Antenna with active elements
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United States of America Patent
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Dec 13, 2011
Issued Date -
N/A
app pub date -
Sep 29, 2010
filing date -
Aug 20, 2007
priority date (Note) -
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Abstract
A multi-frequency antenna comprising an IMD element, one or more active tuning elements and one or more parasitic elements. The IMD element is used in combination with the active tuning and parasitic elements for enabling a variable frequency at which the antenna operates, wherein, when excited, the parasitic elements may couple with the IMD element to change an operating characteristic of the IMD element.
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