Title:
ANTENNA DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/115017
Kind Code:
A1
Abstract:
This invention is provided with: a booster antenna (3) having formed thereon an opening part (312) and a slit (311) extending from the opening part (312) to the distal end section (H); and a power supply coil (2) having a coil conductor (22) wound around a magnetic core (21), at least a part of the opening of the coil conductor (22) being provided at a position overlapping the opening part (312) of the booster antenna (3) in planar view. The coil conductor (22) is wound around the magnetic core (21) so that a first conductor portion (22A) positioned on the first surface side of the magnetic core (21) and a second conductor portion (22B) positioned on the second surface side of the magnetic core (21) are at different positions in planar view. The power supply coil (2) is provided so that the first surface faces the booster antenna (3) and the first conductor portion (22A) is located on the side towards the distal end section (H) of the booster antenna (3). This provides an antenna device and electronic equipment in which it is possible to obtain the maximum communication distance over a wide angle of the electromagnetic field.
Inventors:
NAKANO SHINICHI (JP)
Application Number:
PCT/JP2013/051243
Publication Date:
August 08, 2013
Filing Date:
January 23, 2013
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q7/06; G06K17/00; G06K19/07; G06K19/077; H01Q1/24; H01Q1/38; H04B5/02
Foreign References:
| JP2011211611A | 2011-10-20 | |||
| JP2011199343A | 2011-10-06 | |||
| JPH1125244A | 1999-01-29 | |||
| JP2004166176A | 2004-06-10 | |||
| JP2011119819A | 2011-06-16 |
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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Claims: