what is sidelobe of antenna




The half-power beamwidth (HPBW) is the range in degrees such that the radiation
drops to one-half of (or 3 dB below) its maximum. The sidelobes are power radiation
peaks in addition to the main lobe. The sidelobe levels (SLLs) are normally given as
the number of decibels below the main-lobe peak.






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