Title:
COIL ANTENNA ELEMENT AND ANTENNA MODULE
Document Type and Number:
WIPO Patent Application WO/2013/168558
Kind Code:
A1
Abstract:
A stack (12) is obtained by stacking non-magnetic body sheets (SH1a-SH2b) and magnetic body sheets (SH2a-SH2c). A coil conductor (14) is provided to the stack (12) so that a part of the magnetic body forms a magnetic core and the winding axis extends along a principal surface of the stack. The coil conductor (14) has: a plurality of linear conductors (14a, 14a,...), each of the linear conductors (14a, 14a,...) extending on the side of one of the principal surfaces of the magnetic body; a plurality of linear conductors (14b, 14b,...), each of the linear conductors (14b, 14b,...) extending on the side of the other principal surface of the magnetic body; and a plurality of via-hole conductors (14c, 14c,..., 14d, 14d,...) formed in the thickness direction of the stack (12) so as to be enclosed by the magnetic body. The via-hole conductors (14c, 14c,..., 14d, 14d,...) form a wound body with the linear conductors (14a, 14a,...), (14b, 14b,...).
Inventors:
YOSUI KUNIAKI (JP)
KATO NOBORU (JP)
KATO NOBORU (JP)
Application Number:
PCT/JP2013/061978
Publication Date:
November 14, 2013
Filing Date:
April 24, 2013
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01Q7/08; H01F17/00
Foreign References:
| JP2009284476A | 2009-12-03 | |||
| JP2003218626A | 2003-07-31 |
Attorney, Agent or Firm:
SAKAI, MASATOSHI (JP)
Boundary Masatoshi (JP)
Boundary Masatoshi (JP)
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