螺旋线慢波结构高频特性的简化模拟方法  

Improved simulation method for high frequency characteristic of helix slow wave structure

作　　者：唐康淞[1] 赵刚[1] 吴文状[1] 李实[1] 阴和俊[1] 

机构地区：[1]中国科学院电子学研究所

出　　处：《强激光与粒子束》2008年第1期113-117,共5页High Power Laser and Particle Beams

基　　金：大功率微波电真空器件技术国家重点实验室基金资助课题(51440020104ZK1301)

摘　　要：利用3D电磁仿真软件HFSS中的Master/Slaver边界条件,基于螺旋线慢波结构的角向周期性,提出了一种改进的高频特性仿真方法。将具有3根夹持杆的螺旋线慢波结构的仿真模型从1个螺距的长度缩小到了1/3个螺距。仿真结果表明:采用改进后的模型,计算所得的相关高频特性参数与改进前传统模型所得结果基本一致,但是运算时间减少了至少3/4,且频率越高,计算时间上面的优势越大。Based on the angular periodicity of the helix slow-wave structure, an improved simulation method for simulating the high frequency characteristic is proposed using the boundary condition of Master/Slave in the commercial software HFSS. The simulation model for helix slow wave structure with three rods is modified from one screw-pitch to one third. Compared with the simulation results of classical model, the computation time decreases at least 3/4 by the improved model while the results are identical. Morever, the advantage of the improved method will be more evident when the frequency is much higher.

关 键 词：高功率微波 行波管 螺旋线慢波结构 高频特性 HFSS软件 

分 类 号：TN124[电子电信—物理电子学]