Abstract
The design of a fully passive RFID enabled temperature sensor implemented on cork substrate is presented. A passive UHF RFID tag is designed based on a commercial RFID chip and a 3D meandered dipole antenna. The antenna is fabricated by milling the radiating structure on copper tape and gluing it on a cork substrate of rectangular prism shape leading to a low profile design. The matching network of the tag chip is modified to include a thermistor element. It is optimized using electromagnetic simulation to maximize its impedance sensitivity to temperature variations thus successfully implementing a passive antenna based temperature sensor. A variation in temperature leads to a modification of the tag read range in frequency, which can be detected by a reader with frequency or power sweep capability. A UHF prototype is fabricated and measurements are presented demonstrating the sensing operation.
Original language | English |
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Title of host publication | 2014 IEEE RFID Technology and Applications Conference (RFID-TA) |
Publisher | IEEE |
Pages | 82-85 |
Number of pages | 4 |
ISBN (Electronic) | 978-1-4799-4680-8 |
DOIs | |
Publication status | Published - 2014 |
Event | 2014 IEEE RFID Technology and Applications Conference - Tampere, Finland Duration: 8 Sept 2014 → 9 Sept 2014 |
Conference
Conference | 2014 IEEE RFID Technology and Applications Conference |
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Abbreviated title | RFID-TA 2014 |
Country/Territory | Finland |
City | Tampere |
Period | 8/09/14 → 9/09/14 |
Keywords
- RFID
- antenna sensing
- temperature sensor
- cork