Antenna Gain

Antenna gain is a measure of how much power is transmitted in the direction of peak radiation to that of an isotropic source. It's usually described in decibels (dB). G stands for the gain of the antenna, Pout is the power output in the main direction of the beam and Pin is the power input. The logarithm of the quotient of Pout and Pin is multiplied by 10 to convert it to decibels. This formula is relevant in the fields of telecommunications and signal processing.