Phased arrays for ECM applications

Current ECM applications of phased array antennas are reviewed with reference to both receiver and transmitter systems. With reference to receive phase array configurations, three different receiver subsystems are discussed: an instantaneous DF multibeam subsystem, a monopulse DF array subsystem, and an interferometer subsystem. Transmit configurations discussed include a phased array with coherent amplifiers used to generate very high ERP. Consideration is also given to new polarization techniques and the use of bipolarized phased arrays.