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

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 di...

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Main Authors: Koziel Slawomir, Bekasiewicz Adrian
Format: Article
Language:English
Published: Polish Academy of Sciences 2016-12-01
Series:Metrology and Measurement Systems
Subjects:
Online Access:http://www.degruyter.com/view/j/mms.2016.23.issue-4/mms-2016-0054/mms-2016-0054.xml?format=INT
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author Koziel Slawomir
Bekasiewicz Adrian
author_facet Koziel Slawomir
Bekasiewicz Adrian
author_sort Koziel Slawomir
collection DOAJ
description 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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spelling doaj.art-042348c9719543838f30895afafef3e62022-12-22T01:15:29ZengPolish Academy of SciencesMetrology and Measurement Systems2300-19412016-12-0123463764310.1515/mms-2016-0054mms-2016-0054A Novel Structure and Design Optimization of Compact Spline-Parameterized UWB Slot AntennaKoziel Slawomir0Bekasiewicz Adrian1Reykjavík University, School of Science and Engineering, Menntavegur 1, 101 Reykjavík, IcelandReykjavík University, School of Science and Engineering, Menntavegur 1, 101 Reykjavík, IcelandIn 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.http://www.degruyter.com/view/j/mms.2016.23.issue-4/mms-2016-0054/mms-2016-0054.xml?format=INTcompact antennascomputer-aided design (CAD)EM-driven designUWB antennasslot antennassurrogate-based optimization
spellingShingle Koziel Slawomir
Bekasiewicz Adrian
A Novel Structure and Design Optimization of Compact Spline-Parameterized UWB Slot Antenna
Metrology and Measurement Systems
compact antennas
computer-aided design (CAD)
EM-driven design
UWB antennas
slot antennas
surrogate-based optimization
title A Novel Structure and Design Optimization of Compact Spline-Parameterized UWB Slot Antenna
title_full A Novel Structure and Design Optimization of Compact Spline-Parameterized UWB Slot Antenna
title_fullStr A Novel Structure and Design Optimization of Compact Spline-Parameterized UWB Slot Antenna
title_full_unstemmed A Novel Structure and Design Optimization of Compact Spline-Parameterized UWB Slot Antenna
title_short A Novel Structure and Design Optimization of Compact Spline-Parameterized UWB Slot Antenna
title_sort novel structure and design optimization of compact spline parameterized uwb slot antenna
topic compact antennas
computer-aided design (CAD)
EM-driven design
UWB antennas
slot antennas
surrogate-based optimization
url http://www.degruyter.com/view/j/mms.2016.23.issue-4/mms-2016-0054/mms-2016-0054.xml?format=INT
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