C波段高密度集成瓦片式数字相控阵天线

C-Band Digital Phased Array Antenna with High-Density Integration Tile

随着相控阵技术的快速发展,数字相控阵系统对小型化、集成化、宽带化有了更高的要求。本文提出了一种收发全数字波束形成的新一代相控阵方案,研制了一套16通道的高集成度数字相控阵系统样机并完成了法向方向图测试。该方案采用高集成度射频前端,片内集成收发通道和频率合成器,相比传统分立器件方案更加紧凑。阵列整体采用瓦片集成方式,通过高密度垂直互联将天线阵面、校准网络、收发信道、波束形成器进行纵向集成,具备集成密度大、剖面低、通用性强、宽带特性好、易于扩展等诸多优点,具有良好的实用价值。

With the rapid development of phased array technology,the digital phased array system puts forward higher requirements for miniaturization,integration and broadband.This paper proposes a new generation of phased array scheme based on transmission and receiving DBF(digital beam forming).A 16-channel highly-integrated digital phased array system prototype is built and the normal direction pattern measurement is completed.The scheme is more compact than traditional discrete solutions due to the applications of highly integrated RF front-end,on-chip integrated transceiver channel and frequency synthesizer.The scheme adopts the tile integration method and integrates antenna array,calibration network,transceiver channel,and beamformer through high-density vertical interconnection.It has certain practical value and many advantages,including high integration density,low profile,strong versatility,good broadband characteristics,easy to expand and etc.