Optimisation of Star fractal antennas by ANN for Multiband applications

Abdelkader Benammar; Amina Bendaoudi; Zoubir Mahjoub

doi:10.5935/jetia.v12i61.4553

Authors

Abdelkader Benammar Department of Electrical Engineering, Faculty of Sciences and Technology, Mustapha Stambouli University, L.E.P.O Laboratory, SBA, Algeria ,Department of Electronics, Electrical Engineering Faculty, LEPO Laboratory, Djillali Liabes University, SBA, Algeria
Amina Bendaoudi Department of Electrical Engineering, Faculty of Sciences and Technology, Mustapha Stambouli University, L.E.P.O Laboratory, SBA, Algeria ,Department of Electronics, Electrical Engineering Faculty, LEPO Laboratory, Djillali Liabes University, SBA, Algeria
Zoubir Mahjoub Department of Electrical Engineering, Faculty of Sciences and Technology, Mustapha Stambouli University, L.E.P.O Laboratory, SBA, Algeria ,Department of Electronics, Electrical Engineering Faculty, LEPO Laboratory, Djillali Liabes University, SBA, Algeria

DOI:

https://doi.org/10.5935/jetia.v12i61.4553

Abstract

In antenna engineering, artificial Neural Networks (ANNs) are increasingly utilized to optimize key performance parameters.Here, An ANN-based approach is employed to enhance the return loss of a modified star fractal antenna operating across the 5.6 to 8.4 GHz frequency band. Multiple geometric parameters are considered as inputs in this model, e. g. the feed line width, the radius of the central circular slot, and also the radius of the neighboring smaller circular slots. The ANN outputs the real and imaginary parts of the return loss, which are then utilized as optimization objectives. To get the dataset for training and validating, electromagnetic simulations were run with CST Microwave Studio. Although the training data was very small, our developed ANN model has come up with quite accurate forecasts and even managed to allocate highly optimized return loss characteristics in a very short period of time

Downloads

Download data is not yet available.

Author Biographies

Amina Bendaoudi, Department of Electrical Engineering, Faculty of Sciences and Technology, Mustapha Stambouli University, L.E.P.O Laboratory, SBA, Algeria ,Department of Electronics, Electrical Engineering Faculty, LEPO Laboratory, Djillali Liabes University, SBA, Algeria

Amina Bendaoudi is a Professor of Engineering (specializing in telecommunications / electronic engineering) at Djillali Liabes University of Sidi Bel Abbès in Algeria, She earned her Doctorate in Electronics, focusing on metamaterials and directive antenna design, at the same university, collaborating with laboratories such as RCAM and LEPO, Her main areas of expertise include:Antennas & propagation,RF and microwave communications,Microwave photonics,Design of metamaterials for wearable / compact wireless systems, She has led projects on metasurface-based wideband filters and compact mmWave/MIMO antennas, including dual‑band 28/38 GHz designs for 5G applications, Authored 67 scientific publications, accumulating over 170 citations . Notable recent papers (2023–2025) include: Design of dual-band circularly-polarized MIMO antennas for 5G mmWave frequencies (n261 & n260 bands) using artificial magnetic conductor metasurfaces, Development of ultra-broadband plasmonic metasurface nano-absorbers for solar energy harvesting, She can be contacted at email: aminabendaoudi@yahoo.fr
Zoubir Mahjoub, Department of Electrical Engineering, Faculty of Sciences and Technology, Mustapha Stambouli University, L.E.P.O Laboratory, SBA, Algeria ,Department of Electronics, Electrical Engineering Faculty, LEPO Laboratory, Djillali Liabes University, SBA, Algeria

Zoubir Mahdjoub was born on July 12, 1958, in Sidi Bel Abbès, Algeria He is a prominent Algerian researcher and academic in the field of electronic and microwave engineering. He plays a key role in educating future engineers and researchers while conducting advanced studies in photonicscRF design and metamaterials, Professor and Head of the Department of Electronic Engineering at Djillali Liabès University, Sidi Bel Abbès, Algeria,Leads the Laboratory of Electronics, Photonics, and Optronics (LEPO) ,His research group focuses on microwave systems, radar, wireless communication, photonics, and metamaterials. Author of more than 120 research publications; Accumulated over 490 citations (as of recent data); Regular supervisor of PhD and Magister theses in the field of telecommunications and microwave devices. Author of the book: "Contribution to the Study and Design of Microwave Devices: Applications to Bandpass and Bandstop Filters" (2017); Contributor to multiple academic works, including studies on Full-Heusler alloys and rare-earth-based nanomaterials. He can be contacted at email: zoubir.mahdjoub@univ-sba.dz