M. KENANE Elhadi

MCA

Directory of teachers

Department

Departement of ELECTRONICS

Research Interests

Antenna array Smart antennas Microwaves circuits design

Contact Info

University of M'Sila, Algeria

Email : elhadi.kenane@univ-msila.dz

On the Web:

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Recent Publications

2024-12-17

Analysis and Design of Wideband Vivaldi Antenna for 5G Applications

This paper presents a design and simulation of a novel wideband Vivaldi antenna, which is obtained using exponential curves to achieve optimal performance across multiple frequencies. The proposed antenna operates at four frequency bands 1.14 GHz, 2.84 GHz, 3.5 GHz, and 5 GHz, which makes it suitable for a wide range of 5G applications. The tapered slot Vivaldi antenna, with compact dimensions of 49 × 48.4 × 1.6 mm3, integrates a 3 mm microstrip feed and is designed on an FR4 substrate, which has a dielectric constant of 4.4 with a tangent loss of 0.02. To enhance operational efficiency of our Vivaldi antenna, a circular cut has been introduced in the ground plane, which improving significantly the antenna's radiation characteristics and impedance matching. The design was carried out and analyzed using CST studio simulator. The simulation results indicate a significant improvement in the performance across various stages of the design process. This iterative design process underscores the adaptability of the antenna for a wide frequency band, including 5G bands. Due to its compact size, wideband capabilities, and improved gain and directivity, our proposed enhanced Vivaldi antenna demonstrates considerable promise for integration into modern communication systems, particularly in 5G applications, where wide bandwidth and multi-frequency operations are very important.
Citation

M. KENANE Elhadi, (2024-12-17), "Analysis and Design of Wideband Vivaldi Antenna for 5G Applications", [international] 1st International Conference on Electrical, Computer, Telecommunication and Energy Technologies (ECTE-Tech) , Oum El Bouaghi, Algeria

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2024-11-20

Tunable DRA with parasitic elements for ISM band applications

This work presents a simple stacked rectangular dielectric resonator
antenna (RDRA), which is dedicated for ISM band applications. To design this
RDRA antenna, an EM simulator has been used. The proposed structure consists
of a dielectric resonator, which is mounted on plastic substrate. This resonator is
fed using a simple aperture-coupled feed line over a rectangular feeding slot made
on a copper ground plane. The substrate has a relative permittivity 𝜀𝜀𝑟𝑟 of 2.65 and
tan 𝛿𝛿 0.025. The proposed antenna has a compact size of 49.5x49.5x1.6𝑚𝑚𝑚𝑚3.
The physical dimensions of the dielectric resonator are 30mm, 30mm, and 35mm
for the length, width, and height, respectively. The dielectric resonator of the pro
posed stacked RDRA has two layers. The first layer is constructed using plastic
dielectric, which is used for the construction of our substrate. However, the sec
ond layer is fabricated using FR-4, which has a relative permittivity 𝜀𝜀𝑟𝑟 of 4.4 and
tan 𝛿𝛿 0.025. Due to the using of the second layer in our proposed stacked RDRA,
an enhancement in the gain has been obtained, with a peak gain up to 5 dB and
an efficiency up to 95% over the desired ISM band. In Addition, the obtained
radiation pattern presents high stability over the operating frequency band.
Citation

M. KENANE Elhadi, (2024-11-20), "Tunable DRA with parasitic elements for ISM band applications", [international] 6th International Conference on Electrical engineering and control applications , Khenchela, Algeria.

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2024-10-31

Design and Parametric Analysis of a Rat-Race Power Divider for 5G Applications

Power dividers, including rat-race divider, play a crucial role in wireless communication systems. The rat-race divider has been known in microwave engineering for many decades, which is used in numerous applications such as Mixers, power dividers/combiners, phase shifters, and baluns. To use this rat-race coupler as a power divider, an input signal is applied at one port, the outputs at two other ports are equal in magnitude, but 180 degrees out of phase. This work presents a parametric study of a conventional rat-race coupler, which is intended for 5G lower band applications, using the CST simulator. The parametric study aims to demonstrate the impact of certain parameters such as physical dimensions and electrical properties on the characteristics of our designed rat-race in terms of bandwidth, power ratio, and isolation. The proposed structure of standard rat-race power divider with its four ports operates at the frequency of 3.5 GHz.
Citation

M. KENANE Elhadi, (2024-10-31), "Design and Parametric Analysis of a Rat-Race Power Divider for 5G Applications", [international] 2024 IEEE International Multi-Conference on Smart System & Green Process , Djerba, Tunisia

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2024-10-01

Miniaturized CPW-fed F-Shaped Textile Jeans Antenna Wearable for Medical Applications

This paper introduces a design of CPW-fed Fshaped textile wearable antenna with miniaturized structure, designed to operate at 2.45 GHz for medical applications. The antenna substrate is constructed from jeans material, while the radiating element is comprised of a copper tape. The design is simple, compact and easy to manufacture with only fabric material. Using CST Microwave Studio, the antenna’s behavior has been evaluated, and stable performance has been achieved. The proposed antenna shows promising results, which are compared with similar work.
Citation

M. KENANE Elhadi, Chahrazad Bensid, , (2024-10-01), "Miniaturized CPW-fed F-Shaped Textile Jeans Antenna Wearable for Medical Applications", [national] International Conference on Advances in Electrical and Communication Technologies (ICAECOT) , University of Setif

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Design of Coupled-Line Wilkinson Power Divider for UMTS mobile applications

