Review on UHF RFID antennas

Lau, Pui Yi; Chu, Qing‐Xin; Yue-shan, WU

doi:10.1109/iwem.2017.7968764

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…In paper [19], the authors have provided the explanation for the adoption of RFID tags and readers in large-scale organization followed by various challenges and solutions. Papers [20] and [21] provided a brief review on RFID tag antenna and reviewed tag anti-collision algorithms for RFID. Papers [22] and [23] reviewed the privacy issues of RFID tags during implementation and also discussed chipless RFID tag technology.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Survey on Silicon Based and Surface Acoustic Wave (SAW)-Based RFID Tags: Potentials, Challenges, and Future Directions

et al. 2020

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Many Automatic Identification (Auto-ID) technologies such as bar codes, magnetic stripes, Optical Character Recognition (OCR) and Electronic Article Surveillance (EAS) security tags are in existence. However, they are limited by a variety of constraints on them such as limited object rate of scan, need for Line-of-Sight (LOS) operation, very small interrogation range and poor accuracy in complex environments. Research has accordingly grown rapidly in recent years into the development of robust identification or tracking mechanisms. Radio Frequency Identification (RFID) technology using readers and RFID tags, whether passive, semi-passive or active in nature, has been deemed to be a promising candidate. Silicon based IC tags are quite popular. However, some alternative RFID technologies have also been on the rise. In particular, another special type of tag based on Surface Acoustic Wave (SAW) design also has a great potential for deployment in future identification fields due to its ruggedness against harsh conditions, metallic environments, interference, small and low cost and is being thoroughly reviewed, which is ignored in other survey papers. While other chipless RFID systems based on conductive ink, ink-tattoo and others do exist, negative aspects such as inability to survive in extreme weather, larger tag size and limited data storage capacity have severely impacted the penetration of such tags in the RFID market. Therefore, the scope of this survey article does not include chipless RFID tags. This article instead provides a comparative survey of silicon based IC and SAW based tags, which has attracted much attention from both academia and industry. The underlying characteristics, principles, advantages, and limitations of such tags are thoroughly discussed, and relevant research work followed by frequency of operation and other parameters are elaborated. This article undertakes a thorough investigation into the evolution of RFID technology and comparison into the current trend in silicon based IC and SAW based RFID tags and provides a comparison across many metrics, such as read range, tag size, tag power, availability of tag power, lifespan and more importantly, cost and security. It discusses active and passive tags under silicon based IC and SAW technology. Finally, the article reviews recent advances and provides potentials, open challenges and future research directions in such RFID tags. INDEX TERMS RFID tracking/identification, surface acoustic wave (SAW), interdigital transducer (IDT), silicon based integrated circuit (IC) RFID tags, near field, far field communication. 2) ELECTROMAGNETIC BACKSCATTER/FAR FIELD RFID COMMUNICATION

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Section: Introductionmentioning

confidence: 99%

A Comparative Survey on Silicon Based and Surface Acoustic Wave (SAW)-Based RFID Tags: Potentials, Challenges, and Future Directions

et al. 2020

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“…Thus, most UHF RFID reader antennas in the literature were designed to cover the resonant frequency band from 860 to 960 MHz. If all requirements regarding bandwidth, polarization, radiation pattern, and compact size must be fulfilled, designing the reader antenna is a very challenging task [4].…”

Section: Introductionmentioning

confidence: 99%

A compact wideband circularly polarized quadrifilar antenna with PIFA elements for UHF RFID readers

Lerkbangplad

Namahoot²,

Akkaraekthalin

et al. 2020

Int. J. Microw. Wireless Technol.

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In this paper, a compact circularly polarized quadrifilar antenna with planar inverted-F antenna (PIFA) elements is presented. The proposed antenna consists of four PIFA elements and a Wilkinson divider-based feed network fabricated on FR-4 substrate (ɛr = 4.4, loss tangent = 0.02, thickness = 1.6 mm). The total size of the antenna is 120 × 120 × 13.2 mm3. Impedance matching with a reflection coefficient <−15 dB and an axial ratio (AR) <3 dB are achieved over the global ultra-high frequency (UHF) radio frequency identification (RFID) frequency band and beyond. The realized gain ranges from 2.25 to 3.75 dBic within the frequency band of interest from 860 to 960 MHz with a directional radiation pattern. The proposed antenna is compact, low-cost and extremely wideband in terms of matching and AR compared to state-of-the-art UHF RFID reader antennas.

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“…Several blocks are critical on an RFID reader system, and antenna is a key element to maximize reading performance. According to a brief review on UHF RFID antenna in the market [2], handheld devices usually use a ceramic patch antenna. Moreover, Circular Polarization (CP) is one of the critical characteristics of a UHF RFID antenna to enable tag reading regardless of their orientation.…”

Section: Introductionmentioning

confidence: 99%

Miniature Circularly Polarized Antenna for Uhf Rfid Handheld Reader: Design and Experiments

Trinh¹,

Lu²,

Nguyen³

et al. 2020

PIER M

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A low-profile circularly polarized (CP) antenna for a handheld Ultra-High Frequency Radio Frequency Identification (UHF RFID) reader is proposed in this paper. The radiating part on the top substrate is composed of three inverted-F elements rotated 120 • around the center of the structure. A power splitting circuit, placed on the bottom substrate, based on a series transmission line feed delivers equal amplitude to the three IFAs with a sequential 120 • phase shift. Both layers are fabricated on low-cost FR4 material. This design has a disk form factor with a compact size of 35 mm circle radius and an 8.6 mm height. The measurement shows good results with S 11 as lower than −10 dB for the whole band, 3 dB-axial ratio around 110 • (10 MHz of bandwidth), directivity reaching 4.4 dBic, and the total gain of the antenna is 1.9 dBic. In order to validate the proposed antenna performance, a UHF RFID handheld reader is built based on the ThingMagic M6E-Nano module. Different scenarios are investigated to validate the proposed antenna performance in a real environment.

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Review on UHF RFID antennas

Cited by 6 publications

References 8 publications

A Comparative Survey on Silicon Based and Surface Acoustic Wave (SAW)-Based RFID Tags: Potentials, Challenges, and Future Directions

A Comparative Survey on Silicon Based and Surface Acoustic Wave (SAW)-Based RFID Tags: Potentials, Challenges, and Future Directions

A compact wideband circularly polarized quadrifilar antenna with PIFA elements for UHF RFID readers

Miniature Circularly Polarized Antenna for Uhf Rfid Handheld Reader: Design and Experiments

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