Improved Fonts for Chipless Radio-Frequency-Identification Tags Based on Letters

Date

2018-11-02

Author

Mutlu, Feza
Demir, Mehmet Alper
Ergül, Özgür Salih

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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Using embedded microchips on radio-frequency identification (RFID) tags requires difficult mounting processes and increases the tag price. Therefore, chipless RFID tags have been introduced in the literature. In this paper, an improved series of chipless RFID letter-type tags are introduced. Each letter has unique characteristics that can be identified clearly, thanks to the well-designed slits opened to improve its electromagnetic response without sacrificing legibility. Simulations are realized for 150-point Calibri letters, which are also suitable for low-cost inkjet printing, excited with different polarizations. Various types of slits are investigated on the letters to achieve more reliable identification of the corresponding tags. A comparative analysis based on backscattered radar cross section and current distribution results is presented.

Subject Keywords

Inkjet printing, Numerical simulations, Chipless RFID tags, Radio-frequency identification (RFID)

URI

https://hdl.handle.net/11511/54031

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Department of Electrical and Electronics Engineering, Conference / Seminar

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Design, simulation, and fabrication of low-cost chipless rfid tags Çetin, Elif; Ergül, Özgür Salih; Department of Electrical and Electronics Engineering (2019) In this thesis, low-cost chipless radio-frequency-identification (RFID) tags are investigated. These types of tags are proposed and developed to replace barcodes in item-level tagging. In addition to the standard methods using printed circuit boards (PCBs), chipless RFID tags are suitable to be fabricated via low-cost inkjet printing. In these low-cost fabrications, tags are printed on photopapers via commercial inkjet printers loaded with silver-based inks. Various tag designs are simulated via the multile...
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Design of Highly Distinguishable Letters for Inkjet-Printed Chipless RFID Tags DEMIR, MEHMET ALPER; MUTLU, FEZA; Ergül, Özgür Salih (2018-09-14) We consider chipless tags, which are based on Latin letters and also legible, for radio-frequency-identification (RFID) applications. Since letters using standard fonts have relatively weak and smooth responses with respect to frequency, special slits are designed to improve the distinguishability of letters without sacrificing their legibility. The designed set of letters can be used to generate words that are also suitable for RFID applications with their strong and unique scattering characteristics. The ...

Citation Formats

F. Mutlu, M. A. Demir, and Ö. S. Ergül, “Improved Fonts for Chipless Radio-Frequency-Identification Tags Based on Letters,” 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/54031.