A power divider is a critical passive device, which is commonly used in microwave systems. This microwave component splits the input power, evenly or unevenly, into several smaller output powers. In this paper, we present a design of a coupled-line Wilkinson power divider (WPD) for UMTS mobiles applications. This divider consist two (λ/4) transmission lines and an isolation resistor R, which is connected between output ports. The main disadvantage of this structure is large size and narrow band, especially at lower frequencies. The proposed design composed a signal coupled line to replace the two (λ/4) transmission lines in conventional WPD and one isolation resistor R. The use of a coupled line, in our WPD, offers many advantages compared to the standard WPD including compact size, wide bandwidth, low profile and high isolation. The design was printed on a Rogers RO4003C with an ɛᵣ=3.55 and a thickness of 0.813 mm. Simulations results indicate that the proposed WPD presents low return losses in all ports and high isolation between output ports over the third-generation mobile band.
Citation

M. KENANE Elhadi, (2024-10-01), "Design of Coupled-Line Wilkinson Power Divider for UMTS mobile applications", [international] 2024 International Conference on Advances in Electrical and Communication Technologies (ICAECOT) , Setif, Algeria

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2024-09-18

Performance analysis of mean level CFAR detectors in homogeneous gamma-distributed radar clutter

In this paper, a novel and exact mathematical formulation of three mean level constant false alarm rate (CFAR) detectors has been developed considering a homogeneous gamma-distributed (GM) clutter. These detectors include the cell averaging (CA), the greatest-of (GO), and the smallest-of (SO)-CFAR detection schemes. To do so, we derived closed-form expressions for the probability density function (pdf), and the cumulative distribution function (cdf) of the sum of an exponential fluctuating target submerged in gamma-distributed sea clutter. Then, we developed exact and explicit expressions for the probability of false alarm (Pfa) and probability of detection (Pd) of the optimal fixed threshold detector and the three considered CFAR detectors. The correctness of our expressions is then examined and validated via numerical simulations. Assuming a homogeneous GM background, the detection performance of these three detectors is carried out, discussed, and compared with that of the optimal detector. Experimental results with Sentinel-1 synthetic aperture radar (SAR) data demonstrate the effectiveness of the proposed closed-form expressions and show that the considered CFAR schemes are efficient for ship detection in sea clutter backgrounds.
Citation

M. KENANE Elhadi, (2024-09-18), "Performance analysis of mean level CFAR detectors in homogeneous gamma-distributed radar clutter", [national] International Journal of Remote Sensing , Taylor & Francis

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2024-05-31

Design of efficient 2.45GHz single-band rectenna system for ISM applications

This work proposes a simple rectenna system operating at 2.45 Ghz ISM bands, using the 50Ω antenna impedance followed by matching impedance and a voltage rectifier circuit. An L-section impedance matching circuit has been designed Depend on RF capacitor and inductor.it was placed between the antenna and the rectifier circuit to reduce the mismatch loss and to ensure maximum power transfer to enhance the rectifier efficiency. Then The rectifier circuit is constructed using voltage doubler configuration with Schottky diode SMS7630−005𝐿F. The proposed design has been simulated and optimized in an advanced design system (ADS ) software. It has been seen in the results that: the proposed system is performing very well at 2.45 𝐺Hz. The proposed rectenna is having a maximum efficiency up to 60% at 2.45 𝐺Hz with an input power of 0 𝑑Bm. Furthermore, with variations in the load resistance across a wide range of values from 5 𝑡o 10 𝑘 Ω with low input power equal to 0 𝑑Bm, the rectenna maintains an efficient power conversion. The output voltage value at 0 𝑑Bm is nearly 1.5 𝑉 with an optimum load 𝑅L = 5 𝐾Ω. The implemented system can be used efficiently for the RF energy harvesting applications.
Citation

M. KENANE Elhadi, (2024-05-31), "Design of efficient 2.45GHz single-band rectenna system for ISM applications", [international] the International Conference on Applied Sciences (ICAS - 2024) , Bosnia and Herzegovina

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2024-05-30

A Wideband and High Isolation GYSEL Power Divider for Wireless communication

Power divider/combiners are among the most commonly used passive devices in the microwave and millimeter wave systems for modern communication. This paper presents simulation of a wideband GYSEL power divider for wireless applications. The GYSEL PD is a three-port device with matched ports and isolated outputs, suitable for high power applications through the use of two shunt-terminated resistors. The proposed power divider consists of transmission line sections with different characteristic impedances and two grounded resistors. The electrical lengths of all the TLs sections are 90º at the design frequency. The divider network is designed using Computer Simulation Technology software by applying proposed GPD design. The GPD was designed on a Rogers’s RO4003C substrate with dielectric constant of 3.55. The thickness of the substrate is 0.508 mm and loss tangent of 0.0027. The proposed GYSEL power divider is printed on a substrate with a size of 35 x 30 mm2. The simulated results of the proposed divider show good return loss, insertion loss and isolation performance across the band from 3.4 to 3.6 GHz; with central frequency at 3.5 GHz. GYSEL power divider can split an incoming signal into two parts successfully. The measured input return loss (S11) are better than -15 dB, and output return loss (S22, S33 ) is better than -20 dB across the wide-band range. The isolation is greater than -30 dB with a very wide band, from 3.4 to 3.6 GHz. In addition, the power is divided equally between output ports with the same phase. This new structure is suitable for wideband, high isolation, and high power applications.
Citation

