Frequency-Tunable Substrate-Integrated Waveguide Filter using Contactless Rotatable Flaps

Seunggoo Nam, Boyoung Lee, Ju Seop Lee

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

Abstract

This paper introduces a substrate-integrated waveguide (SIW) filter that can be tuned using contactless rotatable flaps. There is no mechanical contact between the tuning flaps and the filter body, and this gives a number of advantages in frequency tuning since the flaps do not experience any friction. In addition, it can be tuned with little power consumption, while maintaining stability. Periodic mushroom shaped pins are formed in the flap so that the field generated in the resonator does not leak. Therefore, the Q-factor of the resonator does not decrease even though the flaps are floating in the air. A third-order SIW filter was fabricated and measured for verification. The center frequency is from 2.66 GHz to 3.34 GHz and the insertion loss varies from 0.79 dB to 0.88 dB.

Original languageEnglish
Title of host publication2019 IEEE MTT-S International Microwave Symposium, IMS 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages842-845
Number of pages4
ISBN (Electronic)9781728113098
Publication statusPublished - 2019 Jun 1
Event2019 IEEE MTT-S International Microwave Symposium, IMS 2019 - Boston, United States
Duration: 2019 Jun 22019 Jun 7

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2019-June
ISSN (Print)0149-645X

Conference

Conference2019 IEEE MTT-S International Microwave Symposium, IMS 2019
CountryUnited States
CityBoston
Period19/6/219/6/7

Keywords

  • bandpass filter
  • reconfigurable filter
  • SIW filter
  • tunable filter

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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  • Cite this

    Nam, S., Lee, B., & Lee, J. S. (2019). Frequency-Tunable Substrate-Integrated Waveguide Filter using Contactless Rotatable Flaps. In 2019 IEEE MTT-S International Microwave Symposium, IMS 2019 (pp. 842-845). [8700851] (IEEE MTT-S International Microwave Symposium Digest; Vol. 2019-June). Institute of Electrical and Electronics Engineers Inc..