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Compact stepped slot antenna for ultra-wideband applications

Published online by Cambridge University Press:  07 May 2021

B. Hammache Open the ORCID record for B. Hammache [Opens in a new window] ,
A. Messai ,
I. Messaoudene  and
T. A. Denidni
B. Hammache*
Affiliation:
Département d’Électronique, Université Frères Mentouri, Constantine 1, Algeria EMT-INRS, Institut national de la recherche scientifique, 800, rue De La Gauchetière O, Montréal (Qc) H5A 1K6, Canada
A. Messai
Affiliation:
Département d’Électronique, Université Frères Mentouri, Constantine 1, Algeria
I. Messaoudene
Affiliation:
Ecole Nationale Supérieure d'Informatique (ESI ex. INI), BP 68M, Oued Smar, Algiers, Algeria Laboratoire d'Electronique et des Télécommunications Avancées, Université de Bordj Bou Arréridj, El Anceur, 34000, Algeria
T. A. Denidni
Affiliation:
EMT-INRS, Institut national de la recherche scientifique, 800, rue De La Gauchetière O, Montréal (Qc) H5A 1K6, Canada
*
Author for correspondence: B. Hammache, E-mail: boualem_hammache@hotmail.fr
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Abstract

In this paper, a compact stepped slot antenna for ultra-wideband (UWB) applications is proposed. A very small size and UWB bandwidth operation are achieved by integrating a stepped slot in the back side of the antenna. This stepped slot is excited by using a 50 Ω-feed line in the top side of the antenna. The antenna is characterized by an impedance bandwidth between 3.05 GHz and more than 12 GHz. The dimensions of the antenna are 17 mm × 8 mm × 1.27 mm, which leads to the most compact size compared with other works in the literature. The integrated stepped slot is divided into additional elementary slots, where each elementary slot has a matching point. Adding these elementary slots allows to increase further the operating bandwidth. The radiation pattern of the compact stepped slot antenna is omnidirectional in the H-plane and bidirectional in the E-plane. The measurement results agree well with the simulated ones in terms of impedance matching and radiation pattern.

Keywords

Compact antennaradiation patternslot antennastepped slotultra-wideband (UWB)
Type
Antenna Design, Modeling and Measurements
Information
International Journal of Microwave and Wireless Technologies , Volume 14 , Issue 5 , June 2022 , pp. 609 - 615
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Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press in association with the European Microwave Association

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