C-X波段同轴磁控管互作用腔快速工程计算方法研究

Study on Rapid Engineering Calculation of C-X Band Coaxial Magnetron Interaction Cavity

本文旨在探索一种可快速实现C-X波段同轴磁控管技术指标的设计方法,即通过《磁控管设计手册》工程计算和计算机PIC粒子仿真设计两种方法复算某C波段250 kW同轴磁控管,对比分析两种计算方法的结构参数,总结基于手册工程计算得到的结构参数的优化调整方向,结合本征模求解精确计算外腔TE 011模频点等措施,以达到提高同轴磁控管设计效率的目的。基于本文研究的同轴磁控管设计方法,开展了X波段500 kW同轴磁控管的初始结构设计工作,通过有序的结构参数调整,在较短的时间周期内实现了输出功率、工作频点均满足设计要求的π模稳定工作的计算仿真方案,初步验证了本文研究的同轴磁控管互作用腔设计方法的可行性。

The research purpose is to explore a feasible design method that can quickly realize the technical indicators of C-band to X-band coaxial magnetrons.A C-band 250 kW coaxial magnetron is recalculated by engineering calculation method mentioned in the Design Manual of Magnetron and by PIC particle dynamics simulation method.The structural parameters of the two calculation methods are compared and analyzed,and the optimization tendency of the structural parameters based on the engineering calculation in the manual is summarized.By combining the intrinsic mode solution with precise calculation of the TE 011 mode frequency point of the external cavity,the design efficiency of coaxial magnetron is improved.Based on the design method of coaxial magnetron,initial structural design of an X-band 500 kW coaxial magnetron is carried out.Through orderly structural parameter adjustment,a calculation and simulation scheme forπmode stable operation with output power and operating frequency meeting the design requirements is achieved in shorter time.The feasibility of the design method of coaxial magnetron interaction cavity is preliminarily verified.