Spherical perturbation of an array antenna
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United States of America Patent
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Jun 9, 2015
Grant Date -
Nov 8, 2012
app pub date -
Mar 9, 2010
filing date -
Oct 16, 2009
priority date (Note) -
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Abstract
The present invention provides a high-performance and small sized helical antenna element and array thereof for use in an aircraft communication system or the like, where stringent spatial restrictions and gain requirements generally apply. The performance of the array is enhanced by increasing the lateral distances between the antenna elements over a portion of the elements where the windings thereof have high current amplitude. The sweeping envelope of the array is maintained small by recovering the initial distancing over a portion of the elements where the windings thereof have low current amplitude.
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