9.38 For a version of the CE amplifier circuit in Fig. P9.11,
Rsig = 10 kΩ, R1 = 68 kΩ, R2 = 27 kΩ, RE = 2.2 kΩ, RC = 4.7
kΩ, and RL = 10 kΩ. The collector current is 0.8 mA, β = 200,
fT = 1 GHz, and Cμ = 0.8 pF. Neglecting the effect of rx and ro,
find the midband voltage gain and the upper 3-dB frequency
fH.