Jiang, D. ., Y. . Xu, R. . Xu, and W. . Lin. “A Compact Ultra-Wideband Antenna With Improved Triple Band-Notched Characteristics”. Applied Computational Electromagnetics Society Journal (ACES), vol. 28, no. 02, Oct. 2021, pp. 130-6, https://journals.riverpublishers.com/index.php/ACES/article/view/11679.