Analysis of a Linear Modified Yagi-Uda array using Particle Swarm Optimization for the Radiation Pattern Synthesis

This work analyzes a modified linear smart antenna array that uses the Particle Swarm Optimization (PSO) method to maximize the main lobe while minimizes the sidelobes. The antenna array is composed of four commercial seven-element Yagi-Uda antennas and is said to be modified in the sense that the two extreme antennas are tilted sideways at 70° while the other two remain parallel to each other. The electrical feeds of the antennas, phase, and amplitude, are the only parameters to be optimized. An electronically smart antenna was designed, simulated, built, and tested. Simulated and measured radiation pattern results are here reported.