Gain-optimized self-resonant meander line antennas for RFID applications

Marrocco, Gaetano

doi:10.1109/lawp.2003.822198

Cited by 227 publications

(126 citation statements)

References 4 publications

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“…To devise a method by which the construction of a generalised meander line can be parametrically described, and incrementally altered, is not a simple task. By limiting the structure to a simplified, prescribed form, there have been some studies of simple RFID antennas [13], [14] using genetic algorithms (GA). Another approach with greater generality, but a radically different approach to the antenna structure, used a GA to optimise a patch antenna [15].…”

Section: Aco Applied To Constructing Rfid Antennasmentioning

confidence: 99%

“…Many traditionally-designed RFID antenna structures follow the form of the "plough", as shown in Figure 1 (see, for example, Marrocco [13]). However, the structures identified as approaching optimal performance in the previously described multi-objective studies consistently took the form of a "spiral" (see, for example, Figure 3).…”

Section: Pheromone Pre-seedingmentioning

confidence: 99%

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Pheromone Pre-seeding for the Construction of RFID Antenna Structures Using ACO

Weis

Lewis

Randall

et al. 2010

2010 IEEE Sixth International Conference on E-Science

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Abstract-Ant colony optimisation is often used to construct solutions to problems for which it has no a-priori knowledge. However, decision makers and designers often have insight and practical experience concerning what constitutes good and acceptable solutions. In this paper we exploit this knowledge by applying a pre-seeding procedure to the initial pheromone structure. Using the real-world RFID antenna design problem, we show that very good solutions can be produced. Moreover, this technique allows fine tuning of the search procedure.

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Section: Aco Applied To Constructing Rfid Antennasmentioning

confidence: 99%

Section: Pheromone Pre-seedingmentioning

confidence: 99%

Pheromone Pre-seeding for the Construction of RFID Antenna Structures Using ACO

Weis

Lewis

Randall

et al. 2010

2010 IEEE Sixth International Conference on E-Science

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“…The fitness function to maximize is (4) where are the frequencies at which the RFID should be best matched to the chip, and are arbitrary weights. The optimization problem is solved using a Genetic Algorithm (GA) [7] procedure, already successfully applied to meander-line tag design [8]. To simplify the electromagnetic computation, required to calculate the gain and the impedance of each antenna of the GA population in presence of the tagged body, a canonical reference geometry is assumed for the target, consisting of a homogeneous dielectric slab, of permittivity , orthogonal to the axis and bounded within .…”

Section: Optimization Problemmentioning

confidence: 99%

Meandered-Slot Antennas for Sensor-RFID Tags

Calabrese

Marrocco

2008

Antennas Wirel. Propag. Lett.

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Abstract-This letter introduces a planar antenna layout suited to Sensor-RFID fabrication. The geometry is based on a meandered-slot profile on a suspended patch and permits to host sensors and electronics in a small space. The available geometrical parameters are optimized by means of a Genetic Algorithm (GA) procedure aimed to maximize the antenna realized gain. The antenna performances are discussed through examples and prototypes.

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“…Passive UHF-RFID tags consist of an antenna matched to an application specific integrated circuit (ASIC), usually by means of a T-match network [2,3]. RFID tag antennas are typically based on electric half-wave dipoles, which are meandered [4] in order to shrink tag dimensions, since size reduction is one of the most challenging aspects in RFID.…”

Section: Introductionmentioning

confidence: 99%

2-SR-based electrically small antenna for RFID applications

et al. 2016

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In this work, the 2-turns Spiral Resonator (2-SR) is proposed as an electrically small antenna for passive radio frequency identification (RFID) tags at the European UltraHigh Frequency (UHF) band. The radiation properties are studied in order to explore the viability of the 2-SR applied to tag antenna design. Based on analytical calculations, the radiation pattern is found to provide a cancellation of the radiation nulls. This results in a mitigation of the blind spots in the read range, which are present in typical UHF-RFID tags as an undesired feature. As a proof of concept, a passive tag of size 35 mm x 40 mm (λ 0 /10 x λ 0 /9) based on the 2-SR antenna is designed and fabricated. Good radiation efficiency (75%) and a quasi-isotropic radiation pattern are obtained. The experimental tag read range for different directions is in good agreement with the simulation results. The measured read range exhibits maximum and minimum values of 6.7 m and 3.5 m, respectively.

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Gain-optimized self-resonant meander line antennas for RFID applications

Cited by 227 publications

References 4 publications

Pheromone Pre-seeding for the Construction of RFID Antenna Structures Using ACO

Pheromone Pre-seeding for the Construction of RFID Antenna Structures Using ACO

Meandered-Slot Antennas for Sensor-RFID Tags

2-SR-based electrically small antenna for RFID applications

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