Enhancing the Per-Unit-Length Data Density in Near-Field Chipless-RFID Systems with Sequential Bit Reading

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F19%3A00324836" target="_blank" >RIV/68407700:21230/19:00324836 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/LAWP.2018.2881356" target="_blank" >https://doi.org/10.1109/LAWP.2018.2881356</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/LAWP.2018.2881356" target="_blank" >10.1109/LAWP.2018.2881356</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Enhancing the Per-Unit-Length Data Density in Near-Field Chipless-RFID Systems with Sequential Bit Reading

Popis výsledku v původním jazyce

In this paper, a novel near-field chipless-RFID system with sequential bit reading is reported. The main novelty concerns the tags, implemented by means of straight half-wavelength resonators separated a small distance and forming a linear chain in the direction orthogonal to their axis. By this means, the number of resonant elements (or bits) per unit length of the tag is significantly increased, as compared to previous implementations, with the result of very competitive tags in terms of data density. The active part of the reader is a microstrip line loaded with a shunt stub. Through a proper design, it is possible to achieve a significant excursion of the transmission coefficient when the stub is either loaded or unloaded with a functional resonant element of the tag. Consequently, by tag motion over the reader (stub), it is possible to infer the ID code by simply injecting a harmonic signal to the input port of the stub-loaded line (the ID code is contained in the amplitude modulated, AM, signal at the output port). This system has been validated by considering 100-bit tags exhibiting a surface data density of 4.9 bits/cm 2 . However, the relevant parameter is the data density per unit length, as high as 16.7 bit/cm, i.e., much larger than previous values reported in the literature in similar chipless-RFID systems.

Název v anglickém jazyce

Enhancing the Per-Unit-Length Data Density in Near-Field Chipless-RFID Systems with Sequential Bit Reading

Popis výsledku anglicky

In this paper, a novel near-field chipless-RFID system with sequential bit reading is reported. The main novelty concerns the tags, implemented by means of straight half-wavelength resonators separated a small distance and forming a linear chain in the direction orthogonal to their axis. By this means, the number of resonant elements (or bits) per unit length of the tag is significantly increased, as compared to previous implementations, with the result of very competitive tags in terms of data density. The active part of the reader is a microstrip line loaded with a shunt stub. Through a proper design, it is possible to achieve a significant excursion of the transmission coefficient when the stub is either loaded or unloaded with a functional resonant element of the tag. Consequently, by tag motion over the reader (stub), it is possible to infer the ID code by simply injecting a harmonic signal to the input port of the stub-loaded line (the ID code is contained in the amplitude modulated, AM, signal at the output port). This system has been validated by considering 100-bit tags exhibiting a surface data density of 4.9 bits/cm 2 . However, the relevant parameter is the data density per unit length, as high as 16.7 bit/cm, i.e., much larger than previous values reported in the literature in similar chipless-RFID systems.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/GA17-02760S" target="_blank" >GA17-02760S: Bezdrátové snímání fyzikálních veličin v komplexním prostředí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

IEEE Antennas and Wireless Propagation Letters

ISSN

1536-1225

e-ISSN

1548-5757

Svazek periodika

18

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

89-92

Kód UT WoS článku

000455707900019

EID výsledku v databázi Scopus

2-s2.0-85056583987