Electromagnetic analysis of a two-wire transmission line of parallel cylinders of unequal radii with dielectric coating

Author

Das, B.N. ; Chakrabarty, S.B. ; Mallick, A.K.

Author_Institution

Dept. of Electron. & Electr. Commun. Eng., Indian Inst. of Technol., Kharagpur, India

Volume

142

Issue

4

fYear

1995

fDate

7/1/1995 12:00:00 AM

Firstpage

288

Lastpage

292

Abstract

The paper presents a method for the evaluation of capacitance, characteristic impedance and velocity of propagation of a dielectric-coated two-wire transmission line of parallel cylinders of unequal radii under TEM mode approximation. A conformal transformation is used to transform the conductor and dielectric boundaries to appropriate contours extending over a fixed region along the imaginary axis in the transformed plane. Approximating the continuous curve obtained through transformation of dielectric boundaries by a very large number of discrete steps, the expression for the capacitance is derived in the form of a definite integral. Numerical data on capacitance, characteristic impedance, velocity of propagation in the absence and presence of a perfectly conducting ground plane are presented

Keywords

capacitance; transmission line theory; TEM mode approximation; capacitance; characteristic impedance; conductor; conformal transformation; dielectric boundaries; dielectric coating; electromagnetic analysis; ground plane; parallel cylinders; propagation velocity; two-wire transmission line;

fLanguage

English

Journal_Title

Science, Measurement and Technology, IEE Proceedings -

Publisher

iet

ISSN

1350-2344

Type

jour

DOI

10.1049/ip-smt:19951943

Filename

401278