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Passive UHF (ultra high frequency) RFID (radio frequency identification) is a promising technology for products tracking in logistics or routing packages in supply chain. However, passive UHF RFID tag suffers a lot when it is placed on conductive plane or water surface. Many designs like microstrip antenna and ferrite antenna have been used to solv...
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Radio frequency identification (RFID) excelled in automatic identification and data collection industry through its speed, agility, and endurance. In this letter, an improved uniplanar antenna for handheld RFID reader applications covering free ISM bands of 2.45 and 5.8 GHz is presented. The antenna is composed of a microstrip feeding line, two uns...
A compact circularly polarized microstrip antenna (CPMA) with slits is proposed for radio frequency identification (RFID) handheld reader applications. The slits are cut onto the square patch radiator diagonally to reduce antenna size with circular polarization (CP) operation. A measured 3-dB axial-ratio (AR) bandwidth of around 4.0 MHz with 19.0 M...
In recent years, the application of radio frequency
identification (RFID) operating in the ultra-high frequency
(UHF) band (860-960MHz) are expanding exponentially,
due to the advantages such as long reading distance, high
data transfer rate, and small tag size. So the design of a CP
tag antenna with broadband characteristic is presently one...
A novel design of miniaturized dual-bandantenna based on mushroom cell and interdigital capacitor is presented in this paper. Four transmission line (TL) elements are loaded in a microstrip antenna, and each one is composed ofamushroom cell and interdigital capacitors. The interdigital capacitors contribute to the series capacitance and metallicvia...
The environmental impact of mass produced, disposable antennas is a major consideration in such areas as RFID, cellular telephones and keyless entry devices. The selection of environmentally benign materials and low energy manufacturing impacts the efficiency of antennas. This letter outlines a design methodology based on tapering printed meander l...
Citations
... On-Metal RFID Tag Design and Performance [5,12,14,17,19,21,23,28,35,37,38,40,[42][43][44][51][52][53][54]66,67,70] Antenna Design and Optimization [13,18,20,22,[24][25][26][27]29,33,34,36,41,[45][46][47]49,50,56,60,61,65] RFID Tag Performance Enhancement Techniques [15,16,[30][31][32]57] Multi-Band and Wideband RFID Applications [58] RFID Applications for Safety and Health Monitoring [39,55,69] Innovative Materials and Structures for RFID Tags [62] RFID System Analysis and Environmental Performance Evaluation [63] Energy Harvesting and Autonomous RFID Systems [68] RFID for Material Identification and Sensing [48,59] Advanced Computational Techniques for RFID Design [64] ...
Radio-frequency identification technology finds extensive use in various industrial applications, including those involving metallic surfaces. The integration of radio-frequency identification systems with metal surfaces, such as those found in the automotive sector, presents distinct challenges that can notably affect system efficacy due to metal’s tendency to reflect electromagnetic waves, thus degrading the functionality of conventional radio-frequency identification tags. This highlights the importance of conducting research into academic publications and patents to grasp the current advancements and challenges in this field, aiming to improve the applications of radio-frequency identification tags technology on metal. Consequently, this research undertakes a concise review of both the literature and patents exploring radio-frequency identification technology’s use for on-metal tags, utilizing resources like Google Scholar and Google Patents. The research categorized crucial aspects such as tag flexibility, operating frequency, and geographic origins of the research. Findings highlight China’s prominent role in contributing to metal-focused radio-frequency identification tag research, with a considerable volume of articles and patents. In particular, flexible tags and the Ultra-High Frequency range are dominant in both scholarly and patent documents, reflecting their significance in radio-frequency identification technology applications. The research underscores a vibrant area of development within radio-frequency identification technology, with continued innovation driven by specific industrial needs. Despite the noted advances, the presence of a significant percentage of no longer valid patents suggests substantial opportunities for further research and innovation in radio-frequency identification technology for on-metal applications, especially considering the demand for flexible tags and for solutions in systems that offer specialized characteristics or are tailored for specific uses.
... (3) Segundo Kloster, (4) a rastreabilidade representa maior segurança aos clientes, pois a identificação da peça pelo código de rastreabilidade é única e garante que a mesma passou por controles rigorosos antes de chegar a sua mão. (5) O desperdício de tempo e de matéria-prima também são reduzidos e há diminuição do retrabalho com peças defeituosas, reduzindo os custos de produção e de logística e aumentando, consequentemente, as margens de lucro para os fabricantes. (6)(7)(8) Para Mello, (9) a rastreabilidade fornece informações sobre o ciclo de vida do produto, pois pode agregar um grande volume de informações sobre as especificações da peça, suas medidas e conformidade com as normas de qualidade e o lote de fabricação, entre outros, sendo que estas informações são colhidas e armazenadas no código durante o processo produtivo. ...
