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+clc
+//Chapter 12:Frequency mixers
+//example 12.2 page no 504
+//given
+gm=14*10^-3//tranconductance
+IDSS=40*10^-3
+RL=50//load resistance
+Vgs=0
+Vp=2*IDSS/gm//pinch off voltage
+gc=IDSS/(2*Vp)//conversion tranconductance
+Av=gc*RL//voltage gain
+mprintf('the conversion voltage gain is %f ',Av)