Title:
ANTENNA APPARATUS AND COMMUNICATION TERMINAL APPARATUS
Document Type and Number:
WIPO Patent Application WO/2012/050037
Kind Code:
A1
Abstract:
An antenna apparatus (101) comprises an antenna coil that is composed of: a first conductor pattern (40) formed on a first main face of a magnetic material layer (10); a second conductor pattern (50) formed on a first main face of a nonmagnetic material layer (20); and inter-layer conductors (60) that connect the first conductor pattern (40) and the second conductor pattern (50). The antenna coil, which comprises the first conductor pattern (40) and the second conductor pattern (50), constitutes a roughly spiral pattern. This antenna apparatus (101) is a resin multi-layer structure having a laminate of the magnetic material layer and the nonmagnetic material layer as the base body thereof, and having prescribed conductor patterns formed inside and outside thereof. This structure allows for the configuration of an antenna apparatus that can be manufactured with simple processes, with little property variation, and that has excellent electrical properties, and a communication terminal apparatus provided with this antenna apparatus.
Inventors:
KATO NOBORU (JP)
SASAKI JUN (JP)
ISHINO SATOSHI (JP)
SASAKI JUN (JP)
ISHINO SATOSHI (JP)
Application Number:
PCT/JP2011/073054
Publication Date:
April 19, 2012
Filing Date:
October 06, 2011
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
KATO NOBORU (JP)
SASAKI JUN (JP)
ISHINO SATOSHI (JP)
KATO NOBORU (JP)
SASAKI JUN (JP)
ISHINO SATOSHI (JP)
International Classes:
H01Q7/06; H01Q1/38; H01Q1/40
Foreign References:
| JP2000048152A | 2000-02-18 | |||
| JP2008092131A | 2008-04-17 | |||
| JP2002290130A | 2002-10-04 |
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: