Dynamic polarization and coupling control from a steerable, multi-layered cylindrically fed holographic antenna
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United States of America Patent
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Oct 1, 2019
Grant Date -
Aug 20, 2015
app pub date -
Nov 21, 2014
filing date -
Feb 19, 2014
priority date (Note) -
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Abstract
An apparatus is disclosed herein for a cylindrically fed antenna and method for using the same. In one embodiment, the antenna comprises: an antenna feed to input a cylindrical feed wave; a first layer coupled to the antenna feed and into which the feed wave propagates outwardly and concentrically from the feed; a second layer coupled to the first layer to cause the feed wave to be reflected at edges of the antenna and propagate inwardly through the second layer from the edges of the antenna; and an array of plurality of surface scattering metamaterial antenna elements coupled to the second layer and have slots oriented either +45 degrees or −45 degrees relative to the cylindrical feed wave impinging at a central location of each slot.
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