摘要
介绍了一种用于空间自由电磁脉冲测量的探测器，该探测器为阻抗渐变型ＴＥＭ喇叭结构。重点介绍了探测器灵敏度的测量方法，测试结果表明，在８０ＭＨｚ～２．２ＧＨｚ范围内，探测器灵敏度的频响起伏小于２０％，相位随频率线性变化，标定误差小于１２％。
A detector was developed for measuring ultra-wideband (UWB) transient electromagnetic field in the free-space. It is a small TEM horn antenna with gradually changed impedance. The majorpart of this paper is to describe the method of calibrating the detector's sensitivity. Results show that in therange of 50MHz^2. 2GHz, the detector's sensitivity is with linear phase and a uniform magnitude within20%. The error of calibrating is less than 12%.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
1999年第6期742-746,共5页
High Power Laser and Particle Beams
基金
国家863激光技术领域基金
关键词
超宽带电磁脉冲
辐射场
测量灵敏度
标定
ultra-wideband
electromagnetic field
measurement
sensitivity
calibration
