Please explain side lobe statement
Hello, I have Balanis' Antenna Theory 3rd Edition. I read on page 31 at
the very last sentence that "Side lobe levels of -20 dB or smaller are
usually not desirable in most applications."
Why? On the same paragraph it states that "minor lobes represent
radiation in undesired directions, and they should be minimized." If a
side lobe is a minor lobe, then why is it undesirable to have side lobe
levels less than -20 dB? Thanks!
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