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158 results on '"Benjillali, Mustapha"'

152. Privacy Preservation in the Internet of Things

Author

Berrehili, Fatima Zahra, Belmekki, Abdelhamid, Tan, Kay Chen, Series Editor, El-Azouzi, Rachid, editor, Menasche, Daniel Sadoc, editor, Sabir, Essaïd, editor, De Pellegrini, Francesco, editor, and Benjillali, Mustapha, editor

Published
2017
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158. Comparative Analysis of Different Excitation Techniques for Cylindrical Dielectric Resonator Antenna

Author

Mohammed Jorio, Fabien Ferrero, Leonardo Lizzi, Kaoutar Allabouche, Najiba El Amrani El Idrissi, Abdellatif Slimani, Jean Marc Ribero, Laboratoire d'Electronique, Antennes et Télécommunications (LEAT), Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Signaux Systèmes et Composants (LSSC), Faculté des sciences (Fès), Mohamed ben abdellah (USMBA), Mohamed ben abdellah, El-Azouzi, Rachid and Menasche, Daniel Sadoc and Sabir, Essaïd and De Pellegrini, Francesco and Benjillali, Mustapha, and Springer Singapore

Subjects
Microstrip slot-coupled line, 90° hybrid coupler, Dielectric resonator antenna, Materials science, HFSS, business.industry, 020208 electrical & electronic engineering, Relative permittivity, Excitation techniques, 020206 networking & telecommunications, 02 engineering and technology, Dielectric resonator, Dielectric, 7. Clean energy, Microstrip, [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, Optics, 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Microstrip line, Hybrid coupler, business, Helical resonator, Cylindrical dielectric resonator antenna
Abstract

International audience; Direct Microstrip line, Microstrip slot-coupled feed and hybrid coupler techniques are investigated for Cylindrical Dielectric Resonator Antenna (CDRA). The Dielectric resonator has a dielectric constant of 30, and etched on Arlan dielectric substrate having a relative permittivity of 3.58 and dimensions of 150 x 150 mm2. The structures are numerically analyzed using the numerical software HFSS. Radiation characteristics including return loss, gain, directivity and VSWR versus frequency characteristic are presented and compared based on the excitation method employed for the studied CDRA. The simulation results proved that the 90° hybrid coupler provides good performances particularly: a wider impedance bandwidth of 1.15 GHz and a maximum coupling of -45 dB.

Published
2016

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