Parasitic element for helical antenna
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United States of America Patent
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Jan 6, 2009
Grant Date -
Jan 17, 2008
app pub date -
Jun 27, 2007
filing date -
Jun 28, 2006
priority date (Note) -
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Abstract
A parasitic element for a helical antenna having at least one helix conductor extending from a secured first longitudinal end of the antenna to an opposite free second longitudinal end thereof around an antenna major-axis. The parasitic element includes an electrically conductive ring located adjacent and spaced apart from the second end in a direction leading away from the first end with the ring axis being parallel to and substantially collinear with the antenna major-axis. The ring has an outer diameter substantially equal to the diameter of the helix conductor at the second end.
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