or between grating lobes. It is conceptually useful to distinguish between sidelobes and grating lobes because grating lobes have larger amplitudes than most, if not all, of the other sidelobes. The mathematics of grating lobes is the same as of X-ray diffraction. External links Sidelobes and Beamwidths - An Antenna Tutorial Antennas Radio frequency propagation de:Antennendiagramm#Elemente eines Antennendiagramms