Compact stub type microstrip bandpass filter using defected ground plane

A. Abdel-Rahman*, A. K. Verma, A. Boutejdar, A. S. Omar

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

87 Citations (Scopus)


Usually a defected ground plane structure (DGS) provides only a band-reject response. However, in this work we introduce a simple band-accept circuit element in the DGS and developed a microstrip stub type compact 3-pole bandpass filter (BPF) at 4.2 GHz. The BPF has bandwidth and insertion loss 38% and 0.6 dB respectively. It has better than 25 dB rejection in the stop-band up to 12 GHz.

Original languageEnglish
Pages (from-to)136-138
Number of pages3
JournalIEEE Microwave and Wireless Components Letters
Issue number4
Publication statusPublished - Apr 2004
Externally publishedYes


  • Band-accept
  • Bandpass filter
  • DGS


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