Yusop, Siti H., Norbahiah Misran, Mohammad T. Islam, and Muhammad Y. Ismail. “Design of High Performance Dual Frequency Concentric Split Ring Square Element for Broadband Reflectarray Antenna”. Applied Computational Electromagnetics Society Journal (ACES) 27, no. 4 (May 2, 2022): 334–339. Accessed May 13, 2026. https://journals.riverpublishers.com/index.php/ACES/article/view/15187.