M. KENANE Elhadi, (2024-05-30), "A Wideband and High Isolation GYSEL Power Divider for Wireless communication", [international] International Conference on Applied Sciences (ICAS - 2024) , Travnik, Bosnia and Herzegovina

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Design of a Reconfigurable Antenna for WLAN Applications

in this paper presents recent advancements in the design and implementation of reconfigurable antennas, focusing on their potential to enhance performance metrics such as bandwidth, gain, and radiation pattern agility. Reconfigurable antennas offer attractive potential solutions to solve the problem of the need to use multiple antennas for different applications, such as Bluetooth, Wi-Fi, WiMAX, WLAN, etc. In this paper, a novel frequency reconfigurable, the antenna design using p-i-n diode is proposed. The antenna switches at two different frequencies between 2.4 GHz and 5.2GHz. The design includes a PIN diode in the feeder to achieve frequency reconfiguration. The antenna (41×44×1.6 mm3) is designed on FR4 substrate with permittivity of 4.4 and tangential loss of 0.02 using the CST Microwave studio simulator. The resulting antenna is suitable for applications wireless local-area network (WLAN) technologies.
Citation

M. KENANE Elhadi, (2024-05-30), "Design of a Reconfigurable Antenna for WLAN Applications", [international] the International Conference on Applied Sciences (ICAS - 2024) , Bosnia and Herzegovina

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2024-05-16

Design of Coupled-Line Wilkinson Power Divider for Wireless Communications

A power divider (PD) is a fundamental component in wireless communication systems. This microwave component divides the input power equally or unequally into several smaller outputs. There are many types of PDs in microwave domain such as Wilkinson power divider (WPD), GYSEL power divider (GPD) and others, however, WPDs are commonly used in microwave electronics. These dividers typically operate at a single frequency band and utilize two quarter-wavelength (λ/4) transmission lines and one isolation resistor. The standard WPD distributes power equally with minimal loss, presents reciprocity as it behaves similarly in both directions, and provides high isolation between the output ports. This paper presents the design of a WPD with coupled lines for wireless applications. The coupled lines offer many advantages to the standard WPD in terms of wide operating frequency range, compact size, and low profile. The proposed WPD operates at 2.1 GHz third generation mobile applications. The designed Wilkinson PD was printed on a Rogers' RO4003C substrate with a dielectric constant of 3.55. The substrate thickness is 0.813 mm, and a copper thickness of 35 μm. Based on the simulation results, it is shown that the proposed WPD presents low return losses in all the ports and high isolation over the third-generation mobile band.
Citation

M. KENANE Elhadi, (2024-05-16), "Design of Coupled-Line Wilkinson Power Divider for Wireless Communications", [international] 3rd International Conference on Engineering, Natural and Social Sciences ICENSOS 2024 , Turkey

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A novel Frequency Reconfigurable L-shaped Antenna for WiMAX and 5G Application

Reconfigurable antennas can be used in contemporary wireless and portable devices to work across many frequency bands and scan radiation patterns in accordance with user requirements. In this paper, we present a simple frequency reconfigurable antenna. Using frequency reconfigurability, one antenna can be used for many applications only by switching between the selected bands. To do the reconfigurability, PIN diodes will be used, by strategically placing these diodes within the antenna structure, the resonance frequency can be adjusted with minimal power consumption. The proposed antenna consists of two asymmetric L-shaped rectangular patches electrically connected by a single PIN diode. The suggested antenna can function in two different frequency bands, depending on the PIN diode's switching state. It operates at 2.1GHz (3G) and 3.5 GHz (5G) during forward bias of the diode, 5.3 GHz (WiMAX) and 2.1 GHz (3G) during reverse bias of the diode. The antenna (32×44×1.6 mm3) is designed on FR4 substrate with permittivity of 4.4 and tangential loss of 0.02 using the CST Microwave studio simulator. this antenna presents a high gain and favorable radiation characteristics in the operating range which is required for fifth-generation networks (5G), and microwave connectivity worldwide interoperability (WiMAX) applications.
Citation

M. KENANE Elhadi, (2024-05-16), "A novel Frequency Reconfigurable L-shaped Antenna for WiMAX and 5G Application", [international] 3rd International Conference on Engineering, Natural and Social Sciences ICENSOS 2024 , Konya, Turkey

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Parametric Study of a Dielectric Resonator Antenna for ISM Applications

Dielectric resonator antennas have become widely used in many applications due to their several advantages such as small size, low profile, low loss, and high gain. This work presents a parametric study of a simple rectangular dielectric resonator antenna (RDRA), which is dedicated for ISM applications. To design this antenna, an EM simulation has been used. The proposed structure consists of plastic substrate and a simple Aperture-coupled feed line over a rectangular feeding slot made at the ground plane. The substrate has a relative permittivity 𝜀𝑟 of 2.65. The proposed antenna has a compact size of 49.5 𝑥 49.5 𝑥 1.6 𝑚𝑚3. During this parametric study, our goal is to show the effect of some DRA parameters on some antenna characteristics in terms of resonance frequency and reflection coefficients. Among the DRA parameters which are used in our parametric study, we can cite the physical dimensions of the resonator and the dimensions of the slot. The physical dimensions of the dielectric patch are 30 𝑚𝑚, 30 𝑚𝑚 and 30 𝑚𝑚 for the length, width, and height, respectively. As a results, the parametric study on the different DRA parameters indicates that the dimension of the dielectric patch and the length of the slot have a considerable effect on the resonance frequency value and the adaptation of the DRA.
Citation

