A COMPARISON BETWEEN CIRCULAR AND HEXAGONAL ARRAY GEOMETRIES FOR SMART ANTENNA SYSTEMS USING PARTICLE SWARM OPTIMIZATION ALGORITHM

Korany Ragab Mahmoud, M. El-Adawy, Sabry M. M. Ibrahem, R. Bansal, Saber Helmy Zainud-Deen
2007 Electromagnetic Waves  
In this paper, circular and hexagonal array geometries for smart antenna applications are compared. Uniform circular (UCA) and hexagonal arrays (UHA) with 18 half-wave dipole elements are examined; also planar (2 concentric rings of radiators) uniform circular (PUCA) and hexagonal arrays (PUHA) are considered. The effect of rotating the outer ring of the PUCA is studied. In our analysis, the method of moments is used to compute the response of the uniform circular and hexagonal dipole arrays in
more » ... al dipole arrays in a mutual coupling environment. The particle swarm optimization (PSO) algorithm is used to optimize the complex excitations, amplitudes and phases, of the adaptive arrays elements for beamforming.
doi:10.2528/pier07030904 fatcat:ptbyxdlu6nf2xo7qhpqyymgzki