Tunable microstrip quasi-elliptic function bandpass filters

Wenxing Tang, Jia Sheng Hong

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

17 Citations (Scopus)

Abstract

In this paper, a new type of varactor-tuned microstrip quasi-elliptic function bandpass filter based on dual-mode openloop resonator is investigated. By employing the unique characteristic of the dual-mode open-loop resonator, i.e. whose two operating modes (odd-and even-modes) do not couple to each other, tuning the passband frequency becomes simple with a single DC bias circuit. Two finite-frequency transmission zeros on each side of the passband are tunable along with the center frequency, resulting in high selective frequency response. A designed four-pole tunable bandpass filter of this type is demonstrated experimentally. © 2009 EuMA.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2009, EuMW 2009: Science, Progress and Quality at Radiofrequencies, Conference Proceedings - 39th European Microwave Conference, EuMC 2009
Pages767-770
Number of pages4
DOIs
Publication statusPublished - 2009
EventEuropean Microwave Week 2009, EuMW 2009: Science, Progress and Quality at Radiofrequencies - 39th European Microwave Conference, EuMC 2009 - Rome, Italy
Duration: 28 Sep 20092 Oct 2009

Conference

ConferenceEuropean Microwave Week 2009, EuMW 2009: Science, Progress and Quality at Radiofrequencies - 39th European Microwave Conference, EuMC 2009
CountryItaly
CityRome
Period28/09/092/10/09

Keywords

  • Dual-mode resonator filter
  • Microstrip filter
  • Tunable filter

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  • Cite this

    Tang, W., & Hong, J. S. (2009). Tunable microstrip quasi-elliptic function bandpass filters. In European Microwave Week 2009, EuMW 2009: Science, Progress and Quality at Radiofrequencies, Conference Proceedings - 39th European Microwave Conference, EuMC 2009 (pp. 767-770) https://doi.org/10.1109/EUMC.2009.5296313