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International Journal of Antennas and Propagation
Volume 2012, Article ID 801014, 9 pages
Research Article

A Selective Ink Deposition Method for the Cost-Performance Optimization of Inkjet-Printed UHF RFID Tag Antennas

1Department of Electronics, Rauma Research Unit, Tampere University of Technology, 33720 Tampere, Finland
2Department of Electrical Engineering, University of Mississippi, Oxford, MS 38677, USA

Received 27 January 2012; Accepted 14 March 2012

Academic Editor: Fan Yang

Copyright © 2012 J. Virtanen 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.


A selective ink deposition method is proposed for fabricating inkjet-printed passive UHF RFID tag antennas with optimized cost-performance ratios. The deposition method is based on identifying areas with high surface current densities on a given tag antenna and applying additional silver nanoparticle ink onto such areas to increase tag read range. In this paper, the proposed method is experimentally verified by utilizing the method on a small dipole tag antenna. Several ink deposition schemes are created, and their read range performances and ink consumptions are presented.