Using a Load Tuner to Improve the Accuracy of Noise Characterization

@article{Simpson1989UsingAL,
  title={Using a Load Tuner to Improve the Accuracy of Noise Characterization},
  author={Gary R. Simpson and William E. Pastori},
  journal={33rd ARFTG Conference Digest},
  year={1989},
  volume={15},
  pages={89-107}
}
In principle, the noise figure of any microwave device is independent of load impedance; however, because of error sensitivities, a load tuner is required to achieve best noise measurement accuracy. This is because a high ouput reflection coefficient of a device under test can greatly increase the measurement receiver noise figure. This paper also presents… CONTINUE READING