The Half-power beam width of the N-element isotropic source array can – McqOptions

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1.	The Half-power beam width of the N-element isotropic source array can be known when _____
A.	( = frac{2.782}{N} )
B.	( = frac{1.391}{N} )
C.	( = frac{1.414}{N} )
D.	( = frac{3}{N} )
Answer» B. ( = frac{1.391}{N} )

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