Abdhafith , Zamzam, et al. “Impact of Substrate Thickness on the Rectangular Patch Antenna for 5G Communication System by CST Studio ”. Wadi Alshatti University Journal of Pure and Applied Sciences, vol. 2, no. 1, Mar. 2024, pp. 79-83, https://waujpas.com/index.php/journal/article/view/60.