A Dual-Broadband Circularly Polarized Slot Antenna for RFID Reader Applications

DOI

10.2991/iset-15.2015.42How to use a DOI?

Keywords

Circular polarization, Slot antenna, dual-band, RFID reader

Abstract

In this article, a compact RFID reader antenna operated on UHF band and WLAN with circular polarization is proposed. The antenna is comprised of an inverted L-shaped strip and an asymmetric U-shaped strip. The antenna is fed by a coplanar waveguide (CPW) line. The simulated result for -10-dB impedance bandwidth is about 550 MHz (875–1425 MHz) and 480 MHz (2.16–2.64 GHz). Its corresponding simulated 3-dB axial-ratio (AR) bandwidth is about 398 MHz (772-1170 MHz) and 55 MHz (2.32-2.375 GHz). The overall antenna size is 120mm×120mm×1.6mm. The results show a perfect circularly polarized radiation in both the lower and upper bands. In comparison to the recent works, the proposed antenna has wider impedance bandwidths, and better circularly polarized performance.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Hao Xie
AU  - Manxi Wang
AU  - Yusha Liu
AU  - Jun Hu
PY  - 2015/03
DA  - 2015/03
TI  - A Dual-Broadband Circularly Polarized Slot Antenna for RFID Reader Applications
BT  - Proceedings of the First International Conference on Information Science and Electronic Technology
PB  - Atlantis Press
SP  - 168
EP  - 171
SN  - 2352-538X
UR  - https://doi.org/10.2991/iset-15.2015.42
DO  - 10.2991/iset-15.2015.42
ID  - Xie2015/03
ER  -