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http://dx.doi.org/10.6109/jkiice.2011.15.8.1653

Miniaturized Microstrip Dual Band-Stop Filter Using Stepped Impedance Resonators  

Kim, Gi-Rae (신라대학교 전자공학과)
Park, Young-Bae (신라대학교 전자공학과)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.15, no.8, 2011 , pp. 1653-1658 More about this Journal
Abstract
A novel circuit structure of dual-band bandstop filters is proposed in this paper. This structure comprises two shunt-connected tri-section stepped impedance resonators with a transmission line in between. Theoretical analysis from the equivalent circuit and design procedures are described. We represented graphs for filter design from the derived synthesis equations by resonance condition of circuits. Notably, advantages of the proposed filter structure are compact size in design, wide range of realizable resonance frequency ratio, and more realizable impedances.
Keywords
dual-band bands-stop filter; tri-section steeped impedance resonators;
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