Two-dimensionally electronically-steerable artificial impedance surface antenna
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United States of America Patent
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Jan 16, 2018
Grant Date -
Jul 30, 2015
app pub date -
Apr 9, 2015
filing date -
Nov 3, 2010
priority date (Note) -
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Abstract
A method and apparatus for electronically steering an antenna system is provided. A surface wave is propagated along each of a number of surface wave channels formed in each of a plurality of radiating elements to form a radiation pattern. Each surface wave channel in the number of surface wave channels formed in each radiating element in the plurality of radiating elements is coupled to a transmission line configured to carry a radio frequency signal using a surface wave feed in a plurality of surface wave feed associated with the plurality of radiating elements. A main lobe of the radiation pattern is electronically steered by controlling voltages applied to a plurality of switch elements connecting a plurality of impedance elements in each of the number of surface wave channels.
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