transmission Lines: A Comparison of Lumped-Circuit Iterative Models and the Transmission Line Model
Abstract
A comparison between the predictions of various lumped-circuit iterative models of transmission lines and that of the transmission line model is given for both the two and three-conductor cases. For frequencies such that the line length is approximately 1/10 of a wavelength or less one section of the lumped-circuit models yield predictions which are within +3dB of the transmission line model predictions, and which are essentially independent of the value of load impedance. For frequencies where the line length is greater than approximately 1/10 of a wavelength, more than one section of the lumped models must be used to yield accurate predictions, but the prediction accuracy may be significantly effected by the load impedance value. The range of accurate predictions (in terms of electrical length) may be increased by adding more sections of a lumped-circuit model, but this range increases in a nonlinear fashion. Because of this nonlinear relationship, it is difficult to find a satisfactory method for estimating the number of sections of a particular lumped-circuit model that must be used in order to obtain a desired range of accurate predictions. Originator-supplied keywords include: Electromagnetic compatibility; Cable coupling; Transmission lines, Crosstalk, Computer modeling.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1984
- Accession Number
- ADA150652
Entities
People
- Clayton R. Paul
- Woodrow W. Everett Iii.