宇航计测技术

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激励功率对高功率微波相位测量通道相位特性影响实验研究

王益1；张翠翠1；王建忠1   

  1. 1、中国工程物理研究院计量测试中心, 绵阳 621900
  • 出版日期:2014-02-15 发布日期:2014-02-15

Experimental Research on Phase Characteristics of High-power-microwave Phase Measurement Channel with Different Excitation Power

WANG Yi1；ZHANG Cui-cui1；WANG Jian-zhong1   

  1. 1、Metrology and testing center, CAEP, Mianyang 621900
  • Online:2014-02-15 Published:2014-02-15

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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。

关键词: 高功率微波, 相位测量, kW级功率, 脉冲信号

Abstract: 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 different excitation power states from mW to kW power level. Measuring system consists of high-power-microwave pulse source, directional couplers groups. Attenuators which are widely used in high-power-microwave phase measurement system were measured. Measurement results show that in 1kW power range, phase delay of those typical devices varies within ±2°, the phase delay characteristics can be considered with no changes for the different excitation power.

Key words: High-power-microwave, Phase measurement, kW power level, Pulsed single

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