Journal of the Korea Institute of Military Science and Technology (한국군사과학기술학회지)

The Korea Institute of Military Science and Technology (한국군사과학기술학회)
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A Study on Design and Microwave Characteristics of a RF/IR Multispectral Absorber

전자파/적외선 다중파장 흡수체의 설계와 초고주파 특성에 관한 연구

  • Minah Yoon (Center for Advanced Meta-Materials) ;
  • Suwan Jeon (Department of Nano-Display, Korea Institute of Mechinary & Materials) ;
  • Youngeun Ra (Department of Mechanical R&D, LIG NEX1 Co., Ltd.) ;
  • Yerin Jo (Center for Advanced Meta-Materials) ;
  • Wonwoo Choi (Center for Advanced Meta-Materials) ;
  • Yukyoung Lee (Department of Mechanical R&D, LIG NEX1 Co., Ltd.) ;
  • Kwangseop Kim (Department of Nano-Display, Korea Institute of Mechinary & Materials) ;
  • Jonghak Lee (Department of Mechanical R&D, LIG NEX1 Co., Ltd.) ;
  • Kichul Kim (Center for Advanced Meta-Materials) ;
  • Taein Choi (Center for Advanced Meta-Materials) ;
  • Hakjoo Lee (Center for Advanced Meta-Materials)
  • 윤민아 (파동에너지극한제어연구단) ;
  • 전수완 (한국기계연구원 나노디스플레이연구실) ;
  • 라영은 (LIG넥스원(주) C4ISTAR기계융합연구소) ;
  • 조예린 (파동에너지극한제어연구단) ;
  • 최원우 (파동에너지극한제어연구단) ;
  • 이유경 (LIG넥스원(주) C4ISTAR기계융합연구소) ;
  • 김광섭 (한국기계연구원 나노디스플레이연구실) ;
  • 이종학 (LIG넥스원(주) C4ISTAR기계융합연구소) ;
  • 김기출 (파동에너지극한제어연구단) ;
  • 최태인 (파동에너지극한제어연구단) ;
  • 이학주 (파동에너지극한제어연구단)
  • Received : 2024.02.28
  • Accepted : 2024.04.19
  • Published : 2024.06.05
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Abstract

In this paper, a design for a radio frequency(RF) and infrared(IR) absorber with metasurfaces is discussed in microwave frequency bands. The RF absorber includes double layers of metasurfaces to operate in S- and X-bands. Effects of sheet resistance of the metasurfaces and thicknesses of dielectric supporting layers on reflection responses are investigated. An IR stealth layer incorporates an array of conductive grids with slits to reflect IR signals but to transmit RF signals and visible rays. Periodicity of the grids and slits is studied for transmission responses in the X-band and a surface area ratio. Reflection responses of the RF/IR multispectral absorber are found to be lower than -10 dB and -16 dB in the S- and X-bands, respectively, from full-wave simulation. Finally, the RF/IR multispectral absorber is fabricated and its reflection responses are measured to verify designed performance.

Keywords

Acknowledgement

이 연구는 LIG NEX1 산학협력 과제 지원으로 연구되었습니다.

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