介绍了一种X波段高峰值功率速调管的研制方案，目前该管在X波段已经实现脉冲输出功率50 MW，效率57%，脉宽达到3.6 μs。通过COM法、圆波导行波窗、防晕环和陶瓷覆膜等关键技术的应用，解决了高效率、高峰值功率容量和高可靠性等难题。尤其是采用COM法优化电子注群聚，与采用二次谐波群聚法相比，在同样的高频管体长度下，可将互作用效率进一步提高10%左右。产品研制成功，将国内X波段速调管的功率水平由3 MW提升至50 MW，产品性能已达到国际先进水平。

This paper introduces a technical scheme of X-band high peak power klystron. At present, this klystron has achieved 50 MW pulse output power and 57% efficiency at X band. The pulse width is up to 3.6 μs. By using some key techniques, such as COM method, circle waveguide travelling-wave window, Anticorona ring and coating thin film on ceramic, some problems such as high efficiency, high peak power capacity and high reliability are solved. In particular, COM method can be used to optimize electron beam bunching. Compared with the second harmonic bunching method, the interaction efficiency can be further improved by about 10% under the same length of high frequency tube body. Because of the successfully developed klystron, the peak power level of domestic X-band klystron has been raised from 3 MW to 50 MW, and the performance of the klystron has reached the international leading level.