Title:
ANTENNA APPARATUS AND WIRELESS COMMUNICATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2013/183575
Kind Code:
A1
Abstract:
An antenna apparatus (101) is provided with a first coil conductor (11), a second coil conductor (12), and a magnetic material layer (30). The first coil conductor (11) and the second coil conductor (12) have respective coil openings disposed facing each other with the layers of the magnetic material layer (30) therebetween. The inner circumferential end of the first coil conductor (11) and the inner circumferential end of the second coil conductor (12) are electrically connected to each other. The first coil conductor (11) and the second coil conductor (12) are connected to each other such that the directions of magnetic fluxes generated in the coil winding axis direction are opposite to each other. A magnetic flux (φ) that enters in the direction perpendicular to a metal body (40) flows away to the sides (in the surface direction) of the magnetic material layer (30).
Inventors:
YOSUI KUNIAKI (JP)
Application Number:
PCT/JP2013/065322
Publication Date:
December 12, 2013
Filing Date:
June 03, 2013
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q7/06; G06K17/00; G06K19/07
Domestic Patent References:
| WO2012033031A1 | 2012-03-15 |
Foreign References:
| JP2011066628A | 2011-03-31 |
Attorney, Agent or Firm:
Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
Patent business corporation Kaede Patent Attorneys' Office (JP)
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