A compact low-pass filter with double-step impedance shunt stub and defected ground structure for wideband rejection

Jae Kwan Lee, Dong Hyo Lee, Young Sik Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)


In this letter, a compact low-pass filter (LPF) with wideband rejection using double-step impedance shunt stub (SISS) and barbell-type defected ground structure (DGS) is presented. This proposed LPF has similar characteristics in bandwidth, but good wideband rejection and cutoff sharpness compared with the same size conventional LPF, using SISS and conventional DGS. The size reduction of the proposed LPF is about 23% more than the conventional one. Good agreements are achieved between the simulated and measured results.

Original languageEnglish
Pages (from-to)132-134
Number of pages3
JournalMicrowave and Optical Technology Letters
Issue number1
Publication statusPublished - 2010 Jan 1



  • Barbelltype defected ground structure
  • Conventional defected ground structure
  • Double-step impedance shunt stub
  • Low pass filter
  • Step impedance shunt stub

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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