Special Issue "Chipless RFID Technologies"

A special issue of Technologies (ISSN 2227-7080). This special issue belongs to the section "Information and Communication Technologies".

Deadline for manuscript submissions: closed (31 May 2018)

Special Issue Editors

Guest Editor
Dr. Simone Genovesi

Information Engineering Department - University of Pisa, Italy
Website | E-Mail
Interests: metamaterials; chipless RFID and sensors; characteristic modes; antenna design; optimization algorithms
Guest Editor
Mr. Cristian Herrojo

Information Department of Electrical and Electronic Engineering – Universitat Autònoma de Barcelona, Spain
Website | E-Mail
Interests: metamaterials; chipless RFID and sensors; RFID passive microwave devices
Guest Editor
Prof. Dr. Smail Tedjini

Grenoble-INP, University of Grenoble Alpes, LCIS, F-26900, Valence, France
Website | E-Mail
Interests: applied electromagnetism; RF; wireless systems; optoelectronics

Special Issue Information

Dear Colleagues,

The scientific research and industrial applications dealing with Radio Frequency IDentification (RFID) have been growing at a fast pace in the last few years. A new technological paradigm has been recently proposed to realize RF labels and sensors: The chipless RFID. This novel solution does not rely on any Integrated Circuit for storing the information or monitoring a physical parameter but exploits encoding mechanisms and sensing features based on a suitably tailored frequency or time domain fingerprint. Although many solutions have been proposed, several challenges require further scientific efforts and technological improvements at any level of the system.

This Special Issue is intended to report the recent advances in new chipless RFID tag solutions and innovative sensors, chipless reader, robust and reliable tag/sensor reading processes, algorithms for improving the system performance.

Articles in this Special Issue will address topics that include: Novel chipless RFID tags and sensors realized with ink-jet printing, additive manufacturing and dielectric resonators; chipless sensors for extreme environments; security and anticounterfeiting applications, algorithms and procedures for calibration and reliable reading.

Dr. Simone Genovesi
Mr. Cristian Herrojo
Prof. Dr. Smail Tedjini
Guest Editors

Manuscript Submission Information

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Technologies is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 350 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Chipless RFID tags/sensors
  • Internet of Things
  • Industrial, security and anticounterfeiting applications
  • Extreme environment applications
  • Chipless reader
  • Data processing
  • Innovative materials for chipless RFID sensors
  • Green chipless RFID sensors/tags
  • Ink-jet printed, 3D-printed and dielectric chipless RFID tags/sensors
  • Chipless RFID system
  • Novel measurement techniques for robust and reliable decoding
  • Semi passive chipless RFID tags/sensors

Published Papers (5 papers)

