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← TechnologyWhich risk increases when a phased array antenna steers its beam near the edge of its scan volume?
A)Grating lobe formation becomes prominent✓
B)Increased amplifier power consumption occurs
C)Beam impedance matching improves sharply
D)Main lobe gain experiences null steering
💡 Explanation
Grating lobe formation increases because constructive interference creates unintended secondary beams due to element spacing and phase shifts in the array. Therefore, grating lobes arise rather than improved impedance matching or simple consumption increase given off-axis scans.
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