【作者】 翟杰； 闻映红； 崔孝海；

【Author】 Zhai Jie~1 Wen Yinghong~1 Cui Xiaohai~2 (1 EMC Research Section,Beijing Jiaotong University,Beijing 100044,China;2 Division of Electronics and Information Technology,National Institute of Metrology,Beijing 100013,China)

【机构】 北京交通大学电信学院电磁兼容研究室； 中国计量科学研究院信息与电子计量科学和测量技术研究所；

【摘要】 在射频微波功率测量校准过程中,目前使用最广泛的射频和微波功率量值传递方法是传递标准法,传递标准由高一级的功率标准定标,确定出其校准系数 K_c 之后,用于校准下一级被校功率座。本文介绍了0.01～18 GHz 宽带微波功率传递标准,对其等效源反射系数的测量方法做了详细分析并给出实验结果,对传递标准定标获得准确可靠的校准系数 K_c 之后,又对该传递标准的稳定性、连接重复性、校准准确度做了详细的实验研究和数据分析。该传递标准为校准功率座提供了简单而且准确的方法,且校准性能达到国外同类商品传递标准的先进技术水平。更多还原

【Abstract】 Transfer standard measurement is a widely useful method for transferring radio frequency and microwave power standards in the microwave power calibration.The transfer standard was characterized in the upper power standard and used to calibrate lower power sensor.Wideband microwave power transfer standard is described from 0.01 to 18 gigahertz.The method for measuring the Equivalent source mismatch is analyzed.The stability,repeatability,accuracy of the transfer standard where K_c is determined are dem- onstrated by experiment results.The simplest and most precise method for calibrating power sensor is a- chieved by using the transfer standard.The performance of the system appears to be similar to the perform- ance obtained by using the same kinds of overseas abroad commercial power sensor.更多还原