| 摘要: |
| 针对电磁脉冲与非均匀微带线的耦合问题，基于时域有限差分法和卷积完全匹配层
，研究了不同弯曲和不同斜切角非均匀微带线的电磁脉冲耦合特性，并对耦合机理进行了讨
论。仿真结果表明：由于结构的非均匀性，微带线不同端口的耦合系数相差较大；电磁脉冲
入射方向对耦合系数具有重要影响，不同方向耦合系数相差约60 dB；微带线拐角斜切
对降低
电磁耦合效果不明显。所得结论对提高微带电路和电子系统抗强电磁脉冲打击能力具有重要
意义。 |
| 关键词: 电磁脉冲 非均匀微带线 耦合效应 时域有限差分法 卷积完
全匹配层 |
| DOI： |
|
| 基金项目: |
|
| Characteristics analysis of electromagnetic pulse coupling onto nonuniform microstrip line |
| LI Chun-rong,YUAN Qi-lun,WANG Xin-zheng,LV Huai-wu |
| () |
| Abstract: |
| To analyse the coupling effects of electromagnetic pulse (EMP) onto no
nuniform microstrip line, timedomain finitedifference (FDTD) method and conv
ol
ution perfectly matched layer (CPML) are presented. The influence of the trace b
end and the out miter is taken into account, and then the coupling mechanism is
discussed. The results show that due to the nonuniform of microstrip line, the c
oupling coefficients of the ports are very different. The direction of incident
EMP takes great influence on the coupling coefficients, and the difference is ab
out 60 dB, and the out miter of microstrip line has little influence on coup
l
ing coefficients. The study is significant for improving the defense ability of
microstrip circuit and electronic system against EMP effects. |
| Key words: electromagnetic pulse nonuniform microstrip line coupling effects FDTD method convolution perfectly matched layer |
《电讯技术》编辑部 