REALIZATION OF BROADBAND AND INDEPENDENT POLARIZATION METAMATERIAL PERFECT ABSORBER BASED ON THE THIRD-ORDER RESONANCE

Nguyen Thi Hien, Phan Thi Duyen, Bui Xuan Khuyen, Bui Son Tung, Nguyen Xuan Ca, Pham Thi Thu Ha, Vu Dinh Lam

Abstract


In this report, we studied numerically and experimentally the electromagnetic properties of perfect MAs using ring-shaped structures at microwave frequencies. By creating a magnetic resonance, the ring structure confines electromagnetic energy at the first- and third-order resonances. And then, we leveraged the super-cell structures, which consist of different rings in one unit cell to obtain broadband absorption. The results showed that the absorption band of MA is broaden from 1.3 to 2.17 GHz when the number of rings in the unit cell increases from four to nine-rings

Keywords


Metamaterials, Broadband, Perfect absorption, Third-order resonance

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Published by Vietnam Academy of Science and Technology