Analysis and Design of an Uhf Rfid Metal Tag Using Magnetic Composite Material as Substrate

Kuo, Shih-Kang; Hsu, J.Y.; Hung, Yung-Hsiung

doi:10.2528/pierb10070107

Cited by 12 publications

(11 citation statements)

References 18 publications

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“…However, since most tags use a dielectric material [8][9][10][11] or high impedance surface substrate [12] to make an interval between the tag antenna and the attached surface and slit metallic plate with the appearance of a window [13], the price and the size prevent from applying them widely.…”

Section: Brief Introduction Of the Proposed Systemmentioning

confidence: 99%

Automated Rfid-Based Identification System for Steel Coils

Kim¹,

Kim²

2012

PIER

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Abstract-This paper describes the radio frequency identification (RFID)-based steel coil identification system for supply chain management in the steel and iron industry. During crane operation, coil information is automatically updated by reading an RFID tag which is attached to the coil. One of the technical challenges associated with the RFID-based coil identification is the fall of the identification performance due to neighboring metallic objects. In order to cope with this problem, a system was developed in two directions. First, an effective tag attachment method considering the work process and the environmental conditions was proposed. Second, an antenna case was developed to improve the reading performance by minimizing the influence from the attached surface and focusing the RF signal to the target tag. The simulation and experimental results at the POSCO steel company verify that the proposed system can sense the target RFID tag successfully.

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Section: Brief Introduction Of the Proposed Systemmentioning

confidence: 99%

Automated Rfid-Based Identification System for Steel Coils

Kim¹,

Kim²

2012

PIER

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“…When 0 < h < λ/4 is fulfilled, the gain will increase with h. And the reading distance r will exceed 2 meters at some distance near λ/4. Magnetic substrate can be effectively applied to decline the distance h [8,12]. In order to obtain a small, thin and efficient antenna, µ r and ε r of the magnetic substrate cannot be too large because large electromagnetic parameters can greatly affect the aperture efficiency.…”

Section: Analysis Of Antenna Parametersmentioning

confidence: 99%

“…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]. The use of magnetic substrate opens up opportunities for solving metal interference problem.…”

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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“…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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Analysis and Design of an Uhf Rfid Metal Tag Using Magnetic Composite Material as Substrate

Cited by 12 publications

References 18 publications

Automated Rfid-Based Identification System for Steel Coils

Automated Rfid-Based Identification System for Steel Coils

Magnetic Substrate Folded Dipole Antenna for Uhf Rfid Metal Tag

Case Study: Installing RFID Systems in Supermarkets

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