Contour optimization of a planar broadband dipole using genetic algorithms

The application of genetic algorithm (GA) optimization to the design and analysis for planar broadband dipoles of bow-tie type is presented. Primary attention is given to the analysis of the radiating contour profile of the bow-tie antenna. The planar dipole antenna is proposed for UWB communications in the frequency range 3.1-10.6 GHz. A printed design of the proposed antenna is defined for return loss < -10 dB and antenna gain > 2 dB over the whole frequency range.