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International Journal of Antennas and Propagation
Volume 2007 (2007), Article ID 90762, 9 pages
Research Article

Analysis of Silver Ink Bow-Tie RFID Tag Antennas Printed on Paper Substrates

1Tampere University of Technology, Pori, Pohjoisranta 11 A, Pori 28100, Finland
2Tampere University of Technology, Institute of Electronics, Rauma Research Unit, Kalliokatu 2, Rauma 26100, Finland

Received 28 February 2007; Revised 15 June 2007; Accepted 30 October 2007

Academic Editor: Hans-Erik Nilsson

Copyright © 2007 Sari Merilampi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


In this study, polymeric silver inks, paper substrates, and screen printing were used to produce prototype Bow-Tie tags. Because of increasing interest in applying passive UHF-RFID systems in paper industry, the Bow-Tie antenna used in this study was designed to work through paper. The maximum reliable read ranges of the tags were measured thorough stacked paper and also in air. The analysis and functioning of the antenna design are also discussed. All inks and paper substrates were suitable as antenna material and the prototype tag antennas had good reading performance. The maximum reliable read ranges were quite the same as for copper and aluminum tags studied elsewhere. This means that printed UHF tags are competitive solutions for the identification of simple mass products.