Study of a Multi-Loop Travelling Wave UHF RFID Near-Field Antenna

Zijian Xing; Haotian Li; Chow Yen Desmond Sim; Jianying Li; Ziliang Li

doi:10.1109/ACCESS.2020.2985992

Study of a Multi-Loop Travelling Wave UHF RFID Near-Field Antenna

Zijian Xing, Haotian Li, Chow Yen Desmond Sim, Jianying Li, Ziliang Li

School of Electronics and Information

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

A multi-loop travelling-wave ultra-high frequency (UHF) radio frequency identification (RFID) near-field antenna (NFA) is proposed and investigated. To achieve strong and uniform magnetic field, as well as extendable reading range, multiple λ/2 rectangular loop structures printed on both sides of an FR4 substrate is adopted. Via the RFID system measurement for magnetic field distribution, the maximum reading range of the proposed NFA is 11 cm, and its corresponding 100% reading rate distance is 5 cm. Here, broad 10-dB impedance bandwidth of 18.7% (816-984 MHz) was measured, which can cover both ETSI (European Telecommunication Standards Institute) and FCC (Federal Communications Commission) bands. Parametric studies are further carried out to facilitate the design and optimization processes.

Original language	English
Article number	9057657
Pages (from-to)	69829-69837
Number of pages	9
Journal	IEEE Access
Volume	8
DOIs	https://doi.org/10.1109/ACCESS.2020.2985992
State	Published - 2020

Keywords

multiple loop
near-field antenna
travelling wave
UHF RFID

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10.1109/ACCESS.2020.2985992

Cite this

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title = "Study of a Multi-Loop Travelling Wave UHF RFID Near-Field Antenna",

abstract = "A multi-loop travelling-wave ultra-high frequency (UHF) radio frequency identification (RFID) near-field antenna (NFA) is proposed and investigated. To achieve strong and uniform magnetic field, as well as extendable reading range, multiple λ/2 rectangular loop structures printed on both sides of an FR4 substrate is adopted. Via the RFID system measurement for magnetic field distribution, the maximum reading range of the proposed NFA is 11 cm, and its corresponding 100% reading rate distance is 5 cm. Here, broad 10-dB impedance bandwidth of 18.7% (816-984 MHz) was measured, which can cover both ETSI (European Telecommunication Standards Institute) and FCC (Federal Communications Commission) bands. Parametric studies are further carried out to facilitate the design and optimization processes.",

keywords = "multiple loop, near-field antenna, travelling wave, UHF RFID",

author = "Zijian Xing and Haotian Li and Sim, {Chow Yen Desmond} and Jianying Li and Ziliang Li",

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AU - Li, Ziliang

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AB - A multi-loop travelling-wave ultra-high frequency (UHF) radio frequency identification (RFID) near-field antenna (NFA) is proposed and investigated. To achieve strong and uniform magnetic field, as well as extendable reading range, multiple λ/2 rectangular loop structures printed on both sides of an FR4 substrate is adopted. Via the RFID system measurement for magnetic field distribution, the maximum reading range of the proposed NFA is 11 cm, and its corresponding 100% reading rate distance is 5 cm. Here, broad 10-dB impedance bandwidth of 18.7% (816-984 MHz) was measured, which can cover both ETSI (European Telecommunication Standards Institute) and FCC (Federal Communications Commission) bands. Parametric studies are further carried out to facilitate the design and optimization processes.

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Study of a Multi-Loop Travelling Wave UHF RFID Near-Field Antenna

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