Compact low pass Bessel filter using microstrip DGS structure

Ashwani Kumar*, A. K. Verma

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

7 Citations (Scopus)

Abstract

We report the design and performance of 5th order DGS based Bessel type LPF with 3 dB cut-off frequency at 2.5 GHz. It significantly improves the cut-off performance of the lumped element based Bessel type LPF. The sharpness of pass cut-off of the DGS based Bessel filter is comparable to that of the sharpness of the Butterworth kind LPF. The frequency range of 10 dB return loss of the DGS based Bessel LPF is 1.91 GHz as against 0.8 GHz for the lumped element based Bessel LPF. The variation in group delay of the DGS based Bessel LPF in pass-band is 42.8 ps; whereas the DGS based Chebyshev and Butterworth LPF have group delays 277 ps and 120 ps respectively.

Original languageEnglish
Title of host publication2010 Asia-Pacific Microwave Conference Proceedings, APMC 2010
Place of PublicationTokyo, Japan
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1189-1192
Number of pages4
ISBN (Print)9784902339222
Publication statusPublished - 2010
Event2010 Asia-Pacific Microwave Conference, APMC - 2010 - Yokohama, Japan
Duration: 7 Dec 201010 Dec 2010

Other

Other2010 Asia-Pacific Microwave Conference, APMC - 2010
CountryJapan
CityYokohama
Period7/12/1010/12/10

Keywords

  • Defected Ground Structure
  • Group Delay
  • Low Pass Filter
  • Planar Filter

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