Chipless RFID based high resolution crack sensing through SWB technology

This paper proposes a novel chipless RFID sensor that offers a high resolution crack detection technique and enables pervasive wireless crack sensing with greater accuracy and higher precision. The proposed sensor uses an antenna with a super wide band (SWB) ranging from 1-20 GHz which provides the high resolution through its extremely short time domain pulse. A critical analysis on the computational results is carried out and a comparative analysis on the SWB and UWB sensor is performed to indicate the proposed sensor´s superiority.