We wish to design the common-base stage of Fig. 11.93 for a -3-dB bandwidth of 10 GHz.
Assume IC = 1 mA, VA = ∞, RS = 50 Ω, Cπ= 20 fF, Cμ = 5 fF, and CCS = 20 fF. Determine the maximum allowable value of RC and hence the maximum achievable gain. (Note that the input and output poles may affect the bandwidth.)