Generation of cosecant squared pattern from linear array of active and parasitic dipole antennas

ABSTRACT This work uses the active and parasitic components in a linear antenna array composed of parallel dipoles to synthesize a cosecant squared pattern using the Quantum Particle Swarm Optimization approach. This pattern is obtained by the mechanical displacement of the parasitic array of the parallel dipole placed in front of an active dipole array. In addition to it, mutual coupling between the antenna elements is considered in this process. Two examples are presented to visualize the effect of this approach in the synthesis process. Moreover, obtained results from the simulation are also validated by the results produced from FEKO software.