Flattened dihedral-shaped device possessing an adapted (maximized or minimized) equivalent radar cross section

A dihedral-shaped device comprising:

• first and second plates that mutually form an angle of π−2α, with 0<α<π/4, wherein each plate comprises:
• a ground plane,
• at least one dielectric layer, and
• an array of radiating elements, including a first array of radiating elements of the first plate and a second array of radiating elements of the second plate, an incident wave being reflected by the device through double reflection on both plates,
• and wherein:
• the first array of radiating elements of the first plate enables a first phase shift to be generated, from an exterior of the first plate towards a center of the dihedral in following a first axis perpendicular to an axis of intersection of the first and second plates, according to a determined phase law, and
• the second array of radiating elements of the second plate enables a second phase shift to be generated, from an exterior of the second plate towards the center of the dihedral in following a second axis perpendicular to said axis of intersection of the first and second plates, according to the determined phase law,
• the first and second phase shifts produced by the first and second arrays of radiating elements of the first and second plates making it possible to introduce a deviation relative to a specular reflection for a given operating frequency.