Tayyab Shabbir, Rashid Saleem, Sabih U. Rehman, and Muhammad Farhan Shafique. “Single Layer Reflectarray Antenna With Pie-Shaped Elements for X-Band Applications”. Applied Computational Electromagnetics Society Journal (ACES), vol. 33, no. 11, July 2021, pp. 1230-5, https://journals.riverpublishers.com/index.php/ACES/article/view/8889.