A Novel Design of Miniaturized Tag Antenna Loaded Metamaterial Spiral Split Ring Resonator

Ennajih, Abdelhadi; Nasiri, Badr; Zbitou, Jamal; Errkik, Ahmed; Latrach, Mohamed

doi:10.22266/ijies2019.0430.02

Cited by 5 publications

(4 citation statements)

References 13 publications

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“…For massive industrial usage, the read range (RR) is another debatable boundary of IoT in smart 5G systems. In this way, it cannot be disregarded when an RFID tag is examined and the Friis conditions assume a significant job to uncover the RR ( d max,read ) [ 10 , 26 , 31 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 ], as shown in Equation (5):

where c (speed of light) = 3 × 10 8 m/s, f is the targeted frequency, the EIRP (effective isotropic radiated power) is set as a standard by state spectrum regulations—for example, EIRP = 3.28 W for the EU UHF standard and EIRP = 4 W for the NA UHF standard— τ is the transmission loss, and P chip,tag = 0.0316 × 10 −3 W (−15 dBm). τ should be unity or less than unity, and it is calculated using the resistances and impedances of the flip-chip package and the manufactured antenna.…”

Section: Resultsmentioning

confidence: 99%

A Compact and Flexible UHF RFID Tag Antenna for Massive IoT Devices in 5G System

Hussain

Amin

Lee

2020

Sensors

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Upcoming 5th-generation (5G) systems incorporate physical objects (referred to as things), which sense the presence of components such as gears, gadgets, and sensors. They may transmit many kinds of states in the smart city context, such as new deals at malls, safe distances on roads, patient heart rhythms (especially in hospitals), and logistic control at aerodromes and seaports around the world. These serve to form the so-called future internet of things (IoT). From this futuristic perspective, everything should have its own identity. In this context, radio frequency identification (RFID) plays a specific role, which provides wireless communications in a secure manner. Passive RFID tags carry out work using the energy harvested among massive systems. RFID has been habitually realized as a prerequisite for IoT, the combination of which is called IoT RFID (I-RFID). For the current scenario, such tags should be productive, low-profile, compact, easily mountable, and have eco-friendly features. The presently available tags are not cost-effective and have not been proven as green tags for environmentally friendly IoT in 5G systems nor are they suitable for long-range communications in 5G systems. The proposed I-RFID tag uses the meandering angle technique (MAT) to construct a design that satisfies the features of a lower-cost printed antenna over the worldwide UHF RFID band standard (860–960 MHz). In our research, tag MAT antennas are fabricated on paper-based Korsnäs by screen- and flexo-printing, which have lowest simulated effective outcomes with dielectric variation due to humidity and have a plausible read range (RR) for European (EU; 866–868 MHz) and North American (NA; 902–928 MHz) UHF band standards. The I-RFID tag size is reduced by 36% to 38% w.r.t. a previously published case, the tag gain has been improved by 23.6% to 33.12%, and its read range has been enhanced by 50.9% and 59.6% for EU and NA UHF bands, respectively. It provides impressive performance on some platforms (e.g., plastic, paper, and glass), thereby providing a new state-of-the-art I-RFID tag with better qualities in 5G systems.

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Section: Resultsmentioning

confidence: 99%

A Compact and Flexible UHF RFID Tag Antenna for Massive IoT Devices in 5G System

Hussain

Amin

Lee

2020

Sensors

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“…The metamaterial structure was simulated under the CST MWS software to extract its effective parameters in order to verify the metamaterial effect around the desired band at the operating frequency of our antenna. Figure 3 The method that we have used for extracting the actual parameters is known as the Nicolson-Ross-Weir method [21][22][23]. It uses the following characterization equations: where: n is the refractive index, z is the wave impedance, S11 is the reflection coefficient, S21 is the transmission coefficient, k is the wave number and, d is the metamaterial unit cell thickness.…”

Section: Metamaterials Unit Cellmentioning

confidence: 99%

A wearable UHF RFID tag antenna-based metamaterial for biomedical applications

Ennajih¹,

Nasiri²,

Zbitou³

et al. 2020

Bulletin EEI

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The development of miniature antennas for bio-medical applications has attracted the attention of many researchers in the last years. In this letter, we provide a miniature antenna for the RFID tag for identifying patients in African and European hospitals. The proposed antenna is designed on a flexible silicon substrate with a relative dielectric constant of 11.9 and a thickness of 1.6mm. An in-depth study of the proposed wearable antenna was made in free space and on human tissue. The achieved results showed good performance in terms of miniaturization, bandwidth, impedance matching and, reading distance. The presented tag antenna is designed and simulated by using CST-MWS solver and the results were validated by HFSS and both results are in good agreement.

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“…This resonator is a complementary split ring resonator. Planar metamaterials that are composed of complementary structures like CSRR have been widely used in the design of microwave components to achieve compact and small antennas, miniature filters, power dividers, and other radiofrequency devices [19][20][21][22][23][24][25][26].…”

Section: Metamaterials Resonatormentioning

confidence: 99%

Band-pass filter based on complementary split ring resonator

Nasiri¹,

Ennajih²,

Errkik³

et al. 2020

TELKOMNIKA

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This letter presents a new circuit of the band-pass filter designed by using microstrip technology. Based on complementary split ring resonator and various series of optimization technic and a specific design method, a miniature band-pass filter with excellent electrical performances is achieved. First of all, the metamaterial unit cell is studied to obtain a desired resonant frequency and it is implemented in the ground plan in order to increase the characteristics of the bandpass behavior and decrease its operating frequencies. This proposed circuit is designed on an FR-4 substrate having a relative permittivity of 4.4 tangential losses of 0.025 and thickness of 1.6 mm. This filter is developed by using CST Microwave. The obtained features allow this filter to be used in diverse wireless applications such as IMT-E and WiMax.

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A Novel Design of Miniaturized Tag Antenna Loaded Metamaterial Spiral Split Ring Resonator

Cited by 5 publications

References 13 publications

A Compact and Flexible UHF RFID Tag Antenna for Massive IoT Devices in 5G System

A Compact and Flexible UHF RFID Tag Antenna for Massive IoT Devices in 5G System

A wearable UHF RFID tag antenna-based metamaterial for biomedical applications

Band-pass filter based on complementary split ring resonator

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