paper 141231072055

Abstract

We present optimizations of three-dimensional antenna arrays using heuristic tech- niques coupled with the multilevel fast multipole algorithm (MLFMA). Without resorting to any periodicity and infinity assumptions, antenna arrays are modeled with surface integral equations and simulated via MLFMA, which also enables the analysis of arrays with non-identical elements. Genetic algorithms and particle swarm optimization methods are employed on the complex data produced by MLFMA in phasor domain to find optimal sets of antenna excitations. Effectiveness of the developed mechanism is demonstrated on challenging optimization problems for increasing the directive gain of arrays involving patch antennas.

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H. Boyaci

Özgür Ergül

O. Gokce

Can Onol