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Reflection Attenuator Calculator

1 views Free
Reflection Attenuator Calculator
dB
Ω
Please enter valid values greater than 0.
RESULTS
R1 > Z0
Ω
R1 < Z0
Ω

Reflection Attenuator Diagram

R1 R1

Formulas

K = 10^(Attenuation / 20)
Ratio = (K + 1) / (K - 1)
R1 > Z0 = Z0 × Ratio
R1 < Z0 = Z0 / Ratio

Diagrams & Theory

A reflection attenuator uses resistor values based on attenuation and characteristic impedance.

This calculator gives two possible resistor values: one greater than Z0 and one lower than Z0.

Example

Input Example

Attenuation: 10 dB
Impedance: 50 Ω

Output

The calculator converts attenuation to voltage ratio and calculates both reflection attenuator resistor values.

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About this tool

Reflection Attenuator Calculator is a free online calculator tool. Use it to get instant, accurate results for your electronics calculations.