Dual-Layer Circularly Polarized Split Ring Resonator Inspired Antenna for Wearable UHF RFID Tag | IEEE Conference Publication | IEEE Xplore

Dual-Layer Circularly Polarized Split Ring Resonator Inspired Antenna for Wearable UHF RFID Tag


Abstract:

We present a circularly polarized antenna for wearable passive UHF RFID tag. The antenna consists of two layers without a physical connection. The upper layer is for achi...Show More

Abstract:

We present a circularly polarized antenna for wearable passive UHF RFID tag. The antenna consists of two layers without a physical connection. The upper layer is for achieving circular polarization by two orthogonal meandering dipoles connected to a split ring. The lower layer is a split ring resonator structure to achieve complex conjugate impedance matching with the RFID IC. The antenna has the maximum dimension of π×222×3 mm3 and it provided a 3-dB axial-ratio bandwidth of 23 MHz (905-928 MHz) in the simulation. The estimated maximum attainable read range of the tag exceeds two metres.
Date of Conference: 08-13 July 2018
Date Added to IEEE Xplore: 13 January 2019
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Conference Location: Boston, MA, USA

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