Progress in phased-array radar applications

During the last decade, a rapid progress of phased-array radar systems for military as well as for civilian applications can he observed. New huge programs - also in Europe - are technological drivers in this field. It´s the aim of this paper to give a short overview on challenging radar tasks to be performed with phased-array radar, main applications of ground-, ship-, air- and space-based system, key technologies, and approaches for future applications.