Hybrid absorber with carbon black composite and metamaterial structure

Dehghan-Banadaki, Mohsen; Heidari, Abbas Ali; Nakhkash, Mansor

doi:10.1049/iet-map.2020.0086

Cited by 4 publications

(1 citation statement)

References 33 publications

(32 reference statements)

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“…On the other hand, even when the incident angle reaches 60°, the absorption intensity in the frequency range of 5–18 GHz is still close to 90%. When the incident angle gradually increases, the angle between the magnetic field direction of the TE mode electromagnetic wave and the surface of the sandwich metamaterial structure increases continuously, resulting in the continuous decrease of its magnetic field and weakening the electromagnetic wave absorbing ability of the metamaterial structure . When the incident angle of the electromagnetic wave in the TM mode increases, the angle between the electric field direction and the surface of the metamaterial structure increases but the direction and magnitude of the magnetic field component do not change.…”

Section: Resultsmentioning

confidence: 99%

Higher Performance Honeycomb Sandwich Metamaterial Microwave Absorber Based on Porous Carbon Combined with Ferroferric Oxide

Han,

Zhu,

Sun

et al. 2024

ACS Appl. Electron. Mater.

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The sandwich metamaterial based on "honeycomblike" porous carbon combined ferroferric oxide (Fe 3 O 4 ) was reported in this paper. By manipulation of the content of carbon and Fe 3 O 4 for adjusting complex and permittivity and permeability, the as-prepared composite P−C-800@Fe 3 O 4 unit cells were used to optimize the electromagnetic composite metamaterials for broadband absorption. For the normal incidence of electromagnetic waves, the sandwich metamaterials demonstrated an excellent broadband absorption in the frequency range of 5−18 GHz and achieved high absorption at low frequency. Meanwhile, the metamaterial structure also can display a wide-angle absorption performance from 0 to 45°for transverse electric (TE) and 0 to 75°for transverse mangentic (TM) mode. The results could contribute potentially to the development of metamaterial absorber applications based on traditional materials, and this research will provide an effective method of lightweight broadband and wideangle microwave metamaterials for engineering applications in the future.

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Section: Resultsmentioning

confidence: 99%