Title :
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
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;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2013.2273760
