Mohra, Ashraf, Abdel Fattah Sheta, and Samir F. Mahmoud. 2022. “New Compact 3 DB 0/180 Microstrip Coupler Configurations”. Applied Computational Electromagnetics Society Journal (ACES) 19 (2):108-12. https://journals.riverpublishers.com/index.php/ACES/article/view/16681.