Ahmad, Badrul Hisham, and Ian C Hunter. “Substrate Integrated Waveguide Bandstop Filter”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC) 2, no. 1 (June 1, 2010): 9–12. Accessed November 21, 2024. https://jtec.utem.edu.my/jtec/article/view/396.