ANTENNA DEVICE AND ELECTRONIC APPARATUS
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United States of America Patent
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Issued Date -
Jul 7, 2016
app pub date -
Sep 3, 2014
filing date -
Sep 9, 2013
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Abstract
The balance between communicable regions in the x-direction and the y-direction with respect to an antenna on the side of a reader/writer that is facing in the xy-plane is improved, allowing reliable communication via an electromagnetic field signal transmitted from the reader/writer. An antenna device incorporated into an electronic apparatus and configured to communicate with an external device via an electromagnetic field signal includes an antenna coil (11A) having formed therein a loop antenna (21A) disposed on a peripheral portion of a casing surface of the electronic apparatus and having an external shape formed by bending a long side of a rectangular shape into which a coil that inductively couples to the external device is wound, thereby improving the balance between communicable regions in the x-direction and the y-direction with respect to an antenna (121) on the side of a reader/writer that is facing in the xy-plane.
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