风云一号气象卫星星载天线隔离技术

为消除风云一号(FY-1)气象卫星星栽天线间的耦合，对天线间距离和极化形式对天线隔离度的影响进行了分析和试验，认为前者是影响星栽天线间隔离度的主要因素。据此，采取了利用卫星整流罩空间，选择天线极化方向、设置隔离器和滤波器抑制电磁干扰等综合措施来提高FY-1卫星天线间的隔离度。最终测试表明，所设计的天线系统布局合理，整星状态下天线电性能满足任务书要求。

Isolation Technology of On-board Antenna for FY-1 Meteorological Satellite

To eliminate the coupling of antenna on FY-1 meteorological satellite, the effect of antenna distance and polarization form to the isolation was analyzed and tested. It was believed that the former was the major effect. On this basis, the measures such as using of fairing space, selecting isolation direction and setting up isolator and filter to suppress electromagnetic interference were adopted to improve the isolation of FY-1 satellite. The final test results showed that the antenna layout designed was reasonable and the electric performance of integrated satellite had met the certain requirements.