題組內容

3. The amplifier shown in Fig. 3 has \(R_{sig}= R_L=1 \text{ k}\Omega\), \(R_C=1 \text{ k}\Omega\), \(R_B=47 \text{ k}\Omega\), \(\beta=100\), \(C_\mu=0.8 \text{ pF}\), and the unity-gain frequency \(f_T=600 \text{ MHz}\).

(e) Find upper 3 dB frequency \(f_H\).