Novel broadband microstrip-to-CPW transition with easy transmission band control

Jung Woo Baik, Tae Hak Lee, Young Sik Kim

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


A broadband microstrip-to-coplanar waveguide (CPW) transition using two parallel folded balun structures with easy transmission band control for various RF circuits and integrated systems is proposed in this paper. Each balun is employed an open-circuited microstrip line and a short-circuited slotline with one quarter-wavelength long each. As the change of the length of the open and short circuits, the transmission band can be easily controlled. The measured return and insertion losses are better than 10dB and 1.4dB, respectively, over the bandwidth of 82.5% at the center frequency of 6 GHz.

Original languageEnglish
Pages (from-to)48-52
Number of pages5
Journalieice electronics express
Issue number2
Publication statusPublished - 2008 Jan 25


  • Broadband balun
  • Coplanar waveguide
  • Microstrip line
  • Transition structure

ASJC Scopus subject areas

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


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