Application of new weighting functions for design of two-dimensional fractal antenna arrays

On the base of the theory of R-functions, new weighting functions (windows) for synthesis of multi-frequency fractal antenna arrays are proposed and justified. Two-dimensional arrays are studied and the band-switching scheme is developed. Some types of ring antenna arrays with low sidelobe levels are considered. Analysis of the results of numerical experiments shows the benefit of such an approach, which is in the fact that the proper choice of the Kravchenko optimal weighting function (windows) allows one to synthesize a fractal antenna array with the required number of bands and sidelobe level.