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Author/Affiliation: Jalal Jomaa

Curved Pyramidal Metamaterial Absorber: From Theory to an Ultra-Broadband Application in the [0.3 – 30] GHz Frequency Band

by Zeinab Fneish, Hussam Ayad, Moncef Kadi, Jalal Jomaa and Ghaleb Faour

Advances in Science, Technology and Engineering Systems Journal, Volume 6, Issue 2, Page # 29–35, 2021; DOI: 10.25046/aj060204

Abstract:

For its importance nowadays in a wide range of applications such as the anechoic chamber, we introduce a microwave ultra-broadband polarization-independent metamaterial absorber (MA) in the Ultra High Frequency (UHF)/ Super High Frequency (SHF) frequency bands. Through this work, we improved the Relative Absorptive Bandwidth (RAB) of the conventional pyramidal absorber (CPA) by modifying its…

RFID Antenna Near-field Characterization Using a New 3D Magnetic Field Probe

by Kassem Jomaa, Fabien Ndagijimana, Hussam Ayad, Majida Fadlallah and Jalal Jomaah

Advances in Science, Technology and Engineering Systems Journal, Volume 2, Issue 3, Page # 492–497, 2017; DOI: 10.25046/aj020363

Abstract:

In this paper the design of a new 3D magnetic field (H-field) probe with a near-field scanning system is presented, then the near electromagnetic fields radiated by a Library RFID system is characterized. The proposed system is developed in order to determine the magnetic near-field emitted by electronic devices. The designed isotropic H-field probe consists…

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(This article belongs to the SP3 (Special issue on Recent Advances in Engineering Systems 2017) & Section Telecommunications (TEL))