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<p>Shielding an electromagnetic field is tedious due to the mechanism we adopt to shield the system. Microwave-absorbing materials stride through their own in shielding the electromagnetic interference happening in an electronic system. A material that uses an absorption mechanism to shield electromagnetic interference will also act as an amazing radar-absorbing material (RAM) in stealth technology. Here, we investigate the shielding property of rGO/ZnO/Fe<sub>3</sub>O<sub>4</sub> nanocomposite by maintaining the same thickness of 2.4&#xa0;mm and varying the Fe<sub>3</sub>O<sub>4</sub> content in the composite. The shielding effectiveness of the material was investigated in the X-band. The results show that the rGO/ZnO/Fe<sub>3</sub>O<sub>4</sub> mainly utilizes an absorption mechanism for shielding, and the maximum shielding effectiveness value reaches up to 31.7&#xa0;dB at 9.9&#xa0;GHz. The improvement in the shielding behavior is attributed to the conductivity, magnetic loss, dielectric loss, and interfacial polarization of the material. The composite proves to be an amazing radar-absorbing material that can be utilized both in stealth aircraft and for avionic systems in all aircraft.</p>

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Influence of Fe3O4 nanoparticles in the electromagnetic interference shielding of rGO/ZnO/Fe3O4 nanocomposite for stealth applications

  • 期刊论文

  • 发表日期：

    2026年1月31日

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  • Kavya Rajan,
  • Sivakumar Manickam,
  • Vellara Pappukutty Pillai Mahadevan Pillai

摘要

Shielding an electromagnetic field is tedious due to the mechanism we adopt to shield the system. Microwave-absorbing materials stride through their own in shielding the electromagnetic interference happening in an electronic system. A material that uses an absorption mechanism to shield electromagnetic interference will also act as an amazing radar-absorbing material (RAM) in stealth technology. Here, we investigate the shielding property of rGO/ZnO/Fe3O4 nanocomposite by maintaining the same thickness of 2.4 mm and varying the Fe3O4 content in the composite. The shielding effectiveness of the material was investigated in the X-band. The results show that the rGO/ZnO/Fe3O4 mainly utilizes an absorption mechanism for shielding, and the maximum shielding effectiveness value reaches up to 31.7 dB at 9.9 GHz. The improvement in the shielding behavior is attributed to the conductivity, magnetic loss, dielectric loss, and interfacial polarization of the material. The composite proves to be an amazing radar-absorbing material that can be utilized both in stealth aircraft and for avionic systems in all aircraft.