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Title:
RFID TAG AND MANUFACTURING METHOD THEREFOR, IMPEDANCE-ADJUSTING METHOD AND RESIN SHEET AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2010/013810
Kind Code:
A1
Abstract:
Disclosed are RFID tags that have an antenna element provided with an antenna substrate having an IC chip and an electric conductor pattern, an artificial medium, and a first insulating layer that is disposed between the antenna element and the artificial medium. The artificial medium has a first single electric conductor element that is disposed on the top surface of a dielectric layer and a second single electric conductor element that is disposed on the bottom surface of the dielectric layer.

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Inventors:
SONODA RYUTA (JP)
IKAWA KOJI (JP)
NIWANO KAZUHIKO (JP)
KOGANEZAWA KOUJI (JP)
Application Number:
PCT/JP2009/063673
Publication Date:
February 04, 2010
Filing Date:
July 31, 2009
Export Citation:
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Assignee:
ASAHI GLASS CO LTD (JP)
SONODA RYUTA (JP)
IKAWA KOJI (JP)
NIWANO KAZUHIKO (JP)
KOGANEZAWA KOUJI (JP)
International Classes:
G06K19/077; G06K19/07; H01Q15/14; H01Q15/23
Domestic Patent References:
WO2008136530A12008-11-13
WO2008062562A12008-05-29
Foreign References:
JP2009153089A2009-07-09
US20060132312A12006-06-22
JP2007104211A2007-04-19
JP2003529259A2003-09-30
JP2004535722A2004-11-25
JP2002510886A2002-04-09
JPH0426080B21992-05-06
JP2008200238A2008-09-04
JP2008285843A2008-11-27
Other References:
BO GAO: "Passive UHF RFID with ferrite electromagnetic band gap (EBG) material for metal objects tracking", ELECTRONIC COMPONENTS AND TECHNOLOGY CONFERENCE, 2008, - 30 May 2008 (2008-05-30), pages 1990 - 1994, XP031276476
BO GAO: "Low Cost Passive UHF RFID Packaging with Electromagnetic Band Gap (EBG) Substrate for Metal Objects", ELECTRONIC COMPONENTS AND TECHNOLOGY CONFERENCE, - 1 June 2007 (2007-06-01), pages 974 - 978, XP031180616
DONG-UK SIM: "Design of novel dipole-type tag antennas using electromagnetic bandgap (EBG) surface for passive RFID applications", ANTENNAS AND PROPAGATION INTERNATIONAL SYMPOSIUM, - 15 June 2007 (2007-06-15), pages 1333 - 1336, XP031169393
BO GAO: "Ultrathin low cost Electromagnetic Band Gap (EBG) materials as UHF RFID tag substrate", ELECTRONIC MATERIALS AND PACKAGING, 2006. EMAP 2006. INTERNATIONAL CONFERENCE, - 14 December 2006 (2006-12-14), pages 1 - 4, XP031202549
UKKONEN, L.: "Patch antenna with EBG ground plane and two-layer substrate for passive RFID of metallic objects", ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM, vol. 1, - 25 June 2004 (2004-06-25), pages 93 - 96, XP010721044
DONG-UK SIM; DONG-HO KIM; JAE-ICK CHOI; HYUNG-DO CHOI: "Design of Novel Dipole-Type Tag Antennas using Electromagnetic Bandgap (EBG) Surface for Passive RFID Application", IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION, 2007, pages 1333
See also references of EP 2312504A4
Attorney, Agent or Firm:
OGURI Shohei (7-13 Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, JP)
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