Broadband antenna structures
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United States of America Patent
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-
Nov 15, 2005
Grant Date -
Nov 25, 2004
app pub date -
Jun 28, 2004
filing date -
Apr 10, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There is disclosed an antenna exhibiting resonance over a broad frequency band or over a plurality of closely-spaced frequency bands, comprising a ground plane, a non-driven element affixed substantially perpendicular to the ground plane, a driven element affixed substantially perpendicular to the ground plane and a horizontal conductor electrically connected between the driven and the non-driven elements and disposed substantially parallel to the ground plane. The non-driven and the driven elements further comprise periodic slow wave structures. The periodic slow wave structures are configured to provide a substantially constant propagation factor with respect to the applied signal frequency, such that the antenna exhibits broad resonance characteristics.
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