Beigi , P., J. Nourinia, B. Mohammadi, and A. Valizade. “Bandwidth Enhancement of Small Square Monopole Antenna With Dual Band Notch Characteristics Using U-Shaped Slot and Butterfly Shape Parasitic Element on Backplane for UWB Applications”. Applied Computational Electromagnetics Society Journal (ACES) 30, no. 01 (August 24, 2021): 78–85. Accessed May 13, 2026. https://journals.riverpublishers.com/index.php/ACES/article/view/10715.