VNF
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Posts: 8
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Hi,
It is shown in multiple places that noise figure of a passive circuit equals to the power loss.
My question is, theoretically (assuming no bandwidth issue), if the network is a simple capacitor divider, i.e. with voltage gain of 1/2, then the signal, along with the noise will scale by 1/2 altogether, therefore SNR_out should be the same as SNR_in, which leads to NF = 1.
so what am I missing here? thanks, VNF
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