High directivity directional coupler using metamaterial

Young Hoon Chun, Jia Sheng Hong, Ju Young Moon, Sang W. Yun

Research output: Chapter in Book/Report/Conference proceedingConference contribution

19 Citations (Scopus)


In this paper, a novel uni-planar directional coupler using left-handed transmission lines is proposed. Short microstrip parallel coupled lines and asymmetrical delay line pairs make multi-sectioned coupler enhance the directivity as well as the coupling. Each delay line pair consists of a right-handed transmission line and a lumped left-handed transmission line. Furthermore, a ?/12 coupled line for the coupled line section makes the design area compact. The designed 3-section 18 dB coupler is measured at the center frequency of 2.0 GHz, which shows good agreement with the simulation result. © 2006 EuMA.

Original languageEnglish
Title of host publicationProceedings of the 36th European Microwave Conference, EuMC 2006
Number of pages3
Publication statusPublished - 2007
Event36th European Microwave Conference - Manchester, United Kingdom
Duration: 10 Sept 200612 Sept 2006


Conference36th European Microwave Conference
Abbreviated titleEuMC 2006
Country/TerritoryUnited Kingdom


  • Directional couplers
  • Directivity
  • Left-handed transmission lines
  • Metamaterial


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