Slow-wave microstrip lines using ground slots for enhanced impedance control

Kook Joo Lee, Hyung Jin Park, Seung Ho Choi, Moonil Kim

Research output: Contribution to journalArticlepeer-review


Straight microstrip lines alternately loaded with ground slots and open-end stubs are analyzed. Fabricated samples containing slots and stubs with various length combinations demonstrate constant slow-wave factors of 1.7 to 3.0 with negligible amounts of radiation loss and larger characteristic impedance tuning range. A slow-wave bandrejection filter at 1.8 GHz is built for performance comparison with a regular microstrip-line filter. Copyright

Original languageEnglish
Pages (from-to)3632-3634
Number of pages3
JournalIEICE Transactions on Communications
Issue number12
Publication statusPublished - 2010 Dec


  • Ground slot
  • Slow-wave microsrtip

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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