Ultra-wide-band SAW RFID/sensors

Plessky, V.P.; Lamothe, Marc

doi:10.1109/eftf.2014.7331416

Cited by 4 publications

(5 citation statements)

References 17 publications

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“…Différentes options sont envisageables dans ce même esprit, tel que l'utilisation de code de phase [22] pour donner une spécificité spectrale à la réponse impulsionnelle du capteur. Dans l'idée d'ajuster la fonction de transfert du dispositif aux variations de la grandeur physique à mesurer, une distribution hyperbolique plutôt que linéaire des électrodes au sein du transducteur a été proposée [23]. Contrairement au cas du corrélateur linéaire présenté plus haut, celui-ci permet la fonction de corrélation quelles que soient les variations de la grandeur physique d'intérêt.…”

Section: Usunclassified

Capteurs acousto-électriques radiofréquences – Modes d'interrogation

Friedt¹,

Ballandras²

2020

Électronique

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Section: Usunclassified

Capteurs acousto-électriques radiofréquences – Modes d'interrogation

Friedt¹,

Ballandras²

2020

Électronique

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“…In addition, delay line sensors with reflective grids have further reduced size compared to other sensors of the same type. In recent years, several groups have reported some SAW delay line temperature sensors based on reflective gratings [ 14 , 15 , 16 ]. However, the sensitivity of delay line sensors depends on the delay time.…”

Section: Introductionmentioning

confidence: 99%

Ultra-High Frequency Surface Acoustic Wave Sensors for Temperature Detection

Dong,

Yang,

Liu

et al. 2024

Micromachines

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Highly sensitive surface acoustic wave (SAW) sensors have recently been recognized as a promising tool for various industrial and medical applications. However, existing SAW sensors generally suffer from a complex design, large size, and poor robustness. In this paper, we develop a simple and stable delay line ultra-high frequency (UHF) SAW sensor for highly sensitive detection of temperature. A Z-shaped delay line is specially designed on the piezoelectric substrate to improve the sensitivity and reduce the substrate size. Herein, the optimum design parameters of extremely short-pitch interdigital transducers (IDTs) are given by numerical simulations. The extremely short pitch gives the SAW sensor ultra-high operating frequency and consequently ultra-high sensitivity. Several experiments are conducted to demonstrate that the sensitivity of the Z-shaped SAW delay line sensor can reach up to 116.685°/°C for temperature detection. The results show that the sensor is an attractive alternative to current SAW sensing platforms in many applications.

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“…Although several other review papers have already been published in the area of chipless RFID tagging and sensing, the current reviews are somewhat incomplete. Many reviews discuss one branch of this technology space in isolation, e.g., Surface Acoustic Wave (SAW) solutions, as seen in Reference [12] by Plessky and Reindl, or Time Domain solutions only, as seen in the work of Forouzandeh and Karmakar [13]. Similarly, other reviews focus on several branches of this domain but leave others out.…”

Section: Introductionmentioning

confidence: 99%

“…Although no direct comparison is made between time- and spectral-based tag designs, the reader is free to draw their own conclusions on this topic, based on the content of the comparison tables in the two respective sections. One such table, in the Addressing section, references several papers that are discussed thoroughly in the main body along with other tags which are discussed in References [11,12,13]. Such tags are beyond the scope of detailed discussion in this manuscript.…”

Section: Introductionmentioning

confidence: 99%

A Review of Chipless Remote Sensing Solutions Based on RFID Technology

Gee

Anandarajah

Collins

2019

Sensors

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Chipless Radio Frequency Identification (RFID) has been used in a variety of remote sensing applications and is currently a hot research topic. To date, there have been a large number of chipless RFID tags developed in both academia and in industry that boast a large variation in design characteristics. This review paper sets out to discuss the various design aspects needed in a chipless RFID sensor. Such aspects include: (1) Addressing strategies to allow for unique identification of the tag, (2) Sensing mechanisms used to allow for impedance-based response signal modulation and (3) Sensing materials to introduce the desired impedance change when under the influence of the target stimulus. From the tabular comparison of the various sensing and addressing techniques, it is concluded that although many sensors provide adequate performance characteristics, more work is needed to ensure that this technology is capable/robust enough to operate in many of the applications it has been earmarked for.

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Ultra-wide-band SAW RFID/sensors

Cited by 4 publications

References 17 publications

Capteurs acousto-électriques radiofréquences – Modes d'interrogation

Capteurs acousto-électriques radiofréquences – Modes d'interrogation

Ultra-High Frequency Surface Acoustic Wave Sensors for Temperature Detection

A Review of Chipless Remote Sensing Solutions Based on RFID Technology

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