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Article
Measurement-Based Models for Crosstalk Within a Connector Shell
Proceedings of the 2014 IEEE International Symposium on Electromagnetic Compatibility (2014, Raleigh, NC)
  • Guanghua Li
  • Junping He
  • Gary Hess
  • Robert Hoeckele
  • Pete L. Jalbert
  • Thomas Van Doren, Missouri University of Science and Technology
  • Daryl G. Beetner, Missouri University of Science and Technology
Abstract

Crosstalk within cable bundles can degrade system performance. In systems that use shielded twisted-wire pairs, the crosstalk occurs primarily in the connector, where individual signal wires are not shielded or twisted. In many cases, the parameters which determine crosstalk within the connector are unknown, in part because the connector is closed and wires cannot be accessed. A methodology was developed for measuring coupling parameters and modelling crosstalk within the cable connector at low frequencies ( < 300 MHz). The values of mutual inductance and capacitance were extracted from measurements made with a Vector Network Analyzer. Values of self inductance or capacitance within the connector for individual wires were extracted from TDR measurements. The accuracy of the model was evaluated through comparison of simulated and measured results. Tests were performed while varying the wire terminations to modify the dominant coupling mechanism. A further simplified model which only takes into account the mutual coupling was also developed to estimate the envelope of the crosstalk. The simulated results match the measured results well. This simple SPICE model allows effective evaluation of the impact of crosstalk within different connectors.

Meeting Name
2014 IEEE International Symposium on Electromagnetic Compatibility (2014: Aug. 4-8, Raleigh, NC)
Department(s)
Electrical and Computer Engineering
Research Center/Lab(s)
Electromagnetic Compatibility (EMC) Laboratory
Keywords and Phrases
  • Coupling Circuits,
  • Crosstalk,
  • Electromagnetic Coupling,
  • Electromagnetic Modelling,
  • Measurements
International Standard Book Number (ISBN)
978-1-4799-5544-2
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2014 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
Publication Date
9-1-2014
Publication Date
01 Sep 2014
Citation Information
Guanghua Li, Junping He, Gary Hess, Robert Hoeckele, et al.. "Measurement-Based Models for Crosstalk Within a Connector Shell" Proceedings of the 2014 IEEE International Symposium on Electromagnetic Compatibility (2014, Raleigh, NC) Vol. 2014 Iss. September (2014) p. 283 - 288 ISSN: 2158-110X
Available at: http://works.bepress.com/thomas-vandoren/68/