Shallah, Abdulkadir Bello, Farid Zubir, Mohamd Kamal A. Rahim, Mohamad Rijal Hamid, Arshad Karimbu Vallappil, Huda A. Majid, Zubaida Yusoff, and Abdul Basit. “A Compact Metamaterial Dual-Band Branch-Line Coupler for 5G Applications”. ELEKTRIKA- Journal of Electrical Engineering 22, no. 2 (August 28, 2023): 30–36. Accessed July 3, 2024. https://elektrika.utm.my/index.php/ELEKTRIKA_Journal/article/view/448.