中文摘要：

合肥光源升级改造（HLSⅡ）将使用数字逐束团横向束流反馈系统来抑制束团耦合不稳定性。本文设计了条带型横向激励器,利用Poisson程序计算了横向激励器的特性阻抗和电场,采用回归方程及最小二乘法分析了特性阻抗随横截面结构参数的变化规律,并做了优化选择以匹配50Ω的外部传输电缆。利用HFSS程序对横向激励器的分路阻抗及功率输入端口的反射系数进行了模拟计算。仿真和计算结果为横向激励器的设计提供了依据。

英文摘要：

A new digital bunch-by-bunch transverse feedback system will be used in the upgrade project of Hefei Light Source（HLS Ⅱ） to suppress the coupled bunch instabilities in the storage ring.Therefore,a new stripline transverse feedback kicker was designed in this paper.The calculations of the characteristic impedance and the electric field of the kicker were carried out by the Poisson code.The variation of characteristic impedance versus the cross-sectional structure parameters was analyzed by using the regression equation and the least squares method,and the 50 Ω external transmission line was matched through the optimal choice.The shunt impedance and the reflection coefficient were obtained by the HFSS code.Simulation and calculation results provide important supports for the structure design.