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Graphene-enabled electrically switchable radar-absorbing surfaces

Author

Listed:
  • Osman Balci

    (Bilkent University)

  • Emre O. Polat

    (Bilkent University)

  • Nurbek Kakenov

    (Bilkent University)

  • Coskun Kocabas

    (Bilkent University)

Abstract

Radar-absorbing materials are used in stealth technologies for concealment of an object from radar detection. Resistive and/or magnetic composite materials are used to reduce the backscattered microwave signals. Inability to control electrical properties of these materials, however, hinders the realization of active camouflage systems. Here, using large-area graphene electrodes, we demonstrate active surfaces that enable electrical control of reflection, transmission and absorption of microwaves. Instead of tuning bulk material property, our strategy relies on electrostatic tuning of the charge density on an atomically thin electrode, which operates as a tunable metal in microwave frequencies. Notably, we report large-area adaptive radar-absorbing surfaces with tunable reflection suppression ratio up to 50 dB with operation voltages

Suggested Citation

  • Osman Balci & Emre O. Polat & Nurbek Kakenov & Coskun Kocabas, 2015. "Graphene-enabled electrically switchable radar-absorbing surfaces," Nature Communications, Nature, vol. 6(1), pages 1-10, May.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms7628
    DOI: 10.1038/ncomms7628
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    Cited by:

    1. Zicheng Song & Juan-Feng Zhu & Xianchao Wang & Ruicong Zhang & Pingping Min & Wenxin Cao & Yurong He & Jiecai Han & Tianyu Wang & Jiaqi Zhu & Lin Wu & Cheng-Wei Qiu, 2024. "Origami metamaterials for ultra-wideband and large-depth reflection modulation," Nature Communications, Nature, vol. 15(1), pages 1-9, December.

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