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Post subject: fT calculations from S-parameters
postPosted: Wed Apr 27, 2005 9:33 pm
Joined: Tue Mar 15, 2005 11:43 pm
Hi All :
I have a doubt whether is it possible
to calculate or derive fT (cut-off frequency) of transistors, particularly
FET, from measured small signal S-parameters?
I understand that
fT derivations/ calculations is very much dependent on nonlinear characteristics
of the device. While Small signal parameters mostly treated as linear
Therefore, I am not sure whether there's a way to
derive/ calculate fT of transistors from measured small signal S-parameters?
Thank you in advanced for your advice. :-)
Unread postPosted: Thu Apr 28, 2005 12:35 am
I don't think that
it is possible to calculate fT from S-Parameters data. This parameter
is ususally specified in the data sheet of the device.