基于时域有限差分法的亚纳秒有界波模拟器数值模拟及分析  

Numerical Analysis and Design for Subnanosecond EMP Simulator Based on Finite Difference-Time Domain Method

作　　者：孙凤杰[1] 罗学金[1] 李小伟[1] 周启明[1] 

机构地区：[1]中国工程物理研究院电子工程研究所,四川省绵阳市621900

出　　处：《电子工程师》2008年第7期34-37,共4页Electronic Engineer

摘　　要：对亚纳秒有界波电磁脉冲模拟器进行了理论分析、数值模拟及实验验证。亚纳秒有界波电磁脉冲模拟器的前沿可以达到亚纳秒,且稳定性较好。电场分布均匀,可以满足各种测试需求。在亚纳秒有界波电磁脉冲模拟器的研制中,采用FDTD(时域有限差分)法结合环路积分法对模拟器传输线场的传播和场分布进行了数值模拟,确定了模拟器的试验工作区域(1 m×1 m×1 m),且模拟器工作区域实际的场分布测量结果与数值模拟结果吻合的很好。Theoretical analysis, simulated numerically, and experiment for subnanosecond EMP simulator are carried out in this paper. Leading edge rise time of the subnanosecond EMP simulator can reach subnanoseconds. The stability is good. Distribution of the electric-field is uniform and can satisfy various test requirements. During the development of the subnanosecond EMP simulator , we have simulated numerically the transmission and spatial distribution of the electric-field by Finite Difference-Time Domain method and contour integral method. From the data the test zone of the EMP simulator is determined. The actual spatial distribution of the electric-field agrees well the numerical results.

关 键 词：亚纳秒 有界波模拟器 时域有限差分法 数值分析 

分 类 号：TN24[电子电信—物理电子学]