中文摘要：

瞬态电场防护及应用技术的研究离不开瞬态电场测试系统；文中基于有源电光调制法，研制了一种高功率瞬态电场传感器，通过建立该传感器的等效电路模型，并借助CST仿真建模，分别从频域和时域角度分析了传感器的接收特性，并得到了一致的结果；最后利用脉冲噪声模拟器和吉赫兹横电磁波小室对研制的传感器性能进行了测试；结果表明：接收天线为单极子天线，天线负载采用高阻时响应电压与被测电场场强成正比；研制的传感器带宽为10kHz-314MHz，可用于纳秒级高功率瞬态电场的时域测试。

英文摘要：

It＇s difficult to measure the high power transient electric field in the assessment of electromagnetic environmental effect and electromagnetic protection. A kind of sensor based on the active electro--optical modulation is developed for testing high power transient electric field. The load impendence influence of antenna termination on system bandwidth is investigated in frequency domain through establishing equivalent circuit model. The model of sensor structure established by CST is used for simulating and analyzing in time domain. The results in time domain are coincident with those in frequency domain. The sensor＇ s performances are tested by pulse noise generator and GTEM cell. The results prove that if the receiving antenna is monopole antenna, the responded voltage is directly proportional to the electric field strength while the load impedance is high. The bandwidth of the developed sensor is 10kHz-314MHz, which can be used to test the transi- ent electric field with nanosecond rise time in time domain.