Frequency response control in frequency-tunable bandstop filters

Ju Seop Lee, Eric J. Naglich, William J. Chappell

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

This letter presents a tunable bandstop filter with the capability of controlling the shape of the frequency response. The proposed filter structure can be tuned to have either a Butterworth or a Chebyshev response. The filter can also be tuned to have different center frequencies. Both the frequency response and the center frequency of the filter can be tuned by only adjusting the resonant frequency of each resonator without controlling inter-resonator coupling. Since the proposed filter structure has non-zero inter-resonator coupling, it can find its future application in reconfigurable filters which can be tuned to exhibit either a bandstop or a bandpass response.

Original languageEnglish
Article number5613953
Pages (from-to)669-671
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Volume20
Issue number12
DOIs
Publication statusPublished - 2010 Dec 1
Externally publishedYes

Fingerprint

bandstop filters
Notch filters
frequency response
Frequency response
Resonators
filters
resonators
Natural frequencies
resonant frequencies
adjusting

Keywords

  • Bandstop filter
  • Butterworth filter
  • Chebyshev filter
  • filter synthesis
  • resonator filter

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Frequency response control in frequency-tunable bandstop filters. / Lee, Ju Seop; Naglich, Eric J.; Chappell, William J.

In: IEEE Microwave and Wireless Components Letters, Vol. 20, No. 12, 5613953, 01.12.2010, p. 669-671.

Research output: Contribution to journalArticle

Lee, Ju Seop ; Naglich, Eric J. ; Chappell, William J. / Frequency response control in frequency-tunable bandstop filters. In: IEEE Microwave and Wireless Components Letters. 2010 ; Vol. 20, No. 12. pp. 669-671.
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