Patent ID: 8847835

Claim:
A radar antenna arrangement comprising: at least one longitudinal waveguide into which electromagnetic waves are coupled in such a manner that the electromagnetic waves expand in a longitudinal direction (X) of the waveguide, wherein the waveguide comprises two metallic surfaces ( 31 , 41 ) and a dielectric medium ( 32 , 42 ) located between the two metallic surfaces, the metallic surfaces ( 31 , 41 ) run in the longitudinal direction and the waveguide is open in a first transverse direction (Y) to the waveguide and the two metallic surfaces ( 31 , 41 ) are at a distance from each other in a second transverse direction (Z), wherein the second transverse direction stands both vertically to the first transverse direction (Y) and to the longitudinal direction (X) of the waveguide; and an interference structure ( 12 ) having a plurality of metallic sections, wherein the interference structure is located in proximity to the waveguide, wherein a central longitudinal axis of the interference structure is at a distance from the waveguide in the first transverse direction (Y) to the waveguide and is arranged approximately parallel to the longitudinal direction (X) of the waveguide, in such a manner that the interference structure effects an adjusted radiation of radar waves.