Title:
コイルアンテナ素子およびアンテナモジュール
Document Type and Number:
Japanese Patent JP5700233
Kind Code:
B2
Abstract:
In a coil antenna device, a multilayer structure includes non-magnetic sheets and magnetic sheets stacked on each other. A coil conductor is provided in the multilayer structure such that a portion of the magnetic material defines a magnetic core and such that a coil axis extends along a principle surface of the multilayer structure. The coil conductor includes a plurality of line conductors each of which extends on one principle surface side of the magnetic material, a plurality of line conductors each of which extends on the other principle surface side of the magnetic material, and a plurality of via-hole conductors extending in a thickness direction of the multilayer structure so as to be surrounded with the magnetic material. The plurality of via-hole conductors defines a coiled structure together with the line conductors.
Inventors:
Water Kuniaki
Tokiko Kato
Tokiko Kato
Application Number:
JP2013551808A
Publication Date:
April 15, 2015
Filing Date:
April 24, 2013
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01Q7/06
Domestic Patent References:
| JP2012039242A | 2012-02-23 | |||
| JP2010259068A | 2010-11-11 | |||
| JP2003218626A | 2003-07-31 | |||
| JP2012039242A | 2012-02-23 |
Attorney, Agent or Firm:
Sakai Masatoshi