Partial capacitance calculation for shielded twisted pair cables

Author

Gavrilakis, A. ; Duffy, A.P. ; Hodge, K.G. ; Willis, A.J.

Author_Institution

Dept. of Eng. & Technol., De Montfort Univ., Leicester, UK

Volume

46

Issue

2

fYear

2004

fDate

5/1/2004 12:00:00 AM

Firstpage

299

Lastpage

302

Abstract

This brief presents a method for the calculation of the capacitance of shielded twisted pair cables. The method presented allows the adoption of a realistic geometry of the shield in the analysis and does not limit the analysis to nonpractical geometrical primitives. The analysis is based on the combination of partial capacitances obtained through two-conformal mappings and by making a simple assumption on part of the geometry combined with the use of potentials. Comparisons with measurements, simulations, and with an analytical model deriving the capacitance for the pair in a cylindrical shield demonstrate a high level of agreement.

Keywords

cable shielding; capacitance; conformal mapping; electromagnetic shielding; twisted pair cables; conformal mappings; cylindrical shield; partial capacitance; realistic geometry; shielded twisted pair cables; Algorithm design and analysis; Analytical models; Cable shielding; Capacitance; Coaxial components; Conductors; Dielectrics; Frequency; Geometry; Shape; Capacitance; conformal mappings; twisted-pair cables;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/TEMC.2004.826883

Filename

1300769