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Chipless RFID Sensor Tag for Metal Crack Detection and Characterization

Lookup NU author(s): Adi Marindra, Professor Gui Yun TianORCiD



This is the final published version of an article that has been published in its final definitive form by IEEE, 2018.

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OAPA Chipped radio-frequency identification (RFID) sensor systems have been studied for structural health monitoring (SHM) applications. However, the use of chip in sensor tags and its standardized narrowband operation contribute shortcomings in cost, durability, and detection capability. This paper presents a novel use of the frequency signature-based chipless RFID for metal crack detection and characterization operating in ultra-wideband frequency. The vision is to implement a low-cost and high-temperature-resistant passive wireless sensor able to monitor the crack on a metallic structure with multiparameter detection. We propose a chipless RFID sensor tag integrating four tip-loaded dipole resonators as a 4-bit ID encoder and a circular microstrip patch antenna (CMPA) resonator as a crack sensor. The radar cross section spectrum of the chipless RFID sensor tag generates four resonant frequencies from the dipole resonators and a resonant frequency from the CMPA resonator. Simulation and experimental results show that the resonant frequency shift of the CMPA is a useful feature to indicate the crack orientation and the crack width on a metallic structure. The direction of the resonant frequency shift represents the orientation of the crack, while the magnitude of the resonant frequency shift is proportional to the width of the crack. Furthermore, the experimentation with a natural fatigue crack sample proves that the proposed sensor tag is capable of detecting submillimeter cracks.

Publication metadata

Author(s): Marindra AMJ, Tian GY

Publication type: Article

Publication status: Published

Journal: IEEE Transactions on Microwave Theory and Techniques

Year: 2018

Volume: 66

Issue: 5

Pages: 2452-2462

Print publication date: 01/05/2018

Online publication date: 07/03/2018

Acceptance date: 02/04/2016

Date deposited: 27/06/2018

ISSN (print): 0018-9480

ISSN (electronic): 1557-9670

Publisher: IEEE


DOI: 10.1109/TMTT.2017.2786696

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