Friis Transmission Equation Calculator

The Friis transmission equation describes the interaction between a transmit and receive antenna. The form used here assumes the two antennas are polarization matched, and connected to matched transmission lines.This form of the Friis Transmission Equation is as follows:

The Friis Transmission Equation

Input ParametersResults
Frequency:
Transmit Power:
Transmit Antenna Gain:dBi
Receive Antenna Gain:dBi
Antenna Separation:

Input Parameters

Frequency:
Transmit Power:
Transmit Antenna Gain: dB
Receive Antenna Gain: dB
Antenna Separation:

Output Parameters

Error: Can't compute parameters for zero frequency, calculation aborted.