@article{Nguyen_Nguyen_Dinh_Bui_Bui_Nguyen_Nguyen_Nguyen_Vu_2021, title={Multiband Metamaterial Absorber in a Ring Structure Base on High-order Magnetic Resonance}, volume={31}, url={https://vjs.ac.vn/index.php/cip/article/view/15520}, DOI={10.15625/0868-3166/15520}, abstractNote={We proposed a multi-band metamaterial absorber (MA) based on high-order magnetic resonance using ring-shaped structures. We obtained three absorption peaks at 4.71 GHz (the fundamental resonance), 13.39 GHz (the third-order behavior), and 19.91 GHz (the fifth-order behavior) with correspondent absorptions of 90%, 100%, and 99.33%, respectively. Therefore, these high-order perfect absorptions are the potential to make the easier fabrication for the next generation of MAs, especially in high-frequency regions. Particular, the obtained results are further controlled using the LC circuit model. Besides, by scaling down the unit-cell size, the third- and fifth-order absorptions are created in the THz frequency band.}, number={2}, journal={Communications in Physics}, author={Nguyen, Thi Hien and Nguyen, Thi Anh Hong and Dinh, Thi Nga and Bui, Xuan Khuyen and Bui, Son Tung and Nguyen, Xuan Ca and Nguyen, Van Ngoc and Nguyen, Ba Tuong and Vu, Dinh Lam}, year={2021}, month={May}, pages={199} }