Title:
ANTENNA DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
WIPO Patent Application WO/2016/186090
Kind Code:
A1
Abstract:
An antenna device (101) comprising: a conductive radiation element (1); a power supply coil (3) connected to a second power supply circuit (82) for a second frequency band; and a choke coil (L2) connected to the radiation element (1). The radiation element (1) is connected to a first power supply circuit (81) for a first frequency band and is used as a radiation element for a standing wave antenna that contributes to field emission. A loop is formed that includes the radiation element (1) and the choke coil (L2). The power supply coil (3) magnetically couples or electromagnetically couples to the choke coil (L2) in the second frequency band. As a result, the loop acts as a magnetic field radiation type antenna that contributes to magnetic field radiation.
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Inventors:
ITO HIROMITSU (JP)
Application Number:
PCT/JP2016/064543
Publication Date:
November 24, 2016
Filing Date:
May 17, 2016
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q5/35; H01Q5/10; H01Q7/00; H01Q13/08
Foreign References:
| JP2014239539A | 2014-12-18 | |||
| JPS61247115A | 1986-11-04 | |||
| JP2009038651A | 2009-02-19 | |||
| JP2012249281A | 2012-12-13 |
Attorney, Agent or Firm:
Kaede Patent Attorneys' Office (JP)
特許業務法人 楓国際特許事務所 (JP)
特許業務法人 楓国際特許事務所 (JP)
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