Radar antenna assembly for recognition of object in environment of motor vehicle, has structural elements with structures, where diffraction of waves leads to suppression of radiation of waves in directions of diffraction of higher order

摘要

The assembly has a presetting structure designed in the form of a drum (3) and presetting radiation angle-distribution of radar waves, which come from a waveguide (2). The structure includes structural elements (7) e.g. ribs, with rib-super structures (9), whose momentary operative distance (pm) to each other permits diffraction of the waves in lower and higher orders. The elements include sub-structures (10) such that diffraction of the waves at the sub-structures leads to suppression of radiation of the radar waves in directions of diffraction of the higher order at the rib-super structures.