volume | PIER Journals

2006-07-29

Minimizing Crosstalks in Unshielded Twisted-Pair Cables by Using Electromagnetic Topology Techniques

Phumin Kirawanich,

Dr. Phumin Kirawanich

Department of Electrical and Computer Engineering

University of Missouri-Columbia

USA

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J. Wilson,

Dr. J. Wilson

Department of Electrical and Computer Engineering

University of Missouri-Columbia

USA

Homepage

Naz E. Islam,

Professor Naz E. Islam

Department of Electrical and Computer Engineering

University of Missouri-Columbia

USA

Homepage

Susumu Yakura

Dr. Susumu Yakura

Air Force Research Laboratory

USA

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, Vol. 63, 125-140, 2006

doi:10.2528/PIER06042603

Abstract

Crosstalk reduction is analyzed for a reconfigured category-five cable network using electromagnetic topology-based simulation. The reconfigured network results in a marked reduction in inductive near-end crosstalk for the unshielded twisted-pair cable network. Analyses show that half-loop shifting of the generator-pair wires placed next to the receptor is the most effective way to control the near-end crosstalk level. This is primarily due to additional coupling sources induced on receptor wires that effectively deactivate the original cross coupling effect. The analysis also reveals the usefulness of electromagnetic topology-based simulations. The technique applied in this paper is applicable for any large network systems. A sub-network compaction scheme is critical in creating the equivalent junctions that provide a significant reduction in total computational time and total computer memory requirement for analyzing large network systems. For a 5.28-m long cable we have considered in this paper, the results are valid up to 10 MHz.

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Phumin Kirawanich, J. Wilson, Naz E. Islam, and Susumu Yakura, "Minimizing Crosstalks in Unshielded Twisted-Pair Cables by Using Electromagnetic Topology Techniques," , Vol. 63, 125-140, 2006.
doi:10.2528/PIER06042603

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