Electromagnetic modeling of waveguides involving finite-size dielectric regions

Author

Rubin, Barry J.

Author_Institution

IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA

Volume

38

Issue

6

fYear

1990

fDate

6/1/1990 12:00:00 AM

Firstpage

807

Lastpage

812

Abstract

A moment method for handling arbitrarily shaped 2-D and 3-D waveguides that involve either conductors, finite-size dielectric regions, or both is presented. A procedure for modeling the dielectric allows 2-D rooftop functions to represent both the 3-D polarization current in the dielectric and the surface current on the conductors, and precludes the presence of fictitious charge within the dielectric. Examples include coaxial, microstrip, and dielectric waveguides. Numerical convergence, consistency with physical principles, and agreement with the literature are demonstrated

Keywords

dielectric waveguides; strip lines; waveguide theory; 2-D rooftop functions; 2-D waveguides; 3-D polarization current; 3-D waveguides; EM modelling; coaxial; dielectric waveguides; finite-size dielectric regions; microstrip; moment method; numerical convergence; surface current; Coaxial components; Conductors; Convergence of numerical methods; Dielectrics; Electromagnetic modeling; Electromagnetic waveguides; Green function; Moment methods; Polarization; Scattering;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.130984

Filename

130984