Compact wideband DGS lowpass filter with modified microstripline

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)974-977
Journal / PublicationMicrowave and Optical Technology Letters
Issue number4
Publication statusPublished - Apr 2008


A compact microwave lowpass filter with three transmission zeros is designed using the defected ground structure (DGS). The microstripline section above the DGS region is modified to obtain remarkable slow-wave and bandgap effects. An equivalent lumped L-C circuit model is presented. Reasonable agreement among the simulated, modeled, and measured results is obtained. © 2008 Wiley Periodicals, Inc.

Research Area(s)

  • Circuit modeling, Defected ground structure (DGS), Slow-wave effect