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Free space loss factor is given by _____(a) \(\frac{\lambda}{4\pi R}\)(b) \((\frac{\lambda}{4\pi R})^2\)(c) \(\frac{4\pi R}{\lambda}\)(d) \((\frac{4\pi R}{\lambda})^2\)This question was addressed to me in examination.This interesting question is from Friis Transmission Equation in portion Antenna Parameters of Antennas

Answer»

The CORRECT choice is (B) \((\frac{\lambda}{4\pi R})^2\)

Easy explanation: The free space loss factor is given by \((\frac{\lambda}{4\pi R})^2\). It is used to know the amount of losses occurred DUE to the spreading of energy by an ANTENNA.



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