Háskólinn í ReykjavíkReykjavik UniversityBekasiewicz, AdrianKoziel, SlawomirPlotka, PiotrZwolski, Krzysztof2021-06-302021-06-302021-04-27Bekasiewicz, A.; Koziel, S.;Plotka, P.; Zwolski, K. EM-DrivenMulti-Objective Optimization of aGeneric Monopole Antenna byMeans of a Nested Trust-RegionAlgorithm.Appl. Sci.2021,11, 3958.https://doi.org/10.3390/app110939582076-3417https://hdl.handle.net/20.500.11815/2640Publisher's version (útgefin grein)Antenna structures for modern applications are characterized by complex and unintuitive topologies that are difficult to develop when conventional, experience-driven techniques are of use.In this work, a method for the automatic generation of antenna geometries in a multi-objective set up has been proposed. The approach involves optimization of a generic spline-based radiator with an adjustable number of parameters using a nested, trust region-based algorithm. The latter iteratively increases the dimensionality of the radiator in order to gradually improve its performance. The method has been used to generate a set of nine antenna designs, representing a trade-off between minimization of reflection within 3.1 GHz to 10.6 GHz and a reduction of size. The properties of the optimized designs vary along the Pareto set from−10 dB to−20 dB and from 230 mm2to 757 mm2for the first and second objectives, respectively. The presented design approach has been validated against a genuine, population-based optimization routine. Furthermore, the smallest Pareto-optimal design has been compared to the antennas from the literature.3958eninfo:eu-repo/semantics/openAccessAdjustable dimensionalityEM-driven designmulti-objective optimizationNested optimizationUWB antennasLoftnetHönnunBestuninfo:eu-repo/semantics/articleApplied Sciences10.3390/app11093958