摘要
以Curnow等效电路为依据,基于基尔霍夫电压和电流定理,获得了通用Curnow等效电路模型的色散、总阻抗的计算方法;从设计角度出发,根据色散和总阻抗计算方法,以实际结构为例,探讨了在保证整个工作带宽内,器件的工作频率和相速基本不变的情况下,腔体结构参数变化对总阻抗的影响,并以此为依据,对原有结构参数进行了优化,从而提出了一种可用于耦合腔行波管高频结构优化的方法。
The high frequency structure of the coupled-cavity traveling wave tubes was modeled, calculated, opti- mized and redesigned. In the optimization, the formula, involving the dispersion and total impedance, were firstly derived with Kirchhoff＇s laws of current and voltage on the basis of Curuow equivalent-circuit model; next, the impacts of the dif- ferent structures on the total impedance of the TWT was evaluated, based on the formula of the dispersion and the total impedance,trader the conditions of a fixed working frequency and a phase speed in the full band range; and finally,the conventional structure was optimized and redesigned. The possible application of the newly-developed optimization tech- nique to the design of other coupled-cavity TWTs was also tentatively discussed.
出处
《真空科学与技术学报》
EI
CAS
CSCD
北大核心
2012年第7期616-621,共6页
Chinese Journal of Vacuum Science and Technology
基金
国家自然科学基金资助课题(60801029
10876005
60931001
61071030)
