强激光与粒子束, 2014, 26 (4): 043002, 网络出版: 2014-04-24
非线性传输线产生射频脉冲原理研究
Research on nonlinear transmission line generating radio-frequency pulses
非线性传输线 模拟算法 J-A模型 高电压射频脉冲 磁饱和 nonlinear transmission line simulation method J-A model high-voltage radio-frequency pulse magnetic saturation
摘要
介绍了非线性传输线的工作原理和色散特性，给出了用于模拟交叉耦合磁饱和非线性传输线的计算方法。算法基于传输线各节点的时域差分方程组进行步进迭代，其中利用J-A模型描述传输线中NiZn铁氧体磁芯的非线性磁化行为，并模拟了非线性传输线的工作方式。实验获得了中心频率165 MHz的宽带脉冲输出，初步验证了用于产生宽带电磁脉冲的非线性传输线关键技术。
Abstract
The working principle and dispersion characteristics of nonlinear transmission line (NLTL) are discussed, and a simulation method is proposed for analyzing across coupled and magnetic saturation NLTL. This method is based on time-step iteration of finite difference equations of each circuit nodes, and the J-A model is employed to describe the magnetizing behavior of NiZn ferrite beads in this method. We simulated an NLTL operation mode, and a center frequency of wideband pulse of 165 MHz was obtained in the experiment, preliminarily verifying the feasibility of producing wideband pulse with NLTL.
谢平, 徐刚, 廖勇, 石小燕, 杨周炳. 非线性传输线产生射频脉冲原理研究[J]. 强激光与粒子束, 2014, 26(4): 043002. Xie Ping, Xu Gang, Liao Yong, Shi Xiaoyan, Yang Zhoubing. Research on nonlinear transmission line generating radio-frequency pulses[J]. High Power Laser and Particle Beams, 2014, 26(4): 043002.
PDF全文
