Cascaded Noise Figure Calculator
Calculate the input referred noise figure for cascaded stages.Enter the Noise Figure and gain for each stage.
Unused stages should be zeroed.
| Stage |
NF (dB) |
Gain (dB) |
Cascaded NF Cascaded Gain |
*Note. Calculator uses the Friis equation for N Stages.
F = F1 + ((F2-1)/G1)+((F3-1)/G1*G2)+...+ ((FN-1)/G1*G2...*GN)
*Note. The Friis equation requires linear parameters (Noise Factor and gain); the calculator makes the necessary conversions from the dB inputs.