Xiaohua Yi, Chunhee Cho, James Cooper, Yang Wang, Manos M Tentzeris, Roberto T Leon
Abstract:This research investigates a passive wireless antenna sensor designed for strain and crack sensing. When the antenna experiences deformation, antenna shape changes, causing shift in electromagnetic resonance frequency of the antenna. A radio frequency identification (RFID) chip is adopted for antenna signal modulation, so that a wireless reader can easily distinguish backscattered sensor signal from unwanted environmental reflections. The RFID chip captures its operating power from interrogation electromagneti…
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