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探索了一种行波管效率提高的优化设计方法.该方法在不降低电子效率的前提下,对慢波结构进行优化以获得互作用后电子注能量台阶状的分布,为研制高回收效率的收集极奠定基础.提出了用最大可回收效率表示的目标函数来衡量电子注的可回收能力.与单纯以电子效率为目标的慢波结构优化相比,以电子注可回收能力最大化为目标的慢波结构优化,不仅能在工作频带内提高总效率,而且行波管的非线性指标没有明显降低,小信号增益却有较大的提高.
An optimized design method of traveling wave tube efficiency is explored.This method does not reduce the electron efficiency and optimizes the structure of the slow wave to obtain the stepwise distribution of the electron injection energy after the interaction.For the purpose of developing a high recovery efficiency Collectors to lay the foundation.It is proposed that the target function expressed by the maximum recoverable efficiency is a measure of the recoverability of the electronic note.Compared with the optimization of the slow-wave structure based on the electronic efficiency alone, the goal is to maximize the recoverability of the electronic note The optimization of the slow-wave structure can not only improve the overall efficiency in the working frequency band, but also the non-linearity of the traveling-wave tube has not obviously reduced, but the small-signal gain has greatly improved.