宽频带高平坦度传导电磁敏感性注入探头研究  

Research on broadband and high flatness conductive electromagnetic susceptibility injection probe

作　　者：付长顺 阎照文[1] 苏东林[1] FU Changshun;YAN Zhaowen;SU Donglin(School of Electronic and Information Engineering,Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学电子信息工程学院,北京100191

出　　处：《北京航空航天大学学报》2023年第11期3000-3009,共10页Journal of Beijing University of Aeronautics and Astronautics

基　　金：国家自然科学基金(61427803)。

摘　　要：集成电路和电子设备的小体积、高密度和高时钟频率的发展趋势,导致严重的电磁兼容问题,特别是电磁敏感性问题。集成电路和电子设备的电磁敏感性水平对其优化设计至关重要,而宽带脉冲注入探头广泛用于集成电路和电子设备的传导电磁敏感性测试。根据集成电路和电子设备的传导电磁敏感性测试需求,通过分析宽带脉冲注入探头的工作原理、影响工作带宽及平坦度的因素,进行宽频带高平坦度的宽带脉冲注入探头的方案设计,通过多线并绕、磁芯与外壳匹配设计、高频段阻抗匹配等方法,研制出宽频带高平坦度的宽带脉冲注入探头。测试结果和实际应用结果表明:所研制的宽带脉冲注入探头实现了工作频率覆盖9 kHz~1 GHz、平坦度小于5 dB的性能指标,可以满足开展传导电磁敏感性测试的需求。The development trend of small volume,high density,and high clock frequency of integrated circuits and electronic equipment leads to serious electromagnetic compatibility problems,especially electromagnetic susceptibility problems.The electromagnetic susceptibility level of integrated circuits and electronic equipment is very important for their optimal design,and broadband pulse injection probes are widely used in the conducted electromagnetic susceptibility test of integrated circuits and electronic equipment.The project design of broadband pulse injection probes with broadband and high flatness is put into effect by examining the operating principle of broadband pulse injection probes and the variables affecting working bandwidth and flatness on the basis of he conducted electromagnetic susceptibility test requirements of integrated circuits and electronic equipment.A broadband pulse injection probe with a broad frequency band and high flatness is produced using the techniques of multi-wire parallel winding,matching design of magnetic core and shell,and impedance matching in high-frequency band.The test results and practical application results show that the designed broadband pulse injection probe achieves the performance index of working frequency covering 9 kHz-1 GHz and flatness less than 5 dB,and can also meet the needs of conducting electromagnetic susceptibility tests.

关 键 词：传导电磁敏感性 宽带脉冲注入探头 宽频带 平坦度 多线并绕 阻抗匹配 

分 类 号：TN712.1[电子电信—电路与系统]