Method and apparatus for pointing the beam of a wind profiler
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United States of America Patent
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May 15, 2007
Grant Date -
Apr 13, 2006
app pub date -
Dec 16, 2003
filing date -
Dec 17, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a method and apparatus for pointing the beams (63 67) of a wind profiler comprising a stationary antenna matrix (61) with several individual antenna elements (62). According to the method an input signal is fed to the antenna matrix (61), and the phase of the input signal is adjusted for the individual antenna elements (62) in order to point the beam (63 67) of the profiler. In accordance with the invention separate feeder lines for each beam are used for feeding the signals to the antenna elements (62), and the phase differences between the individual antenna elements (62) are controlled with hybrid coupler elements (3, 4).
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