Power gain (in nepers)


In electronics, gain is a measure of the ability of a two-port circuit (often an amplifier) to increase the power or amplitude of a signal from the input to the output port by adding energy converted from some power supply to the signal. It is usually defined as the mean ratio of the signal amplitude or power at the output port to the amplitude or power at the input port. It is often expressed using the logarithmic decibel (dB) units (“dB gain”). A similar calculation can be done using a natural logarithm instead of a decimal logarithm, resulting in nepers instead of decibels

Related formulas


gainNpPower gain (Np) (dimensionless)
PoutOutput power (dimensionless)
PinInput power (dimensionless)