Yahya, Salah I., and Abbas Rezaei. “An Area-Efficient Microstrip Diplexer With a Novel Structure and Low Group Delay for Microwave Wireless Applications”. ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY 8, no. 2 (December 17, 2020): 71-77. Accessed January 25, 2021. http://aro.koyauniversity.org/index.php/aro/article/view/753.