Friis Transmission Equation

The Friis transmission equation describes how much power is received by an antenna from another antenna, assuming they are in free space. It shows that the received power depends on the power transmitted, the gain of both antennas, the distance between them, and the frequency of the signal. Essentially, it helps us understand how efficiently a signal travels through space, accounting for the effects of distance and antenna design. This equation is crucial in fields like telecommunications, satellite communication, and wireless networks, ensuring effective and efficient transmission of signals.