Microfluidically switched frequency-reconfigurable slot antennas

A.J. King, J.F. Patrick, N.R. Sottos, S.R. White, G.H. Huff, J.T. Bernhard

Research output: Contribution to journalArticle

44 Scopus citations

Abstract

This letter proposes a concept for frequency-reconfigurable slot antennas enabled by pressure-driven capacitive microfluidic switches. The switches are operated by pneumatically displacing a plug of eutectic gallium indium alloy (EGaIn) within an air-filled microchannel that traverses the slot orthogonally. Frequency reconfigurability is achieved by altering the displacement of conductive fluid within the channel, which reactively loads the slot. A transmission-line model is developed to capture the physical behavior of the fluid channel, and measurements are provided that show good agreement with the behavior of the model. \ 2002-2011 IEEE.
Original languageEnglish
Pages (from-to)828-831
Number of pages4
JournalIEEE Antennas and Wireless Propagation Letters
Volume12
DOIs
StatePublished - 2013
Externally publishedYes

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