Quarter-wave stepped-impedance resonator filters with quadruplet and canonical form responses

Jhe Ching Lu*, Chi-Yang Chang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

In this paper, compact microstrip quarter-wave stepped-impedance resonator (SIR) bandpass filters with quadruplet and canonical form responses are proposed. The proposed quadruplet filter can be designed to have a pair of transmission zeros to achieve sharp selectivity. In addition, by applying an extra source-load coupling, two additional transmission zeros on both side of passband are created to further enhance the selectivity. Because the quarter-wave SIRs are adopted, the circuit size of the filters can be largely reduced and the upper stopband can be extended. Two generalized Chebyshev filters corresponding to quadruplet and canonical form coupling schemes are fabricated. Simulated and measured results are matched very well.

Original languageEnglish
Title of host publicationProceedings of the 38th European Microwave Conference, EuMC 2008
Pages504-507
Number of pages4
DOIs
StatePublished - 1 Dec 2008
Event38th European Microwave Conference, EuMC 2008 - Amsterdam, Netherlands
Duration: 27 Oct 200831 Oct 2008

Publication series

NameProceedings of the 38th European Microwave Conference, EuMC 2008

Conference

Conference38th European Microwave Conference, EuMC 2008
CountryNetherlands
CityAmsterdam
Period27/10/0831/10/08

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  • Cite this

    Lu, J. C., & Chang, C-Y. (2008). Quarter-wave stepped-impedance resonator filters with quadruplet and canonical form responses. In Proceedings of the 38th European Microwave Conference, EuMC 2008 (pp. 504-507). [4751499] (Proceedings of the 38th European Microwave Conference, EuMC 2008). https://doi.org/10.1109/EUMC.2008.4751499