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Which risk increases when a phased array antenna's feeders malfunction?

A)Increased grating lobe amplitude
B)Reduced atmospheric scintillation effects
C)Higher carrier frequency leakage
D)Decreased near-field interference

💡 Explanation

Increased grating lobe amplitude occurs because amplitude errors in the array feeders cause deviations from the desired beam pattern due to imperfect constructive interference. Therefore, grating lobes rise, rather than atmospheric effects decreasing or near-field interference improving, because amplitude errors dominate.

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