Arshad K. Vallappil, Mohamad Kamal A. Rahim, Bilal A. Khawaja, & Murtala Aminu-Baba. (2020). Metamaterial Based Compact Branch-Line Coupler with Enhanced Bandwidth for Use in 5G Applications. The Applied Computational Electromagnetics Society Journal (ACES), 35(6), 700–708. Retrieved from https://journals.riverpublishers.com/index.php/ACES/article/view/7843