Mode-matching analysis of a shielded rectangular dielectric-rod waveguide

Article

Wells, Colin G. and Ball, James A. R.. 2005. "Mode-matching analysis of a shielded rectangular dielectric-rod waveguide." IEEE Transactions on Microwave Theory and Techniques. 53 (10), pp. 3169-3177. https://doi.org/10.1109/TMTT.2005.855148
Article Title

Mode-matching analysis of a shielded rectangular dielectric-rod waveguide

ERA Journal ID981
Article CategoryArticle
AuthorsWells, Colin G. (Author) and Ball, James A. R. (Author)
Journal TitleIEEE Transactions on Microwave Theory and Techniques
Journal Citation53 (10), pp. 3169-3177
Number of Pages9
Year2005
Place of PublicationPiscataway, NJ. United States
ISSN0018-9480
1557-9670
Digital Object Identifier (DOI)https://doi.org/10.1109/TMTT.2005.855148
Abstract

Rectangular cross-section dielectric waveguides are widely used at millimeter wavelengths. In addition, shielded
dielectric resonators having a square cross-section are often used as filter elements, however there is almost no information available on the effect of the shield. Rectangular or square dielectric waveguide is notoriously difficult to analyze, because of the singular behaviour of the fields at the corners. Most published analyses are for materials with a low dielectric constant, and do not include the effects of a shield.
This paper describes a numerically efficient mode matching method for the analysis of shielded dielectric rod waveguide, which is applicable to both low and high dielectric constant materials. The effect of the shield on the propagation behaviour is studied. The shield dimensions
may be selected such that the shield has a negligible effect, so that results can be compared with free space data. The results are verified by comparison with several sets of published data, and have been confirmed by measurement for a nominal 'e' r of 37.4.

Keywordsdielectric resonators; dielectric waveguides; electromagnetic propagation in nonhomogeneous media; mode-matching methods; shielding; dielectric materials; information analysis; numerical analysis; permittivity; resonators
ANZSRC Field of Research 2020400907. Industrial electronics
400608. Wireless communication systems and technologies (incl. microwave and millimetrewave)
401006. Systems engineering
Public Notes

© 2005 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Byline AffiliationsFaculty of Engineering and Surveying
Department of Electrical, Electronic and Computer Engineering
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