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Flexible Perforated High Impedance Surfaces Saud Mohammad S Saeed

Electromagnetic bandgap (EBG) structures are used to suppress surface wave propagation in printed antennas. However, due to the presence of vias, not all of them can be utilized in flexible radiators. Thus, a Perforated High Impedance Surface
(PHIS) is proposed which suppresses the surface waves without the need of vias, and it also serves as a ground plane for
exible antennas. The surface wave suppression and the antenna applications of the proposed PHIS surface are discussed.

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Flexible Antennas for Wearable Devices Saud Mohammad S Saeed
Flexibility, recongurability and wearability technologies for antenna designs are presented, investigated and merged in this work. Prior to the design of these radiating elements, a study is conducted on several fexible substrates and how to fabricate fexible devices. Furthermore, the integration of active devices into the fexible substrates is also investigated. A new approach of designing inkjet-printed flexible reconfigurable antennas, based on the concept of printed slot elements, is proposed. An alternate technique to recongure the folded slot antenna is also reported. The proposed radiator works for both Wireless Local Area Network (WLAN) and Worldwide Interoperability for Microwave Access (WiMAX) applications. The flexible recongurable antenna is also redesigned to resonate at both (2.4/5.2 GHz) for WLAN devices and its Multiple-Input Multiple-Output (MIMO) conguration is reported. Two orthogonal elements are used to form the MIMO antenna system for
better isolation.

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Research Groups Grant Program 2018 عبدالجليل الشيحاوي صالح صالح
EFFECT OF A-TIG ELABORATED FLUX PASTE ON MECHANICAL PROPERTIES AND CORROSION BEHAVIOR OF STAINLESS STEEL (experimental and numerical simulation studies) ...
Research Activities Abdeljelil Mohsen Chammam

My research interests are Power Electronics and Energy; Physics of electrical discharges used as light sources; Impact of lighting on energy; Interaction between light source and associated power supply; Active filter and power quality; Illumination and lighting; environment and quality of life.

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Analysis and Design of Sliding Mode Control for an Electronic Ballast Tlili Hedi Messai

This paper presents the sliding mode control (SMC) of a low pressure discharge lamp and links the theory to practical power supply.

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Modeling and control of a low pressure discharge lamp used for ultraviolet radiations water disinfection Tlili Hedi Messai

In this paper, we present the modeling and control of a low pressure discharge lamp, used for ultraviolet radiations water disinfection, as the most important component of a plasma reactor

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Parameters identification of a low pressure discharge lamp based on PSO Tlili Hedi Messai

This paper presents an intelligent model parameter identification method using particle swarm optimization. This new technique of parameter identification is applied to a nonlinear system which is the conductivity of a low pressure discharge lamp.

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Parameters identification of conductivity model of a low pressure discharge lamp Tlili Hedi Messai

This paper presents the parameter identification of the conductivity model of a low pressure discharge lamp

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Discrete time sliding mode control of a low pressure discharge lamp Tlili Hedi Messai

In this paper, we present a new developed state space model of a low pressure discharge lamp used for water treatment as the most important component in plasma reactor (disinfection by ultraviolet radiations).

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Conductivity Polynomial Model Parameters identification based on Particle Swarm Optimization Tlili Hedi Messai

This paper presents a new approach of parameters identification using Particle Swarm Optimization (PSO).

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