TUTCRIS - Tampereen teknillinen yliopisto

TUTCRIS

Low-cost inkjet-printed fully passive RFID tags for calibration-free capacitive/haptic sensor applications

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Yksityiskohdat

AlkuperäiskieliEnglanti
Artikkeli6945328
Sivut3135-3145
Sivumäärä11
JulkaisuIEEE Sensors Journal
Vuosikerta15
Numero6
DOI - pysyväislinkit
TilaJulkaistu - 1 kesäkuuta 2015
OKM-julkaisutyyppiA1 Alkuperäisartikkeli

Tiivistelmä

A fully passive, compact, and low-cost capacitive wireless radio frequency identification (RFID)-enabled sensing system for capacitive sensing and other Internet of Things applications is proposed. This calibration-free sensor utilizes a dual-tag topology, which consists of two closely spaced RFID tags with dipole antennas and printed capacitive sensor component connected to one of the tags. A series LC resonator is used to both reduce the antenna size and improve the isolation between the two antennas and the design/optimization steps are discussed in detail. All components except for the RFID chips are inkjet printed on an off-the-shelf photopaper using a silver nanoparticle ink. The complete sensor dimension is 84mm × 95mm and the sensor is compatible with EPC Class 1 Gen 2 (UHF) standard reader technology at 915 MHz.

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