M. KENANE Elhadi, (2024-05-16), "Parametric Study of a Dielectric Resonator Antenna for ISM Applications", [international] 3rd International Conference on Engineering, Natural and Social Sciences (ICENSOS 2024) , Konya Turkey

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A novel Design of Dielectric Resonator Antenna at 2.45 Ghz for ISM Applications

Due to technological advances, dielectric resonators antennas (DRA) have received an extensive interest for wireless communication applications. In this paper, a simple rectangular dielectric resonator antenna (RDRA) for ISM applications is proposed. The designed DRA operates at ISM frequency band covers the 2.45 𝐺𝐻𝑧. Our RDRA antenna is printed on plastic substrate, which has a thickness of 1.575 𝑚𝑚 with a relative permittivity 𝜀𝑟 of 2.65, and a dielectric loss tangent of 0.025. the proposed RDRA is fed using an aperture-coupled microstrip line. The proposed compact DRA has a size of 49.5 𝑥 49.5 𝑥 1.575 𝑚𝑚3. The dielectric patch has physical dimensions of 30𝑥30𝑥30 𝑚𝑚. The results of the proposed DRA is designed, analyzed and simulated using an EM simulator. The simulated results of indicates that the obtained DRA present a gain of 4.45 𝑑𝐵 and a total efficiency of 93%. In addition, this DRA presents a reflection coefficient S11 less than -10 dB (VSWR<2) over a frequency band of 315.2 𝑀𝐻𝑧 from 2.302 to 2.6171 𝐺𝐻𝑧, which covers the 2.45 𝐺𝐻𝑧 which is dedicated for ISM applications.
Citation

M. KENANE Elhadi, (2024-05-16), "A novel Design of Dielectric Resonator Antenna at 2.45 Ghz for ISM Applications", [international] 3rd International Conference on Engineering, Natural and Social Sciences, ICENSOS 2024 , Konya Turkey

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2023-10-21

Design and Parametric Study of a GYSEL Power Divider for Mobile Applications

Power dividers are widely used in antenna arrays feeding, radar systems, communication systems, and medical imaging systems, which makes it indispensable microwave components. These power dividers have several design advantages such as low cost, lightweight and manufacturability. Among these power dividers, one can cite Gysel power dividers which are used for antenna array feeding with high power-handling capability. This work presents a parametric study of a standard design of a Gysel divider intended for mobile applications. To design this power divider, the ADS Momentum simulator has been used. During this parametric study, our goal is to show the effect of some design parameters such as physical dimensions and electrical properties on some GPD characteristics in terms of bandwidth, power ratio, and isolation. The proposed structure consists of standard Gysel power divider of three ports and operating at the frequency of 2.4 GHz.
Citation

M. KENANE Elhadi, (2023-10-21), "Design and Parametric Study of a GYSEL Power Divider for Mobile Applications", [international] NILES 2023 , Nile university Egypt

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2023-08-07

Performance Analysis of the MLG-CFAR Detector in Homogenous Gamma-Distributed Sea Clutter

This letter presents an analytical study of the performance of the maximum-likelihood gamma constant false alarm rate (MLG-CFAR) detector operating over a homogenous gamma-distributed (GM) clutter. To accomplish this task, a novel closed-form expression for the probability of false alarm and a highly accurate approximation for the probability of detection are derived. Specifically, this proposed approximation is also given in a closed form. These expressions, which can be of great interest to the radar community, are given in terms of the Gauss hypergeometric function and the Tricomi function. Besides, the proposed expressions can be easily implemented and computed using most popular scientific software packages such as MATLAB, Maple, and Mathematica. Our propositions are then tested and validated using numerical computing and Monte Carlo simulations. The obtained results demonstrate a high accuracy and significant computational advantages of the proposed expressions compared to the alternative ones. Moreover, the detection performance of the MLG-CFAR detector is also conducted assuming a homogenous clutter with a known shape parameter.
Citation

M. KENANE Elhadi, fdjahli@yahoo.fr, , (2023-08-07), "Performance Analysis of the MLG-CFAR Detector in Homogenous Gamma-Distributed Sea Clutter", [national] IEEE Geoscience and Remote Sensing Letters , IEEE

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2023-08-01

Exact Closed-Form Pfa Expressions for CA- and GO-CFAR Detectors in Gamma-Distributed Radar Clutter

In this correspondence, two exact closed-form expressions for the probability of false alarm have been derived assuming a homogeneous Gamma distributed clutter. These expressions concern both the cell averaging CFAR (CA-CFAR) and the greatest of CFAR (GO-CFAR) detectors. As it will be shown, the proposed expressions are given in terms of the Gauss hypergeometric function and the second Appell function. Our expressions are then examined and validated numerically, by comparing them to their counterparts computed using numerical integrals and Monte-Carlo simulations, considering various scenarios.
Citation

M. KENANE Elhadi, Farid Djahli, , (2023-08-01), "Exact Closed-Form Pfa Expressions for CA- and GO-CFAR Detectors in Gamma-Distributed Radar Clutter", [national] IEEE Transactions on Aerospace and Electronic Systems , IEEE

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2022

BER and Outage Performance for Multi-hop User-Relays NOMA with Imperfect SIC and CSI

