该文介绍了某S波段星载SAR集中式固态发射机的系统设计，对星载应用中需要解决的高可靠性、环境适应性及结构小型化设计等系列关键技术进行分析和论述，通过了各阶段的相关试验验证。该固态发射机通过采用多路功率合成技术，实现输出峰值功率大于3 kW。由于其高效率、轻小型化、大功率等特点特别适用于小卫星平台。%The system design of a S-band solid-state transmitter in satellite-borne SAR is introduced. A series of critical technologies, such as high reliability, environmental adaptability, and structure miniaturization, which are necessary in satellite applications, are analyzed and discussed. The technologies are experimentally verified at different periods. Multichannel combined technology is used for the transmitter, and the output peak power is more than 3 kW. Because of the high efficiency, small size, lightweight, and high power, it is especially applicable in small satellite platforms.
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