Design of concentric bee-hived antenna array using the Invasive Weed Optimization

In this paper, an optimum design of a novel non-uniformly excited planar array is presented by the use of Invasive Weed Optimization algorithm. In the proposed planar array, elements are arranged in a bee-hived configuration and positioned in XY plane producing a symmetrical pattern in every φ cut. The optimization algorithm is utilized for determining the amplitudes and phases of array elements to cut down the side-lobe levels. The results show that the array with bee-hived configuration provides an almost omnidirectional pattern and also the peak side lobe level of the synthesized radiation pattern could be made quite low in comparison with circular and rectangular configurations.