Patent ID: 9190717
Filing Date: 2015-11-17
Classification: G01S,H01Q

Abstract:
1. A radar sensor, comprising: an antenna array including multiple antenna elements situated next to one another and connected in series via delay lines, and at least one feeding point at an outer one of the antenna elements; and at least two transmitting and receiving units, each to generate and evaluate a radar signal at a predefined frequency, the at least two transmitting and receiving units being connected to the at least one feeding point of the antenna array, and the predefinable frequency of the radar signal of the at least two transmitting and receiving units being predefinable independently of one another, wherein each of the transmitting and receiving units has a high frequency generator to generate the radar signal and a received radar signal is mixed with the signal generated by the high frequency generator for an evaluation of the radar signal; wherein the at least two transmitting and receiving units are permanently connected to the antenna array via a distributor, wherein the distributor is a Wilkinson high frequency distributor, and wherein the delay lines are configured so that a radar signal emitted by the antenna array is directed, a main beam direction depending on a frequency of the radar signal.