Properties and Numerical Solutions of Dispersion Curves in General Isotropic Waveguides

Author

Dobbelaere, Dieter ; Rogier, Hendrik ; De Zutter, Daniel

Author_Institution

Dept. of Inf. Technol., Ghent Univ., Ghent, Belgium

Volume

61

Issue

9

fYear

2013

fDate

Sept. 2013

Firstpage

3161

Lastpage

3168

Abstract

In this paper, some properties of dispersion curves in general isotropic piecewise homogeneous waveguides are rigorously derived. These properties are leveraged in a numerical implementation capable of determining the dispersion curves of such waveguides with cross-section materials that can be highly conductive (such as copper). In a numerical example, the influence of a lossy shielding conductor on the complex modes of a shielded dielectric image guide is investigated for the first time.

Keywords

conductors (electric); dielectric waveguides; dispersion (wave); numerical analysis; cross-section materials; dielectric image guide; dispersion curve; general isotropic piecewise homogeneous waveguides; general isotropic waveguide; lossy shielding conductor; numerical solution; Dielectrics; Dispersion; Green´s function methods; Integral equations; Materials; Method of moments; Propagation constant; Complex mode; dispersion curve; propagation constant; shielded dielectric image guide; waveguide;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/TMTT.2013.2273760

Filename

6570558