RCS reduction by 1-bit coding metasurface

Mourad, Ali; Burgnies, Ludovic; Lheurette, Éric

doi:10.1109/cama49227.2021.9703561

Cited by 2 publications

(2 citation statements)

References 27 publications

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“…This binary coding system provides a convenient structure for iterative optimization approaches, such as genetic algorithms or particle swarm optimization (PSO). A similar design approach has been used in other studies, such as Ramachandran et al 19 to create multiple narrowband absorption peaks, Mourad et al 20 to reduce the radar cross section of a perfect electric conductor plate, or Zheng et al 9 to design a reconfigurable millimeter wave (MMW) antenna.…”

Section: Electromagnetic Characterizationmentioning

confidence: 99%

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Wideband millimeter wave absorber based on coding-metasurface with two-dimensional MXene

Brower,

DeLacy,

Garrett

et al. 2024

Opt. Eng.

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This study investigated MXene ink as the absorbing material in a wideband millimeter wave (MMW), metasurface absorber and applied the ink in a periodic array. The MXene ink was characterized in the Ka-band, and a Debye permittivity model was found that accurately described the highly frequency-dependent properties. A 1-bit coding-metasurface algorithm was used to discover an optimized design that minimized the average reflectance at normal incidence, utilizing the unique properties of the materials. The absorber was fabricated using hybrid processing techniques and measured at multiple incident angles to compare against the simulated design. The absorber demonstrated a wideband response (i.e., 14 GHz bandwidth) at normal incidence with a greater than 93% absorptance from 26 GHz to 40 GHz and an average reflectance of 2% over the entire band. Furthermore, the absorber tested at a 10-deg incident angle demonstrated a greater than 91% absorptance at the Ka-band and an average reflectance of 3.4% across the band; Tested at a 20-deg incident angle, the absorber demonstrated a greater than 88.5% absorptance and an average reflectance of 3.9% across the band. The study established the value of using MXene ink in metasurface absorbers for wideband applications in MMW frequencies.

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Section: Electromagnetic Characterizationmentioning

confidence: 99%

“…A similar design approach has been used in other studies, such as Ramachandran et al 19 . to create multiple narrowband absorption peaks, Mourad et al 20 . to reduce the radar cross section of a perfect electric conductor plate, or Zheng et al 9 .…”

Section: Coding-metasurface Designmentioning

confidence: 99%