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Modeling, Design and Experimentation of Wearable RFID Sensor Tag

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3 Author(s)
Occhiuzzi, C. ; DISP, Univ. of Roma Tor Vergata, Rome, Italy ; Cippitelli, S. ; Marrocco, G.

Design of effective wearable tags for UHF RFID applications involving persons is still an open challenge due to the strong interaction of the antenna with the human body which is responsible of impedance detuning and efficiency degradation. A new tag geometry combining folded conductors and tuning slots is here discussed through numerical analysis and extensive experimentation also including the integration of a passive motion detector. The achieved designs, having size comparable with a credit card, may be applied to any part of the body. The measured performance indicates a possible application of these body-worn tags for the continuous tracking of human movements in a conventional room.

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Antennas and Propagation, IEEE Transactions on  (Volume:58 ,  Issue: 8 )