Title:
ANTENNA DEVICE, CARD-TYPE INFORMATION MEDIUM AND COMMUNICATION TERMINAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/121501
Kind Code:
A1
Abstract:
This antenna device (101) is provided with: a coil antenna (20) which comprises a coil conductor (22) that is wound around a winding axis (AX1), and which has a first coil end (P1) and a second coil end (P2); a first planar conductor (11); a second planar conductor (12); and a third planar conductor (13). The first planar conductor (11) has a surface that extends along the winding axis (AX1), and is arranged in the vicinity of the first coil end (P1). The second planar conductor (12) has a surface that extends along the winding axis (AX1), and is arranged in the vicinity of the second coil end (P2). The third planar conductor (13) is arranged in the vicinity of the first planar conductor (11) and the second planar conductor (12), and at least a part of the third planar conductor (13) is arranged between the first planar conductor (11) and the second planar conductor (12) when viewed in plan.
Inventors:
TENNO NOBUYUKI (JP)
Application Number:
PCT/JP2016/050897
Publication Date:
August 04, 2016
Filing Date:
January 14, 2016
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q7/06; G06K7/10; G06K19/07; G06K19/077
Domestic Patent References:
| WO2012033031A1 | 2012-03-15 | |||
| WO2014076669A1 | 2014-05-22 |
Foreign References:
| JP2014161003A | 2014-09-04 | |||
| JPH11328341A | 1999-11-30 |
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)
Download PDF: