A UHF RFID Tag Embeddable in Small Metal Cavities

Michel, A.; Franchina, Vittorio; Nepa, Paolo; Salvatore, Alfredo

doi:10.1109/tap.2018.2883570

Cited by 21 publications

(11 citation statements)

References 21 publications

(30 reference statements)

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“…The encapsulation acts as an outer protective layer for the passive tag against external turbulence. In paper [31], the authors have designed a UHF based RFID tag that is being covered by a thin superstrate (the protective layer) of epoxy resin. The encapsulation should be performed in such a way that it does not affect the performance of the tag response.…”

Section: B Silicon Based Ic Rfid Tags 1) Passive Rfid Tagsmentioning

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: B Silicon Based Ic Rfid Tags 1) Passive Rfid Tagsmentioning

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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“…Hence, the radio waves pass through air, plastic, wood, and ceramics efficiently, while there is a considerable reduction and reflection with other materials such as conductors (e.g., metals). The use of metals in industrial environments creates blind spots for RFID readers and disrupts their performance [9,10]. Covering the RFID tag with metals causes electromagnetic (EM) shielding, but a movement of the metal cover removes the isolation and turns the RFID chip on.…”

Section: Introductionmentioning

confidence: 99%

RFID Technology as a Low-Cost and Passive Way to Digitize Industrial Analogic Indicators

et al. 2022

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Simple analog devices like manometers, manual valves, etc., have been ignored in the digitization process that has characterized the transition towards Industry 4.0. The reason behind this is that their substitution with the equivalent digital versions is high cost and needs re-wiring. This study introduces a low-cost wireless and passive model aligned with the Industry 4.0 paradigm to digitize analog indicators. The concept is based on electromagnetic (EM) shielding of the manometer’s embedded radio frequency identification (RFID) tag. We designed and tuned a new tiny RFID tag to be embedded into analog devices. Finally, a digitized manometer by RFID electromagnetic shielding concept is simulated in the Ansys HFSS modeling environment.

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“…e planar inverted-F antenna (PIFA) using the metallic surface as ground plane is a popular structure for designing miniature metal tags. By applying the PIFA design concept, the antenna size can be easily reduced by introducing vias [16,17], but the performance of a PIFA is significantly more sensitive to the position of the vias [18]. In this paper, a new type of L-shaped antenna is used for designing a novel 3D tag antenna that can be mounted on a metal object for IoT RFID applications.…”

Section: Introductionmentioning

confidence: 99%

A Novel 3D PILA-Type UHF RFID Tag Antenna Mountable on Metallic Objects for IoT Indoor Localization

Dhaouadi

Choubani

2021

International Journal of Antennas and Propagation

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In this paper, a novel 3D planar inverted-L antenna (PILA) Ultrahigh Frequency (UHF) Radio Frequency Identification (RFID) tag mountable on metallic surfaces is proposed for the Internet of Things (IoT) indoor localization applications. The proposed tag antenna (45 mm × 82 mm × 4 mm or 0.137λ × 0.25λ × 0.012λ) is designed for mounting on metallic objects. The 3D PILA antenna is fabricated using a copper sheet of thickness 1 mm and air as the dielectric substrate in order to minimize costs for materials and realization. In the design, T-slot has been inserted in the radiating element for tuning of the tag’s resonance for achieving good matching with the chip. Also, a simple equivalent circuit model has been obtained to analyze the impedance of the 3D PILA. Based on the optimized design, the fabricated prototype has been measured in the anechoic chamber. The resonant frequency of the proposed tag is stable, and it is not affected much by the metallic object. The measurement results of the antenna prototype demonstrated a reasonable agreement with the simulation results, and a read range of 3.6 m was measured inside an anechoic chamber. Most importantly, in the building hallway, the proposed tag is able to achieve a maximum read distance of 18 m with a transmitted power of 31.5 dBm at 867 MHz when placed on metal. With the 3D PILA antenna structure, the proposed antimetal tag is a suitable solution that can be integrated into an indoor localization scenario.

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A UHF RFID Tag Embeddable in Small Metal Cavities

Cited by 21 publications

References 21 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

RFID Technology as a Low-Cost and Passive Way to Digitize Industrial Analogic Indicators

A Novel 3D PILA-Type UHF RFID Tag Antenna Mountable on Metallic Objects for IoT Indoor Localization

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