An accurate tuning method for dual-mode cavity filters

Juseop Lee, Man Seok Uhm, In Bok Yom, Seong Pal Lee

Research output: Contribution to journalArticlepeer-review


An accurate tuning method using a short-ended dummy cavity is presented for dual-mode cavity filters. Tuning is based on the match of the computed and measured phase responses of the reflection coefficient. An equivalent circuit model is adopted for computing the required phase response of the reflection coefficient. This method is applied to a 4-pole longitudinal dual-mode filter for demonstration. Good agreement is found between the experimental and computed responses.

Original languageEnglish
Pages (from-to)123-125
Number of pages3
JournalMicrowave and Optical Technology Letters
Issue number2
Publication statusPublished - 2003 Jul 20
Externally publishedYes


  • Dual-mode filter
  • Dummy cavity
  • Tuning

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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