【摘要】 首先从腔体的等效集总参数电路出发,推导出了腔体等效输入阻抗和腔体特性参数,如谐振频率、并联阻抗及耦合电容的关系．以此为出发点,得到了理想耦合所需要的耦合电容大小和腔体参数的关系,总结出了高频腔体电容耦合系统设计的一般方法．以一台质子回旋加速器模型腔体为例,对计算结果和测量结果进行对比分析,讨论了其结果的可靠性及使用范围．更多还原

【Abstract】 The relation between the input impedance and the characteristic parameters of a cavity, such as the resonance frequency, shunt impedance and the quality factor, has been obtained based on the equivalent circuit of the cavity and the coupling system. Using the matching condition, the ratio of coupling capacitance to the equivalent capacitance of the cavity can be acquired as a function of the characteristic parameters of the cavity, the value of the coupling capacitance can be obtained with a help of a numerical simulation and the perturbation theory, and then the perfect matching between the cavity and the transmission line can be procured. The application of these results on a model cavity is presented too.更多还原