• Laser & Optoelectronics Progress
  • Vol. 55, Issue 6, 061604 (2018)
Honggang Hao, Tianyu Ding*; , Wei Luo, and Xiaochuan Zhou
Author Affiliations
  • School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China
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    DOI: 10.3788/LOP55.061604 Cite this Article Set citation alerts
    Honggang Hao, Tianyu Ding, Wei Luo, Xiaochuan Zhou. Design of Novel Broadband Microwave Absorber Based on Metamaterials[J]. Laser & Optoelectronics Progress, 2018, 55(6): 061604 Copy Citation Text show less
    Schematic of unit cell of absorbent structure.(a) Stereogram; (b) top view; (c) side view
    Fig. 1. Schematic of unit cell of absorbent structure.(a) Stereogram; (b) top view; (c) side view
    Equivalent impedance of metamaterial absorber
    Fig. 2. Equivalent impedance of metamaterial absorber
    Current distributions of top metal and bottom metal surfaces at different resonant frequencies. (a) 11.5 GHz; (b) 15.5 GHz; (c) 21.3 GHz
    Fig. 3. Current distributions of top metal and bottom metal surfaces at different resonant frequencies. (a) 11.5 GHz; (b) 15.5 GHz; (c) 21.3 GHz
    Electric field distributions at different resonant frequencies. (a) 11.5 GHz; (b) 15.5 GHz; (c) 21.3 GHz
    Fig. 4. Electric field distributions at different resonant frequencies. (a) 11.5 GHz; (b) 15.5 GHz; (c) 21.3 GHz
    Influence of structural parameter on wave absorptivity. (a) FR-4 thickness; (b) opening width
    Fig. 5. Influence of structural parameter on wave absorptivity. (a) FR-4 thickness; (b) opening width
    Influence of metallic material parameter on wave absorptivity. (a) Conductivity; (b) relative permittivity
    Fig. 6. Influence of metallic material parameter on wave absorptivity. (a) Conductivity; (b) relative permittivity
    Simulated absorptivity
    Fig. 7. Simulated absorptivity
    Influence of polarization angle on absorption performance at different modes. (a) TE mode; (b) TM mode
    Fig. 8. Influence of polarization angle on absorption performance at different modes. (a) TE mode; (b) TM mode
    Influence of electromagnetic wave on absorption performance under different incidence angles
    Fig. 9. Influence of electromagnetic wave on absorption performance under different incidence angles
    Array. (a) Structural diagram; (b) simulated results
    Fig. 10. Array. (a) Structural diagram; (b) simulated results
    StructureStructure in [12]Structure in [13]Structure in [14]Proposed structure
    Bandwidth /GHz9.49.29100013.07
    Relative FWHM bandwidth /%95.296.132.183.7
    Size /(mm×mm×mm)10×10×310×10×3.60.1×0.1×0.0038×8×2
    Table 1. Comparison among different structural parameters of absorbers