Design of a Wideband UHF RFID Printed Tag Antenna Using the R2R Process

Uisheon KIM  Gyubong JUNG  Jaehoon CHOI  

IEICE TRANSACTIONS on Communications   Vol.E93-B   No.8   pp.2135-2141
Publication Date: 2010/08/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E93.B.2135
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Antennas and Propagation
UHF RFID tag antenna,  matching network,  conductivity silver ink,  R2R process,  

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This paper proposes a printed tag antenna for the universal ultra-high frequency (UHF) radio frequency identification (RFID) band (860-960 MHz) using the R2R process. To widen impedance bandwidth, a π-shaped matching network is suggested. The overall dimension of the proposed tag antenna is 83.4 mm 30.2 mm and it has a gain of over 1 dBi for the entire UHF RFID band. The performances of the proposed tag antenna, printed with conductivity silver ink using an R2R process, are compared with those of a copper antenna.