Multiband planar antenna and electrical apparatus using the same
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United States of America Patent
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N/A
Issued Date -
Nov 6, 2008
app pub date -
May 5, 2008
filing date -
May 4, 2007
priority date (Note) -
Abandoned
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Abstract
A multi-band planar antenna including a metal plate, a first radiation portion, a second radiation portion, and a grounding portion is provided. The plate includes a first and a second edge. The first radiation portion is configured on the upper of the plate by a first slot, and the first slot extends to the inner of the plate from the first edge. The second radiation portion is configured on the upper side of the plate adjacent to the second edge by a second slot and a third slot adjacent to the first radiation portion. The second slot extends to the inner of the metal plate from the second edge. The third slot is formed between the first and the second slot. The grounding portion is formed on the lower of the metal plate. The first and the second radiation portion transmit and receive the low-band and high-band of RF signal respectively.
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