Title:
無線ICデバイス
Document Type and Number:
Japanese Patent JP5251924
Kind Code:
B2
Abstract:
A radio IC device that can be used in a plurality of frequency bands for RFID tags and that is compact and has superior radiation characteristics is configured. A spiral line electrode portion (22) and a one-side electrode (23), extending from an inner end thereof, of a capacitor electrode portion are formed on a top surface of a sheet-like substrate (21), and an other-side electrode (24) facing the one-side electrode (23) and a crossing line electrode (25) are formed on a bottom surface of the substrate (21). A first radio IC chip (61) is mounted somewhere in the line electrode portion (22), and a second RFID tag radio IC (31) is mounted so as to be connected to a front-to-back connection portion (26) and an end of an electric-field radiation electrode portion (33). The radio IC chip (61) rectifies an RF signal in a first frequency band and outputs and supplies power to the second RFID tag radio IC (31).
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Inventors:
Shinro Ikemoto
Application Number:
JP2010129593A
Publication Date:
July 31, 2013
Filing Date:
June 07, 2010
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01Q1/38; G06K19/07; G06K19/077; H01Q5/00; H01Q5/10; H01Q5/35; H01Q9/16; H01Q9/27; H02J50/00; H02J50/05; H02J50/12
Domestic Patent References:
| JP2007028002A | ||||
| JP2006339964A | ||||
| JP2000242754A | ||||
| JP11088241A |
Foreign References:
| WO2007086130A1 | ||||
| WO2010001837A1 |
Attorney, Agent or Firm:
Kaede International Patent Office