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High Frequency Characterization and Modelling of Inkjet Printed Interconnects On Flexible Substrate for Low-Cost RFID Applications
KTH, School of Information and Communication Technology (ICT), Electronic, Computer and Software Systems, ECS.
KTH, School of Information and Communication Technology (ICT), Electronic, Computer and Software Systems, ECS.
KTH, School of Information and Communication Technology (ICT), Electronic, Computer and Software Systems, ECS.
KTH, School of Information and Communication Technology (ICT), Electronic, Computer and Software Systems, ECS.
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2008 (English)In: ESTC 2008: 2ND ELECTRONICS SYSTEM-INTEGRATION TECHNOLOGY CONFERENCE, VOLS 1 AND 2, PROCEEDINGS, NEW YORK: IEEE , 2008, 695-699 p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents the characterization and modeling of inkjet printed interconnects on flexible polyimide substrate using nano-paticle silver ink for low-cost RFID applications. Then TDR/TDT and S-parameter measurements are performed at high frequency from 30 kHz to 6 GHz. A Jumped equivalent circuit and distributed parameter model of the printed interconnects have been developed for the realization of the full printed RFID tags. Additionally the related electrical properties of the printed interconnects are extracted.

Place, publisher, year, edition, pages
NEW YORK: IEEE , 2008. 695-699 p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-38653DOI: 10.1109/ESTC.2008.4684435ISI: 000261094400126Scopus ID: 2-s2.0-58149101336ISBN: 978-1-4244-2813-7 (print)OAI: oai:DiVA.org:kth-38653DiVA: diva2:450231
Conference
2nd Electronics System-Integration Technology Conference, Greenwich, ENGLAND, SEP 01-04, 2008
Note

QC 20111020

Available from: 2011-10-20 Created: 2011-08-31 Last updated: 2014-03-04Bibliographically approved
In thesis
1. Fully Printed Chipless RFID Tags towards Item-Level Tracking Applications
Open this publication in new window or tab >>Fully Printed Chipless RFID Tags towards Item-Level Tracking Applications
2014 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

An ID generating circuit is unquestionably the core of a chipless RFID tag. For convenience of printing process and cost consideration, the circuit should be kept as simple as possible. Based on the cognition, an 8-bit time-domain based ID generating circuit that merely consists of a ML and eight capacitors was offered, and implemented on photo-paper substrates via inkjet printing process. In addition to the experimental measurements, the circuit was also input into circuit simulators for cross-validation. The good agreement between simulations and measurements is observed, exhibiting the tag technical feasibility. Besides of low cost, the tag has wide compatibility with current licensed RFID spectrum, which will facilitate the future deployment in real applications.

Compared   to  time-domain   based  chipless   tags,  frequency   signatures   based chipless RFID tags are expected to offer a larger coding capacity. As a response, we presented a 10-bit frequency-domain based chipless RFID tag. The tag composed of ten configurable LC resonators was implemented on flexible polyimide substrate by using  fast  toner-transferring  process.  Field  measurements  revealed  not  only  the practicability  of  the  tag,  but  also  the  high  signal  to  noise  ratio  (SNR).  Another frequency domain tag consists of a configurable coplanar LC resonator. With the use of all printing process, the tag was for the first time realized on common packaging papers.  The tag feasibility was confirmed by subsequent measurements. Owing to the ultra-low cost potential and large SNR, The tag may find wide applications in typical RFID solutions such as management of paper tickets for social events and governing of smart documents.

Ultra wide band (UWB) technology possesses a number of inherent merits such as high speed communication and large capacity, multi-path immunity, accurate ranging and positioning, penetration through obstacles, as well as extremely low-cost and low- power transmitters. Thus, passive UWB RFIDs are expected to play an important pole in  the future identification applications for IoT. We explained the feature difference between  UWB  chipless  tags  and  chip  based  tags,  and  forecasted  the  applications respectively  based on the comparison  between the two technologies.  It is expected that the two technologies will coexist and compensate each other in the applications of IoT.

Lastly, the thesis ends up with brief summary of the author’s contributions, and technical prospect for the future development of printable chipless RFID tags.

 

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2014. xii, 81 p.
Keyword
Chipless RFID tag, configurability, inkjet printing, time domain, frequency domain, paper substrate, tag antenna, linearly tapering, LC resonator
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:kth:diva-142409 (URN)978-91-7595-020-4 (ISBN)
Public defence
2014-03-28, Sal/hall D, KTH-ICT, Isafjordgatan 39, Kista, 14:00 (English)
Opponent
Supervisors
Note

QC 20140304

Available from: 2014-03-04 Created: 2014-03-03 Last updated: 2014-03-04Bibliographically approved

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