Q215
The RF amplifier A is having 3 dB NF & 5 dB of gain, amplifier B is having 3.5 dB NF & 15 dB. For overall noise figure of the cascaded system, the correct statement is:
A.
A as first stage & B as second stage offers minimum over all NF
B.
B as first stage & A as second stage minimum over all NF
AnswerC.
Both the combination will offer same overall NF
D.
Over all NF will be less than 3 dB
Answer: Option B
Solution
Answer: Option B
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