Title:
ANTENNA DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2019/074033
Kind Code:
A1
Abstract:
The purpose of the present invention is to improve the coupling amount between coil antennae and counterpart-side coil antennae, with respect to each of the plurality of coil antennae. This antenna device (1) is provided with a magnetic body (4), a first coil antenna (5), and a second coil antenna (6). The first coil antenna (5) is provided with a first opening (51), and is provided on a first main surface (41) side of the magnetic body (4). The second coil antenna (6) is provided with a second opening (61). The first opening (51) has a portion which overlaps the second opening (61). The second coil antenna (6) includes first coil conductor parts (62) and second coil conductor parts (63). The first coil conductor parts (62) are provided on the first main surface (41) side of the magnetic body (4). The second coil conductor parts (63) are provided on a second main surface (42) side of the magnetic body (4). The second coil conductor parts (63) are closer to the first coil antenna (5) than the first coil conductor parts (62).
Inventors:
KUBO HIROYUKI
Application Number:
PCT/JP2018/037830
Publication Date:
April 18, 2019
Filing Date:
October 11, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q7/06; G06K7/10; H01Q1/24; H02J50/10
Domestic Patent References:
| WO2015147133A1 | 2015-10-01 | |||
| WO2017094355A1 | 2017-06-08 |
Foreign References:
| JP2003022912A | 2003-01-24 |
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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