@inproceedings{07078924b3c84a8e8d7ade2c87f6028d,
title = "Circularly Polarized Corner-Truncated and Slotted Microstrip Patch Antenna on Textile Substrate for Wearable Passive UHF RFID Tags",
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.",
keywords = "circular polarization, RFID tag, UHF, wearable antenna",
author = "Duc Le and Leena Ukkonen and Toni Bj{\"o}rninen",
year = "2020",
month = mar,
day = "1",
doi = "10.23919/EuCAP48036.2020.9135984",
language = "English",
series = "14th European Conference on Antennas and Propagation, EuCAP 2020",
publisher = "IEEE",
booktitle = "14th European Conference on Antennas and Propagation, EuCAP 2020",
address = "United States",
note = "European Conference on Antennas and Propagation ; Conference date: 15-03-2020 Through 20-03-2020",
}