摘要
本文主要研究了高功率微波相位测量中被测信号功率对相位测量的影响。提出了一种大功率微波器件相位延迟特性测量方法,实现了从mW至kW级不同脉冲激励功率状态下相位延迟特性的准确测量。测量系统主要由大功率微波脉冲源、定向耦合器组、衰减器以及微波脉冲鉴相器等器件及设备组成。对广泛应用于高功率微波相位测量系统中的衰减器相位特性进行了测量。测量结果表明,在1kW功率范围内,该典型器件的相位延迟变化量在±2°以内,可认为其相位延迟特性不随激励功率的变化而变化。
This paper studies the influence of signal power on the phase measurement in high power microwave. Presents phase delay characteristic measurement of the phase delay characteristics under dif-ferent excitation power states from mW to kW power level. Measuring system consists of high-power-mi-crowave pulse source, directional couplers groups. Attenuators which are widely used in high-power-mi-crowave phase measurement system were measured. Measurement results show that in 1kW power range, phase delay of those typical devices varies within ＆#177;2o, the phase delay characteristics can be considered with no changes for the different excitation power.
出处
《宇航计测技术》
CSCD
2014年第1期7-10,共4页
Journal of Astronautic Metrology and Measurement
关键词
高功率微波
相位测量
kW级功率
脉冲信号
High-power-microwave
Phase measurement
kW power level
Pulsed single
