Saeid Karamzadeh, Vahid Rafiei, and Hasan Saygin. “Circularly Polarized Aperture Coupled Zeroth Order Resonance Antenna for Mm-Wave Applications”. Applied Computational Electromagnetics Society Journal (ACES), vol. 32, no. 09, July 2021, pp. 789-93, https://journals.riverpublishers.com/index.php/ACES/article/view/9497.