The S parameters and the noise parameters of a transistor at 1 GHz are the sources and load impedance is 50 S2, and Vs = 10/30 V $120.05/16 S11=0.6/-170 Fmin = 2.5 dB, I'opt = 0.52145, R = 59 a) Is the transistor unconditionally stable? b) Determine GA,max S21 = 2/30 S22=0.5/145 c) Draw the 3-dB constant noise figure circle d) Determine the noise figure if this transistor is used to design an amplifier for GA,max