Title:
ANTENNA DEVICE AND COMMUNICATIONS DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/038209
Kind Code:
A1
Abstract:
A small antenna device having good communications performance and a wide communications area even when a metal plate is present in the antenna communications direction, even when the antenna is arranged, for example, inside a box-shaped metal case, and even when a through hole is used that has a smaller area than the antenna. This device comprises: the antenna (8); a rear surface cover (3) overlapping with the antenna (8) and being a conductor that faces the winding of the antenna (8); two first insulating areas (10a) provided in the rear surface cover (3) and extending in a direction that intersects the winding axis of the antenna (8); and a second insulating area (10b) that connects between the first insulating areas (10a). At least part of the area sandwiched by the first insulating areas (10a) faces the antenna (8).
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Inventors:
YAMAGUCHI SHUICHIRO
SAKAI HIROSHI
SAKAI HIROSHI
Application Number:
PCT/JP2013/005304
Publication Date:
March 13, 2014
Filing Date:
September 06, 2013
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
H01Q7/00; G06K19/07; G06K19/077
Foreign References:
| JP2012029258A | 2012-02-09 | |||
| JP2008131115A | 2008-06-05 | |||
| JP2013169122A | 2013-08-29 | |||
| JP4687832B2 | 2011-05-25 |
Other References:
See also references of EP 2894716A4
Attorney, Agent or Firm:
WASHIDA, KIMIHITO (JP)
Koichi Washida (JP)
Koichi Washida (JP)
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