Radar technology is one of the most exciting sensor technologies today, which has become more and more widespread in recent years. It was developed in the 40s of the last century, but only 50 years later it had its breakthrough for civilian use. Today radar sensors are used for motion detection as well as for distance measurement. By the advancement to MIMO radar systems they can determine today also from which space direction targets come and that without any mechanical movement. Through the application of Flex technology, this innovative technology can also be adapted to the respective application and thus enables the path to cognitive radar systems. In the lecture the possibilities of this adaptability are shown together with the respective application. In addition, the weaknesses of current technology approaches will be discussed and suggestions for improvement will be derived.