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CN105004937B 使用窄带补偿的噪声指数测量方法 有权

使用窄带补偿的噪声指数测量方法
摘要：
一种确定待测试器件(DUT(100))的噪声指数(NF)响应的方法(400)，包括：确定所述噪声接收器在第一频率范围上的频率响应；测量所述DUT(100)在涵盖所述第一频率范围的第二频率范围上的增益；测量所述DUT(100)在所述第二频率范围上的输出噪声功率；基于所述噪声接收器的频率响应和所述DUT(100)在所述第一频率范围上的增益，确定所述DUT(100)的被估增益；以及基于被估增益和所述输出噪声功率，确定所述DUT(100)在所述第二频率范围上的NF响应。
摘要（英）：

A method of determining a noise figure (NF) response of a device under test (DUT) comprises determining a frequency response of a noise receiver over a first frequency range, measuring a gain of the DUT over a second frequency range encompassing the first frequency range, measuring output-noise power of the DUT over the second frequency range, determining an estimated gain of the DUT based on the frequency response of the noise receiver and the gain of the DUT over the first frequency range, and determining the NF response of the DUT over the second frequency range based on the estimated gain and the output-noise power.

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