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Title: Multi-band perfect absorption induced by breaking the symmetry of metamaterial structure
Authors: Dinh, Hong Tiep
Bui, Son Tung
Bui, Xuan Khuyen
Vu, Dinh Lam
Keywords: Multi-band
Breaking symmetry
Metamaterial perfect absorber
Issue Date: 2019
Series/Report no.: Vietnam Journal of Science and Technology;Vol. 57, No. 04 .- P.477-483
Abstract: In this work, a multi-band metamaterial perfect absorber is demonstrated numerically and experimentally in the microwave region based on the breaking symmetry of geometrical structure. Initially, when the structure, which is designed in the X shape, is in the symmetric geometry, only one absorption peak is observed. By breaking the symmetry of structure, new absorption peaks emerge, leading to the multi-band perfect absorption. In addition, the separations of absorption peaks are proportional to the degree of geometrical asymmetry. Our work presents a simple and efficient approach to create multi-band metamaterial perfect absorbers.
ISSN: 2525-2518
Appears in Collections:Vietnam journal of science and technology

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