Chipless RFIDs by using metasurfaces

Costa, Filippo; Genovesi, Simone; Monorchio, Agostino

doi:10.1109/eucap.2014.6902297

Cited by 2 publications

(3 citation statements)

References 14 publications

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“…Reducing the cost of these tags by removing silicon chips inside will expand the market application dramatically. Therefore, a looming technology called chipless RFID is introduced, which is anticipated to replace the optical barcode at 2020 [2,3].…”

Section: Introductionmentioning

confidence: 99%

Hybrid coding chipless tag based on impedance loading

Huang

et al. 2017

IET Microwaves, Antennas & Propagation

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Hybrid encoding technique is an efficient method to expand the coding capacity in radio‐frequency identification chipless tag design. In this study, a novel hybrid coding technique by combining amplitude deviation and frequency position encoding is proposed. The proposed tag is based on three circle ring resonators with loaded resistors. A transmission line model is employed to illustrate the operation principle of the impedance loading technique. A coding capacity of at least 23.7 bits is obtained within a compacted dimension of 3 cm × 3 cm. Corresponding experiments on realised prototypes are provided to validate the effectiveness of the proposed design.

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Section: Introductionmentioning

confidence: 99%

Hybrid coding chipless tag based on impedance loading

Huang

et al. 2017

IET Microwaves, Antennas & Propagation

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“…In SSVD only four training sequence are taken for any amount of total notches, creating a rank 4 matrix Γ as illustrated in Eq. (2).…”

Section: ) Smart-svdmentioning

confidence: 95%

“…Chipless Radio Frequency IDentification (RFID) is a looming technology anticipated to replace the optical barcode at 2020 [1], [2]. The prospective passive chipless RFID systems can provide both identification and highdefinition localization of objects with improved reliability and confidentiality while maintaining low power consumption and cost (unlike the conventional RFID systems that suffer from high cost per tag unit and low robustness [3]).…”

Section: Introductionmentioning

confidence: 99%

Novel notch modulation algorithm for enhancing the chipless RFID tags coding capacity

El-Awamry

Khaliel

Fawky

et al. 2015

2015 IEEE International Conference on RFID (RFID)

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The main objective of this contribution is to introduce a novel technique for increasing the coding capacity of the Frequency Coded (FC) chipless RFID system. The proposed scheme encodes 4 bits per single resonator exploiting the notch bandwidth and its corresponding frequency position. Hence, 72-bits could be achieved from 2 to 5 GHz preserving the operating frequency bandwidth. Furthermore, a Smart Singular Value Decomposition (SSVD) technique is utilized to estimate the notch bandwidth and ensure low probability of error. Consequently, high encoding efficiency and accurate detection could be achieved with simplified reader design. Likewise, a novel 4 x 5 cm 2 tag is designed to fit the requirements of the devised coding technique. Different tag configurations are manufactured and validated with measurements using Software Defined Radio (SDR) platform. The introduced coding methodology is conclusively validated using Electromagnetic (EM) simulations and real world testbed measurements.

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Chipless RFIDs by using metasurfaces

Cited by 2 publications

References 14 publications

Hybrid coding chipless tag based on impedance loading

Hybrid coding chipless tag based on impedance loading

Novel notch modulation algorithm for enhancing the chipless RFID tags coding capacity

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