U. H. . Morshidi, “Bandwidth Enhancement of 5G Parallel Coupled Line Band Pass Filter Using Patterned Ground Structure Technique”, ijie, vol. 12, no. 6, pp. 87–93, Jun. 2020, Accessed: Aug. 17, 2024. [Online]. Available: https://publisher.uthm.edu.my/ojs/index.php/ijie/article/view/6394