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Metrology and Measurement Systems

The Journal of Committee on Metrology and Scientific Instrumentation of Polish Academy of Sciences

4 Issues per year


IMPACT FACTOR 2016: 1.598

CiteScore 2016: 1.58

SCImago Journal Rank (SJR) 2016: 0.460
Source Normalized Impact per Paper (SNIP) 2016: 1.228

Open Access
Online
ISSN
2300-1941
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Volume 23, Issue 4 (Dec 2016)

Issues

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

Slawomir Koziel
  • Corresponding author
  • Reykjavík University, School of Science and Engineering, Menntavegur 1, 101 Reykjavík, Iceland
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Adrian Bekasiewicz
Published Online: 2016-12-13 | DOI: https://doi.org/10.1515/mms-2016-0054

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.

Keywords: compact antennas; computer-aided design (CAD); EM-driven design; UWB antennas; slot antennas; surrogate-based optimization

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About the article

Received: 2016-05-31

Accepted: 2016-07-17

Published Online: 2016-12-13

Published in Print: 2016-12-01


Citation Information: Metrology and Measurement Systems, ISSN (Online) 2300-1941, DOI: https://doi.org/10.1515/mms-2016-0054.

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© Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. BY-NC-ND 4.0

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