Azim, R. ., and M. T. . Islam. “Ultra-Wideband Planar Antenna With Notched Bands at 3.5/5.5 GHz”. The Applied Computational Electromagnetics Society Journal (ACES), vol. 31, no. 04, Aug. 2021, pp. 388-95, https://journals.riverpublishers.com/index.php/ACES/article/view/10151.