小背射天线阵的设计

介绍一种 S频段四元小背射天线阵 ,它由四个小背射天线和单通道单脉冲馈源组成 ,用于遥测自跟踪。该天线阵在原设计四元背射天线阵的基础上 ,将工作带宽扩展为 2 0 0 MHz,并在结构上作了重大改进。馈源盒为一方形腔体 ,既用于安装四个天线 ,又用于放置馈电网络 ,结构十分紧凑 ,便于密封、维修。

Design of Small Back-fire Antenna Array

This paper describes a type of S band four element small back fire antenna array.It is consisted of four small back fire antennas and single channel monopulse(SCM) feed. It is used for telemetry and auto tracking.Compared with old one designed, its operating bandwidth is expanded to 200MHz and the structure improved greatly.The feed box is a quadrate cavity used to installing antennas and also used to integrating feed networks which makes the structure tight and lightweight.It is easy to seal and maintain.