Sim, M. S., K. Y. You, R. Dewan, F. Esa, M. R. Salim, S. Y. N. Kew, and F. Hamid. “Dual-Band Metamaterial Microwave Absorber Using Ring and Circular Patch With Slits”. Advanced Electromagnetics 12, no. 4 (December 16, 2023): 36–44. Accessed December 13, 2025. https://aemjournal.org/index.php/AEM/article/view/2324.