Friis Transmission Equation

The Friis transmission equation is used in telecommunications engineering, and gives the power received by one antenna under idealized conditions given another antenna some distance away transmitting a known amount of power. The formula was derived in 1945 by Danish-American radio engineer Harald T. Friis at Bell Labs.

Read more about Friis Transmission Equation:  Basic Form of Equation, Modifications To The Basic Equation

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