Your RF Cafe
Airplanes and Rockets:
RF Cafe SoftwareCalculator Workbook
Smith Chart™ for Visio
Smith Chart™ for Excel
RF & EE Symbols Word
RF Stencils for Visio
Enter values for Rin, Rout, and Attenuation, then click Calculate. If unequal termination resistances are used and an attenuation value is selected that is lower than what is physically possible (a negative resistor value is displayed), then a message will appear in the box over the schematics. "k" is the linear ratio equivalent to the decibel value of the attenuator.
Equations used in this calculator can be found on the Pi and Tee Attenuators Equations page.
Calculated values do not change until the "Calculate" button is clicked.