Title:
ANTENNA DEVICE AND PORTABLE WIRELESS DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/114491
Kind Code:
A1
Abstract:
A loop antenna (31) comprises a large aperture antenna section (31a) wound along the periphery of a substrate (42), a small aperture antenna section (31b) wound in the center of the substrate (42), and a jumper wire (31c). The large aperture antenna section (31a) is used to carry out stable communication with a loop antenna (61) mounted in a reader-writer and having a large aperture antenna section (61a). The small aperture antenna section (31b) is used to carry out stable communication with a loop antenna (61) mounted in a reader-writer and having a small aperture antenna section (61f).
Inventors:
YANAGI KENJI
ISHIMORI TAKAYUKI
HARIGAI SATOSHI
ISHIMORI TAKAYUKI
HARIGAI SATOSHI
Application Number:
PCT/JP2012/007027
Publication Date:
August 08, 2013
Filing Date:
November 01, 2012
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
H01Q7/00; G06K19/07; G06K19/077; H01Q1/24; H01Q1/38; H01Q21/29
Foreign References:
| JP2001313515A | 2001-11-09 | |||
| JPH10209737A | 1998-08-07 | |||
| JPH08293724A | 1996-11-05 |
Attorney, Agent or Firm:
HASHIMOTO, Kimihide et al. (JP)
Kimihide Hashimoto (JP)
Kimihide Hashimoto (JP)
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Claims: