M

Mr. Dubey • 52.30K Points
Coach 

Q. High gain is not achievable at microwave frequencies using BJT amplifiers because:

(A) device construction
(B) complex architecture
(C) ports are not matched at high frequencies
(D) none of the mentioned
Correct : Option (C)

Explanation: 
 at higher frequencies, if higher bandwidth is desired, a compromise on maximum achievable gain is made. but at these higher frequencies, the ports of the amplifier are not matched to 50 Ω.

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