Multi-objective Synthesis of Antennas from Special and Conventional Materials

Abstract

In the paper, we try to provide a comprehensive look on a multi-objective design of radiating, guiding and reflecting structures fabricated both from special materials (semiconductors, high-impedance surfaces) and conventional ones (microwave substrates, fully metallic antennas). Discussions are devoted to the proper selection of the numerical solver used for evaluating partial objectives, to the selection of the domain of analysis, to the proper formulation of the multi-objective function and to the way of computing the Pareto front of optimal solutions (here, we exploit swarm-intelligence algorithms, evolutionary methods and self-organizing migrating algorithms). The above-described approaches are applied to the design of selected types of microwave antennas, transmission lines and reflectors. Considering obtained results, the paper is concluded by generalizing remarks.

Keywords

• Semiconductor antennas
• conical antennas
• planar antennas
• fractal antennas
• multi-objective optimization
• evolutionary algorithms
• swarm intelligence algorithms
• self-organizing migrating algorithms
• antenna measurements