Humidity passive sensors based on UHF RFID using cork dielectric slabs
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
Details
| Original language | English |
|---|---|
| Title of host publication | 2015 9th European Conference on Antennas and Propagation, EuCAP 2015 |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9788890701856 |
| Publication status | Published - 27 Aug 2015 |
| Publication type | A4 Article in a conference publication |
| Event | 9th European Conference on Antennas and Propagation, EuCAP 2015 - Lisbon, Portugal Duration: 13 May 2015 → 17 May 2015 |
Conference
| Conference | 9th European Conference on Antennas and Propagation, EuCAP 2015 |
|---|---|
| Country | Portugal |
| City | Lisbon |
| Period | 13/05/15 → 17/05/15 |
Abstract
In this paper we show the design of passive UHF RFID tag antenna on cork substrate. Due to the cork sensitivity to humidity changes, we can use the developed sensor to sense changes in the relative humidity of the environment, without the need for batteries. The antenna is built using inkjet printing technology, which allows a good accuracy of the design manufacturing. The sensor proved usable for humidity changes detection with a variation of threshold power from 11 to 15 dB between 60 and near 100% humidity levels. Presenting, therefore, reading ranges between 3 to 5 meters.
ASJC Scopus subject areas
Keywords
- cork substrate, humidity sensor, RFID