Near-Field Chipless-RFID System With Erasable/Programmable 40-bit Tags Inkjet Printed on Paper Substrates

Herrojo, Cristian; Mata-Contreras, Javier; Paredes, Ferran; Núñez, Alba; Ramón, Eloi; Martín, Ferran

doi:10.1109/lmwc.2018.2802718

Cited by 71 publications

(41 citation statements)

References 10 publications

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“…The reader consists not only of the SRR-loaded line but also the envelope detector, plus additional electronics that are necessary to generate the harmonic (interrogation) signal. In numerous studies by Herrojo et al [50][51][52][53][54][55], the envelope detector was implemented by means of a Schottky diode (Avago HSMS-2860), an active probe which acts as a low-pass filter (with R = 1 MΩ and C = 1 pF) and an isolator to prevent reflections from the diode. In this work, an integrated circuit (Analog Devices ADL5511), able to provide the envelope function (hence reducing cost), was alternatively used.…”

Section: The Readermentioning

confidence: 99%

Very Low-Cost 80-Bit Chipless-RFID Tags Inkjet Printed on Ordinary Paper

et al. 2018

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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.

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Section: The Readermentioning

confidence: 99%

Very Low-Cost 80-Bit Chipless-RFID Tags Inkjet Printed on Ordinary Paper

et al. 2018

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“…Then, the tag code can be estimated from the echoes reflected from a set of reflectors implemented on the tag attached to an object. In other words, existence or absence of these echoes and their time positions are used to identify the tag code [2,3]. In frequency domain (FD) based tags, the RFID reader interrogates the tag with an RF signal and then the tag retransmits the frequency signature to the reader.…”

Section: Introductionmentioning

confidence: 99%

“…In the hybrid domain (HD) encoding techniques, more than one domain is used [9,10]. However, as mentioned in [3], for significant numbers of bits, HD Figure 1 shows the proposed DP chipless RFID tag. This tag consists of a conductive rectangular patch overloaded with sets of inverted M slots.…”

Section: Introductionmentioning

confidence: 99%

Compact Printable Inverted-M Shaped Chipless RFID Tag Using Dual-Polarized Excitation

et al. 2019

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A novel and compact dual-polarized (DP) chipless radio-frequency identification (RFID) tag is presented in this paper. This tag can read both vertical and horizontal orientations within its frequency band, which improves the robustness and detection capability of the RFID system. The proposed tag makes use of the slot length variation encoding technique to improve the encoding capacity. This technique can duplicate the encoding capacity, thereby reducing the overall tag size by almost 50%. In particular, the proposed tag has an encoding capacity of 20 bits in the 3–8 GHz frequency band and achieves data density of around 15.15 bits/cm2. Three prototypes are fabricated and tested outside an anechoic chamber. Furthermore, one tag is tested at different distances (10 cm, 30 cm, and 60 cm) from the reader and the measured results are compared. The simulated and measured results are in reasonable agreement, with acceptable shifts at some frequencies due to fabrication and experimental errors.

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“…If a single RFID tag is used, to save cost, documents can be stolen with a little damage caused to the tag. Recently, chipless RFID technology has been studied to overcome the disadvantages of using this RFID chip [7,8]. In [7], the miniaturized chipless RFID was proposed for identification sensor using millimeter wave and designed by applying cavity structure.…”

Section: Introductionmentioning

confidence: 99%

“…However, in order to realize a cavity effect, a via hole process is required together with a substrate having a certain thickness, so that it can be applied only to a limited physical range of documents where security is required. Another study of chipless RFID is [8]. In this paper, chipless RFID with split ring resonator (SRR) structure was designed and printed by printing conductive ink on A4 paper.…”

Section: Introductionmentioning

confidence: 99%

Security Paper Design with Frequency-Selective Structure for X-Band Electromagnetic Detection System

Lee

Kim²,

Kim³

et al. 2018

International Journal of Antennas and Propagation

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This study designed and fabricated a frequency-selective structure-based security paper for the electromagnetic detection system of a security gate, which aims to prevent leakage of confidential documents. When a functional paper embedded with a frequency-selective pattern that selectively reflects a specific frequency is being leaked out of a security zone, the electromagnetic detection system receives and detects the intensity of the electromagnetic wave reflected from the security paper passing through an antenna gate, which transmits/receives RF signals. A stable detection performance of the security paper can be ensured by improving the incidence angle stability for incident waves and reducing the reflection loss. This study designed a frequency-selective structure with stable frequency reflection properties at the X-band by utilizing a Jerusalem cross structure. The proposed design was realized using the screen printing technique, which could implement a circuit, to print silver ink on a plain paper. To verify the applicability of the frequency-selective structure-based security paper, an RF detection system with a multiple antenna array was constructed and the intensity of the received signals was measured. The measurement was performed for various scenarios, and the result showed that the proposed security paper was well detected.

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Near-Field Chipless-RFID System With Erasable/Programmable 40-bit Tags Inkjet Printed on Paper Substrates

Cited by 71 publications

References 10 publications

Very Low-Cost 80-Bit Chipless-RFID Tags Inkjet Printed on Ordinary Paper

Very Low-Cost 80-Bit Chipless-RFID Tags Inkjet Printed on Ordinary Paper

Compact Printable Inverted-M Shaped Chipless RFID Tag Using Dual-Polarized Excitation

Security Paper Design with Frequency-Selective Structure for X-Band Electromagnetic Detection System

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