Patent ID: 7719463

Claim:
A reflectarray comprising an array of patch elements (10-13; 89, 91), each patch element being designed to shift a phase of an incident polarized electromagnetic wave by a predetermined phase angle α, and each patch element having a cut ring shape ( 28 ) formed of a conductive ring ( 30 ) with at least one crossing gap ( 32 ), the conductive ring having an outer diameter r o and an inner diameter r i and each crossing gap having a respective width h , wherein diameters r o , r i and width h are adjusted so that a phase shift β defined by the following relations is different from zero: φ( E ox )=φ( E ix )+α (1) φ( E oy )=φ( E iy )+α+β (2) where: and E ix and E iy are the orthogonal components of the incident polarized electromagnetic wave collinear with directions u x and u y , respectively, E ox and E oy are the orthogonal components of the reflected polarized electromagnetic wave collinear with directions u x and u y respectively, φ(E ox ) and φ(E oy ) are the phases of the orthogonal components E ox and E oy respectively, and φ(E ix ) and φ(E iy ) are the phases of the orthogonal components E ix and E iy respectively.