Computational studies were performed on circular arrays using tapered Polyethylene (εr =2.3) dielectric rod antennas, of length (L) equal to 3λ0 and taper angle (θ1) equal to 4°, as radiating elements and their results are presented in this paper. The objective of the computational study is to find the best possible number of elements in the array. The Polyethylene dielectric rod antennas are uniformly spaced around the circumference of a circle without overlap between the elements. The number of radiating elements in the array is varied from 4 to 40, with an increase of 4 elements. The principal plane patterns are computed, using the principle of pattern multiplication. For each set of elements, Half Power Beam Width (HPBW), Side Lobe Level (SLL), and Directivity (D0) are determined. The principle plane patterns are presented for the best possible number of elements in the array.

Full text: IJEIR_889_Final.pdf