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Antenna Gain Calculator

The gain of an antenna (dbi) in a given direction is the amount of energy radiated in that direction compared to the energy an isotropic antenna would radiate in the same direction when driven with the same input power. Simply enter the efficiency, wave length, physical aperture area to calculate the gain or frequency of antennas.

Related Calculators


Gain of Antennas Calculation

Efficiency (η) =
Wave Length (λ) =
Physical Aperture Area (A) =


Antenna Gain (GdBi) =

 
   
  
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Formula
GdBi = 10 LOG10( η4πA / λ2)

Where,
    η = Efficiency
    λ = Wave Length
    A = Physical Aperture Area

This tool will help you dynamically to calculate the gain or frequency of antennas.