高效率E波段空间行波管的互作用研究

The Study of High Efficiency Off-Center Multi-Stage Depressed Collector

以高效率为优化目标,对E波段折叠行波管的注-波互作用进行设计。采用螺旋线行波管设计中成熟的双渐变技术,对E波段折叠波导行波管的互作用进行优化设计和改进,从设计结果可知:在中心频点75GHz处,输出功率为55.38W,电子效率为10.98%,比均匀周期方案的电子效率提高了约65%。此结果满足E波段空间行波管设计的要求,相关的实验测试正在进行中。

An optimal design of beam-wave interaction for E-band space traveling-wave tube is carried out to achieve high efficiency. By utilizing DVT, simulation result shows that: the novel FWTWT obtains 55.38 W output power and 10.98% electronic efficiency, which is 65% higher than normal FWTWT. This results well fit the requirement of E-band TWT design, and the experiment test will be carried out.