@ARTICLE{Koziel_Sławomir_A_2016, author={Koziel, Sławomir and Bekasiewicz, Adrian}, volume={vol. 23}, number={No 4}, journal={Metrology and Measurement Systems}, pages={637-643}, howpublished={online}, year={2016}, publisher={Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation}, abstract={In this paper, a novel structure of a compact UWB slot antenna and its design optimization procedure has been presented. In order to achieve a sufficient number of degrees of freedom necessary to obtain a considerable size reduction rate, the slot is parameterized using spline curves. All antenna dimensions are simultaneously adjusted using numerical optimization procedures. The fundamental bottleneck here is a high cost of the electromagnetic (EM) simulation model of the structure that includes (for reliability) an SMA connector. Another problem is a large number of geometry parameters (nineteen). For the sake of computational efficiency, the optimization process is therefore performed using variable-fidelity EM simulations and surrogate-assisted algorithms. The optimization process is oriented towards explicit reduction of the antenna size and leads to a compact footprint of 199 mm2 as well as acceptable matching within the entire UWB band. The simulation results are validated using physical measurements of the fabricated antenna prototype.}, type={Artykuły / Articles}, title={A Novel Structure and Design Optimization of Compact Spline-Parameterized UWB Slot Antenna}, URL={http://www.journals.pan.pl/Content/106347/PDF/10.1515mms-2016-0054%20paper%2013.pdf}, doi={10.1515/mms-2016-0054}, keywords={compact antennas, computer-aided design (CAD), EM-driven design, UWB antennas, slot antennas, surrogate-based optimization}, }