Controlled Defect Based Ultra Broadband Full-sized Metamaterial Absorber
Metamaterial full-sized absorber structures are numerically and experimentally investigated in GHz region and then examined in THz frequency. By manipulating monitoring the number and the position of the defect elements in conventional unit cells, the optimal integrative absorber structures are gene...
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| Veröffentlicht in: | Scientific reports 2018-06, Vol.8 (1), p.9523-9, Article 9523 |
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| creator | Tran, Manh Cuong Le, Dinh Hai Pham, Van Hai Do, Hoang Tung Le, Dac Tuyen Dang, Hong Luu Vu, Dinh Lam |
| description | Metamaterial full-sized absorber structures are numerically and experimentally investigated in GHz region and then examined in THz frequency. By manipulating monitoring the number and the position of the defect elements in conventional unit cells, the optimal integrative absorber structures are generated. The proposed structures provide an ultra-broadband absorbance in the operating frequency. The good agreement between simulation, measurement and theoretical analysis is observed with a 5 GHz-bandwidth corresponding to the absorption of 95%. In particular, we extrapolate the concept to THz region and demonstrate that, the method can be applied to increase the bandwidth of the metamaterial absorber to 5 THz, while maintaining the other characteristics. This structure can be applied to improve the performance of telecommunication systems such as micro-antenna, micro-electromagnetic transmitters and apply to imaging and sensing fields. |
| doi_str_mv | 10.1038/s41598-018-27920-1 |
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| subjects | 639/301 639/301/1005 639/624 Boundary conditions Composite materials Computer simulation Defects Humanities and Social Sciences Investigations multidisciplinary Physics Science Science (multidisciplinary) Theoretical analysis |
| title | Controlled Defect Based Ultra Broadband Full-sized Metamaterial Absorber |
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