Investigation of Characteristics of Sparse Antenna Systems

Abstract

The problem of forming a radar radiation pattern with a sparse linear antenna array is considered. Sparse structures based on the combination of homogeneous co-prime linear arrays are investigated. The method of forming virtual structures is explained. Using concrete examples, the shape and properties of the side lobes of the amplitude radiation pattern are investigated. The amplitude radiation patterns of two sparse arrays with the same number of physical elements and a conventional antenna with a phased array (FAR) are compared.