The transistors in the circuit of Fig. have β0 = 100, VA = 100 V, and Cμ = 0.2 pF. At a bias current of 100 μA, fT = 200 MHz. (Note that the bias details are not shown.)
(a) Find Rin and the midband gain.
(b) Find an estimate of the upper 3-dB frequency fH. Which capacitor dominates? Which one is the second most significant?