Design and Optimization of 3D Meta-Volumes for Complementary Phases Enabling Wide Field of View RCS Reduction

Chaky, Ryan J.; Beneck, Ryan J.; Campbell, Sawyer D.; Werner, Pingjuan L.; Werner, Douglas H.

doi:10.1109/ap-s/usnc-ursi47032.2022.9886476

Cited by 1 publication

(1 citation statement)

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“…Further bandwidth extension has been developed by using a variety of element types in the periodic structure [9] or by increasing the number of partial surfaces consisted different types of elements [10], [11]. Expansion of the angular coverage of the reduction has also been developed by optimizing element placement [12]- [14] and by using elements with a three-dimensional structure [15], [16].…”

Section: Introductionmentioning

confidence: 99%

Design and Fabrication of a Metasurface for Bandwidth Enhancement of RCS Reduction Based on Scattering Cancellation

SUENOBU,

YAMAMOTO,

TAKIKAWA

et al. 2024

IEICE Trans. Electron.

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A method for bandwidth enhancement of radar cross section (RCS) reduction by metasurfaces was studied. Scattering cancellation is one of common methods for reducing RCS of target scatterers. It occurs when the wave scattered by the target scatterer and the wave scattered by the canceling scatterer are the same amplitude and opposite phase. Since bandwidth of scattering cancellation is usually narrow, we proposed the bandwidth enhancement method using metasurfaces, which can control the frequency dependence of the scattering phase. We designed and fabricated a metasurface composed of a patch array on a grounded dielectric substrate. Numerical and experimental evaluations confirmed that the metasurface enhances the bandwidth of 10dB RCS reduction by 52% bandwidth ratio of the metasurface from 34% bandwidth ratio of metallic cancelling scatterers.

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