Synthesis of UWB planar antennas by means of natural optimization algorithms




Results of synthesis of planar dipole and modified Vivaldi antenna that provide specified reflection coefficient and directivity within frequency band 3.1–10.6 GHz are presented. The required values of the parameters are achieved through directed modification of arms’ profiles of the dipole antenna and a slot profile of the Vivaldi antenna. Synthesis procedure is performed by means of three different natural algorithms of global optimum search, namely by genetic algorithm, particle swarm optimization algorithm and a novel neuron-genetic algorithm suggested by the authors. The last one is built upon artificial neuron networks and their inversion by genetic algorithm. Synthesis results are confirmed by experimental data.


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