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Antenna G/T Ratio Calculator

antenna
gain
noise temperature
g/t ratio
system sensitivity

This page provides information about the Antenna G/T ratio calculator.

What is Antenna G/T Ratio?

The antenna Gain to Noise temperature ratio, often referred to as the G/T ratio, serves as a figure of merit for an antenna system. In this context, ‘G’ represents the antenna gain, and ‘T’ signifies the system noise temperature.

Antenna G/T Ratio Equation

Inputs

Outputs

Example:

  • INPUTS: Antenna Gain (dB) = 38, Antenna system noise temperature, Kelvin = 6.5E04
  • OUTPUT: Antenna G/T ratio(dB/K) : = -10.12

The following equation or formula is used for calculating the antenna G/T ratio:

G/T Ratio = Antenna Gain (G) / System Noise Temperature (T)

A higher G/T ratio indicates better sensitivity of the system, making it more robust against weak input signals.

Antenna G/T ratio

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