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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。
Based on Curnow’s equivalent circuit, based on Kirchhoff’s voltage and current theorem, the method of calculating dispersion and total impedance of general Curnow equivalent circuit model is obtained. From the viewpoint of design, according to the calculation method of dispersion and total impedance, Structure as an example, the influence of the structural parameters of the cavity on the total impedance under the condition of ensuring the working frequency and phase velocity of the device within the entire working bandwidth is discussed. Based on this, the original structural parameters Then, a method that can be used to optimize the high frequency structure of the coupled cavity TWT is proposed.