Multi-objective design optimization of compact quasi-isotropic dielectric resonator antenna

Multi-objective optimization of a quasi-isotropic dielectric resonator antenna (DRA) is presented. Utilization of variable-fidelity electromagnetic (EM) DRA models, response surface approximations, and response correction techniques, allows us to obtain-at a low computational cost-a set of alternative antenna designs representing the best possible trade-offs between three conflicting objectives: antenna size, its reflection response, and quasi-isotropic capability.