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 |
|---|---|
| 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 |
|---|---|
| Abbreviated title | RFID-TA 2014 |
| Country/Territory | Finland |
| City | Tampere |
| Period | 8/09/14 → 9/09/14 |
Keywords
- RFID
- antenna sensing
- temperature sensor
- cork