System and method for real time multi-frequency operation using metasurface-based mechanically controlled tunable polarization conversion

A processor implemented method, comprising:

• providing, a base station in communication with a plurality of user equipment, wherein the base station comprises a signal source that generates a plurality of communication signals, and an antenna array comprising a plurality of antennas coupled to a two-dimensional array structure of a metasurface;
• receiving, the plurality of communication signals generated by the signal source on the two-dimensional array structure of a metasurface through the antenna array, wherein the two-dimensional array structure of the metasurface comprises a plurality of reflective unit cells arranged in a periodic manner with a predefined periodicity, and wherein each of the plurality of reflective unit cells of the two-dimensional array structure of the metasurface comprises a first layer and a second layer separated by a tunable airgap there between, and the first layer of each of the plurality of reflective unit cells comprises a square patch diagonally enclosed by a first set of L-shaped resonators, and a second set of L-shaped resonators enclosing the first set of L-shaped resonators placed on a dielectric substrate at a predefined distance from the first set of L-shaped resonator;
• and
• controlling, a motorized mechanical arrangement to translate a back and forth motion of the second layer of each of the plurality of reflective unit cells of the two-dimensional array structure of the metasurface such that the tunable air gap between the first layer and the second layer of each of the plurality of reflective unit cells is modulated to control one or more operational parameters associated with polarization conversion of the plurality of communication signals generated by the signal source.

One or more non-transitory machine-readable information storage mediums comprising one or more instructions which when executed by one or more hardware processors cause:

• providing, a base station in communication with a plurality of user equipment, wherein the base station comprises a signal source that generates a plurality of communication signals, and an antenna array comprising a plurality of antennas coupled to a two-dimensional array structure of a metasurface;
• receiving, the plurality of communication signals generated by the signal source on the two-dimensional array structure of a metasurface through the antenna array, wherein the two-dimensional array structure of the metasurface comprises a plurality of reflective unit cells arranged in a periodic manner with a predefined periodicity, and wherein each of the plurality of reflective unit cells of the two-dimensional array structure of the metasurface comprises a first layer and a second layer separated by a tunable airgap there between, and the first layer of each of the plurality of reflective unit cells comprises a square patch diagonally enclosed by a first set of L-shaped resonators, and a second set of L-shaped resonators enclosing the first set of L-shaped resonators placed on a dielectric substrate at a predefined distance from the first set of L-shaped resonator;
• and
• controlling, a motorized mechanical arrangement to translate a back and forth motion of the second layer of each of the plurality of reflective unit cells of the two-dimensional array structure of the metasurface such that the tunable air gap between the first layer and the second layer of each of the plurality of reflective unit cells is modulated to control one or more operational parameters associated with polarization conversion of the plurality of communication signals generated by the signal source.