No hope othrwys???
i find optics very boring.....
"greater than half-wavelength???? " Antenna spacing > 1/2 does not matter. The receiver sees the energy from all the antennas. If the phaseing is such that the power adds the signal is strong. If the power substracts, because 180, then the signal is very small.
Btw,there may b secondary maximas even if the spacing is less than hlf wavlength,right????
How can we b sure that none of these will b a grating lobe?????