Low-cost inkjet-printed fully passive RFID tags for calibration-free capacitive/haptic sensor applications
Research output: Contribution to journal › Article › Scientific › peer-review
Details
| Original language | English |
|---|---|
| Article number | 6945328 |
| Pages (from-to) | 3135-3145 |
| Number of pages | 11 |
| Journal | IEEE Sensors Journal |
| Volume | 15 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1 Jun 2015 |
| Publication type | A1 Journal article-refereed |
Abstract
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.
ASJC Scopus subject areas
Keywords
- Capacitive sensing, cross-talk suppression, differential sensing, haptic sensors, inkjet-printing technology, Internet of Things (IoT), remote sensing, RFID, RFID-enabled sensor, wireless sensors