Title:
ANTENNA DEVICE AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/014010
Kind Code:
A1
Abstract:
In order to secure excellent communication performance even when an antenna coil is arranged on the underside of a thermal diffusion sheet, this antenna device (1), which is integrated into an electronic device and which communicates with an external device through electromagnetic field signals, is provided with: an antenna coil (12) which comprises a two-dimensionally wound conducting wire (12a) and which is inductively coupled with the external device, and a thermal diffusion sheet (20) which is provided on the surface of the antenna coil opposite to the external device so as to overlap the antenna coil. A slit (18), which is formed from a region overlapping the opening of the antenna coil to the end of the thermal diffusion sheet, and a thermal diffusion sheet-side opening (19) or a thermal diffusion sheet-side slit, which is connected to said slit and which is formed in a region overlapping the opening of the antenna coil, are formed in the thermal diffusion sheet.
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Inventors:
ORIHARA KATSUHISA (JP)
SAITO NORIO (JP)
KOBO MASAHIRO (JP)
SAITO NORIO (JP)
KOBO MASAHIRO (JP)
Application Number:
PCT/JP2016/069103
Publication Date:
January 26, 2017
Filing Date:
June 28, 2016
Export Citation:
Assignee:
DEXERIALS CORP (JP)
International Classes:
H01Q7/00; G06K19/077; H01Q1/24
Domestic Patent References:
WO2014112150A1 | 2014-07-24 |
Foreign References:
JP2014206891A | 2014-10-30 | |||
JP2003159753A | 2003-06-03 |
Attorney, Agent or Firm:
KOIKE, Akira et al. (JP)
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