Improvement in Robustness and Recognizability of RCS Response of U-Shaped Strip-Based Chipless RFID Tags

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

doi:10.1109/lawp.2016.2549638

Cited by 70 publications

(64 citation statements)

References 12 publications

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“…In order to verify how the frequency and magnitude stay unchanged in the event of absence of some resonators (the same analysis as [13]), two hypothetical states are considered, and corresponding insertion losses are compared to the RFID tag having all resonators (i.e. {00000000}).…”

Section: Frequency and Magnitude Stabilitymentioning

confidence: 99%

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RFID Tag Design Using Spiral Resonators and Defected Ground Structure

et al. 2017

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Section: Frequency and Magnitude Stabilitymentioning

confidence: 99%

“…A two-layer printed chipless RFID tag was realized on Teslin paper in [12], where inkjet printing technique was used to achieve a high data capacity. Two element-rearranged 20-bit spectral signature based chipless tags composed of U-shaped strip scatterers have been investigated in [13] to reduce mutual coupling between resonators.…”

Section: Introductionmentioning

confidence: 99%

RFID Tag Design Using Spiral Resonators and Defected Ground Structure

et al. 2017

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“…Note that the shape of resonators in FSS-based tags mainly governs the spectral encoding capacity. Chipless tags with patch-based resonators of square loop, U, V, C, and I shapes have been designed and demonstrated in the literature [21][22][23][24][25][26][27][28][29][30][31][32][33][34]. A dual-polarization coding method is a practical alternative in the quest for higher data capacities in FD chipless RFID tags.…”

Section: Introductionmentioning

confidence: 99%

A High-Density L-Shaped Backscattering Chipless Tag for RFID Bistatic Systems

Issa

Alshoudokhi

Ashraf

et al. 2018

International Journal of Antennas and Propagation

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Chipless radiofrequency identification (RFID) technology is very promising for sensing, identification, and tracking for future Internet of Things (IoT) systems and applications. In this paper, we propose and demonstrate a compact 18-bit, dual polarized chipless RFID tag. The proposed tag is based on L-shaped resonators designed so as to maximize the spectral and spatial encoding capacities. The proposed RFID tag operates an over 4 GHz frequency band (i.e., 6.5 GHz to 10.5 GHz). The tag is simulated, fabricated, and tested in a nonanechoic milieu. The measured data have shown good agreement with the simulation results, with respect to resonators' frequency positions, null depth, and null bandwidth over the operating spectrum. The proposed design achieves spectral and spatial encoding capacities of 4.5 bits/GHz and 18.8 bits/cm 2 , respectively. This, in turn, gives an encoding density of 4.7 bits/GHz/cm 2 . For code identification, we exploit the frequency content of the backscattered signals and identify similarity/correlation features with reference codes.

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“…RFID is a fairly handy technology because it facilitates non-line of sight communication which improves the tag's efficiency and provides longer reading range. [7][8][9] At the item level tracking, RFID technology is replacing optical barcodes. 7 The fabrication of microchip circuits is really expensive, and this sets a certain limitation on the manufacturing of RFID tags.…”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9] At the item level tracking, RFID technology is replacing optical barcodes. 7 The fabrication of microchip circuits is really expensive, and this sets a certain limitation on the manufacturing of RFID tags. This problem can be solved by excluding the microchip from the tag design.…”

mentioning

confidence: 99%

Miniaturized humidity and temperature sensing RFID enabled tags

Satti

Habib

Anam

et al. 2017

Int J RF Microw Comput Aided Eng

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A compact 27-bit linearly polarized chipless radio frequency identification tag is presented in this research. The proposed tag is designed with an overall tag dimension of 23 3 23 mm 2 . The tag comprises of metallic (copper) rings-based structure loaded with slots. These slots correspond to a particular sequence of bits. The circular tag is analysed using 2 different substrates, that is, Rogers RT/duroid/5870 and flexible Rogers RT/duroid/5880. The radar cross-section response of frequency signatured tag is analysed for humidity and temperature sensor designs. Humidity sensing is achieved by deploying a DuPont Kapton HN heat resistant sheet on the shortest slot of the tag, that is, the sensing slot. Temperature sensing is attained using Rogers RT/ duroid/5870 and Stanyl polyamide as a combined substrate. Hence, the miniaturized, robust, and flexible tag can be deployed over irregular surfaces for sensing purposes. K E Y W O R D Schipless tag, electromagnetic, flexibility, humidity sensor, temperature sensor | I NT ROD UCTI ONInternet of things (IoT) also known as ambient intelligence is an emerging technology. It ensures connectivity of physical and virtual objects to the internet at an unprecedented rate, thus, transforming traditional objects into smart ones. 1,2 This technology is an integral part of internet future, and it will interconnect uniquely identified embedded items through ubiquitous communication of physical objects. 3,4 IoT uses wireless and pervasive computing technologies to make objects intelligent. 1,5 The idea of IoT can be implemented using radio frequency identification (RFID) technology. RFID is a promising technology which has revolutionized automatic identification and wireless sensing of tagged objects. 6 RF waves are exchanged between a tag and reader using wireless transmission. RFID is a fairly handy technology because it facilitates non-line of sight communication which improves the tag's efficiency and provides longer reading range. [7][8][9] At the item level tracking, RFID technology is replacing optical barcodes. 7 The fabrication of microchip circuits is really expensive, and this sets a certain limitation on the manufacturing of RFID tags. This problem can be solved by excluding the microchip from the tag design. RFID tag without silicon chip is famous as chipless RFID tag. [10][11][12] Chipless tags have Int J RF Microw Comput Aided Eng. 2018;28:e21151.

show abstract

Improvement in Robustness and Recognizability of RCS Response of U-Shaped Strip-Based Chipless RFID Tags

Cited by 70 publications

References 12 publications

RFID Tag Design Using Spiral Resonators and Defected Ground Structure

RFID Tag Design Using Spiral Resonators and Defected Ground Structure

A High-Density L-Shaped Backscattering Chipless Tag for RFID Bistatic Systems

Miniaturized humidity and temperature sensing RFID enabled tags

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