It has large ratio of deploying / stowed volume . it may be used as sar antenna for small satellite or as other communication antenna of s or l band . the structural system configuration and key components design are described 它具有展缩比大,重量轻和频段宽等特点,可用于小卫星合成孔径雷达天线和其它s 、 l频段星载通讯天线。