GPS navigation and differential-correction beacon antenna combination
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United States of America Patent
Stats
-
Oct 22, 1996
Grant Date -
N/A
app pub date -
Aug 8, 1994
filing date -
Aug 8, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An antenna system comprises a stack of elements that include a GPS patch antenna on a groundplane with an associated low-noise amplifier (LNA), a first Faraday shield of flat ribbon cable covering a first ferrite rod magnetic field antenna, a second ferrite rod magnetic field antenna separated from and orthogonal to the first ferrite rod magnetic field antenna, a second Faraday shield of flat ribbon cable covering the second ferrite rod magnetic field antenna and having a LNA for each of the ferrite rod magnetic field antennas. A third Faraday shield is positioned between the first and second ferrite rod magnetic field antennas. All the Faraday shields are connected to ground such that there are no loops that may act as shorted turns to avoid desensitizing the ferrite rod magnetic field antennas.
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Cited Art Landscape
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