针对导弹精确制导系统及无人机侦察的应用需求,围绕机载扫描相控阵天线低成本、小体积的技术难题,开展了一系列宽角扫描相控阵技术的研究。基于可重构技术,利用有源器件加载,实现了具有较宽扫描范围的平面相控阵;利用表面波辅助,拓宽天线单元的波束宽度,完成了具有较低剖面、易加工、易集成的工程可实现的宽角扫描相控阵天线的设计;基于镜像理论,设计了易实现、可用于二维扫描的新型磁偶极子,实现了上半空间内较大范围的扫描。
In view of the application requirement of missile precision guidance system and UAV reconnaissance,a series of researches on the technology of wide-angle scanning phased array are carried out,based on the technical problems on low cost and low volume of airborne scanning phased array antenna. Using reconfigurable technology,the wide scanning range on planar phased array is realized by active device loading. Using surface-wave assistant method,the beam width of antenna element is broadened,and a design of wide-angle scanning phased array antenna with low profile,easy processing and easy integration is completed. Based on image theory,a new type of magnetic dipole,which is easy to realize and can be used in 2D scanning,is designed to realize a larger range scan on upper half space.