Work place: Jimma Institute of Technology /Electrical and Computer Engineering, Jimma, Ethiopia
E-mail: motibyenegole@gmail.com
Website: https://orcid.org/0009-0005-2073-4671
Research Interests:
Biography
Moti Beyene Gole received his MSc degree in Electronics Communication Engineering from Jimma University in 2023. He also received B.Sc. degree in Electrical and Computer Engineering from Debrebirhan University, Ethiopia, in 2018. He worked as an instructor in Jimma Institute of Technology in the Faculty of Electrical and Computer Engineering, Jimma University until 2019. Currently he is an Electrical Engineer in Ethiopian Electric Utility, Ethiopia. His research interests include metamaterial antenna, cyber security, and neural network.
By Moti G. Beyene Isayiyas T. Nigatu
DOI: https://doi.org/10.5815/ijwmt.2025.01.03, Pub. Date: 8 Feb. 2025
Fifth-generation (5G) wireless communication systems employ millimeter-wave (mm-wave) frequency bands to achieve a very broad spectrum for high data rate transmission. To meet the system requirements, the best design of antenna arrays with superior performance is essential. Thus, in this paper, the design and performance analysis of single element, 2 x 1, and 4 x 1 metamaterial inspired millimeter-wave antenna (MIA) arrays are proposed. The antenna elements are designed using Rogers’ 5880 as a substrate material with a 2.2 dielectric constant and thickness of 0.35 mm to operate at a center frequency of 38 GHz. The simulated design of the single, 2 x 1, and 4 x 1 MIA arrays return loss, bandwidth, gain, voltage standing wave ratio (VSWR), and total efficiency are: -82.95 dB, -67.1 dB, -69.12 dB; 1.971 GHz, 2.278 GHz, 4.704 GHz; 7.36 dBi, 9.11 dBi, 11.4 dBi; 1.001432, 1.0009, 1.0007; and 95.55 %, 94.01 %, 95.87. As compared to other works, improved performance has been achieved by considering the effect of meta-materials on the radiator and at the ground of microstrip patch antennas (MPA). The selected type of meta-materials alters the current distribution of the radiating patch that enhances the fringing fields at the edge of MPAs, which inspires the radiation of antennas and reduces the surface wave loss at the radiators’ ground plane. The proposed MIA antenna arrays have improved upon the drawbacks of traditional MPAs and fulfill the requirements of 5G communication systems.
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