Some examples of systems developments in Italy based on phased array technology

An overview is given of some typical radar, ESM and communication systems, based on phased array technology, developed in Italy. A family of S-band, surveillance, 3-dimensional radar systems for air defence applications is presented. The antenna arrays are fed by multiple elevation beam forming and scanning networks. A new active, L-band phased array radar under development will complete the line of the 3D systems. An ECM active phased array antenna is described, as part of a system capable of countering a very large number of simultaneous threats. New developments include a UHF phased array, for zenith coverage of an air defence system, and a quasi-planar array for an air traffic control radar, with adaptive combination of multiple beams in reception for best clutter cancellation. A C-band, full phased-array antenna, with all extremely wide scanning angular sector, adaptive nulling and two-plane, low side lobe, monopulse capability, has been developed for a multifunctional radar for naval application, but with possible utilization, also in fixed and mobile ground systems. Study and design activities are mentioned on an active, X-band phased array for spaceborne SAR applications, where use is made of a single package, multichip hybrid module, as the basic building block