Khalid. M. Ibrahim, Walaa. M. Hassan, Esmat A. Abdallah, and Ahmed M. Attiya. 2020. “Wideband Octagonal Dual Circularly Polarized Sub-Array Antenna for Ku-Satellite Systems”. Applied Computational Electromagnetics Society Journal (ACES) 35 (12):1500-1506. https://journals.riverpublishers.com/index.php/ACES/article/view/7439.