Binbin Yang, Abdullah Eroglu, and Jacob J. Adams. “Shape Synthesis of Multi-Mode Dielectric Resonator Antennas Using Characteristic Modes”. The Applied Computational Electromagnetics Society Journal (ACES), vol. 35, no. 11, Nov. 2020, pp. 1280-1, https://journals.riverpublishers.com/index.php/ACES/article/view/7475.