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
作者单位
中国工程物理研究院 应用电子学研究所, 高功率微波技术重点实验室, 四川 绵阳 621900
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.
参考文献

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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.

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