Slotted cable localizer antenna
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United States of America Patent
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-
Feb 5, 2002
Grant Date -
N/A
app pub date -
Jan 20, 1999
filing date -
Jan 20, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
This invention relates to improvements in slotted cable runway localizer antennas for the Instrument Landing System (ILS). The antenna radiates simultaneous sum and difference patterns carrying standard ILS reference (CSB) and deflection (SBO) components of the transmitted signal. The signal components from an ILS transmitter are supplied through an rf bridge (hybrid) to both ends of the slotted cable structure. Optional isolators inserted in the coaxial feed lines improve the impedance presented to the transmitter.
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Cited Art Landscape
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