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Research

Open AccessArticle Influence of Mutual Coupling on Stability of RCS Response in Chipless RFID
Technologies 2018, 6(3), 67; https://doi.org/10.3390/technologies6030067
Received: 31 May 2018 / Revised: 10 July 2018 / Accepted: 14 July 2018 / Published: 17 July 2018
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Abstract
The paper investigates the influence of mutual coupling between individual scatterings of chipless Radio Frequency Identification (RFID) tags based on its frequency-domain performance using a simplified equivalent circuit model. The proposed steady state analysis predicts a fast and satisfactory amplitude level and frequency
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The paper investigates the influence of mutual coupling between individual scatterings of chipless Radio Frequency Identification (RFID) tags based on its frequency-domain performance using a simplified equivalent circuit model. The proposed steady state analysis predicts a fast and satisfactory amplitude level and frequency position of resonant peaks of a predicted radar cross section (RCS) response. The proposed approach is capable of pre-evaluating a suitability of the particular scattered topology for implementing in chipless RFID tags. It is demonstrated on two different geometries. Full article
(This article belongs to the Special Issue Chipless RFID Technologies)
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Open AccessArticle Chipless Radio Frequency Identification (RFID) Sensor for Angular Rotation Monitoring
Technologies 2018, 6(3), 61; https://doi.org/10.3390/technologies6030061
Received: 31 May 2018 / Revised: 25 June 2018 / Accepted: 26 June 2018 / Published: 29 June 2018
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Abstract
A novel, chipless, Radio Frequency Identification (RFID) sensor is proposed for monitoring angular rotation. The rotation state is recovered by collecting the cross polar response of a tag, based on a periodic surface composed of a set of dipoles. The encoding mechanism allows
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A novel, chipless, Radio Frequency Identification (RFID) sensor is proposed for monitoring angular rotation. The rotation state is recovered by collecting the cross polar response of a tag, based on a periodic surface composed of a set of dipoles. The encoding mechanism allows the sensor to be very robust, even if it is applied on metallic objects, or in an environment with strong multipath. The proposed sensor does not require a large operational bandwidth. Instead, only a small set of reading frequencies are required. The number of reading frequencies required is dependent on the number of the employed dipoles. It is demonstrated that the rotation state of an object can be monitored within a span of 180 degrees, with up to a three-degree resolution, by employing a chipless RFID sensor comprising of four dipoles. The far field reading scheme and the absence of any electronics device allow the sensor to be employed in harsh environments. Full article
(This article belongs to the Special Issue Chipless RFID Technologies)
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Open AccessFeature PaperArticle Compact Multi Bit Slotted C-Scatterer for Threshold Sensitive Chipless Wireless Temperature Sensor
Technologies 2018, 6(3), 59; https://doi.org/10.3390/technologies6030059
Received: 25 May 2018 / Revised: 20 June 2018 / Accepted: 24 June 2018 / Published: 28 June 2018
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Abstract
This paper presents a novel compact scatterer structure for a passive chipless wireless temperature threshold sensor. The structure is based on a single C-scatterer with multiple embedded slots; each slot forms a sub-scatterer dedicated to resonating in one regulated band. This structure has
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This paper presents a novel compact scatterer structure for a passive chipless wireless temperature threshold sensor. The structure is based on a single C-scatterer with multiple embedded slots; each slot forms a sub-scatterer dedicated to resonating in one regulated band. This structure has the advantage of increasing the data capacity without increasing the number of scatterers, which results in a more compact sensor size. The sensing principle is based on the detuning of the resonance frequency peaks of the backscattered signal from the slotted scatterer due to temperature variations. For the first time, this work demonstrates the design of a passive chipless sensor while at the same time respecting the conventional radio frequency (RF) emission regulations. The sensor only exploits the allowed bands: European Telecommunications Standards Institute (ETSI) and Industrial, Scientific and Medical (ISM). Sensitivity measurement results show sensitive characteristics in the order of 10−4 GHz/°C in accordance with the theoretical predictions. Full article
(This article belongs to the Special Issue Chipless RFID Technologies)
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Open AccessArticle Electronically Re-Configurable, Non-Volatile, Nano-Ionics-Based RF-Switch on Paper Substrate for Chipless RFID Applications
Technologies 2018, 6(3), 58; https://doi.org/10.3390/technologies6030058
Received: 11 May 2018 / Revised: 15 June 2018 / Accepted: 25 June 2018 / Published: 27 June 2018
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Abstract
This article reports the first results of a Nafion®-based, solid state, non-volatile, electronically reconfigurable Radio Frequency (RF)-switch integrated to a co-planar waveguide transmission line (CPW) in shunt mode, on a flexible paper substrate. The switch is based on a metal–insulator–metal structure
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This article reports the first results of a Nafion®-based, solid state, non-volatile, electronically reconfigurable Radio Frequency (RF)-switch integrated to a co-planar waveguide transmission line (CPW) in shunt mode, on a flexible paper substrate. The switch is based on a metal–insulator–metal structure formed respectively using Silver–Nafion–aluminum switching layers. The presented device is fully passive and shows good performance till 3 GHz, with an insertion loss less than 3 dB in the RF-on state and isolation greater than 15 dB in the RF-off state. Low-power direct current pulses in the range 10 V/0.5 mA and −20 V/0.15 A are used to operate the switch. The device was fabricated in an ambient laboratory condition, without the use of any clean room facilities. A brief discussion of the results and potential application of this concept in a re-configurable chipless RFID tag is also given in this article. This study is a proof of concept of fabrication of electronically re-configurable and disposable RF-electronic switches on low cost and flexible substrates, using a process feasible for mass production. Full article
(This article belongs to the Special Issue Chipless RFID Technologies)
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Open AccessArticle Very Low-Cost 80-Bit Chipless-RFID Tags Inkjet Printed on Ordinary Paper
Technologies 2018, 6(2), 52; https://doi.org/10.3390/technologies6020052
Received: 12 March 2018 / Revised: 17 May 2018 / Accepted: 18 May 2018 / Published: 22 May 2018
Cited by 1 | PDF Full-text (2496 KB) | HTML Full-text | XML Full-text
Abstract
This paper presents a time-domain, chipless-RFID system with 80-bit tags inkjet-printed on ordinary DIN A4 paper. The tags, consisting of a linear chain of resonant elements (with as many resonators as the number of identification bits plus header bits), are read sequentially and
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This paper presents a time-domain, chipless-RFID system with 80-bit tags inkjet-printed on ordinary DIN A4 paper. The tags, consisting of a linear chain of resonant elements (with as many resonators as the number of identification bits plus header bits), are read sequentially and by proximity (through near-field coupling). To this end, a transmission line, fed by a harmonic (interrogation) signal tuned to the resonance frequency of the tag resonators (or close to it), is used as a reader. Thus, during reader operation, the tag chain is mechanically shifted over the transmission line so that the coupling between the line and the functional resonant elements of the tag chain is favored. Logic states that ‘1’ and ‘0’ are determined by the functionality and non-functionality (resonator detuning), respectively, of the resonant elements of the chain. Through near-field coupling, the transmission coefficient of the line is modulated and, as a result, the output signal is modulated in amplitude (AM), which is the identification code contained in the envelope function. As long as the tags are inkjet-printed on ordinary DIN A4 paper, the cost is minimal. Moreover, such tags can be easily programmed and erased, so that identical tags can be fabricated on a large scale (and programmed at a later stage), further reducing the cost of manufacture. The reported prototype tags, with 80 bits of information plus four header bits, demonstrate the potential of this approach, which is of particular interest to secure paper applications. Full article
(This article belongs to the Special Issue Chipless RFID Technologies)
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