A indústria automotiva tem papel de destaque no mercado global, onde a concorrência no setor é intensa e caracteriza produtos com ciclos de vida cada vez menores. Neste cenário, a utilização da inovação tecnológica é primordial para reduzir custos, aumentar o lucro, diminuir ciclos de vida e, consequentemente, garantir a qualidade e a satisfação do cliente. A rastreabilidade é uma das ferramentas de suporte e inovação e é fortemente utilizada no setor automotivo. Esta permite que fornecedores consigam rastrear em tempo real seus produtos, aumentar a qualidade e diminuir o retrabalho. Além disso, nos casos de recall, o valor gasto para encontrar o lote defeituoso é diminuído, a segurança preservada e a satisfação do cliente mantida. Este trabalho discute os modelos e tipos de rastreabilidade usados no setor automotivo e o papel da inovação tecnológica como suporte a esses modelos. Apresenta-se um caso real aplicado no setor, onde a inovação apresentou ganhos de produtividade e qualidade. Neste, realiza-se uma análise da rastreabilidade de processos de manufatura mecânica e propõe-se uma alteração no processo de etiqueta pela tecnologia Data Matrix. Como resultado, verificou-se que esta tecnologia possibilitou melhorar fortemente a rastreabilidade do processo produtivo e mostrou-se muito superior em termos de produtividade, qualidade, tempo de marcação e custos se comparado ao de etiquetas.
Palavras-chave: Rastreabilidade; Indústria automotiva; Data Matrix.
... Various configurations of EBG structures have been successfully applied in the patch antenna arrays to improve array characteristics, such as reduction of total size of the array and increasing radiation efficiency [5] [6] [7].The development of radio frequency identification (RFID) technology is rapidly growing for itemlevel tracking. RFID technology is an automatic identification method which can be used for product tracking [8] [9]. Now RFID has many applications in many areas such as item identification and retail management. ...
— Novel KSA (Kingdom of Saudi Arabia) slogan shape microstrip antenna is presented. The single and two element antenna array were designed and fabricated on a Roger RT/Duroid 5880 substrate with dielectric constant of 2.2, thickness of 1.5748 mm, and tan δ = 0.001. The measured results were obtained using Anritsu 37297D VNA. The results show that a reduction in mutual coupling between array elements of 11.9 dB is achieved at 2.542 GHz with band (2.39-2.69) GHz, due to introducing Electromagnetic bandgap (EBG) structures. EBG structure is a KSA slogan shape. By increasing the size of EBG cells and varying the gap distance between cells to certain limit, the mutual coupling reduction is improved. Also, a reduction in size of 89.5% is achieved. The microstrip array was simulated by CST simulator version 2014 and fabricated by proto laser machine with precision 25µm. The specific absorption rate (SAR) investigation is carried out on CST 2014 Simulator. Maximum SAR value is 1.36 W/Kg which indicates that the KSA slogan shape microstrip wearable antennas is safe for human. The antenna can be used in the military or RFID applications.
... When the antenna is mounted on metallic object, its performance parameters like efficiency, impedance, gain and radiation pattern will be strongly affected [7]. Some techniques such as Electromagnetic Band Gap, Artificial Magnetic Conductor and High Impedance Substrate have been used in the previous research to reduce the interference from the metallic surface [8][9]. Other approach is by inserting a ground plane in the antenna structure like the inverted F-antenna (IFA) and printed inverted F-antenna (PIFA) [10][11]. ...
A compact ultra-high-frequency (UHF) RFID tag with meander feed line and double T-match structure is proposed. The tag is composed of a copper layer at the upper and bottom side of a Rogers 5880 substrate, with the relative permittivity of 2.2 and a UCODE G2XM/G2XL chip from NXP Semiconductor. The tag with the overall dimension of 58 × 34 × 0.85 mm3 is not sensitive to the objects it is attached to including metallic object since the performance of the tag in free air and on metal objects remains almost the same. The double T-matching technique is implemented in the antenna design to easily match the antenna and the chip impedance. The antenna is designed to operate in Malaysia frequency range (919 - 923 MHZ). The performance of the tag is evaluated through simulation in terms of impedance matching, reflection coefficient and reading range.
... • Demonstrate the concept (RFID system) • Demonstrate the effectiveness of RFID tag on and around metal objects which in itself is said to be a challenge [1]. • Track the movement of materials in and out of the trial area • And to demonstrate the simplicity or otherwise of using the system in a real world environment within Shell Nigeria. ...
The objective of this paper is to show that an RFID supply chain inventory management system can be a viable solution to the myriad of challenges encountered in the operation of the warehouses and stores in the petroleum development industry. This study involved the analysis of the warehouse and inventory management system in Shell Petroleum Development Company (SPDC) in Nigeria with a view of identifying current operational challenges and proffers solutions to these challenges. A systems architecture of the solution is presented in the paper and a partial prototype implemented with the purpose to highlight how modern information technology and communication tools can be used as a value added tool in the supply chain management of SPDC.
