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IEICE TRANSACTIONS on Fundamentals

Reading Technique of 2.45 GHz Band Small RFID Tags with an Adapter

Peng WANG, Hiroyuki KOGA, Sho YAMADA, Shigeki OBOTE, Kenichi KAGOSHIMA, Kenji ARAKI

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Summary :

A 2.45-GHz-band small passive radio-frequency identification (RFID) tag consists of a small loop antenna and chip, and its size is several millimeters. Because of the tag's poor impedance-matching characteristic and radiation efficiency, an ordinary reader has difficulty reading it. We propose a new technique for reading the tag that involves installing a square half-wavelength meander-line conductor on the reader as an adapter and placing the adapter in the vicinity of the tag, and verify the effectiveness of the technique by simulation and experiment. Moreover, characteristics of simultaneous read of the small RFID tags by the proposed reading technique are revealed by simulation and experimental results.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E92-A No.11 pp.2851-2857
Publication Date
2009/11/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E92.A.2851
Type of Manuscript
Special Section PAPER (Special Section on Smart Multimedia & Communication Systems)
Category
Communication Theory and Systems

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