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A Novel Structure and Design Optimization of Compact Spline-Parameterized UWB Slot Antenna

A Novel Structure and Design Optimization of Compact Spline-Parameterized UWB Slot Antenna


Titill: A Novel Structure and Design Optimization of Compact Spline-Parameterized UWB Slot Antenna
Höfundur: Bekasiewicz, Adrian
Koziel, Slawomir   orcid.org/0000-0002-0584-4427
Útgáfa: 2016-12-01
Tungumál: Enska
Umfang: 637-643
Háskóli/Stofnun: Háskólinn í Reykjavík
Reykjavik University
Deild: Tækni- og verkfræðideild (HR)
School of Science and Engineering (RU)
Birtist í: Metrology and Measurement Systems;23(4)
ISSN: 2300-1941 (eISSN)
0860-8229
DOI: 10.1515/mms-2016-0054
Efnisorð: Computational efficiency; Computer aided design; Slot antennas; Degrees of freedom (mechanics); Structural optimization; Skilvirkni; Tölvustudd hönnun; Loftnet; Verkfræði; Ultra Wideband (UWB)
URI: https://hdl.handle.net/20.500.11815/839

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Tilvitnun:

Koziel, S., & Bekasiewicz, A. (2016). A Novel Structure and Design Optimization of Compact Spline-Parameterized UWB Slot Antenna, Metrology and Measurement Systems, 23(4), 637-643. doi: https://doi.org/10.1515/mms-2016-0054

Útdráttur:

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.

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