Billboard antenna
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United States of America Patent
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-
Aug 22, 2000
Grant Date -
N/A
app pub date -
Jul 28, 1998
filing date -
Jul 28, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A small antenna comprising an unequal current density center-fed dipole employing a conductive trace and a ground plane counterpoise positioned substantially perpendicular to each other. According to one embodiment, a conductive trace is etched onto a dielectric substrate to form a printed circuit. According to a further embodiment, the conductive trace has two sets of orthogonal components; one set of components captures the desired electric field polarization and the second set of components cancels out the undesired cross polarization. A portion of a signal received on the first set of components adds together to produce a desired resultant vector and a portion of the signal received on the second set of components adds together to cancel out the undesired vector.
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