Radiation Pattern of a Radially Arranged Array in Relation with the Number of Linear Arrays

Abstract

The radiation of an array antenna that is composed of linear arrays in radial arrangement is analyzed changing the number of the linear arrays. It is verified that the characteristics are greatly dependent on the number of linear arrays, and is well illustrated with a two-dimensional diagram of contour. The angular limitation to give the sinc pattern are clarified. Outside the limitation, there exist unwanted side lobes that are featured with high level and wide beam width.