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

Autor: Kenichi Kagoshima, Sho Yamada, Shigeki Obote, Peng Wang, Hiroyuki Koga, Kenji Araki
Rok vydání: 2009
Předmět:
Zdroj: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. :2851-2857
ISSN: 1745-1337
0916-8508
DOI: 10.1587/transfun.e92.a.2851
Popis: 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.
Databáze: OpenAIRE