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All Journal TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics
Abderrahim Haddad
Chouaib Doukkali University
Computer Science & IT Electrical & Electronics Engineering

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1×16 Rectangular dielectric resonator antenna array for 24 Ghz automotive radar system Abderrahim Haddad; Mohssin Aoutoul; Mohamed Essaaidi; Khalid Sabri; Abdelaziz Khoukh; Youssef Errami; Anas Had; Fadwa El Moukhtafi; Redouane Jouali
Bulletin of Electrical Engineering and Informatics Vol 11, No 4: August 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v11i4.3068

Abstract

This paper presents the design of a 1×16-elements RDRA array for anti-collision radar SRR application at 24 GHz. A single RDRA with high dielectric constant of 41, fed by a simple microstrip line feeding technique, is initially designed to operate around 24 GHz. The RDRA element is further used within an array network structure made up of 16 linear antenna elements to cover the same frequency band. The simulated 1×16 RDRA array can reach a high gain, up to18.6 dB, very high radiation efficiency (97%), and ensure enough directional radiation pattern properties for radar applications with a 3-dB angular beam width of 6°. To validate our design, RDRA array’ radiation pattern computed results are compared to an equivalent fabricated patch antenna array reported in the literature.
79 GHz three stacked cylindrical dielectric resonator antenna array for automotive radar systems Abderrahim Haddad; Azize Bhaij; Mousa Hussein; Mohssin Aoutoul; Mohammed El Jourmi; Elhadi Baghaz; Said Dlimi; Youssef Errami; Abdellatif Obbadi; Fadwa El Moukhtafi; Redouane Jouali
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 23, No 1: February 2025
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v23i1.26259

Abstract

Very high gain and sharp radiation beam of an original antenna array design, made of 16 linear three stacked cylindrical dielectric resonator antennas (three ScCDRA), is proposed in this work for automotive short-range radar (SRR) applications operating at 79 GHz. Firstly, a single antenna which functions around 79 GHz and reaches a gain value up to 11.8 dB is designed with success by piling three cylindrical DRA having permittivity values, respectively, 17.9, 16.9, and 9. However, relatively near peak values, of the main and the side lobs, makes the preliminary design less efficient for vehicle radar applications. To get a radar design with enhance properties, such as lower return loss, higher gain and especially reduced radiation pattern side lobs, we proceeded with an array design of 16 linear antenna-elements (1×16). As results, the three ScCDRA array structure provides 21.3 dB as gain peak value, a very narrow angular half power beam width (HPBW) of radiation pattern of 0.7 degree at 79 GHz. Feeding network design and positions of the sixteen linear antenna-elements, within this array, have been extensively investigated to carry out an optimal design still resonating around 79 GHz with a lower S11 parameter value up to -40 dB and hilly directional characteristics of radiation diagram.
1×2 microstrip patch antennas array for mm-waves 5G application Karima Benkhadda; Fatehi ALtalqi; Abdelhak Bendali; Abderrahim Haddad; Samia Zarrik; Sanae Habibi; Zahra Sahel; Mohamed Habibi; Abdelkader Hadjoudja
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 23, No 1: February 2025
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v23i1.26263

Abstract

In this paper we present the design of an antenna array for 5G applications. The proposed prototype of the antenna array is design to function at both 24 GHz and 27 GHz frequencies, utilizing Rogers RT5880 with a permittivity equal to 2.2 and a loss tangent of 0.0009. The CST Studio Suite software is employed for simulating the suggested. The primary goals of this research encompass achieving a notable return loss, increased gain, minimized voltage standing wave ratio (VSWR), enhanced directivity, and an overall improvement in operational efficiency. The results of the simulation showcase encouraging performance metrics, including a return loss of -68.70 dB, a bandwidth larger 7.369 GHz (ranging from 22.191 GHz to 29.56 GHz), a gain of 10.52 dB. Furthermore, the microstrip patch antennas (MPA) array system showcases an impressive efficiency rating of 95.63%.
Co-Authors Abdelaziz Khoukh Abdelhak Bendali Abdelkader Hadjoudja Abdellatif Obbadi Anas Had Azize Bhaij Elhadi Baghaz Fadwa El Moukhtafi Fatehi ALtalqi Karima Benkhadda Khalid Sabri Mohamed Essaaidi Mohamed Habibi Mohammed El Jourmi Mohssin Aoutoul Mousa Hussein Redouane Jouali Redouane Jouali Said Dlimi Samia Zarrik Sanae Habibi Youssef Errami Zahra Sahel