Liu S, Yang L, Wu X. A Low-Profile Wideband Circularly Polarized Metasurface Antenna Based on Characteristic Mode Theory. ACES Journal [Internet]. 2022 Nov. 30 [cited 2024 Oct. 3];37(11):1110-7. Available from: https://journals.riverpublishers.com/index.php/ACES/article/view/16325