相控阵雷达与光控相控阵雷达

对在国际军备竞争中占据了重要地位的雷达作了全面的概述。针对传统机械扫描雷达扫描速度缓慢、精度低、可靠性不高等缺点引出了当今研究热点相控阵雷达，阐述了其工作原理及优缺点，并指出随着现代国际形势的发展传统相控阵雷达所暴露出的无法适应宽带宽需求的缺陷。在此情况下光控相控阵雷达应运而生，描述了光控相控阵雷达中的关键技术-光学真延时技术的原理，归纳了光学真延时技术的各种实现方案，并简述了国际上光控相控阵雷达的发展历程。

Phased Array Antenna and Optical-Controlled Phased Array Antenna

The development of radar which plays an important part of the world armament competition is completely summarized. To solve the disadvantages brought by traditional mechanism scanning radars such as low precision, scanning speed and security, people invented phased array antenna which has been the hotspot of nowadays; so the basic principle of it is introduced and the narrow band width limitation of phased array antenna will prevent it to adapt the higher military affairs demand. In this condition, opticalcontrolled phased array antenna emerges as the times require. Analyzes the principle and approaches of optical-controlled phased array antenna, and the development of it is also introduced.