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← TechnologyWhich effect on a phased array antenna's beamwidth results when individual antenna element spacing increases significantly?
A)Grating lobes begin radiating✓
B)Side lobes diminish in power
C)Main lobe gain steadily increases
D)Beam squint error reduces rapidly
💡 Explanation
Grating lobes appear as the antenna element spacing increases significantly beyond half a wavelength because spatial aliasing introduces ambiguities during beamforming, therefore unwanted radiation peaks emerge, rather than only affecting sidelobe levels or gain.
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