Flexible wideband UHF RFID tag antenna for curved metal surfaces

Son, Hae‐Won; Jeon, Hyung-Joon; Cho, J.-H.

doi:10.1049/el.2012.1030

Cited by 24 publications

(15 citation statements)

References 4 publications

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“…In the scientific literature, there are some prominent studies dealing with the design of tags nonvulnerable to the above phenomena [24][25][26][27][28][29][30].…”

Section: Electromagnetic Noise Absorption and Reflectionmentioning

confidence: 99%

Case Study: Installing RFID Systems in Supermarkets

Bueno-Delgado¹,

Burrull²,

Pavón‐Mariño³

2017

Radio Frequency Identification

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Radio frequency identification technology (RFID) is considered as the reference technology for wireless identification and item traceability. Supermarkets are one of those scenarios where the RFID potential can be harnessed. In theory, RFID in supermarkets shows several advantages compared with traditional barcode systems, offering real-time inventory, stock control, cash queues, among others. In practice, its massive and global implementation is still being delayed due to the high quantity of factors that degrade the RFID system performance in these scenarios, causing uncontrolled items and identification losses and, at the end, economical losses. Some works in the scientific literature studied a single or a set of problems related to RFID performance, mostly focused on a specific communication layer: antennas and hardware design, interferences at physical layer, medium access control (MAC) protocols, security issues, or middleware challenges. However, there are no works describing in depth the set of factors affecting RFID performance in a specific scenario and contemplating the entire communication layer stack. The first challenge of this chapter is to provide a complete analysis of those physical and environmental factors, hardware and software limitations, and standard and regulation restrictions that have a direct impact on the RFID system performance in supermarkets. This analysis is addressed by communication layers, paying attention to the point of view of providers, supermarket companies, and final customers. Some of the most feasible and influential research works that address individual problems are also enumerated. Finally, taking the results extracted from this study, this chapter provides a Guide of Good Practices (GGPs), giving a global vision for addressing a successful RFID implementation project, useful for researchers, developers, and installers.

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“…In the scientific literature, there are some prominent studies dealing with the design of tags nonvulnerable to the above phenomena [24][25][26][27][28][29][30].…”

Section: Electromagnetic Noise Absorption and Reflectionmentioning

confidence: 99%

Case Study: Installing RFID Systems in Supermarkets

Bueno-Delgado¹,

Burrull²,

Pavón‐Mariño³

2017

Radio Frequency Identification

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“…They were created also tags that can be placed on metallic objects with cylindrical or spherical shapes, known as flexible tags [9][10][11][12]. These kinds of tags have large dimensions and can be attached only on big items.…”

Section: Introductionmentioning

confidence: 99%

Low profile flexible metal mountable UHF RFID tag antenna

Petrariu

Popa

2015

2015 International Symposium on Signals, Circuits and Systems (ISSCS)

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This paper presents a low cost and a low profile flexible microstrip patch tag antenna for UHF RFID systems that can be metal mountable. The simple design that doesn't imply using shorting pins, flexibility and small size (25mm X 50mm X 0.5mm) are a few of the advantages given by this design. The proposed antenna is simulated and the results obtained are compared with measurements performed with Agilent FieldFox N9912A VNA. At ETSI frequency band, the reading distance is up to 2.7m, which shows that the tag achieves good size/performance ratio for flexible metal mountable UHF RFID tags. The gain of the antenna is only -16.25dB, but in order to reach the mentioned reading distance is used an RFID chip having a wake-up power of -20.5dBm. The proposed tag can be easily mounted on metallic objects having various sizes and shapes.I.

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“…Much research about metal tag antennas has been reported to solve this problem. The main solutions include inserting a dielectric layer between the antenna pattern and the metal ground or even using special antenna design principles to avoid metal interference [2][3][4][5][6], but their uses are limited by the considerable prices. Recently, a series of novel RFID metal tags are proposed, for instance, tag equipped with Artificial Magnetic Conductor reported by Abu et al [7] and tag equipped with magnetic composite material reported by Kuo et al [8].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Substrate Folded Dipole Antenna for Uhf Rfid Metal Tag

Guan¹,

Liang²,

Wang³

et al. 2014

PIER Letters

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Abstract-In this paper, magnetic material was applied in the design of a UHF-RFID metal tag to increase the reading distance. The influence of the electromagnetic properties, especially the electromagnetic loss, of a magnetic substrate on the gain of the tag antenna is discussed by analyzing the reflection and the surface current distribution. As to folded antenna, the loss of energy caused by the magnetic substrate tends to occur in the folding edge of the antenna. Both simulations and experiments indicate that electromagnetic loss markedly reduces the gain rapidly when both the dielectric loss tangent (tan δ) and the magnetic loss tangent (tan δm) are between 0 and 0.3. The reading distance drops from 3 m to 1.5 m when the tan δm of the magnetic composite substrate increases from 0.009 to 0.023. And tan δm should be less than 0.1 for the antenna working excellently. The conclusion offers meaningful guidance for future studies of magnetic substrate folded metal tag.

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Flexible wideband UHF RFID tag antenna for curved metal surfaces

Cited by 24 publications

References 4 publications

Case Study: Installing RFID Systems in Supermarkets

Case Study: Installing RFID Systems in Supermarkets

Low profile flexible metal mountable UHF RFID tag antenna

Magnetic Substrate Folded Dipole Antenna for Uhf Rfid Metal Tag

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