1.

The relation between directivity and the effective aperture of the uniform aperture antenna is given by _____

A. (D = frac{4 pi}{ lambda^2}A_{eff} )
B. (A_{eff} = frac{4 pi}{ lambda^2}D )
C. (A_{eff} = frac{4 pi lambda^2}{D} )
D. (D = frac{4 pi lambda^2}{A_{eff}} )
Answer» B. (A_{eff} = frac{4 pi}{ lambda^2}D )


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