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Wireless strain sensor through a flexible tag antenna employing inductively-coupled RFID microchip
Conference proceeding

Wireless strain sensor through a flexible tag antenna employing inductively-coupled RFID microchip

Damiano Patron, Timothy Kurzweg, Adam Fontecchio, Genevieve Dion and Kapil R Dandekar
WAMICON 2014, pp 1-3
Jun 2014

Abstract

Antenna measurements Wireless sensor networks Flexible Antennas Dipole antennas RFID Applications Impedance Substrates Radiofrequency identification Wireless Sensing
Intensity variations of the backscattered power from an RFID tag have been demonstrated to be a potential wireless solution to measure material deformation. This paper discusses the design and performance of a flexible tag antenna equipped with novel inductively-coupled RFID microchip for use as a wireless strain sensor. Dielectric characterization of a flexible substrate has been carried out to properly design and simulate the proposed antenna design. Due to the balanced nature of this radiating element, differential scattering parameter measurements were performed to characterize the antenna input impedance. Finally, measurements of the backscattered power as a function of radial deformations are also shown as a qualitative analysis of the strain sensing capabilities.

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