Zafar Bedar Khan, and Huiling Zhao. “An Improved Design of Equal-Split Filtering Divider With Integrated Coupled-Line Band-Pass Filter”. Applied Computational Electromagnetics Society Journal (ACES), vol. 32, no. 09, July 2021, pp. 794-9, https://journals.riverpublishers.com/index.php/ACES/article/view/9499.