Patent ID: 9653807
Date: 2017-05-16
CPC Classifications: G01S,H01Q

Claim:
1. A planar array antenna for a radar sensor, comprising: a plurality of base antenna elements arranged in a common plane on a printed circuit board; and additional secondary antenna elements situated in an offset plane, wherein each of the additional secondary antenna elements is (i) situated above an assigned one of the base antenna elements, and (ii) situated individually on an associated individual carrier, a lower surface of each of the additional secondary antenna elements contacting an upper surface of the respective associated individual carrier; wherein a lower surface, opposite the upper surface, of each of the associated individual carriers is positioned on the printed circuit board, wherein each of the additional secondary antenna elements covers only a portion of the assigned one of the base antenna elements, wherein the base antenna elements and supply lines assigned to the base antenna elements are configured as microstrip conductors, wherein at least one first portion of the lower surface of each of the individual carriers is bonded to the printed circuit board, wherein at least one second portion of the lower surface of each of the individual carriers is bonded to the assigned one of the base antenna elements, and wherein each of the base antenna elements, which is assigned to one of the additional secondary antenna elements, is covered by a bonding film, by which each of the individual carriers is fixed on the printed circuit board.