Su, Changyi, Haixin Ke, and Todd Hubing. “A Simplified Model for Normal Mode Helical Antennas”. Applied Computational Electromagnetics Society Journal (ACES) 25, no. 1 (June 17, 2022): 32–40. Accessed May 9, 2026. https://journals.riverpublishers.com/index.php/ACES/article/view/15555.