1.

Power density of the receiving antenna is given by _________

A. (P_D= frac{P_t G_t}{4 d^2} )
B. (P_D= frac{P_t G_t}{(4 d/ )^2} )
C. (P_D= frac{P_t G_t G_r}{(4 d/ )^2} )
D. (P_D= frac{P_t G_t}{(4 d)^2} )
Answer» B. (P_D= frac{P_t G_t}{(4 d/ )^2} )


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