The solid-state power amplifier is an equipment which owns the maximum power consumption and largest heat density in the FY-2 meteorological satellite ground application system, the performance of which directly affects the quality of signal transceiving.To ensure its high stability and reliability in the engineering applications, the fault instances, which may occur in the actual operation, such as no RF power output, too much output VSWR and output power leakage, are elaborated.A nichetargeting effective solution is put forward.The frequency spectrograms for comparison are offered.The results from comparison show that the solution is completely reasonable and feasible.The good mentality and gist for the design of SSPAs are provided.%固态功率放大器是FY-2气象卫星地面应用系统中耗电量最多,发热密度最大的设备,其性能直接影响着信号发射、接收的质量.为确保其在工程应用中的高稳定可靠性,对实际运行中可能会出现的无射频功率输出、输出驻波过大、输出功率泄漏等故障情况给予论述,并对故障的排除过程进行了深入的分析,提出了有针对性的解决方案.给出了频谱对照图,结果表明解决方案完全合理可行,为SSPA总体设计提供了良好的思路反可行依据.
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