Cascaded Gain and Noise Figure Calculator

This page provides tools for calculating cascaded gain and cascaded noise figure. We offer both a cascaded gain calculator and a cascaded noise figure calculator.

The cascaded gain calculator determines the overall gain of a 3-stage amplifier system.

The cascaded noise figure calculator computes the aggregate noise figure for a 3-stage amplifier system.

Example: Cascaded Gain and Noise Figure Calculation

Let’s illustrate with an example using the calculators.

INPUTS (Linear values):

• G1 = 10
• F1 = 1.4
• G2 = 10
• F2 = 2
• G3 = 25
• F3 = 3.6

OUTPUTS:

• Cascaded Gain = 33.97 dB
• Cascaded Noise Figure = 1.83 dB

Equations and Formulas

The following equations are used in the cascaded gain and cascaded noise figure calculators:

These formulas are essential for determining the overall performance of multi-stage amplifier systems. Understanding how gain and noise figure cascade is crucial in RF and microwave design.