Samani, Mehran Shamaei, Reza Sarraf Shirazi, and Gholamreza Moradi. 2021. “Modal Analysis of Frequency Selective Surface Containing Ring Loops”. Applied Computational Electromagnetics Society Journal (ACES) 30 (10):1074-78. https://journals.riverpublishers.com/index.php/ACES/article/view/10361.