20世纪40年代以来,在雷达技术上最重要的发展之一就是积极电子引导天线(AESA,Active Elec-tronically Steered Array)即有源相控雷达天线产品的来临。拥有空前的可靠性、优良的探测和在雷达波扫描速度上一千倍的改进,这种技术将会改变空战和攻击行动的方向。相控天线的想法并不呈新出现的概念。自从60年代,早期被用来探测弹道导弹的预警雷达就被广泛地运用了这个技术。美国海军在70年代为了保护航母战斗群免遭苏联巡航导演的渗透袭击而发展出 Since the 1940s, one of the most important developments in radar technology has been the advent of Active Elec-tronically Steered Arrays (AESA), an active phased-array radar antenna. With unprecedented reliability, excellent detection and a thousandfold improvement in radar sweep speed, this technique will change the direction of air combat and attack operations. The idea of ​​phased-array antenna is not emerging concept. Widespread use of this technology has been made since the early 1960s when early warning radars were used to detect ballistic missiles. The U.S. Navy developed in the 1970s to protect its carrier battle groups from infiltration attacks by Soviet cruise directors