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US 10,871,352 B2Granted
Metasurface device for cloaking and related applications
AssigneeThe Regents of the University of California
InventorsBoubacar Kante, Li-Yi Hsu
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AssigneeThe Regents of the University of California
InventorsBoubacar Kante, Li-Yi Hsu
Estimating the term…
Provided are systems and methods for cloaking an object on a ground plane. A thin dielectric metasurface is used to reshape the wavefronts distorted by the object in order to mimic the reflection pattern of a flat ground plane. To achieve such “carpet cloaking”, the reflection angle is made equal to the incident angle everywhere on the object by providing a graded metasurface with a designed phase gradient. This provides additional phase to the wavefronts to compensate for the phase difference amongst lightpaths induced by the geometrical distortion. One exemplary metasurface is described which is designed for the microwave range using highly sub-wavelength dielectric resonators. The approach can be applied to hide any scatterer under a metasurface of class C1 (first derivative continuous) on a groundplane not only in the microwave regime, but also at other frequencies, including higher frequencies, up to the visible.
A cloaking device for an object configured to cloak the object from incident electromagnetic waves having a wavelength or range of wavelengths, comprising:
A method for designing a cloaking device for an object, comprising:
A cloaking device for an object configured to cloak the object from incident electromagnetic waves having a wavelength or range of wavelengths, comprising:
A cloaking device for an object configured to cloak the object from incident electromagnetic waves having a wavelength or range of wavelengths, comprising:
Dependencies are inferred from the claim text.