Active manipulation of electromagnetic wave propagation in metamaterials
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United States of America Patent
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Oct 4, 2016
Grant Date -
Mar 27, 2014
app pub date -
Nov 1, 2011
filing date -
Nov 5, 2010
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Abstract
An apparatus for controlling propagation of an electromagnetic wave includes a metamaterial having an array of cells, each cell containing a metallic structure having a resonant frequency; a plurality of devices integrated in the metamaterial, each of said devices being in electrical communication with a metallic structure in a cell in the array of cells; and a controller for electrically activating each of said plurality of devices to cause said resonant frequency to change, thereby causing at least one of a permeability and permittivity of the metamaterial to change.
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