Flexible reconfigurable intelligent surface with mechanically tunable beam scanning
AssigneeDell Products L.P.
InventorsNavjot Kaur Khaira, Tejinder Singh, Morris Repeta
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Abstract
A device for selectively reflecting signals is disclosed. The device may include a flexible reconfigurable intelligent substrate. Different portions or segments of the reconfigurable intelligent substrate can be exposed in an illumination window. Each of the segments has a different phase response. Positioning a particular segment in the illumination window achieves a particular reflection direction. The reflection direction can be tuned manually using a tuning mechanism configured to reposition the reconfigurable intelligent substrate relative to the illumination window.
Claims20
A device comprising:
- a reconfigurable intelligent surface that includes a flexible substrate and a two-dimensional array of unit cells distributed on the flexible substrate;
- a first movement mechanism operatively connected with a first end of the flexible substrate;
- and
- a second movement mechanism operatively connected with a second end of the flexible substrate, wherein the first and second movement mechanisms cooperate to reposition the reconfigurable intelligent surface,
- wherein the reconfigurable intelligent surface, the first movement mechanism, and the second movement mechanism are arranged to selectively expose a segment of the reconfigurable intelligent surface in an illumination window,
- wherein the illumination window defines an aperture that is smaller than the reconfigurable intelligent surface such that only a subset of the unit cells is exposed to an incident signal, and
- wherein repositioning the reconfigurable intelligent surface changes which subset of the unit cells is included in the aperture to change a reflection direction of the incident signal.
A device comprising:
- a reconfigurable intelligent surface that includes a layer configured to reflect an electromagnetic signal and a flexible substrate, the layer comprising a two-dimensional array of unit cells distributed on the flexible substrate;
- a tuning mechanism operatively connected with a first end of the reconfigurable intelligent surface and a second end of the reconfigurable intelligent surface, wherein the tuning mechanism is configured to reposition the reconfigurable intelligent surface with respect to an illumination window,
- wherein a phase response of a segment of the reconfigurable intelligent surface exposed in the illumination window determines a reflection direction of an incident signal,
- wherein the illumination window defines an aperture smaller than the reconfigurable intelligent surface such that only a subset of the unit cells is exposed to the incident signal, and
- wherein beam scanning is achieved by repositioning the reconfigurable intelligent surface to expose different subsets of the two-dimensional array within the aperture.
Dependencies are inferred from the claim text.