Antenna device and communication terminal apparatus
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United States of America Patent
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Jan 9, 2018
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N/A
app pub date -
Jun 8, 2016
filing date -
Sep 7, 2010
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Abstract
An antenna device that includes a coil antenna with a coil conductor wound around a winding axis. The device further includes a planar conductor with a surface and an edge end portion, where the surface extends in the direction of the winding axis and the edge end portion is adjacent to a coil opening of the coil conductor. A booster antenna is also provided and includes a looped or spiral coil conductor and is coupled to the planar conductor and/or the coil antenna.
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