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Variable Termination Unit for Noise-Parameter Measurement
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DOI：10.1109/TIM.2008.2007055.png)
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摘要
En 中文
The National Institute of Standards and Technology (NIST) has upgraded its capability to measure noise parameters on low-noise amplifiers with a variable termination unit (VTU) in the frequency range of 1-12.4 GHz. Such a unit allows improved time efficiency and accuracy in the noise-temperature measurements used to de-embed the noise parameters of amplifiers. We present the design and characterization of the VTU. The measured results of one particular amplifier at integer frequencies ranging from 8 to 1.2 GHz show satisfactory accuracy. The VTU method is also validated by comparison with the results from the manual method.
Keyword:
Amplifier noise parameters
noise measurement
source pull technique
uncertainty analysis
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5.9
论文数:
2.0W
被引数:
5.8W
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