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Title:
RFID TAG
Document Type and Number:
WIPO Patent Application WO/2013/047680
Kind Code:
A1
Abstract:
Provided is an RFID tag, wherein a communication distance of several centimeter or more can be secured and the cost of which can be reduced in comparison to conventional on-chip antennas, even when being compact in size (square shaped with a side of 1.9 to 13 mm). The RFID tag (80) comprises an antenna (20), an IC chip (30) connected to the antenna (20), and a sealing material (10) that seals the IC chip (30) and the antenna (20). The antenna (20) is a coil antenna or a loop antenna, and the resonance frequency (f0) of an electric circuit constituted by the inductance (L) of the antenna (20) and the capacitance (C) of the IC chip (30) is equal to the operation frequency of the IC chip (30), or in the vicinity thereof.

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Inventors:
ENDOU TOSHIHIRO (JP)
ISHIZAKA HIRONORI (JP)
OOTA MASAHIKO (JP)
TASAKI KOUJI (JP)
HOSOI HIROYUKI (JP)
KAKUTA JO (JP)
NARITA HIROAKI (JP)
SATO HIROKI (JP)
Application Number:
PCT/JP2012/074932
Publication Date:
April 04, 2013
Filing Date:
September 27, 2012
Export Citation:
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Assignee:
HITACHI CHEMICAL CO LTD (JP)
RENESAS HIGH COMPONENTS INC (JP)
International Classes:
G06K19/077; G06K19/07; H01Q1/40; H01Q7/00; H01Q9/26; H01Q9/27
Foreign References:
JP2008165678A2008-07-17
JP2006189961A2006-07-20
JP2007102348A2007-04-19
JP2005056221A2005-03-03
JP2000276569A2000-10-06
Attorney, Agent or Firm:
MIYOSHI, Hidekazu et al. (JP)
Hidekazu Miyoshi (JP)
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Claims:



 
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