Experimental Demonstration of Active Electromagnetic Cloaking

By M. Selvanayagam, George V. Eleftheriades. 2013

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Perfect control of reflection and refraction using spatially dispersive metasurfaces (2016, background): “The same model describes also the concept of field control and active cloaking using active Huygens’ surfaces [13,34].”
Invisibility and Cloaking: Origins, Present, and Future Perspectives (2015, background): “Interestingly, it has been discussed how cloaking for finite signals may be accomplished with a nonlocal response, which may be implemented—at least in principle—with an array of active sources driven by an array of sensors around the scatterer [180,181].”
Thin perfect absorbers for electromagnetic waves: Theory, design, and realizations (2015, background): “This idea is similar to the recently introduced concept of the active cloak [82,83], where arrays of antennas are used to generate fields which cancel fields scattered from an object which one wants to cloak.”
Unidirectional Cloaking Based on Metasurfaces with Balanced Loss and Gain (2015, background): “[15] is achieved by surrounding the cylinder with a series of independent magnetic loop antennas which collectively radiate a field opposite to the scattered field by the bare cylinder.”