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Design of Microstrip Antennas Using Differential Evolution Algorithm

Differential evolution (DE) algorithm is applied to the design of single-layer and multi-layer microstrip antennas. For the design of single-layer co-axial probe-fed microstrip antenna, fitness function is obtained from cavity model theory of microstrip antenna, whereas for the design of multi-layer aperture-coupled microstrip antenna, transmission line model is used to obtain fitness function for DE. In both the cases, results obtained using DE, are verified with the results, obtained using genetic algorithm (GA) and particle swarm optimization (PSO).