PI attenuator calculator enables you to find the values of the resistors R1 and R2 from the known values of attenuation in dB and impedance in Ω.
Enter the attenuation in dB and impedance in ohms and press calculate button to find values of resistors R1 and R2 in the PI attenuator.
Circuit Diagram
The calculator above is applicable for PI attenuators having circuit diagram shown below:
Practical Application Notes
In the field of Electrical and Electronics Engineering, the PI attenuator is a commonly used passive attenuator in many RF applications. Its simple construction provides it an edge over the other network topologies. Compared to other balanced and bridged tee attenuators it can be easily constructed, designed, or etched even over thin films.
Functions of RF Attenuators:
- They are responsible for weakening or attenuation of the source signal to an appropriate level that is suitable and appropriate for the receiver
- They match the source and destination impedance thereby ensuring maximum power transfer
- They can be practically implemented on circuit boards very easily by etching