Flip-chip distributed MEMS transmission lines (DMTLs) for biosensing applications

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Abstract

Design and characterization of a flip-chip distributed MEMS transmission line (DMTL) are presented. The concept of using this DMTL as a biosensor is then introduced. Radio frequency experiments on the DMTL loaded with biosamples have been conducted using the most accessible materials, namely, deionized water and aqueous solutions of salts. Results show that the reflection coefficient (S11) of the solution-loaded DMTL is very sensitive to the salt concentration of the solution in the low-frequency ranges of 10 MHz-1 GHz and 3-4.5 GHz. At high frequencies, the relative dielectric constant of the biosample can also be quantitatively determined from the impedance of the DMTL.
Original languageEnglish
Pages (from-to)986-990
Number of pages5
JournalIEEE Transactions on Industrial Electronics
Volume56
Issue number4
DOIs
Publication statusPublished - 19 Aug 2008

Keywords

  • biosensor
  • distributed MEMS transmission line
  • DMTL
  • flip-chip

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