Novel lumped-element uniplanar transitions

Yo Shen Lin, Chun Hsiung Chen

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

Novel reduced-size lumped-element uniplanar transitions are proposed, using the planar parallel and series inductor-capacitor (LC) circuits to realize the effective open and short circuits, respectively. In this study, various compact lumped-element coplanar waveguide-to-slotline and finite-ground coplanar waveguide-to-coplanar stripline transition structures are developed and carefully examined. Specifically, the performance of proposed basic lumped-element transitions can easily be adjusted through the control of L and C values, while the design of lumped-element Marchand-balun-type transitions may be accomplished by the use of conventional filter synthesis techniques. Simple equivalent-circuit models are also established, from which the passband behavior of the lumped-element transition structures may be characterized.

Original languageEnglish
Pages (from-to)2322-2330
Number of pages9
JournalIEEE Transactions on Microwave Theory and Techniques
Volume49
Issue number12
DOIs
StatePublished - Dec 2001

Keywords

  • Coplanar stripline
  • Coplanar waveguide
  • Marchand balun
  • Slotline
  • Transition

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