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

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

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

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

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

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

Which of the following is the Friss transmission equation for the mat

1.	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.	\(\frac{P_t}{P_r} = \frac{G_t G_r\lambda^2}{4πR^2}\)
Answer» B. \(\frac{P_t}{P_r} = \frac{G_t G_r\lambda^2}{(4πR)^2}\)