https://jomcom.org/index.php/1 Journal of Millimeterwave Communication, Optimization and Modelling (JOMCOM) is an international online journal that is published 2 times in a year in English JOMCOM en-US Journal of Millimeterwave Communication, Optimization and Modelling 2791-9293 <p>In JOMCOM- Journal of Millimeterwave Communication, Optimization and Modelling, the copyrights of the articles belong to the Authors.</p> <p>JOMCOM- Journal of Millimeterwave Communication, Optimization and Modelling protects its articles under the Creative Commons (cc by-nc-nd 4.0) license. Authors are considered to have accepted this.</p> https://jomcom.org/index.php/1/article/view/91 <p><strong><em>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Abstract</em></strong><strong><em>—</em></strong> <strong>Smart Grids (SGs) emerge as the cutting-edge power grid system for the future, driven by their resilience, efficiency, reliability, and sustainability. This paper explores the key elements that constitute the smart grid system, management and security, and some advantages of SGs. The components discussed encompass advanced sensors like new sensor-Synchrophasors, renewable energy sources and electric storage, integrated communication systems, distributed power generation, demand response utility rates, and smart meters. Collectively, these components contribute to the evolution and establishment of the SG system. The aim of this paper is to discuss the basic components of Smart Grid (SG) with a focus on the publications between 2018 and 2023.</strong></p> abakar mahamat hassan Copyright (c) 2026 abakar mahamat hassan https://creativecommons.org/licenses/by-nc-nd/4.0 2026-07-27 2026-07-27 6 1 1 5 https://jomcom.org/index.php/1/article/view/104 <p>Antenna array directivity, vital for RF communication, is explored using 2x2 to 64x64 arrays. Matlab simulations at 3.6 GHz with a 30-degree tilt reveal directivity increases with array size: 6.02 dB (2x2) to 36.12 dB (64x64). SNR also improves, from 125 dB to 155.10 dB. A Random Forest Regressor achieves an R-squared of 0.991, optimizing performance. This study emphasizes the need for directivity optimization in modern wireless antenna designs.</p> Imadeldin Elsayed Elmutasim Copyright (c) 2026 Imadeldin Elsayed Elmutasim https://creativecommons.org/licenses/by-nc-nd/4.0 2026-07-27 2026-07-27 6 1 6 12