ANTI-REFLECTING COVERING STRUCTURE WITH A DIFFRACTION GRATING USING RESONANT ELEMENTS

摘要

A diffractive device for fitting to a façade of a building, or to any other reflective wall, exposed to electromagnetic radiation emitted by a source located at a distance from the building, the device including a plurality of tubular resonant elements arranged on the façade of the building, where the resonant elements are arranged in a substantially parallel manner on the façade of the building in such a way as to form a diffraction grating and are oriented in a substantially perpendicular direction to the plane defined by the propagation vectors of the incident and reflected electromagnetic waves, each resonant element being configured to form an LC resonator capable of re-radiating a wave corresponding to the incident wave affected by a phase shift; the set of resonant elements being arranged in such a way that the incident wave is diffracted in a preferential direction.

主权项

1. A diffraction device for fitting to the facade of a building, or any other reflecting wall, exposed to an electromagnetic radiation transmitted by a source located at a distance from the building, the diffraction device comprising:
a plurality of tubular resonant elements positioned on the facade of said building, wherein, these resonant elements being positioned in a substantially parallel way on the facade of said building, so as to form a diffraction grating, and being oriented in a direction substantially perpendicular to the plane defined by the propagation vectors of the incident and reflected electromagnetic waves, each resonant element is configured to form a resonator of the “LC” type adapted to re-radiate a wave corresponding to the incident wave subjected to a phase shift; and the assembly of the resonant elements being arranged in such a way that the incident wave is diffracted in a preferred direction.