Novel Particle Swarm Optimization Based Synthesis of an Optimal Beam Steerable Circular Antenna Array for Wireless Applications

Generally, for long-distance communication, an antenna with high directional characteristics is necessary. Antenna arrays have high directive gain compared to a single radiating element. In this paper, the steerable non-uniform circular antenna is designed using evolutionary optimization technique named Novel Particle Swarm Optimization (NPSO). This technique is used to minimize the SLL with respect to the main lobe in the required direction. The simulation results show that the amplitude excitations and the spacing between the elements are optimized, and the Maximum sidelobe levels of array pattern are minimized as per the requirement. Also, improved results are obtained using NPSO compared to other meta-heuristic technique like Particle Swarm Optimization (PSO).