Frequency-domain chipless RFID transponders: Improvement the reading response

Macháč, Jan; Polívka, Milan; Švanda, Milan; Havlicek, Jaroslav

doi:10.23919/mikon.2018.8405332

Cited by 2 publications

(1 citation statement)

References 12 publications

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“…Typically, each resonant element provides a bit of information, and the encoding is determined by the absence or presence of singularities in the amplitude and/or phase of the frequency response of the tag. According to the type of interaction between the interrogation signal and the tag, frequency domain-based tags can be classified as retransmission-based [54,55,56,57,58,59,60,61,62,63,64] and backscattered-based [65,66,67,68,69,70,71,72,73,74,75,76,77,78,79] tags.…”

Section: Chipless-rfid Tags Based On Frequency Domainmentioning

confidence: 99%

Chipless-RFID: A Review and Recent Developments

Herrojo

Paredes

Mata-Contreras

et al. 2019

Sensors

116

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In this paper, a review of the state-of-the-art chipless radiofrequency identification (RFID) technology is carried out. This recent technology may provide low cost tags as long as these tags are not equipped with application specific integrated circuits (ASICs). Nevertheless, chipless-RFID presents a series of technological challenges that have been addressed by different research groups in the last decade. One of these challenges is to increase the data storage capacity of tags, in order to be competitive with optical barcodes, or even with chip-based RFID tags. Thus, the main aim of this paper is to properly clarify the advantages and disadvantages of chipless-RFID technology. Moreover, since the coding information is an important aspect in such technology, the different coding techniques, as well as the main figures of merit used to compare different chipless-RFID tags, will be analyzed.

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Section: Chipless-rfid Tags Based On Frequency Domainmentioning

confidence: 99%

Chipless-RFID: A Review and Recent Developments

Herrojo

Paredes

Mata-Contreras

et al. 2019

Sensors

116

View full text Add to dashboard Cite

show abstract

A MIMO Radar Signal Processing Algorithm for Identifying Chipless RFID Tags

Zou

Jiao

et al. 2021

Sensors

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In this paper, the multiple-input, multiple-output (MIMO) radar signal processing algorithm is efficiently employed as an anticollision methodology for the identification of multiple chipless radio-frequency identification (RFID) tags. Tag-identifying methods for conventional chipped RFID tags rely mostly on the processing capabilities of application-specific integrated circuits (ASICs). In cases where more than one chipless tag exists in the same area, traditional methods are not sufficient to successfully read and distinguish the IDs, while the direction of each chipless tag can be obtained by applying MIMO technology to the backscattering signal. In order to read the IDs of the tags, beamforming is used to change the main beam direction of the antenna array and to receive the tag backscattered signal. On this basis, the RCS of the tags can be retrieved, and associated IDs can be identified. In the simulation, two tags with different IDs were placed away from each other. The IDs of the tags were successfully identified using the presented algorithm. The simulation result shows that tags with a distance of 0.88 m in azimuth can be read by a MIMO reader with eight antennas from 3 m away.

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Frequency-domain chipless RFID transponders: Improvement the reading response

Cited by 2 publications

References 12 publications

Chipless-RFID: A Review and Recent Developments

Chipless-RFID: A Review and Recent Developments

A MIMO Radar Signal Processing Algorithm for Identifying Chipless RFID Tags

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