| CPC G02F 1/0123 (2013.01) | 20 Claims |
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1. An electrically tunable metasurface comprising:
a plurality of circular scatterer rings, each scatterer ring of the plurality of circular scatterer rings includes bow-tie shaped radiator elements, in which the bow-tie shaped radiator elements have a same geometric configuration; and
a plurality of electrodes, each electrode of the plurality of electrodes is associated with a scatterer ring of the plurality of the circular scatterer rings respectively, and each electrode of the plurality of electrodes being configured to provide a specific biasing voltage to its associated circular scatterer ring respectively,
wherein a phase response of an outer scatterer ring of the plurality of circular scatterer rings is smaller as compared to a phase response of an inner scatterer ring of the plurality of circular scatterer rings.
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