Yinfeng Xia, Wei Xue, Yingsong Li, and Lei Zhao. “A Dual-Band WLAN Antenna With Reactive Loading”. Applied Computational Electromagnetics Society Journal (ACES), vol. 34, no. 07, July 2019, pp. 1026-31, https://journals.riverpublishers.com/index.php/ACES/article/view/8327.