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Patent Searching and Data


Title:
ANTENNA DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2021/049517
Kind Code:
A1
Abstract:
An antenna device (101) is provided with a first coil (10) and a second coil (20). A part of the first coil (10) overlaps a coil opening (CO2) of the second coil (20), and a part of the second coil (20) overlaps a coil opening (CO1) of the first coil (10). The first coil (10) is provided with a first coil conductor formed on a first surface of a substrate, and a first coil conductor formed on a second surface thereof. In the first coil (10), the first coil conductors have single layer parts (SLP1, SLP2) formed on only the first surface of the substrate, and second coil conductors (22, 24) cross the first coil conductors in areas facing the single layer parts (SLP1, SLP2) within the second surface of the substrate.

Inventors:
MUKAI TSUYOSHI (JP)
ITO HIROMITSU (JP)
Application Number:
PCT/JP2020/034075
Publication Date:
March 18, 2021
Filing Date:
September 09, 2020
Export Citation:
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Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q7/00; G06K19/077; H01Q1/24; H01Q1/52; H01Q7/06; H01Q21/28; H02J50/12
Domestic Patent References:
WO2019163675A12019-08-29
WO2017119215A12017-07-13
WO2017094466A12017-06-08
WO2019176636A12019-09-19
Foreign References:
JPH0998014A1997-04-08
JP2013138404A2013-07-11
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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