ANTENNA ARRAY FOR A HI/LO ANTENNA BEAM PATTERN AND METHOD OF UTILIZATION
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United States of America Patent
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app pub date -
Feb 28, 2008
filing date -
Feb 28, 2007
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Abandoned
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Abstract
Antenna arrays configured to produce directional antenna beam patterns are described. An antenna array produces a Hi antenna beam pattern and a Lo antenna beam pattern. Based on received satellite information, a mechanically scanning directional antenna system operates to adjust the azimuth direction of the antenna between the two beam patterns to maintain optimum satellite signal reception at different geographical locations and different elevation angles. In one embodiment an antenna mechanically adjusts direction based on geographical location information such as latitude and longitude received by a Global Positioning System (GPS) receiver. In another embodiment, an antenna mechanically adjusts its direction based on received satellite quality metrics such as signal to noise ratio, bit error rate, and/or received power, and uses these signal quality metrics to track the satellite.
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