AMPLITUDE TAPERED SWITCHED BEAM ANTENNA SYSTEMS
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United States of America Patent
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Issued Date -
Dec 25, 2014
app pub date -
Jun 19, 2013
filing date -
Jun 19, 2013
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Abstract
Switched beam antenna systems are disclosed. The disclosed antenna systems include an antenna having multiple, co-linear arrays of electromagnetic radiating elements and a Butler Matrix feed network that feeds the antenna. Each of the arrays of electromagnetic radiating elements includes an identical number of radiating elements. At least one antenna port of the Butler Matrix feed network is connected to a power divider/combiner to split the signal strength at the at least one antenna port such that signal power is distributed unequally among the arrays of electromagnetic radiating elements. Power is distributed among the arrays in a manner that provides an improved balance of side lobe suppression and overall antenna gain.
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