TY - JOUR N2 - 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. L1 - http://journals.pan.pl/Content/106347/PDF/10.1515mms-2016-0054%20paper%2013.pdf L2 - http://journals.pan.pl/Content/106347 PY - 2016 IS - No 4 EP - 643 DO - 10.1515/mms-2016-0054 KW - compact antennas KW - computer-aided design (CAD) KW - EM-driven design KW - UWB antennas KW - slot antennas KW - surrogate-based optimization A1 - Koziel, SÅ‚awomir A1 - Bekasiewicz, Adrian PB - Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation VL - vol. 23 DA - 2016.12.15 T1 - A Novel Structure and Design Optimization of Compact Spline-Parameterized UWB Slot Antenna SP - 637 UR - http://journals.pan.pl/dlibra/publication/edition/106347 T2 - Metrology and Measurement Systems ER -