ANTENNA DEVICE AND COMMUNICATION DEVICE

WIPO Patent Application WO/2014/017352

A1

Provided is an antenna device wherein mutual interference between antennas is minimized while a plurality of antennas is efficiently positioned in a space saving manner. The antenna device (10) is provided with a loop antenna (3) having a spiral coil-shaped loop antenna element (2), a magnetic sheet (4b) on which the loop antenna element (2) is mounted, and a magnetic resin layer (4a). Moreover, an antenna section (13), which is positioned in an inner diameter (7) of the loop antenna (3), comprises a spiral coil-shaped antenna element (12), a magnetic sheet (14b) on which the antenna element (12) is mounted, and a magnetic resin layer (14a). The magnetic sheet (4b) of the loop antenna (3) is annularly formed with an empty inner diameter (7), and the magnetic sheet (4b) of the loop antenna (3) and the magnetic sheet (14b) of the antenna section (13) are physically isolated. The magnetic resin layers (4a, 14a) of the loop antenna (3) and the antenna section (13) are also physically isolated.

KUMURA TATSUO (JP)
KUBO YUSUKE (JP)
RYOSON HIROYUKI (JP)

PCT/JP2013/069404

January 30, 2014

July 17, 2013

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DEXERIALS CORP (JP)
KUMURA TATSUO (JP)
KUBO YUSUKE (JP)
RYOSON HIROYUKI (JP)

H01Q21/30; H01Q1/38; H01Q7/06; H01Q21/28

JP2006126901A	2006-05-18
JP2010219652A	2010-09-30
JP2007116347A	2007-05-10
JP2011103533A	2011-05-26

KOIKE, Akira et al. (JP)
Akira Koike (JP)

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