NIST logo

Publication Citation: Using Microfluidic Channels to Determine ZThe Quantitative Permittivity of Nanoliter Fluid Volumes from 50 MHz TO 40 GHz USING MICROFLUIDIC CHANNELS TO DETERMINE THE QUANTITATIVE PERMITTIVITY OF NANOLITER FLUID VOLUMES FROM 50 MHZ TO 40 GHZ

NIST Authors in Bold

Author(s): James C. Booth; Nathan D. Orloff; Xiaoli Lu; Yu Wang; Eduard Rocas; Jordi Mateu; Juan C. Collado Gomez; Michael D. Janezic;
Title: Using Microfluidic Channels to Determine ZThe Quantitative Permittivity of Nanoliter Fluid Volumes from 50 MHz TO 40 GHz USING MICROFLUIDIC CHANNELS TO DETERMINE THE QUANTITATIVE PERMITTIVITY OF NANOLITER FLUID VOLUMES FROM 50 MHZ TO 40 GHZ
Published: July 30, 2010
Abstract: We describe the development of coplanar waveguide measurement structures integrated with microfluidic channels in order to rapidly determine the broadband dielectric properties of nanoliter volumes of fluids, fluid mixtures, and colloids over the range of frequencies from 50 MHz to 40 GHz. We employ of a number of different integrated microfluidic-microelectronic structures in order to quantitatively determine the complex permittivity function over this wide range of frequencies. We develop a network model based on transmission lines that uses experimentally-derived parameters to de-embed the response of the fluid-loaded devices, and apply finite-element models to determine the fluid complex permittivity.
Proceedings: CPEM 2010: Conference on Precision Electromagnetics Measurement 2010
Pages: pp. 353 - 354
Location: Daejon, -1
Dates: June 14-18, 2010
Keywords: fluid permittivity, microwave, coplanar transmission line
Research Areas: Calibrations (Electromagnetic), Microfluidics
PDF version: PDF Document Click here to retrieve PDF version of paper (211KB)