毫秒级宽脉冲速调管发射机研究

A Study on the Millisecond Long Pulse Klystron Transmitter

介绍了一种毫秒级宽脉冲速调管发射机的系统组成及关键技术。根据国内外技术发展的现状及靶场测量雷达的要求,确定了发射机的系统设计方案。分析了调制组件输出叠加方案的调制器及绝缘栅双极型晶体管串接方案调制器的优缺点。论述了BOUNCER补偿电路和多路电源分时补偿电路的原理,给出了仿真数据及测试结果,同时对两种发射机输出脉冲顶降补偿方案的优缺点进行了对比分析。最后对研制成功的毫秒级宽脉冲发射机进行了测试,测试结果表明:输出功率、波形、频谱均达到了设计指标的要求。

The system composition and key technology of a millisecond long pulse klystron transmitter are introduced in this paper. According to the development of domestic and foreign technology, as well as the requirement of missile range instrumentation radar, system design of the transmitter is determined. The advantages and disadvantages of the modulation assembly output superposition modulator and insulated gate bipolar translator series modulator are analyzed. The principles of BOUNCER compensation circuit and multi-power supply temporal compensation circuit are presented particularly. The simulation and test results are given, and the two pulse top drop compensation schemes are analyzed comparatively. The millisecond long pulse transmitter based on the optimal scheme is measured lastly. It is demonstrated that all the specifications such as output power, envelope and frequency spectrum can meet the requirements of design specifications.