Cascaded Noise Figure Calculator

Cascaded Noise Figure Calculator calculator can be used to calculate the overall noise figure of a multi-stage amplifier system.

Input Parameters

Stage 1

Calculation Results

Calculation Formula

Ftotal = 10 * log10(Σ(Fi / (1 - 10-Gi/10)))

Where:
Ftotal is the total cascaded noise figure
Fi is the noise figure of the i-th stage
Gi is the gain of the i-th stage in dB

Total Noise Figure (dB)

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Cascaded Noise Figure Calculator Calculator Usage Guide

Learn how to use the Cascaded Noise Figure Calculator calculator and its working principles

How to Use

  1. Add the number of stages in your amplifier system by clicking the "Add Stage" button.
  2. For each stage, enter the noise figure (in dB) and gain (in dB).
  3. Click the "Calculate" button to compute the total cascaded noise figure.
  4. The result will be displayed in dB.

Working Principle

The total noise figure of a cascaded system is calculated by summing the contributions of each stage. The formula used is:

Ftotal = 10 * log10(Σ(Fi / (1 - 10-Gi/10)))

Where:
Ftotal is the total cascaded noise figure
Fi is the noise figure of the i-th stage
Gi is the gain of the i-th stage in dB