Design and Optimization of Axis-Adjustable Multistage Depressed Collector for 0.22-THz Traveling Wave Tubes
Design and Optimization of Axis-Adjustable Multistage Depressed Collector for 0.22-THz Traveling Wave Tubes
复制标题
0.22-THz行波管轴可调多级凹陷集电极的设计与优化
DOI:
10.1109/ted.2021.3074108
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发表时间:
2021-06
影响因子:
3.1
通讯作者:
Zhang ZC
中科院分区:
文献类型:
--
作者:
Ou Y;Liu WX;Zhang ZQ;Yang LL;Zhao ZY;Wei YY;Yang ZQ;Zhang ZC
For the efficient optimization of a multistage depressed collector (MDC), an axis-adjustable MDC optimized using the genetic algorithm (GA) is presented in this article. The optimization processes are realized with a reasonable balance between the collector recovery efficiency and electron reflux rate by modifying the fitness function of GA. Through the proposed method, the best recovery efficiency 88.5% and 0.72% electron reflux rate of MDC are obtained, and a three-stage symmetric collector has been designed with the GA optimization and fabricated, for a 0.22-THz TWT. The experimental results are in well agreement with that of simulations, which indicates that the methods we propose would be beneficial to the design of high efficiency of TWT.
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DOI:
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