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A passive UHF RFID tag for wireless fracture toughness measurement on metals
Date Issued
01-05-2019
Author(s)
Chakaravarthi, Geetha
Prasath, Krishna
Indian Institute of Technology, Madras
Velmurugan, R.
Indian Institute of Technology, Madras
Abstract
Design and development of passive radio frequency identification (RFID) tag is presented for wireless fracture toughness measurement on metals. The antenna was progressively optimized using Finite element method (FEM) based 3D Electromagnetic (EM) simulation software. The tag antenna (56 × 26 mm2 was fabricated on a 1.57 mm thick RT/duroid 5870 substrate and characterized on compact tension (CT) specimen. Experimental verification of the numerical simulations demonstrates that the proposed tag antenna exhibits excellent impedance matching with the RFID chip over 860-960 MHz