EDGE coupled variable microfluidic directional coupler

Casey Murray, Rhonda R. Franklin

Research output: Contribution to journalArticlepeer-review


A microstrip directional coupler with a microfluidic superstrate in the coupling gap is investigated.In the microfluidic channel, relative dielectric constant values ranging from εr = 81 to εr = 1, deionized water and air are studied, respectively. The tuning range of the coupler is evaluated experimentally and compared to its full-wave simulation.

Original languageEnglish (US)
Pages (from-to)756-758
Number of pages3
JournalMicrowave and Optical Technology Letters
Issue number4
StatePublished - Apr 1 2013


  • couplers
  • directional couplers
  • fluids
  • microfluidics
  • permittivity


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