Circularly Polarized Corner-Truncated and Slotted Microstrip Patch Antenna on Textile Substrate for Wearable Passive UHF RFID Tags
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
Details
| Original language | English |
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| Title of host publication | 14th European Conference on Antennas and Propagation, EuCAP 2020 |
| Publisher | IEEE |
| Number of pages | 5 |
| ISBN (Electronic) | 9788831299008 |
| DOIs | |
| Publication status | Published - 1 Mar 2020 |
| Publication type | A4 Article in a conference publication |
| Event | European Conference on Antennas and Propagation - Copenhagen, Denmark Duration: 15 Mar 2020 → 20 Mar 2020 |
Publication series
| Name | 14th European Conference on Antennas and Propagation, EuCAP 2020 |
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Conference
| Conference | European Conference on Antennas and Propagation |
|---|---|
| Country | Denmark |
| City | Copenhagen |
| Period | 15/03/20 → 20/03/20 |
Abstract
We present a compact circularly polarized (CP) antenna for wearable passive UHF RFID tags. The antenna is a square-shaped microstrip patch antenna where we have applied corner truncation and slotting techniques in the top layer conductor for achieving the CP property and a shorting pin and loop structure for impedance matching. Despite using a lowpermittivity textile as antenna substrate, the antenna's footprint size is only 5-by-5 cm, which is approximately 15% of the operating wavelength. At the same time, the on-body measurements, the antenna's axial ratio is 0.9 dB and the measured attainable read range (reader's EIRP =3.28W) of the tag reaches 4.2 meters with a CP reader antenna and ranges from 2.9 meters to 3.4 meters for a linear reader antenna, depending on the rotation angle between the antennas.
ASJC Scopus subject areas
Keywords
- circular polarization, RFID tag, UHF, wearable antenna