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THE FEUTEX TOOLKIT

Complex Load Reflection and Mismatch

Evaluate reflected-power fraction and mismatch loss for a complex load on a real line.

Communications workspace● Runs in your browser
01 Your input
02 Your result
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FormulaΓ=(ZL−Z0)/(ZL+Z0); mismatch=−10log10(1−|Γ|²)
Sources and model references

Worked example

Inputs

Load resistance
100 ohm
Load reactance
0 ohm
Line impedance
50 ohm

Expected results

Reflection magnitude
0.3333333333 ratio
Reflected power fraction
0.1111111111 fraction
Mismatch loss
0.5115252245 dB

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter the labeled inputs in the indicated units.
  2. Calculate and compare every output against the stated model assumptions.

Try this example

{
  "r": 100,
  "x": 0,
  "z": 50
}

Accuracy and scope

Real positive line impedance and passive positive-resistance load; line attenuation excluded. Simplified analytical model; not a design recommendation or safety certification.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.