Reflection Attenuator Calculator | Resistor Values

The Reflection Attenuator Calculator quantifies how much signal power is reduced due to reflections, typically from mismatched impedances. Reflections can cause standing waves, reduced efficiency and signal distortion.

EXAMPLE:

• INPUTS:

  • Attenuation in dB (input1) : 6
  • System Impedance in Ohms (input2) : 50

• OUTPUT:

  • Resistorr R1 when (R1 > Z0) (output1) : 150.48 Ohms
  • Resistor R1 when (R1 < Z0) (output2) : 16.61 Ohms

Formula

Benefits/Applications

• Improves system reliability: Predicts and minimizes reflected signal power.
• Aids design of matching networks: Useful for transmission lines and RF components.
• Optimizes power transfer: Ensures maximum forward power with minimal reflection.

Summary:

This tool estimates attenuation from signal reflections, a key step in designing efficient RF and microwave systems with minimal reflective losses.