Chipless RFID tags for passive wireless sensor grids

Perret, Etienne; Nair, Raji Sasidharan; Kamel, Emna Bel; Vena, Arnaud; Tedjini, Smaïl

doi:10.1109/ursigass.2014.6929404

Cited by 9 publications

(6 citation statements)

References 12 publications

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“…The group delay characteristics of the C-section/hairpin resonator are exploited by Perret et al [7] and Nair et al [75] for the purposes of humidity sensing. These implementations deposit silicon (Si) nanowires on the resonator to allow for the shorting of the resonator at a shorter distance along its length.…”

Section: Rfid Sensor Implementationsmentioning

confidence: 99%

“…Integrating sensing elements into existing RFID technology has brought forward great possibilities in the remote sensing of temperature [5,6], humidity [7,8], strain [9,10] and other environmental stimuli. Such integrations usually involve the addition of a stimulus-sensitive coating to an existing chipless RFID tag, which results in a tag whose interrogation response is related to the stimulus of interest.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Rfid Sensor Implementationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Review of Chipless Remote Sensing Solutions Based on RFID Technology

Gee

Anandarajah

Collins

2019

Sensors

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“…Indeed, it is possible in chipless RFID to interrogate several tags at the same time. In such case, a specific encoding technique that allows to address the problem of collision in chipless has to be used [19]. To separate the response of one tag from the other, a principle of discrimination in frequency can be implemented.…”

Section: Generalization Of the Displacement Sensor Approachmentioning

confidence: 99%

“…This is possible only if the tag used to realize the measurement can be also associated to an identifier. It is therefore possible, like in UHF RFID, to set up a wireless sensor network without chip to make low cost and potentially dispose sensor tags [19]. In addition to the accuracy improvement, taking off the chip allows reducing the cost, increasing the duration of life, and the mechanical robustness in terms of vibration and temperature [2].…”

Section: Introductionmentioning

confidence: 99%

Displacement Sensor Based on Radar Cross-Polarization Measurements

Perret

2017

IEEE Trans. Microwave Theory Techn.

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This article presents the feasibility of measuring submillimeter displacements of objects in real environments using simple resonant radar targets. These scatterers, also known as chipless tags, have their own radar signature that can be used not only for identification but also for sensing. The chipless RFID is a highly promising technology since it paves the way for the development of easily implementable communication systems where tags have costs similar to barcodes. Object displacements are extracted by just evaluating at different times the variation of the signals backscattered in cross polarization from the tags. Based on this analog RFID sensing principle, an analytical model is developed to perform the direct derivation of the displacements. Therefore, the approach does not require complex and specific calibration procedures based on lookup table for compensating variations due to the presence of surrounding unknown objects. It is possible to add this functionality to already designed chipless RFID tag operating in cross-polarization without decreasing their coding capacity. Experimentations inside and outside anechoic chamber have been done, and very good agreement was obtained with simulations. It has been proved that sub-millimeter displacements can be monitored with this approach. Chipless tag displacement of 0.5 mm with less than ±45 µm error can be detected in real environment for a read range of up to 40 cm.

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“…Some techniques are presented in [29] but are best suited for the Surface Acoustic Wave (SAW) chipless tags. The following experiment shows that it is possible to detect two sensors at a time using the technique of anti-collision based on spectral separation [30]. For this purpose, we need to use two resonators having different resonant frequencies.…”

Section: Handling Of Two Sensors At a Timementioning

confidence: 99%

Toward a Reliable Chipless RFID Humidity Sensor Tag Based on Silicon Nanowires

Vena

Perret

Kaddour

et al. 2016

IEEE Trans. Microwave Theory Techn.

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This paper presents a chipless RFID sensor tag having both identification and sensing capabilities. It is based on one resonant scatterer operating as a signal processing antenna in the 3 to 7.5 GHz band. The scatterer is used to monitor a physical parameter variation, as well as to identify the remote sensor. To make a resonator sensitive to the humidity, silicon nanowires are deposited on the tag surface using a simple process. The tag needs only one conductive layer so that it can be directly printed on the products to sense and to identify. Measurements done using a bistatic radar configuration in the frequency domain validate this concept. To demonstrate the reliability of such an application, two chipless RFID sensors placed in various environments are simultaneously detected using an anti-collision technique based on spectral separation.

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Chipless RFID tags for passive wireless sensor grids

Cited by 9 publications

References 12 publications

A Review of Chipless Remote Sensing Solutions Based on RFID Technology

A Review of Chipless Remote Sensing Solutions Based on RFID Technology

Displacement Sensor Based on Radar Cross-Polarization Measurements

Toward a Reliable Chipless RFID Humidity Sensor Tag Based on Silicon Nanowires

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