Thắng, Minh, and Nguyen Tuan Khang. “A Method of Reducing Insertion Loss for Microstrip Filters”. Journal of Military Science and Technology 97, no. 97 (August 25, 2024): 75–82. Accessed September 19, 2024. https://en.jmst.info/index.php/jmst/article/view/1089.