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      https://www.ias.ac.in/article/fulltext/boms/043/0116

    • Keywords

       

      Metamaterial absorber; multiband absorber; polarization independent; wide angle; asterisk resonator.

    • Abstract

       

      A novel multiband metamaterial absorber (MTMA) is proposed which is capable of well presenting a polarization-insensitive and wide incident angle stability in the microwave frequency range. The proposed MTMA comprisingtwo vertically stacked asterisk-based copper resonators separated by dielectric layer of flame retardant type four and backed with a thin copper film. High-frequency structure simulator was used to simulate the absorber and to depict surface current distribution. The results showed that the absorber is operated at three narrow bands with high absorptivity of about 92, 100 and 100% at frequencies of 2.75, 4.3 and 9.5 GHz, respectively. The position of the resonant peaks can be effectively tuned by adjusting the geometry parameters of the structure, thereby achieving a multiband, polarization-independent andwide-angle absorber. The designed structure is important for the application of sensors, thermal images and in constructing broad multiband signals for electromagnetic compatibility/interference.

    • Author Affiliations

       

      YADGAR I ABDULKARIM1 2 LIANWEN DENG1 HENG LUO1 SHENGXIANG HUANG1 LONGHUI HE1 LI YUHAN1 FAHMI F MUHAMMADSHARIF3 OLCAY ALTINTAS4 CUMALI SABAH5 MUHARREM KARAASLAN4

      1. School of Physics and Electronics, Central South University, Changsha 410083, People’s Republic of China
      2. Physics Department, College of Science, University of Sulaimani, Sulaymaniyah 46001, Iraq
      3. Department of Physics, Faculty of Science and Health, Koya University, Koya 44023, Iraq
      4. Department of Electrical and Electronics, Iskenderun Technical University, Hatay 31100, Turkey
      5. Department of Electrical and Electronics Engineering, Middle East Technical University, Northern Cyprus Campus, TRNC/Mersin 10, Kalkanli 99738, Turkey
    • Dates

       
  • Bulletin of Materials Science | News

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