An antenna has a power input of 40 watts and a efficiency of 90%. Th – McqOptions

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1.	An antenna has a power input of 40 watts and a efficiency of 90%. The radiation intensity has to have a max of 150 W/unit solid angle. Directivity
A.	13.5
B.	16.67
C.	1.333
D.	1.0748
Answer» C. 1.333

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