Title:
ANTENNA DEVICE AND ELECTRONIC INSTRUMENT
Document Type and Number:
WIPO Patent Application WO/2018/056101
Kind Code:
A1
Abstract:
An antenna device (301) is provided with a coil element comprising: a base material; a coil conductor; a first terminal connected to a first end of the coil conductor; a second terminal connected to a second end of the coil conductor; and a third terminal and a fourth terminal led out from a secondary-side coil conductor portion, which is a part of the coil conductor. The base material is provided with: a first electrode to which the first terminal is connected and which is joined to a power supply circuit; a second electrode to which the second terminal is connected and which is joined to the power supply circuit; a third electrode to which the third terminal is connected; a fourth electrode to which the fourth terminal is connected; and a radiating conductor which is joined to the third electrode and the fourth electrode. The coil element and the radiating conductor are magnetically coupled to a communication partner-side antenna.
Inventors:
KATO NOBORU (JP)
TENNO NOBUYUKI (JP)
TENNO NOBUYUKI (JP)
Application Number:
PCT/JP2017/032737
Publication Date:
March 29, 2018
Filing Date:
September 12, 2017
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q7/00; G06K19/077; H01Q1/24
Domestic Patent References:
| WO2016143570A1 | 2016-09-15 | |||
| WO2015166834A1 | 2015-11-05 | |||
| WO2014003163A1 | 2014-01-03 | |||
| WO2014003164A1 | 2014-01-03 |
Foreign References:
| JP2000269725A | 2000-09-29 | |||
| JP2007060075A | 2007-03-08 | |||
| JP2012511850A | 2012-05-24 | |||
| JP2004227046A | 2004-08-12 | |||
| US20130017781A1 | 2013-01-17 |
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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