Zhang, Jing, Hongchun Yang, and Hongyan Liang. 2021. “Band-Notched Split-Ring Resonators Loaded Monopole Antenna for Ultrawideband Applications”. Applied Computational Electromagnetics Society Journal (ACES) 28 (02):137-42. https://journals.riverpublishers.com/index.php/ACES/article/view/11681.