This calculator computes the resistor values for a PI and T attenuator network for a given attenuation and characteristic impedance.
Equations for PI pad attenuator:
\( R_1 = Z_0 \left( \frac{10^{\frac{A}{20}} + 1}{10^{\frac{A}{20}} - 1} \right) \)
\( R_2 = \frac{Z_0^2 (10^{\frac{A}{10}} - 1)}{2 (Z_0 + R_1)} \)
Equations for T pad attenuator:
\( R_3 = Z_0 \left( \frac{10^{\frac{A}{20}} - 1}{10^{\frac{A}{20}} + 1} \right) \)
\( R_4 = \frac{Z_0^2 (10^{\frac{A}{10}} - 1)}{2 (Z_0 - R_3)} \)
