Modeling and analysis of a long thin conducting stripline

D.J. Bekers, S.J.L. Eijndhoven, van, A.A.F. Ven, van de

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Abstract

Abstract A long thin conducting stripline embedded in a dielectric and centered between two large conducting plates, i.e., the stripline environment, is considered. The stripline is modeled as infinitely long, infinitely thin, and perfectly conducting by first considering a stripline of finite length, thickness, and conductivity in a dielectric layer. Starting from Maxwell's equations and assuming that the current on the stripline is a propagating wave in length direction, asymptotic expressions for the fields inside and in the neighbourhood of the stripline are deduced. These expressions are used to model the stripline in the stripline environment, which leads to a boundary-value problem for the electric potential. This problem is solved by two different approaches, leading to integral equations for the current and for an auxiliary function describing the electric potential. A relation between the current and the auxiliary function is deduced, which is used to obtain asymptotic expressions for current and impedance. Results are compared with a numerical solution of the integral equation for the current and with results in literature. Keywords current distribution, impedance, perfect conduction, skin depth, stripline
Original languageEnglish
Pages (from-to)373-390
JournalJournal of Engineering Mathematics
Volume49
Issue number4
DOIs
Publication statusPublished - 2004

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