Lumped-element impedance-transforming uniplanar transitions and their antenna applications

Yo Shen Lin, Chun Hsiung Chen

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Novel impedance-transforming coplanar waveguide (CPW)-to-coplanar stripline transitions and CPW-to-slotline transitions are proposed, using planar lumped elements to realize the L-section impedance-matching network in the transition structures. Simple equivalent-circuit models based on closed-form expressions are also established, from which various lumped-element impedance-transforming transitions are investigated. Examples for using the proposed transitions in the design of antenna feeding structures are also demonstrated, and successful size reduction has been achieved.

Original languageEnglish
Pages (from-to)1157-1165
Number of pages9
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number4
StatePublished - Apr 2004


  • Antenna feeding structure
  • Impedance-transforming transition


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