A novel design of passive UHF RFID tag antenna mounted on paper

Ennajih, Abdelhadi; Zbitou, Jamal; Errkik, Ahmed; Tajmouati, Abdelali; Abdellaoui, Larbi El; Latrach, Mohamed

doi:10.1109/wits.2017.7934631

Cited by 8 publications

(5 citation statements)

References 19 publications

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“…For our antenna, we drew the range depending on the frequency in Figure 9(b) and we obtained a reading distance up to 14m. It was obtained by the Friss equation [24].…”

Section: Results and Analysismentioning

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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“…For our antenna, we drew the range depending on the frequency in Figure 9(b) and we obtained a reading distance up to 14m. It was obtained by the Friss equation [24].…”

Section: Results and Analysismentioning

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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“…where λ is wavelength in free space, EIRP is an effective isotropic radiated power from the reader, and Pt is the power transmitted from RFID reader. Next, the power transfer coefficient, τ, which measures level of antenna impedance matching to the chip impedance, can be calculated using equation (8), as follows:…”

Section: Resultsmentioning

confidence: 99%

“…The body proximity causes absorption, diffraction and scattering of electromagnetic waves, which then changes in the antenna impedance, resonant frequency and read range [7]. Such performance variation may be alleviated by the integration of metamaterial elements in improving the tag antenna's performance [8]. Metamaterial are artificially engineered materials and have unique properties which cannot be found in natural materials such as negative permeability or negative permittivity.…”

Section: Introductionmentioning

confidence: 99%

A Flexible and Compact Metamaterial UHF RID Tag for Remote Sensing in Human Health

Fazilah

Jusoh

Sabapathy

et al. 2020

2020 International Conference on UK-China Emerging Technologies (UCET)

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This paper presents a miniaturized UHF RFID tag antenna with increased gain using meander line techniques and metamaterial (MTM). The designed tag operates in the UHF RFID frequency band ranging from 860 to 960 MHz. It comprises of meandered lines with two hexagonal split ring resonators (H-SRRs) MTM cells. It is designed on a photo paper as its substrate which is 0.27 mm thick, with a dielectric constant of 3.2 and loss tangent of 0.05. Next, an RFID tag (NXP SL3S1213 UCODE G2iL chip) with an impedance of 23-j224 Ω is integrated with the proposed antenna to assess its performance in terms of reflection coefficient, antenna gain and maximum reading range. The overall size of the tag is 92 mm x 26 mm.

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“…RFID technology has been rapidly developing in recent years; it can be applied in many service industries, distribution, discard goods management, animal control, security, logistic, manufacturing companies [2]. Several frequency bands have been allowed to the RFID technology, such as low-frequency LF (125 KHz-134 KHz), high-frequency HF (13.56MHz), ultra-high frequency UHF (860MHz-960MHz) and microwave band MW (2.45GHz or 5.8GHz) [3]. However, the UHF band is preferred in many applications due to the merits of high data transfer rate broad readable range.…”

Section: Introductionmentioning

confidence: 99%