rf

Design a Pi-topology resistive attenuator pad. Given a desired attenuation in dB and characteristic impedance (default 50 ohm), computes the three resistor values for a symmetrical Pi-pad network. The Pi attenuator uses two shunt resistors (R1, R3) and one series resistor (R2). Commonly used in RF signal chains to reduce signal level while maintaining impedance match. Compare with attenuator_tee for T-pad topology.

post/api/attenuator_pi

Request

  • Base URL: https://calc.engineer
  • URL: https://calc.engineer/api/attenuator_pi
  • Auth: none declared

Request body

attenuation_dbnumber required

Desired attenuation in decibels (positive value)

z0_ohmnumber

Characteristic impedance in ohms (default 50)

Response

Computed result for attenuator_pi

toolstring required
versionstring required
computed_atstring date-time required

Changes

No recorded changes to this operation across all 1 revision of this API.