... response sensitivities. Subsequent design refinement is realized using an iterative prediction-correction loop accommodating the discrepancies between the actual and target design specifications. Findings The presented framework is capable of yielding optimized antenna designs at the cost of just a few...

... tremendously. The challenges related to the high-cost of antenna design can be addressed to some extent using surrogate-based optimization (SBO) methods. The basic SBO concept assumes that direct handling of the high-fidelity EM model is replaced by iterative construction and re-optimization of its faster...

... antenna and three-objective design of a compact wideband antenna. Design/methodology/approach The keystone of the proposed approach is the usage of recently introduced nested kriging modeling for identifying the design space region containing the Pareto front and constructing fast surrogate model...

... 2019 Emerald Publishing Limited Licensed re-use rights only Computer-aided design Simulation-driven design Antenna design Input characteristics Trust-region methods Updating formulas Antenna response sensitivity Finite differentiation Design of modern antennas is a comprehensive...

... traditional approaches, especially by combining various sensitivity estimation update measures in an adaptive fashion. In this section, we recall the formulation of the antenna design closure problem, outline the conventional trust-region algorithm, as well as describe the proposed accelerated procedure...

... ) ) (3) u * = max ⁡ { x c * ( 1 ) , … , x c * ( N o b j ) } Multi-objective optimization Evolutionary algorithms Antenna design Computer-aided design (CAD) Microwave and antenna design Surrogate models Domain segmentation Practical design...

... components have to be included into the simulation process (connectors, housing, installation fixtures, etc.) (Bekasiewicz and Koziel, 2015 ; Nguyen, et al., 2013 ; Yang and Kishk, 2012). Consequently, simulation-driven antenna design (typically, adjustment of geometry parameters so that given...

... demanding antenna designs (here, dielectric resonator antenna and compact monopole), which cannot be achieved when conventional methods are of use. The design cost of proposed strategy is up to 60 percent lower than direct optimization exploiting adjoint sensitivities. Experimental validation of the results...

... techniques and co-kriging. Numerical and experimental case studies are provided to demonstrate feasibility of solving real-world and complex antenna design tasks. Findings – It is possible, through appropriate combination of the surrogate modeling techniques (both data driven and physics based...