Title:
ANTENNA DEVICE AND ELECTRONIC APPARATUS
Document Type and Number:
Japanese Patent JP2015115916
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an antenna device capable of obtaining a satisfactory communication performance, which uses an emitting surface of a magnetic field with a small area for a short-range radio communication, and an electronic apparatus using the antenna device.SOLUTION: The antenna device includes: an antenna unit which has a magnetic core 2, an antenna coil part 3, a first emitting surface 9 facing an opening 8, a second emitting surface 10 having an area larger than the first emitting surface 9, a third emitting surface 11 facing the second emitting surface 10, and a fourth emitting surface 12 opposite the first emitting surface 9; and a reflection part formed of a conductor which completely encloses the second emitting surface 10, the third emitting surface 11 and the fourth emitting surface 12.
Inventors:
SANO MASAAKI
Application Number:
JP2013258912A
Publication Date:
June 22, 2015
Filing Date:
December 16, 2013
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
H01Q15/14; G06K17/00; H01Q7/08
Attorney, Agent or Firm:
Kentaro Fujii
Kenji Kamada
Hiroo Maeda
Kenji Kamada
Hiroo Maeda