This paper examines a downlink multi-hop user
relays assisted non-orthogonal multiple access (NOMA). The
system is used to combat channel disorders, extend the coverage
area, and improve the quality of service (QoS). Both imperfect
successive interference cancellation (SIC) and channel state
information (CSI) are taken into consideration. Under imperfect
SIC and CSI, we obtain the bit error rate (BER) and outage
probability (OP) expressions for the helper user. Then, when
imperfect CSI is available at all hops, we compute the end-toend BER and OP for far user message at each hop. Theoretical
analyses are validated by computer simulations. The findings
indicate that the BER and OP performance deteriorate as the
hops increase. Additionally, at the high signal-to-noise ratio
(SNR), the erroneous SIC and CSI create an error floor and
impact the BER and OP performance at all hops
Citation

M. KENANE Elhadi, (2022), "BER and Outage Performance for Multi-hop User-Relays NOMA with Imperfect SIC and CSI", [national] ICATEEE22 , University of Msila

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Blind Image Separation Using the JADE Method

Blind source separation (BSS) concerns the signal processing techniques that aim to find several elementary components of sources from linear combinations of these sources received on several sensors. This paper presents a method for the extraction of these independent components. It is called Joint Approximate Diagonalization of Eigenmatrices (JADE) and uses fourth-order cumulants. A simulation example shows the performance of the proposed algorithm by displaying its high separation accuracy. The proposed technique is compared to the Equivariant Adaptive Source Separation Algorithm (EASI).
Citation

M. KENANE Elhadi, Amardjia Noureddine, , (2022), "Blind Image Separation Using the JADE Method", [national] engproc , MDPI Tongzhou Office, Beijing

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A novel design of a reconfigurable power divider with stubs for mobile applications

Nowadays, the world knows a huge revolution in telecommunications, which has led to the need to integrate many services, such as long-term evolution (LTE), 5G, wireless local area network (WLAN), and Bluetooth, in one receiving and transmitting device. In the same way, all active and passive microwave circuits must be compatible with the integration of services, including the power divider, which is the subject of our work. This passive component is used in several fields such as medicine, surveillance, radar systems and others applications. Wilkinson divider is one of the most prominent power dividers, it is classified as narrow-band power divider and it is a very useful component in mobile applications (2.4 and 5.8 GHz). In this work, a reconfigurable 4-ports Wilkinson divider is designed using PIN diodes and simulated using connected speech test (CST) simulator software. This designed divider can easily modify the operation mode by activating or disabling the PIN diodes.
Citation

M. KENANE Elhadi, Farid Djahli, , (2022), "A novel design of a reconfigurable power divider with stubs for mobile applications", [national] Indonesian Journal of Electrical Engineering and Computer Science , ijeecs

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A Novel Blind Image Source Separation Using Hybrid Firefly Particle Swarm Optimization Algorithm

Signal and image separation are extensively used in numerous imaging applications and communication systems. In this paper, a novel Blind Source Separation (BSS) approach, based on the Hybrid Firefly Particle Swarm Optimization (HFPSO), is proposed for separating mixed images. This approach processes the observed source without any prior knowledge about the model and the statistics of the source signal. The proposed method presents high robustness against local minima and converges quickly to the global minimum. Via numerical simulations, the proposed approach is tested and validated in comparison with standard Particle Swarm Optimization (PSO), Robust Independent Component Analysis (RobustICA), and Artificial Bee Colony (ABC) algorithms. The obtained results show that the presented technique outperforms the existing ones in terms of quality of image separation, the Signal-to-Noise Ratio (PSNR), and Structural Similarity Index Measure (SSIM). Moreover, the obtained results demonstrate that our approach provides also promising results in image separation from noisy mixtures.
Citation

M. KENANE Elhadi, Farid Djahli, , (2022), "A Novel Blind Image Source Separation Using Hybrid Firefly Particle Swarm Optimization Algorithm", [national] Engineering, Technology & Applied Science Research , ETASR

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2021-03-24

Nonuniform Circular Array Synthesis for Low Side Lobe Level Using Dynamic Invasive Weeds Optimization.

The use of invasive weeds optimization in the synthesis of antenna arrays has become popular in the last few years. This optimization method is robust, simple and can be easily improved. Like other stochastic algorithms, IWO suffers from premature convergence and other drawbacks. To overcome these problems, a dynamic IWO is proposed and used for synthesizing two antenna array topologies (linear and circular array). This proposed method tries to achieve an optimal array pattern by acting on the amplitude excitation of elements in the non-uniform circular array and their positions on the array to obtain an array pattern with deep nulls in some directions of interferences and low side lobe level. For the linear array, the nulls control can be achieved by acting on the relative amplitude excitation of each element in the array for an optimal inter-element spacing. This proposed method improves the performance greatly and allows to achieve a maximum reduction in side lobe level in band Nulls with an acceptable dynamic range ratio (DRR). To show the performance of the proposed method, for each topology, our results are compared to other results of the literature.
Citation

M. KENANE Elhadi, Farid Djahli, , (2021-03-24), "Nonuniform Circular Array Synthesis for Low Side Lobe Level Using Dynamic Invasive Weeds Optimization.", [national] Progress In Electromagnetics Research C , PIER

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2021-02-04

Parametric Study and Optimization of a Dual-BandFour Port Wilkinson Power Divider

