Hello, I have a mixer shown in the link below.The way I calculate the noise coming out of the mixer is as following:
-174+NF-conversion loss=-174+0.5-6=-179.5dB/Hz so far I am correct?
also the
Mixer Noise Figure typically measures within +0.5 dB of conversion loss for IF frequencies greater than 5 MHz.
However I was told that we add another 3dB because we convert noise from RF twice.
If its true, Is there some visualisation I could use to see why we add another 3dB?
Thanks.
https://markimicrowave.com/products/microstrip/mixers/m1-0818ne-1/datasheet/
