Antenna optimization using multi-objective algorithms

This paper presents several applications of multiobjective optimization to antenna design, emphasizing the main general steps in this process. Specifications of antennas usually involve many conflicting objectives, related to directivity, impedance matching, cross-polarization and frequency range. These requirements induces multiobjective problems, which are formulated, solved and analyzed here for three distinct antenna designs: a bowtie antenna for ground-penetrating radars, a reflector antenna for satellite broadcast systems, and a meanderline antenna for radio-frequency identification tags. Both stochastic and deterministic methods are considered in the analysis.