Patent ID: 7636070

Claim:
An antenna enabling the shaping of at least one beam of radioelectric waves ( 4 , 5 , 61 , 62 , 91 , 92 ) of at least one determined wavelength, of the type comprising at least one radiating element ( 2 ) the waves, placed in a set of wires or bars ( 1 ) reflective of the wave and substantially parallel to one another, made of a Photonic Band Gap (PBG) material and forming a determined structure, said determined structure including defects so as to shape said at least one beam in a direction relative to the position and/or of the configuration of said defects, wherein said wires or bars and the defects are arranged on a set of N concentric closed curves of a plane, N being greater than or equal to two, the radiating element being arranged inside the innermost curve and the distance between the curves is smaller than a quarter of the wavelength, the length of a wire/bar being greater than or equal to half the wavelength.