The use of invasive weeds optimization in the synthesis of antenna arrays has become popular in the last few years. This optimization method is robust, simple and can be easily improved. Like other stochastic algorithms, IWO suffers from premature convergence and other drawbacks. To overcome these problems, a dynamic IWO is proposed and used for synthesizing two antenna array topologies (linear and circular array). This proposed method tries to achieve an optimal array pattern by acting on the amplitude excitation of elements in the non-uniform circular array and their positions on the array to obtain an array pattern with deep nulls in some directions of interferences and low side lobe level. For the linear array, the nulls control can be achieved by acting on the relative amplitude excitation of each element in the array for an optimal inter-element spacing. This proposed method improves the performance greatly and allows to achieve a maximum reduction in side lobe level in band Nulls with an acceptable dynamic range ratio (DRR). To show the performance of the proposed method, for each topology, our results are compared to other results of the literature.
Citation

M. KENANE Elhadi, Farid Djahli, , (2021-02-04), "Parametric Study and Optimization of a Dual-BandFour Port Wilkinson Power Divider", [national] Progress In Electromagnetics Research C , Progress In Electromagnetics Research

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2021

Blind Image Separation Using Joint Approximate Diagonalization of Eigenmatrices (JADE) Method

Blind source separation (BSS) concerns the signal processing techniques that aim to find several elementary components of sources from linear combinations of these sources received on several sensors. This paper presents a method for the extraction of these independent components. It is called Joint Approximate Diagonalization of Eigenmatrices (JADE) and uses fourth-order cumulants. A simulation example shows the performance of the proposed algorithm by displaying its high separation accuracy. The proposed technique is compared to the Equivariant Adaptive Source Separation Algorithm (EASI)
Citation

M. KENANE Elhadi, Amardjia Noureddine, , (2021), "Blind Image Separation Using Joint Approximate Diagonalization of Eigenmatrices (JADE) Method", [national] ICCEIS2021 , University of Boumerdes

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A Dynamic Invasive Weeds Optimization Applied to Null Control of Linear Antenna Arrays with Constrained DRR

In the present work, a dynamic stochastic method is proposed and used for the synthesis of uniform linear antenna arrays. The proposed method combines the classical invasive weeds (IWO) and the mutation process, which makes it robust, simple and shows flexibility to be adapted. The dynamic IWO applies the mutation process in the calculation of standard deviation during the spatial dispersal process of produced seeds while keeping the mean at the parent plants. In the mutation process, if special conditions were achieved, the standard deviation would be re-initialized. This proposed method tries to achieve an optimal array pattern by acting on the relative amplitude excitation of each element in the linear array for an optimal inter-element spacing. The optimal array pattern has deep or broad nulls in some directions of interferences with low sidelobes level. The objective of the synthesis is to get amplitude excitations with low dynamic range ratio (DRR), which facilitates the design of beamforming feed network. To illustrate the robustness of the proposed method, numerical examples are presented and compared with the obtained results using bees algorithm (BA), bacterial foraging algorithm (BFA), real genetic algorithm (RGA), and the corresponding reference array pattern for each example.
Citation

M. KENANE Elhadi, Farid Djahli, , (2021), "A Dynamic Invasive Weeds Optimization Applied to Null Control of Linear Antenna Arrays with Constrained DRR", [national] Advanced Electromagnetics , Advanced Electromagnetics

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2020-12-12

A Dual Band Four Ports WILKINSON Power Divider Design

In the present paper, a dual band four-way Wilkinson power divider (WPD) using a genetic algorithm (GA) optimization is designed and simulated using ADS Momentum simulator. The proposed power divider is developed to support dual bands of WLAN applications. The present power divider is formed by many transmission lines sections. The transmission lines are printed on FR4 (Flame Resistant 4) substrate of dielectric constant εr of3.4 with loss tangent of 0.0023. The proposed circuit exhibits good characteristics at WLAN frequencies (2.45GHz & 5.8 GHZ) in terms of return loss and isolation.
Citation

M. KENANE Elhadi, (2020-12-12), "A Dual Band Four Ports WILKINSON Power Divider Design", [international] IEEE 6th International Congress on Information Science and Technology (CiSt), Morocco , Morocco

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2020

Design of implanted tri-band PIFA antenna for MedRadio and ISM bands

In this paper, a tri-band inverted F antenna was
proposed for wireless data telemetry and power transmission
operation. This antenna will be implanted in human body. This
surrounding medium witch having the properties of biological
tissues will be considered. The proposed antenna covers three
bands: MedRadio (401 – 405)MHz, and ISM (902.8 – 928)MHz,
and ISM (2.4 – 2.5) GHz. The antenna is inserted in the biological
tissue, The dimensions of the proposed antenna are 16 × 11 ×
1:27mm3. The presented antenna is printed on Roger RO3210
substrate with dielectric constant "r = 10:2 and tan δ = 0:003
Citation

M. KENANE Elhadi, (2020), "Design of implanted tri-band PIFA antenna for MedRadio and ISM bands", [national] IC3E2020 , University of Buira

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2019-12-17

spectral domain analysis of circular printed antenna on uniaxially anisotrop substrate

The spectral Domain approach is extensively used in microstrip analysis and domain. In such approach, the spectral dyadic Green's function which relates the tangential electric field and currents at various conductor planes should be determined. Many techniques have been proposed to derive the Green's function. The effect of both uniaxially anisotropy in the substrate on the resonant frequency and bandwidth of circular microstrip patch are investigated. The problem is regorously formulated using integral equation, the Kernel of which in the full wave spectral domain dyadic Green's function for multilayer dielectric substrates.
Citation

M. KENANE Elhadi, Dib Samira, Christophe Dumon, , (2019-12-17), "spectral domain analysis of circular printed antenna on uniaxially anisotrop substrate", [international] ICAME2019 , Istanbul, Turkey

