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International Journal of Antennas and Propagation
Volume 2012 (2012), Article ID 162684, 5 pages
http://dx.doi.org/10.1155/2012/162684
Application Article

Design of RFID Reader Antenna for Exclusively Reading Single One in Tag Assembling Production

Graduate Institute of Communication Engineering, Tatung University, 40 Zhongshan, North Road, Section 3, Taipei 104, Taiwan

Received 5 December 2011; Revised 1 July 2012; Accepted 19 July 2012

Academic Editor: Dalia N. Elshiekh

Copyright © 2012 Chi-Fang Huang and Yi-Feng Huang. 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.

Abstract

A design of RFID reader antenna including a fixture, which is equipped with a chip-attaching machine producing the RFID tags, is presented. Such an antenna is constrained to read exclusively one tag only for the purpose of functional check of the whole tag when it passes the reader antenna. Namely, the other neighbor tags on the same rolling band are ignored that time. A wideband microstrip antenna is designed and a fixture with shielding material is set up for such a reading constraint. Low efficiency with high return loss is allowed for this constraint, yet wideband is still a must to treat all possible produced tags used in different countries and areas in the world.