Octave tunable lumped-element notch filter with resonator-Q-independent zero reflection coefficient

Tsung Chieh Lee, Ju Seop Lee, Eric J. Naglich, Dimitrios Peroulis

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

19 Citations (Scopus)

Abstract

A bandstop filter architecture with small form factor and very large attenuation over an octave frequency tuning range is demonstrated. The architecture provides a benefit of resonator-Q-independent zero reflection coefficient at the center frequency, and is demonstrated with a tuning range of 55.04 to 133.34 MHz varactor-tuned two-resonator notch filter with minimum notch attenuation of 64 dB, 3-dB fractional bandwidth (FBW) of 10.86% to 3.22% over the tunable frequency range and passband up to 356.5 MHz, resulting in a 6.48-to-1 upper passband, in a footprint of 2.27×1.65 cm2. The unloaded quality factor (Q-factor) was extracted to be 62 at 133.34 MHz.

Original languageEnglish
Title of host publicationIEEE MTT-S International Microwave Symposium Digest
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781479938698
DOIs
Publication statusPublished - 2014 Jan 1
Event2014 IEEE MTT-S International Microwave Symposium, IMS 2014 - Tampa, FL, United States
Duration: 2014 Jun 12014 Jun 6

Other

Other2014 IEEE MTT-S International Microwave Symposium, IMS 2014
CountryUnited States
CityTampa, FL
Period14/6/114/6/6

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Radiation
  • Condensed Matter Physics

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    Lee, T. C., Lee, J. S., Naglich, E. J., & Peroulis, D. (2014). Octave tunable lumped-element notch filter with resonator-Q-independent zero reflection coefficient. In IEEE MTT-S International Microwave Symposium Digest [6848573] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/MWSYM.2014.6848573