Antenna device and communication terminal apparatus
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United States of America Patent
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Oct 20, 2015
Grant Date -
Jun 13, 2013
app pub date -
Feb 7, 2013
filing date -
Oct 12, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
An antenna device includes an antenna coil including a first conductive pattern disposed on a first major surface of a magnetic sheet, a second conductive pattern disposed on a first major surface of a non-magnetic sheet, and an interlayer conductor connecting the first conductive pattern and second conductive pattern. The antenna coil including the first conductive pattern and second conductive pattern defines a spiral or substantially spiral pattern. The antenna device is a resin multilayer structure in which its base body is a laminate of the magnetic layer and non-magnetic layer and the predetermined patterns are disposed inside and outside the laminate.
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