Broadening the absorption bandwidth of metamaterial absorber by coupling three dipole resonances
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In: Physica B: Condensed Matter, Vol. 532, 01.03.2018, p. 90-94.
Research output: Contribution to journal › Article › peer-review
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T1 - Broadening the absorption bandwidth of metamaterial absorber by coupling three dipole resonances
AU - Vu, Dinh Qui
AU - Le, Dinh Hai
AU - Dinh, Hong Tiep
AU - Trinh, Thi Giang
AU - Yue, Liyang
AU - Le, Dac Tuyen
AU - Vu, Dinh Lam
PY - 2018/3/1
Y1 - 2018/3/1
N2 - We numerically and experimentally investigated the metamaterial absorber (MMA) based on ring and dish structures in GHz region. It found that the combined structure of ring and dish (RD) exhibit dual-band absorption peaks at 8.6 and 15.6 GHz. By replacing the ring to the structure of split-ring and dish (SRD), the first magnetic resonance peak is shifted from 8.6 to 14.0 GHz. The physical mechanism of magnetic resonance frequencies was elucidated using simple LC circuit model. We achieved a broadband MMA with bandwidth of 3.7 GHz by arranging four SRD structures into a super unit-cell. The experimental results are good agreement with both the numerical simulation and calculation.
AB - We numerically and experimentally investigated the metamaterial absorber (MMA) based on ring and dish structures in GHz region. It found that the combined structure of ring and dish (RD) exhibit dual-band absorption peaks at 8.6 and 15.6 GHz. By replacing the ring to the structure of split-ring and dish (SRD), the first magnetic resonance peak is shifted from 8.6 to 14.0 GHz. The physical mechanism of magnetic resonance frequencies was elucidated using simple LC circuit model. We achieved a broadband MMA with bandwidth of 3.7 GHz by arranging four SRD structures into a super unit-cell. The experimental results are good agreement with both the numerical simulation and calculation.
U2 - 10.1016/j.physb.2017.03.046
DO - 10.1016/j.physb.2017.03.046
M3 - Article
VL - 532
SP - 90
EP - 94
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
ER -