77 GHz automotive radar sensors: Antenna concept for angular measurements in azimuth and elevation. - Klaus Baur; Marcel Mayer; Steffen Lutz; Thomas Walter (RWS, 2013)

A Portable 3-D Imaging FMCW MIMO Radar Demonstrator With a $24 times 24$ Antenna Array for Medium-Range Applications. - Alexander Rudolf Ganis; Enric Miralles Navarro; Bernhard Schoenlinner; Ulrich Prechtel; Askold Meusling; Christoph Heller; Thomas Spreng; Jan Mietzner; Christian Krimmer; Babette Haeberle; Steffen Lutz; Mirko Loghi; et al. (IEEE Trans. Geosci. Remote. Sens., 2018)