Investigations into improving the detectability of self‐resonant RFID tags

Al-Azzawi, Baraa F.; Rigelsford, Jon; Langley, Richard J.

doi:10.1049/iet-map.2017.1205

Cited by 6 publications

(1 citation statement)

References 14 publications

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“…It is widely used in inventory systems, distribution logistics, retail sales, industries, and general detection systems [3][4][5]. A typical RFID system consists of several components: an RFID interrogator and an RFID tag antenna, which comprises an IC chip and an antenna [6]. The reading range of the tag antenna depends on its efficiency and gain and the minimum threshold power of the IC chip [7].…”

Section: Introductionmentioning

confidence: 99%

Low-profile folded dipole UHF RFID tag antenna with outer strip lines for metal mounting application

Erman¹,

Hanafi²,

Lim³

et al. 2020

Turk J Elec Eng & Comp Sci

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A metal mountable UHF RFID tag antenna with a low-profile folded dipole structure is proposed. It is fabricated on a single layer of polytetrafluoroethylene (PTFE) dielectric laminate. It is composed of two symmetrical C-shape resonators integrated with the outer strip lines. The IC chip's terminals are connected directly to the center of the C-shaped resonators. The outer strip lines are integrated with the C-shaped resonators, which function to lower the reflection coefficient so as to match the IC chip impedance. In particular, the outer strip lines increase the inductive reactance of the antenna impedance in order to realize IC chip impedance. The design has a simple structure, due to the fact that it lacks any metallic vias. Moreover, the gain of the tag antenna can be enhanced when positioned on a large metallic sheet. Installed on a 40 × 40 cm 2 metallic plate, the total gain of the proposed tag antenna is 3 dB, with a maximum reading range of 5.77 m, while it is 3.92 m in free space. The simulation results were in excellent agreement with the fabricated design results.

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Section: Introductionmentioning

confidence: 99%

Low-profile folded dipole UHF RFID tag antenna with outer strip lines for metal mounting application

Erman¹,

Hanafi²,

Lim³

et al. 2020

Turk J Elec Eng & Comp Sci

View full text Add to dashboard Cite

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Biodegradable Implantable Sensors: Materials Design, Fabrication, and Applications

Ashammakhi

Hernández

Unluturk

et al. 2021

Adv Funct Materials

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The ability to monitor diseases, therapies, and their effects on the body is a critical component of modern care and personalized medicine. Real time monitoring can be achieved by analyzing body fluids or by applying sensors on, or alternatively, inside the body. Implantable sensors, however, must be removed. Second removal procedures lead to further tissue damage, which can be a problem in tissues such as those of the central nervous system. The use of biodegradable sensors alleviates these problems since they do not require removal procedures. Recent advances in material science made it possible for all sensor components to be biodegradable. Small size and power of implants, and the limited selection of materials are the main constraints determining the capabilities of the biodegradable device. Thus, the design will be always a challenge exploring a trade-off among these parameters. Despite of the encouraging results illustrating that biodegradable sensors can be as accurate and reliable as commercially available nondegradable ones, biodegradable implantable sensors are still in their infancy. Significant advances made in this area are critically reviewed in this paper, and future prospects are highlighted.

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