DocumentCode
1329670
Title
Mode charts for confocal annular elliptic resonators
Author
Alhargan, F.A. ; Judah, S.R.
Author_Institution
Res. Inst. of Comput. & Electron., Riyadh, Saudi Arabia
Volume
143
Issue
4
fYear
1996
fDate
8/1/1996 12:00:00 AM
Firstpage
358
Lastpage
360
Abstract
Confocal annular elliptic resonators (CAER) have some useful properties and are used in the design of patch antennas and multiport microstrip junctions. The paper presents charts for several modes of the CAER using a new normalisation technique, relating the wavenumbers of the annular ring to the annular ellipse and the ratio of the outer and inner eccentricities. This normalisation reveals a virtually linear behaviour, thus easing the evaluation of the resonant frequencies for a CAER with any given outer and inner eccentricity. Comparison between experimental and theoretical results show good agreement
Keywords
cavity resonators; microstrip antennas; microstrip couplers; annular ellipse; annular ring; confocal annular elliptic resonators; experimental results; linear behaviour; multiport microstrip junctions; normalisation technique; outer to inner eccentricity ratio; patch antenna design; resonant frequencies; wavenumbers;
fLanguage
English
Journal_Title
Microwaves, Antennas and Propagation, IEE Proceedings
Publisher
iet
ISSN
1350-2417
Type
jour
DOI
10.1049/ip-map:19960539
Filename
533200
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