Common-source cold-FET used to validate noise figure measurements and on-wafer FET noise parameters
This work proposes the use of a common-source cold-FET with gate forward biased to validate the noise figure measurements and the noise parameters of on-wafer transistors. Since a common-source cold-FET behaves as an attenuator, its noise figure and noise parameters can be determined from S-parameters measurements. Three methods for determining the noise parameters of the common-source cold-FET are investigated. The first one uses the noise correlation matrix for passive devices (the S-parameters), the second one is the tuner method and the third one is the F50 method. The noise figure measured and the noise figure computed from S-parameters agree quite well. The noise parameters extracted with the tuner method and the F50 method show good correlation with the noise parameters computed with the S-parameters. These results validate both the noise figure measurements and the noise parameters extraction.
Main Authors: | , , |
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Format: | Digital revista |
Language: | English |
Published: |
Sociedad Mexicana de Física
2013
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Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0035-001X2013000600015 |
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