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首页> 外文期刊>International journal of metrology and quality engineering >Effective source mismatch uncertainty evaluation using resistive power splitter up to 18 GHz
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Effective source mismatch uncertainty evaluation using resistive power splitter up to 18 GHz

机译：使用高达18 GHz的电阻功率分配器进行有效的源失配不确定性评估

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CSIR-National Physical Laboratory (NPL) India is a National Metrology Institute (NMI), which disseminate traceability of the physical parameters in the country. In the field of microwave, it is one of the apex laboratories to provide traceability. In this paper, the method for precession measurement of effective source reflection coefficient using resistive power splitter and mismatch uncertainty evaluation are reported and discussed. Juroshek method is implemented in conjunction with Vector Network Analyzer (VNA) for mismatch uncertainty evaluation by measuring source reflection coefficient from measured S parameters. The measurement results and their associated uncertainty are presented and discussed from 1 MHz to 18 GHz of the resistive power splitter. The complex reflection coefficient of the effective source is determined using indigenously developed automation software. The method adopted is the most convenient way of measuring effective source reflection coefficient whose values are smaller than the manufacturer specs. The mismatch uncertainty has been improved, which is beneficial during the calibration of power sensors along with power meters.
机译：印度CSIR国家物理实验室（NPL）是国家计量研究所（NMI），在该国传播物理参数的可追溯性。在微波领域，它是提供可追溯性的顶尖实验室之一。本文报道并讨论了利用电阻功率分配器进行有效源反射系数进动测量的方法以及失配不确定性评估的方法。 Juroshek方法与矢量网络分析仪（VNA）结合使用，可通过从测量的S参数中测量光源反射系数来进行失配不确定性评估。给出并讨论了电阻功率分配器在1 MHz至18 GHz范围内的测量结果及其相关的不确定性。有效光源的复杂反射系数是使用本地开发的自动化软件确定的。所采用的方法是测量有效光源反射系数（其值小于制造商规格）的最便捷方法。失配不确定性得到了改善，这在功率传感器和功率计的校准过程中是有益的。

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