Yan, B. ., D. . Jiang, and J. . Chen. “Triple Notch UWB Antenna Controlled by Novel Common Direction Pentagon Complementary Split Ring Resonators”. Applied Computational Electromagnetics Society Journal (ACES), vol. 29, no. 05, Sept. 2021, pp. 422-7, https://journals.riverpublishers.com/index.php/ACES/article/view/11021.