A new coplanar waveguide bandpass filter using interdigital DGS

Jae Kwan Lee, Young Sik Kim

Research output: Contribution to journalArticlepeer-review


In this letter, a new bandpass filter (BPF) with coplanar waveguide using interdigital capacitor and interdigital defected ground structure is proposed. The proposed BPF size is reduced about 33% compared to the BPF using a conventional DGS one. Both filters have lower and higher cutoff frequency at about 1.4 and 2.4 GHz. The measured results are well agreed with the simulation ones.

Original languageEnglish
Pages (from-to)2915-2917
Number of pages3
JournalMicrowave and Optical Technology Letters
Issue number12
Publication statusPublished - 2009 Dec


  • Bandpass filter
  • Defected ground structure
  • Interdigital defected ground structure

ASJC Scopus subject areas

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


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