calculated the noise factor of 2-most amp
时间：04-09
整理：3721RD
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in Federio Bruccoleri doctor degree?s paper
he assumes the MOST only have drain noise （channel noise）
then definitely the drain noise I2n/△f=4KT*r*gm=4KT*NEF*gm
in follow schematic， he calculated the noise factor equal to 1+NEFa+4NEF(AVF-1)/AVF2 at ΔNEF=NEFb-NEFa And gb+1/ZL>>0（gb+1/ZL=gb） 。
how to calculate it by hand?
Thank you in advance！
he assumes the MOST only have drain noise （channel noise）
then definitely the drain noise I2n/△f=4KT*r*gm=4KT*NEF*gm
in follow schematic， he calculated the noise factor equal to 1+NEFa+4NEF(AVF-1)/AVF2 at ΔNEF=NEFb-NEFa And gb+1/ZL>>0（gb+1/ZL=gb） 。
how to calculate it by hand?
Thank you in advance！
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