【摘要】 空间行波管用于实现微波信号的放大,因此需要具有较高的转换效率、可靠性等指标。本文利用模拟软件对双阳极电子枪、双渐变螺线慢波结构、四级降压收集极等结构进行设计,实现了大容量通信卫星对Ku波段行波管提出的大功率、高效率、辐射散热等需求。在此基础上研制的Ku波段辐冷空间行波管实现了1 GHz带宽内功率≥202 W,效率≥67.4%,达到了主要技术指标要求。更多还原

【Abstract】 Space traveling wave tubes(TWTs) are used to amplify microwave signals, which are required of high conversion efficiency and high reliability. Software is used to simulate the structures of dual-anode electronic gun, double taper helix and 4-stage depressed collector. The results show that theoretical design can meet the requirement of high power, high efficiency and radiation-cooled from high-capacity communications satellites. Based on the design, Ku-band space TWTs are developed. The TWTs have power more than 202 W and efficiency greater than 67.4% in 1 GHz bandwidth, which meets the technical requirements.更多还原