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微波部件内电子累积过程中电子振荡对传输特性的影响
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摘要
本文针对微放电过中的电子累积效应,为了模拟电子累积的过程电子的动态变化,更接近真实地模拟电子累积对传输特性的影响,提出在一定电子累积密度区域等效为均匀介质的基础之上加入电子振荡的影响,计算和仿真在振荡频率不断变化的条件下,微波部件的传输特性的变化。结果表明,在电子累积密度比较大、电子碰撞频率比较小的情况下,对传输特性的影响几乎是由电子累积密度决定,而在电子累积密度为1×10~(17)/m~3时,电子碰撞频率达到1×10~(10),传输特性开始得到改善;当碰撞频率达到1×10~(11)时,传输特性得到明显的改善。
This article explores the relationship between the accumulation of electrons in the process of multipactor and the transmission properties of microwave components. In order to imitate the dynamic change of electronic accumulation, we propose an dynamic model, which take into account the oscillation properties for the process of electrons accumulating. We calculate and simulate the effect of electronic collision frequency on transmission properties with steady electron density in microwave components. The results indicate that transmission properties have been less affected by electronic collision frequency with lower electronic collision frequency and higher electron density. However, electronic collision frequency has a big impact on transmission properties if the electron density is 1×10~(17)/m~3 and electronic collision frequency up to 1×10~(10). What's more, electronic collision frequency becomes the main influential factors at the frequency met 1×10~(10).
引文
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