... In order to overcome this issue, many methods have been proposed to reduce dimensions of an EBG cell. They include using spiral EBG cells [11], loading lumped element in the EBG structure [12], adding multilayer dielectric substrate [13], and using Ferrite EBG structure [14]. ...
... It consisted of four parts: a ground plane, a dielectric substrate, metallic patches, and connecting vias. This EBG structure exhibited a distinct stopband for the surfacewave propagation and its operation mechanism could be explained by a combination of series LC circuits, and a parallel LC circuit as shown in Figure 1 [12][13][14][15][16][17]. In this case, the stop and start frequencies of the band gap were given by these equations [17]: ...
Electromagnetic bandgap (EBG) structures can help in the reduction of mutual coupling by their capabilities of suppressing surface wave's propagation in a specific frequency range. In this work, a dual-layer EBG structure, which had a lower resonant frequency than the single-layer one, is proposed in order to reduce the mutual coupling between E-plane coupled microstrip antenna array. As this EBG structure significantly made the series capacitance between neighbor cells larger, a drastic reduction of the unit cell size was achieved. The simulated and experimental results show that the proposed structure has a significant 19 dB mutual coupling reduction.
The effect of antenna design modification, paper substrates and relative electrical
permittivity of background materials on the reflection coefficient of UHF RFID antennas was studied. Simulation software was used to modify the design and calculate the reflection coefficient of the antennas. By modifying the coupling
of the dipole with the induction loop of the antennas, a reduction of the simulated reflection coefficient was achieved compared to the commercial antenna. The positive effect of antenna modification was also confirmed by measuring the reflection coefficient of antennas printed on paper by thermal transfer printing,
placed on extruded polystyrene and particle board. The reflection coefficient of the modified antennas was lower when placed on extruded polystyrene, whose relative electrical permittivity was lower than particle board. After installing the memory chip to the antennas printed on paper and paperboard, the identification, reading and recording range of passive UHF RFID tags were measured after they were placed on thicker paperboard, extruded polystyrene and particle board. The positive effect of antenna modification on improving the communication quality of passive UHF RFID tags placed on background materials with a relative electrical permittivity of 2.4 to 6.7 was confirmed.
Radio-frequency identification (RFID) technology has become an indispensable technology in social life. In people’s daily life, traveling, dining, shopping and so on need RFID technology for identification, even payment.
A indústria automotiva sempre ocupou um papel de destaque no mercado
global devido à grande demanda de seus produtos e à boa lucratividade obtida.
Porém, a concorrência no setor é crescente e caracterizada por ciclos de vida
de produtos cada vez menores. Neste cenário, a utilização da inovação
tecnológica é fator primordial para reduzir custos, aumentar a margem de lucro
e diminuir ciclos de vida de produtos, sem esquecer a melhoria da qualidade
dos mesmos, que garante a satisfação do consumidor final. A rastreabilidade
figura como um dos pontos de atenção e de contribuições em termos de
inovações tecnológicas, pois através dela, os fornecedores de peças e
componentes automotivos conseguem rastrear em tempo real seus produtos,
aumentar a qualidade e diminuir sensivelmente a quantidade de retrabalho em
suas linhas de produção. Além do aumento de qualidade, nos casos de recall
de peças, o valor gasto para encontrar o lote defeituoso pode ser diminuído e a
satisfação do cliente final mantida. Neste contexto, a Tecnologia da Informação
tem um papel importante na medida em que é aplicada como suporte à
rastreabilidade e permite respostas mais rápidas no armazenamento e na
consulta das informações sobre as peças que passaram nas linhas de
produção, além de garantir a globalização da informação, que pode ser
disponibilizada via web e acessada de qualquer parte do planeta. Este trabalho
discute as formas, modelos e tipos de rastreabilidade usados no setor
automotivo, bem como a aplicação da tecnologia da informação como suporte
a esses modelos. Traça também um comparativo entre os modelos de
rastreabilidade que utilizam etiqueta e o modelo com a aplicação da tecnologia
Data Matrix. Esta abordagem foi aplicada a um caso real, desenvolvido e
implantado no processo produtivo de uma empresa de componentes
automotivos, como forma de demonstrar a viabilidade da aplicação da
tecnologia e os ganhos advindos em modernas linhas de produção. Como
resultado desta comparação, conclui-se que o modelo de rastreabilidade Data
Matrix mostra-se muito superior nos quesitos de produtividade, qualidade,
tempo de marcação e custos se comparado ao modelo de etiquetas.
Palavras chaves: Rastreabilidade; Indústria Automotiva; Data Matrix.
A UHF printed meander monopole RFID tag antenna incorporating an artificial magnetic conductor (AMC) as the reflector is presented. The proposed antenna is designed to operate with a chip having an input impedance of 8.2-j61 Ω. For maximum power transfer between the chip and the antenna, T-Matching technique is implemented. The fabricated assembled tag is evaluated in both free-space and when attached to a metal plate. Measurements demonstrate achieving a maximum readable range of 10 m in free space and 8.3 m when the tag is placed on a metal sheet.
