Electronic device comprising a metasurface

1 . An electronic device adapted to receive and process an electromagnetic radiation, such as a radio frequency signal from a wireless communication system, the electronic device comprising:

a metasurface for intercepting the electromagnetic radiation, the metasurface comprising a plurality of active elements for sensing at least one parameter of the electromagnetic radiation as it is actually received at the electronic device, wherein the active elements of said plurality of active elements are controllable to implement a plurality of configurations of the metasurface each one corresponding to a radiation pattern with which the electromagnetic radiation is passed through the metasurface, and

processing circuitry communicably coupled to the metasurface, wherein the processing circuitry is configured to iteratively:

receive the sensed at least one parameter from the metasurface;

identify, based on the at least one parameter of the electromagnetic radiation, an optimized configuration, among the plurality of configurations, that optimizes electromagnetic radiation reception at the electronic device, and

control the active elements to implement the optimized configuration,

wherein the metasurface acts as an antenna of the electronic device and wherein the optimized configuration implemented by the active elements allows optimizing electromagnetic radiation reception at the electronic device through the metasurface,

wherein the processing circuitry is configured to control the active elements according to space-time coding, whereby the metasurface is configured to manipulate the electromagnetic radiation in both space and frequency domains by the processing circuitry controlling a reflection coefficient of the metasurface with discrete phase or amplitude states by applying control voltages to the active elements.

2 . The electronic device according to claim 1 , wherein the processing circuitry is configured to identify the optimized configuration based on:

a predefined configuration database comprising a plurality of optimized configurations as a function of the at least one parameter, or

an artificial intelligence algorithm.

3 . The electronic device according to claim 1 , further comprising an antenna arrangement allowing the electronic device to receive the electromagnetic radiation, wherein the optimized configuration implemented by the active elements allows optimizing electromagnetic radiation reception at the antenna arrangement through the metasurface.

4 . The electronic device according to claim 3 , wherein the metasurface at least partially overlaps a reception surface of the antenna arrangement designed to receive the electromagnetic radiation.

5 . The electronic device according to claim 1 , wherein the metasurface is external or internal to a case of the electronic device.

6 . The electronic device according to claim 1 , wherein the processing circuitry comprises a Field-Programmable Gate Array unit, being programmable according to the optimized configuration.

7 . The electronic device according to claim 1 , wherein the at least one parameter of the electromagnetic radiation comprises at least one among spectrum, polarization and angle of incidence of the electromagnetic radiation.

8 . The electronic device according to claim 1 , wherein the active elements comprise one or more among field-effect transistors, micro-electro-mechanical systems, varactors and positive-intrinsic-negative (PIN) diodes.

9 . A method for operating an electronic device adapted to receive and process an electromagnetic radiation, such as a radio frequency signal from a wireless communication system, wherein the electronic device comprises a metasurface for intercepting the electromagnetic radiation, the metasurface comprising a plurality of active elements for sensing at least one parameter of the electromagnetic radiation as it is actually received at the electronic device, and wherein the active elements of said plurality of active elements are controllable to implement a plurality of configurations of the metasurface each one corresponding to a radiation pattern with which the electromagnetic radiation is passed through the metasurface,

the method comprising iteratively:

receiving the sensed at least one parameter from the metasurface;

identifying, based on the at least one parameter of the electromagnetic radiation, an optimized configuration, among the plurality of configurations, that optimizes electromagnetic radiation reception at the electronic device, and

controlling the active elements to implement the optimized configuration,

wherein the metasurface acts as an antenna of the electronic device and wherein the optimized configuration implemented by the active elements allows optimizing electromagnetic radiation reception at the electronic device through the metasurface,

wherein the method further includes controlling the active elements according to space-time coding, whereby the metasurface is configured to manipulate the electromagnetic radiation in both space and frequency domains by controlling a reflection coefficient of the metasurface with discrete phase or amplitude states by applying control voltages to the active elements.

10 . The electronic device according to claim 8 , wherein the active elements comprise the field-effect transistors.

11 . The electronic device according to claim 8 , wherein the active elements comprise the micro-electro-mechanical systems.

12 . The electronic device according to claim 8 , wherein the active elements comprise the varactors and the PIN diodes.

13 . The electronic device according to claim 12 , wherein a programming of the metasurface includes switching each PIN diode between on and off states corresponding to an impedance matching or impedance mismatching between an impedance of the active elements and an impedance of a free space through which a electromagnetic radiation is propagated.