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Resonance absorption in single and cascaded lossy waveguide-dielectric resonators

✍ Scribed by Lyudmila B. Minakova; Leonid A. Rud

Book ID
102519034
Publisher
John Wiley and Sons
Year
2002
Tongue
English
Weight
128 KB
Volume
36
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

An approximate theory of lossy waveguide‐dielectric resonators (WDRs) is developed. The theory is based on a search for the resonator's natural oscillations providing the required ratio between the radiation and intrinsic Q factors. This allows us to predict and control the level of absorbed power by changing the oscillation coupling or loss coefficient. The theory's limitations and validity are verified by a comparison with the exact numerical results obtained for the resonators, which are formed by rectangular dielectric posts and partially filled H‐plane stubs in a rectangular waveguide. Potential applications of the developed theory for the design of narrowband absorption filters are demonstrated. Β© 2002 Wiley Periodicals, Inc. Microwave Opt Technol Lett 36: 122–126, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10694

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