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Balanced Attenuator Calculator and Formula

attenuator balanced attenuator rf resistance impedance

This page provides a balanced attenuator calculator and explains the formula used. The calculator takes impedance and attenuation as inputs and provides the resistance values as outputs, based on the circuit diagram shown below.

Balanced Attenuator

Figure 1: Balanced Attenuator Circuit

Balanced Attenuator Calculator

Inputs

Outputs

This calculator determines the resistor values needed for a balanced attenuator circuit.

EXAMPLE:

  • INPUTS: Impedance = 50 Ohm, Attenuation = 6 dB
  • OUTPUT: R1 = 50.238 Ohm

Balanced Attenuator Formula

The following equation is used to calculate the resistor values for the balanced attenuator:

Balanced Attenuator Formula