題組內容

3.(30%) For the common-base circuit in Fig. 2, assuming the bias current to be about 1 mA, β = 100, Cμ = 0.8 pF, re = 25Ω, and fT = 500 MHz:
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(c) Find the high-frequency poles, and estimate the upper 3-dB frequency, fH. (10%*3)