PI Attenuator Calculator
Enter values for R1 and R2 to calculate attenuator loss and impedance.Alternatively, Generate R1 and R2 for a wanted attenuation.
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R1 Ω Zo Ω |
R2 Ω |
Attenuation Return Loss |
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Attenuation dB |
Notes:
*Strictly, a loss quantity when expressed in dB should be positive. However, convention and some literature quote return loss as a negative value akin to an S(1,1) measurement on a Network analyser.
*Attenuation result is in the specified system Zo