beamwidth

Grating lobes in electronic scanning: the spacing / scan-angle condition that creates false main beams, and design rules to keep them out of visible space.

Articles in this series Phased array antenna — an introduction Electronic scanning arrays (this article) Grating lobes in electronic scanning Array pattern multiplication Introduction Suppose the antenna cannot move — a radar on a mast, a panel on a tower — but you still need the beam to point somewhere else. That is electronic scanning: … Read more