Compact microstrip lowpass filter with sharp roll-off and wide stop-band

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

103 Scopus Citations
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Author(s)

  • J. L. Li
  • S. W. Qu
  • Q. Xue

Detail(s)

Original languageEnglish
Pages (from-to)110-111
Journal / PublicationElectronics Letters
Volume45
Issue number2
Publication statusPublished - 2009

Abstract

A microstrip lowpass filter with enhanced performance is developed. The studied filter is based on a novel patch resonator that features strong slow-wave effects, and can also implement either an improved roll-off or an enhanced stop-band. A demonstrator filter with 3dB cutoff frequency f c=2.4GHz is optimally designed, fabricated and measured. Results indicate that a roll-off of 92.5dB/GHz together with a relative stop-band bandwidth of 135.5 (referred to a 30dB suppression) is obtained while achieving a highest figure-of-merit of 10106. Both simulations and measurements are presented and compared. © The Institution of Engineering and Technology 2009.

Citation Format(s)

Compact microstrip lowpass filter with sharp roll-off and wide stop-band. / Li, J. L.; Qu, S. W.; Xue, Q.
In: Electronics Letters, Vol. 45, No. 2, 2009, p. 110-111.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review