Direction finding BAVA array with integrated communications antenna system and related method
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United States of America Patent
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Dec 6, 2016
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app pub date -
Apr 26, 2013
filing date -
Apr 26, 2013
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Abstract
A system and related method is disclosed including a symmetrical array of Balanced Antipodal Vivaldi Antenna (BAVA) elements. Within the array a plurality of dual polarization sub-arrays comprised of individual BAVA elements oriented in a first polarization and individual BAVA elements oriented in a second polarization. The plurality of sub-arrays maintains low mutual coupling and cross polarization rejection between sub-arrays within the array and between elements within the sub-array. As a signal is received by each of the individual BAVA elements, signals from each first polarized BAVA element and each second polarized BAVA element of a sub-array are combined to produce a single signal of the first polarization and a single signal of the second polarization per sub-array. A DF processor receives the two signals and determines the angle of arrival of the signal. A communications link within the array sends and receives information and commands for array operation.
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