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2019-10-26

Effects of Superstrate Layer on the Resonant Characteristics of Annular-Ring printed Antenna

In practice, it was found that the choice of the substrate or superstrate material of printed antennas is of a great importance and plays a significant role in achieving the optimum resonant characteristics of the antenna; Uniaxial dielectrics have drawn more attention due to their availability in materials such as sapphire, boron nitride and Epsilam-10 ceramic-impregnated Tefon. Previous studies of anisotropic materials used in microwave devices indicate that the effects of anisotropy on the performance of such structures particularly in high frequencies cannot be ignored.
Three very popular full wave methods that can be used to characterise microstrip patch antennas are: the finite element method, the finite difference time domain method, and the moment method. The last one also known as the full-wave method is arguably the most popular method for the analysis of microstrip antennas.
In this work, resonant characteristics (the resonant frequency, the Half-power bandwidth) of an annular microstrip patch printed on uniaxially anisotropic substrate and covered with an anisotropic superstrate layer are studied using an electric field integral equation and the spectral domain Green’s function. In order to validate the present method, we have confronted our results with theoretical and experimental data from the literature and very Good agreements were obtained between our computed data and measurements, and the convergence of the method is proven.
Citation

M. KENANE Elhadi, DUMOND Christophe, , (2019-10-26), "Effects of Superstrate Layer on the Resonant Characteristics of Annular-Ring printed Antenna", [national] The Eurasia Proceedings of Science, Technology, Engineering & Mathematics (EPSTEM) , ISRES Publishing

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2019

Experimental Validation of Hybrid EMD-Correlation Acoustic Digital Leaks Detector in Water Distribution Network System

Water is a vital resource for life as well as for the majority of energy industries. Finding a way to manage this water sustainably is essential at a time when the world’s water resources are already under increasing stress due to population growth and global warming. As a direct implication, saving water is coming very crucial. This work deals with the application of the empirical mode decomposition method to the detection and the localization of the leaks using acoustic signals issued from STM32F4 acquisition card. Firstly, the empirical mode decomposition method has been applied in the denoising of acquired signals leading to two estimated components on which we apply secondly the correlation method to detect and localize the leakage in water distribution network. Experimental obtained results using a developed hydraulic plant as well as the acquisition system confirm the efficiency of the proposed method to detect accurately the leaks compared to conventional leaks detection methods.
Citation

M. KENANE Elhadi, Abdelghani Harrrag, , (2019), "Experimental Validation of Hybrid EMD-Correlation Acoustic Digital Leaks Detector in Water Distribution Network System", [national] Instrumentation Mesure Métrologie , IIETA

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Blind Audio Source Separation Based On High Exploration Particle Swarm Optimization

Blind Source Separation (BSS) is a technique used to separate supposed independent sources of signals from a given set of observations. In this paper, the High Exploration Particle Swarm Optimization (HEPSO) algorithm, which is an enhancement of the Particle Swarm Optimization (PSO) algorithm, has been used to separate a set of source signals. Compared to PSO algorithm, HEPSO algorithm depends on two additional operators. The first operator is based on the multi-crossover mechanism of the genetic algorithm while the second one relies on the bee colony mechanism. Both operators have been employed to update the velocity and the position of the particles respectively. Thus, they are used to find the optimal separating matrix. The proposed method enhances the overall efficiency of the standard PSO in terms of good exploration and performance. Based on many tests realized on speech and music signals supplied by the BSS demo, experimental results confirm the robustness and the accuracy of the introduced BSS technique.
Citation

M. KENANE Elhadi, Nourredine AMARDJIA, Djamel chikouche, Abdelouahab Attia, , (2019), "Blind Audio Source Separation Based On High Exploration Particle Swarm Optimization", [national] KSII Transactions on Internet and Information Systems , TIIS

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2018-07-23

Resonant Characteristics of Circular HTC Superconducting Printed AntennaCoveredwith a Dielectric Layer

Effects of a superstrate layer on the resonant frequency and bandwidth of a high Tc superconducting (HTS) circular printed patch are investigated in this paper. For that, a rigorous full-wave spectral analysis of superconducting patch in multilayer configuration is described. In such an approach, the spectral dyadic Green's function which relates the tangential electric field and currents at various conductor planes should be determined. Integral equations are solved by a Galerkin's moment method procedure, and the complex resonance frequencies are studied with basis functions involving Chebyshev polynomials in conjunction with the complex resistive boundary condition. To include the superconductivity of the disc, its complex surface impedance is determined by using London's equation and the model of Gorter and Casimir. Numerical results are compared with experimental results of literature as well as with the most recent published calculations using different methods. A very good agreement is obtained. Finally, superstrate loading effects are presented and discussed showing interesting enhancement on the resonant characteristics of the superconducting antenna using combinations of Chebyshev polynomials as set of basis functions.
Citation

M. KENANE Elhadi, Christophe Dumon, , (2018-07-23), "Resonant Characteristics of Circular HTC Superconducting Printed AntennaCoveredwith a Dielectric Layer", [national] Progress In Electromagnetics Research M , PIER

