# Which of the following is the Friss transmission equation for the matched polarization of antennas?

+1 vote
188 views
in Antennas
Which of the following is the Friss transmission equation for the matched polarization of antennas?

(a) $\frac{P_r}{P_t} = \frac{G_t G_r\lambda^2}{(4πR)^2}$

(b) $\frac{P_t}{P_r} = \frac{G_t G_r\lambda^2}{(4πR)^2}$

(c) $\frac{P_r}{P_t} = \frac{G_t G_r\lambda^2}{4πR^2}$

(d) $\frac{P_t}{P_r} = \frac{G_t G_r\lambda^2}{4πR^2}$

The question was asked by my school teacher while I was bunking the class.

The doubt is from Friis Transmission Equation topic in portion Antenna Parameters of Antennas

+1 vote
by (1.4m points)
selected by

Right choice is (a) $\frac{P_r}{P_t} = \frac{G_t G_r\lambda^2}{(4πR)^2}$

Explanation: Friss transmission equation is used to calculate the power received by the receiving antenna when transmitted from other antenna separated by a distance R. the equation is given by $\frac{P_r}{P_t} = \frac{G_t G_r \lambda^2}{(4πR)^2}.$

+1 vote
+1 vote
+1 vote
+1 vote