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Three Label Tags for Special Applications: Attaching on Small Targets, Long Distance Recognition, and Stable Performance with Arbitrary Objects

Jaeyul CHOO, Chihyun CHO, Hosung CHOO

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Summary :

This paper designs tag antennas to satisfy three key goals: mounting on very small objects, extending the reading range with planar structures, and maintaining stable performance on various materials. First, the size of the tag is reduced up to 17% compared to the half-wavelength dipole without a large reduction in bandwidth and efficiency by introducing an inductively coupled feed structure. Second, the reading range is increased to 1.68 times that of the reference dipole tags while maintaining the planar structure using circular polarization characteristics. Finally, a stable reading range is achieved with a deviation in the reading range of only 30% of that of commercial tags on various objects by employing the capacitively-loaded and T-matching network.

Publication
IEICE TRANSACTIONS on Communications Vol.E97-B No.5 pp.1022-1029
Publication Date
2014/05/01
Publicized
Online ISSN
1745-1345
DOI
10.1587/transcom.E97.B.1022
Type of Manuscript
PAPER
Category
Antennas and Propagation

Authors

Jaeyul CHOO
  Korea Institute of Nuclear Safety
Chihyun CHO
  Korea Research Institute of Standards and Science
Hosung CHOO
  Hongik University

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