Tri-section stepped-impedance resonators for design of dual-band bandstop filter

Chih Kang Lung*, Kuo Sheng Chin, Jeffrey S. Fu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

28 Scopus citations

Abstract

In this paper, we present the dual-band bandstop filter design using tri-section stepped-impedance resonators. The proposed tri-section stepped-impedance resonator has the features of dual-band and size reduction due to its nonuniform impedance characteristic. There are two degrees of freedom in the proposed synthesis equations, which can be used for circuit miniaturization and changing impractical impedances into more realizable ones. An experimental bandstop filter was verified by circuit implementation. It showed good agreement between the simulated and measured results. Compared with the conventional parallel-connected λ/4 stubs, the proposed trisection stepped-impedance structures can achieve more than 23.6% size reduction.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2009, EuMW 2009
Subtitle of host publicationScience, Progress and Quality at Radiofrequencies, Conference Proceedings - 39th European Microwave Conference, EuMC 2009
Pages771-774
Number of pages4
DOIs
StatePublished - 2009
EventEuropean Microwave Week 2009, EuMW 2009: Science, Progress and Quality at Radiofrequencies - 39th European Microwave Conference, EuMC 2009 - Rome, Italy
Duration: 28 09 200902 10 2009

Publication series

NameEuropean Microwave Week 2009, EuMW 2009: Science, Progress and Quality at Radiofrequencies, Conference Proceedings - 39th European Microwave Conference, EuMC 2009

Conference

ConferenceEuropean Microwave Week 2009, EuMW 2009: Science, Progress and Quality at Radiofrequencies - 39th European Microwave Conference, EuMC 2009
Country/TerritoryItaly
CityRome
Period28/09/0902/10/09

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