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Fundamentals of Open-Ended Resonators and Their Application to Microwave Filters

Kouji WADA, Osamu HASHIMOTO

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Summary :

The aim of this study is to examine the effectiveness of various open-ended resonators. According to the required filter responses, the application to microwave filters based on presented open-ended resonators is systematically examined as well. First, the resonance property of the basic open-ended resonator is discussed based on even-and odd-mode analysis. The intrinsic property of a tapped open-ended resonator is also discussed here. Second, the basic properties of a stepped impedance resonator (SIR) and a loaded-element resonator are examined theoretically for improvement of spurious responses and the dual-passband response. The basic operations of these resonators are also explained based on even- and odd-mode analysis. Examples for filter applications based on presented resonators are also provided. We found that the intrinsic properties of the open-ended resonators are very useful for practical filter responses.

Publication
IEICE TRANSACTIONS on Electronics Vol.E83-C No.11 pp.1763-1775
Publication Date
2000/11/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Microwaves, Millimeter-Waves

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