Title:
ANTENNA DEVICE, ANTENNA COIL, AND ELECTRONIC EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2018/225833
Kind Code:
A1
Abstract:
The purpose of the present invention is to improve antenna characteristics without losing the strength of a conductor. An antenna device (1) comprises an antenna coil (2), a first conductor (3), and a second conductor (4). The antenna coil (2) is positioned between the first conductor (3) and the second conductor (4) in a first direction (D1). In a coil conductor (6) of the antenna coil (2), a first coil conductor part (61) is closer to a first principal surface (71) than a second principal surface (72) of a magnetic material (7). A second coil conductor part (62) is closer to the second principal surface (72) than the first principal surface (71) of the magnetic material (7). The second coil conductor part (62) overlaps the second conductor (4) in plan view of the magnetic material (7), and at least a portion of the second coil conductor part (62) is placed along the edge of the second conductor (4).
Inventors:
YAMAMOTO MASAYOSHI
Application Number:
PCT/JP2018/021923
Publication Date:
December 13, 2018
Filing Date:
June 07, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q7/06; G04G21/04; G04R60/10; H01Q1/24; H04B5/02; H01Q1/44
Domestic Patent References:
| WO2014083990A1 | 2014-06-05 | |||
| WO2013115017A1 | 2013-08-08 | |||
| WO2015098462A1 | 2015-07-02 |
Foreign References:
| JP2014107640A | 2014-06-09 | |||
| US20130171479A1 | 2013-07-04 | |||
| JP2011211309A | 2011-10-20 |
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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