Bipolar High-frequency Analysis: A bipolar CE amplifier has Rth = 1 kohm, rb' = 100 ohms, Cc' = 4 pF, fT = 300 MHz, b = 100, re' = 2.5 ohms, rc = 1 kohm, and Cstray = 50 pF. What is the base cutoff frequency? The collector cutoff frequency?

Answer: The base cutoff frequency fb is 430 kHz and the collector cutoff frequency fc is 2.95 MHz.

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