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2018

An Adaptive Power Control Algorithm For 3G Cellular Networks

The main goal of the present paper is the study of transmitted power control (TPC) algorithms for mobile cellular systems (UMTS). A novel power control algorithm and some already existing ones have been studied focusing on resolving the near-far problem that affects the performance of the system a whole. Unlike the other existing power control algorithms, and besides the dynamic step size, our Modified Adaptive Power Control algorithm (MAPC) shows its uniqueness in the intelligence added to restrict the oscillations of the estimated signal to interference ratio (SIR) around its target value by using a stabilization zone. Simulations were carried out to evaluate the robustness of the novel algorithm. The results show that the proposed algorithm outperforms the other existing power control algorithms.
Citation

M. KENANE Elhadi, Fegriche Fatima zahra, Farid Djahli, , (2018), "An Adaptive Power Control Algorithm For 3G Cellular Networks", [international] International Conference on Communications and Electrical Engineering , El Oued, Algeria

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Techniques d'optimisation des réseaux d'antennes intelligentes : utilisées en téléphonie mobile

Dans cet ouvrage, nous proposons une méthode d'optimisation qui permet de faire la synthèse d'un réseau d'antennes linéaires en contrôlant les poids d'alimentations et/ou la distance inter-éléments d'un réseau d'antennes adaptatif, afin de maximiser le rapport signal à bruit plus interférences (SINR) et minimiser le niveau de lobes secondaires (NLS). Cette méthode est basée sur une méthode récente, dite méthode des mauvaises herbes (invasive weed optimization), inspirée du comportement intelligent de la colonisation des mauvaises herbes dans la nature. Elle a été développée pour la première fois en 2006, puis modifiée afin d'augmenter la vitesse de convergence et améliorer l'exploration de l'espace de recherche. Le choix de l'écart type affecte souvent les deux caractéristiques précédentes (la vitesse de convergence et l'exploration de l'espace de recherche). Pour évaluer la robustesse et les performances de cette méthode par rapport à d'autres méthodes équivalentes telles que l'algorithme génétique, l'essaim de particule et l'algorithme d'évolution différentielle (DE), plusieurs exemples de synthèse sont présentés.
Citation

M. KENANE Elhadi, Farid Djahli, , (2018), "Techniques d'optimisation des réseaux d'antennes intelligentes : utilisées en téléphonie mobile", [national] , Noor Publishing

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2016

Optimum design of non-uniform symmetrical linear antenna arrays using a novel modified invasive weeds optimization

This paper presents a new modified method for the synthesis of non-uniform
linear antenna arrays. Based on the recently developed invasive weeds optimization
technique (IWO), the modified invasive weeds optimization method (MIWO) uses the
mutation process for the calculation of standard deviation (SD). Since the good choice of
SD is particularly important in such algorithm, MIWO uses new values of this parameter
to optimize the spacing between the array elements, which can improve the overall
efficiency of the classical IWO method in terms of side lobe level (SLL) suppression and
nulls control. Numerical examples are presented and compared to the existing array
designs found in the literature, such as ant colony optimization (ACO), particle swarm
optimization (PSO), and comprehensive learning PSO (CLPSO). Results show that
MIWO method can be a good alternative in the design of non-uniform linear antenna
array.
Citation

M. KENANE Elhadi, Farid Djahli, , (2016), "Optimum design of non-uniform symmetrical linear antenna arrays using a novel modified invasive weeds optimization", [national] Archives of electrical engineering , De Gruyter

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2015

Synthesis of Cosecant Linear Antenna Array Pattern using a Novel Modified Invasive Weeds Optimization

In this paper, a new modified method is presented
for the synthesis of a linear antenna array to obtain a desired
array pattern (shaped or pencil) with low side lobe level. Based
on the original invasive weeds optimization (IWO), our
modified IWO (MIWO) uses the process of mutation for the
calculation of standard deviation. The shaped beam pattern is
synthesized by respecting a desired cosecant pattern and
supressing side lobe level to -25 dB. To achieve the desired
pattern, both amplitude and phase of each element in the array
are optimized when the spacing between the elements is fixed to
the half wavelength. For the desired pencil beam pattern, the
inter-element spacing’s are controlled while maintaining
uniform excitations. Selected examples, for both shaped and
pencil beam, are presented to show the effectiveness and
flexibility of the proposed method
Citation

M. KENANE Elhadi, Farid Djahli, Bartil Arres, , (2015), "Synthesis of Cosecant Linear Antenna Array Pattern using a Novel Modified Invasive Weeds Optimization", [national] Elektronika IR Elektrotechnika , Elektronika ir Elektrotechnika

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A Novel Modified Invasive Weeds Optimization for Linear Array Antennas Nulls Control

In this paper, a novel modified invasive weeds optimization (MIWO) is used for the synthesis of linear array antennas. The synthesis problem discussed in this paper is to find the amplitude excitation of the antenna array elements that are optimum to provide radiation pattern with symmetric wide nulls in both sides of the main beam. The Dynamic Range Ratio (DRR) is taken into account in this study. Unlike other simple algorithms, the Modified Invasive Weeds Optimization (MIWO) uses the mutation in the calculation of standard deviation, which changes the step of search in many directions and positions, from the parent plant, to produce new seeds. This proposed algorithm improves the performance greatly and allows to achieve a maximum reduction in side lobe level in band Nulls and with an acceptable DRR value. To show the performance of the proposed method, our results are compared to other results in the literature. They are also compared to a uniform excited linear.
Citation

M. KENANE Elhadi, Djahli Farid, Christophe Dumond, , (2015), "A Novel Modified Invasive Weeds Optimization for Linear Array Antennas Nulls Control", [national] 4th IEEE International Conference on Electrical Engineering (ICEE 2015) , Boumerdes, Algeria

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