Antenna structure and wireless communication device employing same
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United States of America Patent
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May 23, 2017
Grant Date -
Feb 26, 2015
app pub date -
Aug 20, 2014
filing date -
Aug 22, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A wireless communication device includes a substrate and an antenna structure. The substrate includes a first surface and a second surface opposite the first surface. The antenna structure includes a feeding antenna, a metal ring, and a parasitic antenna. The feeding antenna has a feeding point configured to feed current signal. The metal ring is positioned apart from the feeding antenna, the metal ring is configured to be grounded and resonate with the feeding antenna to generate a first high-frequency resonate mode. The parasitic antenna is connected to the metal ring, the parasitic antenna is configured to resonate with the feeding antenna to generate a second high-frequency resonate mode, and resonate with the metal ring to generate a low-frequency mode.
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