Title:
ANTENNA DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2017/094466
Kind Code:
A1
Abstract:
An antenna device (10) is provided with: a coil antenna (11) of a first non-contact transmission system; and a coil antenna (12) of a second non-contact transmission system. The coil antenna (11) has a coil (13). The coil antenna (12) has: a coil (14) to be coupled to the coil (13); and a coil (15) to be coupled to the coil (14) in the direction in which mutual inductance is improved. When the coupling between the coil (13) and the coil (14) is defined as coupling in the positive direction, the coil (15) is coupled to the coil (13) in the negative direction, and has a shape asymmetric to the coil (14).
Inventors:
ICHIKAWA KEIICHI (JP)
Application Number:
PCT/JP2016/083308
Publication Date:
June 08, 2017
Filing Date:
November 10, 2016
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q7/00; G06K7/10; G06K19/077
Domestic Patent References:
| WO2003003390A1 | 2003-01-09 |
Foreign References:
| JPH11122147A | 1999-04-30 | |||
| JP2007288741A | 2007-11-01 | |||
| JP2000194801A | 2000-07-14 |
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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