Magnetic Tag Antenna for UHF Near-ﬁeld and Far-Field RFID Applications

Mondher Dhaouadi; M. Mabrouk; T. Vuong; A. Ghazel

doi:10.15866/irecap.v5i2.5802

Magnetic Tag Antenna for UHF Near-ﬁeld and Far-Field RFID Applications

Mondher Dhaouadi^(1*), M. Mabrouk⁽²⁾, T. Vuong⁽³⁾, A. Ghazel⁽⁴⁾

^(*) Corresponding author

Authors' affiliations

DOI: https://doi.org/10.15866/irecap.v5i2.5802

Abstract

A novel broadband magnetic Tag antenna for ultra-high frequency (UHF) near-ﬁeld (NF) and far-field (FF) radio-frequency identiﬁcation (RFID) applications is presented. This antenna is printed on an Rogers RT/duroid 5880 substrate with an overall size of 68 × 19.7 × 0.787 mm. The simulated bandwidth of the proposed Tag antenna is more than 100 MHz (860960MHz), which can cover the entire UHF RFID band. The proposed structure can generate a strong and uniform H-ﬁeld distribution in the region around the antenna. The minimum power required to activate the Tag at 900 MHz is approximately of -12.6 dBm in the near-zone (18 cm) and 2.8 dBm in the far-zone (65 cm) in anechoic chamber. The measured read range is about 15 m when the transmission power level is 25 dBm in open environment. Measurements show that the antenna operating confirms good performance of Tag identiﬁcation for near-ﬁeld and far-ﬁeld UHF RFID applications.
Copyright © 2015 Praise Worthy Prize - All rights reserved.

Keywords

Near-Field (NF); Far-Field (FF); Radio Frequency IDentification (RFID)

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