1.
J Acoust Soc Am
; 111(5 Pt 1): 2040-8, 2002 May.
Artigo
em Inglês
| MEDLINE
| ID: mdl-12051424
RESUMO
Most techniques for suppressing grating lobes in phased arrays while relaxing the interelement spacing requirement involve redistributing array elements in sparse aperiodic patterns, or varying the transmit-receive beam patterns. An alternative is presented which uses oversized array elements to eliminate grating lobes as a direct consequence of the element shape. It is shown that by using carefully shaped, overlapping elements, maximum scan angle can be exchanged for a reduced interelement spacing requirement.