MULTI-INPUT MULTI-OUTPUT (MIMO) ANTENNA
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United States of America Patent
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Issued Date -
Sep 8, 2016
app pub date -
Mar 3, 2016
filing date -
Mar 5, 2015
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Abstract
A multi-input multi-output antenna including a substrate, a first multi-band antenna, a second multi-band antenna, and a multi-band filter is provided. The first multi-band antenna includes first and second radiators operated in first and second bands respectively. The second radiator extends from a first terminal of the first radiator and surrounds the first radiator. The operating frequency of the first band is higher than that of the second band. The second multi-band antenna includes third and fourth radiators operated in the first and the second bands respectively. The fourth radiator extends from a second terminal of the third radiator and surrounds the third radiator. The multi-band filter has a first filter part and a second filter part orthogonal to each other. The first filter part and the second filter part filter a first current and a second current respectively.
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