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

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. ISSN 0018-9480

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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.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Copyright 2005 IEEE. Personal use of this material is permitted. This material is posted here with permission of the IEEE. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Faculty / Department / School: Historic - Faculty of Engineering and Surveying - Department of Electrical, Electronic and Computer Engineering
Date Deposited: 11 Oct 2007 00:25
Last Modified: 02 Jul 2013 22:33
Uncontrolled Keywords: dielectric resonators; dielectric waveguides; electromagnetic propagation in nonhomogeneous media; mode-matching methods; shielding; dielectric materials; information analysis; numerical analysis; permittivity; resonators
Fields of Research : 09 Engineering > 0906 Electrical and Electronic Engineering > 090603 Industrial Electronics
10 Technology > 1005 Communications Technologies > 100505 Microwave and Millimetrewave Theory and Technology
09 Engineering > 0915 Interdisciplinary Engineering > 091599 Interdisciplinary Engineering not elsewhere classified
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1109/TMTT.2005.855148

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