As a result of modern advanced driver assistance systems, the use of radar technology has become indispensable for the automotive sector. A wide range of systems for adaptive speed control, lane-change support, collision avoidance, and pedestrian and cyclist detection has paved the way for autonomous driving. With the installation of a large and growing number of sensors together with the limited availability of suitably exposed space for them on the vehicle body, there is almost no space left for the installation of sensors.