场分析法计算速调管输出回路特性参数的一种新方法

该文结合三维电磁场模拟计算软件ISFEL3D，以电磁场分量为研究对象，通过适当的假设和简单等效，提出了计算速调管输出回路特性参数的场分析法。经理论分析和举例计算表明，场分析法在速调管输出回路计算和设计中可提供间隙阻抗、耦合度、输出腔效率、谐振点及特性阻抗等特性参数。冷测结果与计算结果在趋势上吻合较好，初步验证了场分析法的可靠性。

Field Analysis Method-A New Method for Calculating the Characteristic Parameters of the Output Circuit in the Klystron

In this paper, the field analysis method for calculating the characteristic parameters of the output circuit in the klystron is presented. The electromagnetic component under proper assumptions and the simple equivalence is studied by three-dimension electromagnetic simulation software ISFEL3D. The theoretical analysis and the calculation show that the field analysis method can provide the calculation of characteristic parameters such as gap-impedance, coupling degree, efficiency of output cavity, resonance frequency, characteristic impedance and so on in the output circuit of the klystron. The coincidence between the cold test data and the calculation result to a certain extent preliminarily verified the reliability of the field analysis method.