Calculators » RF and Microwave » ACPR Calculator: Adjacent Channel Power Ratio

ACPR Calculator: Adjacent Channel Power Ratio

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This page provides information about the ACPR (Adjacent Channel Power Ratio) calculator.

ACPR is short for Adjacent Channel Power Ratio. It’s the ratio of the main channel output power to the power found in the adjacent channel.

Essentially, it helps you figure out how much signal power “leaks” from the main channel into the channels next to it.

Less leakage is always better! A well-designed filtering stage is crucial to minimizing this leakage from the main channel to the adjacent channels.

Inputs

Outputs

EXAMPLE:

  • INPUTS: Peak power = 10 dBm, Average power = 8 dBm, Input power = 0 dBm, IP3 = 18
  • OUTPUTS: ACPR = -54.75

ACPR Equation

ACPR is a really handy metric for both RF planning engineers and RF designers.

The following equation or formula is used in the ACPR calculator:

ACPR equation