Ultrawideband RCS Reduction Metasurface Based on Hybrid Mechanism of Absorption and Phase Cancellation

Su, Jianxun; Li, Wenyu; Qu, Meijun; Yu, Hang; Li, Zengrui; Qi, Kainan; Yin, Hongcheng

doi:10.1109/tap.2022.3184538

Cited by 35 publications

(10 citation statements)

References 30 publications

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“…In recent years, hybrid mechanism metasurfaces have also been intensively studied [22][23][24][25][26][27][28][29]. In [29] , Zhao et al proposed a hybrid mechanism metasurface.…”

Section: Lmentioning

confidence: 99%

A low-profile coding metasurface for broadband radar cross section reduction via beam diffusion and absorption

Zhou,

Yang,

Jin

et al. 2024

Phys. Scr.

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A low-profile coding metasurface based on beam diffusion and absorption is proposed, which can be applied for broadband Radar Cross Section (RCS) reduction. Through inserting resistors into the polarization conversion element, the proposed unit cell can convert a portion of the electromagnetic wave to ohmic loss as well as retain polarization conversion. Subsequently, the power loss and surface current were used to explain the mechanism of absorption and polarization conversion, and the arrangement of the elements was optimized using a simulated annealing algorithm. Furthermore, both the simulated and measured results have shown that the RCS reduction is greater than 10 dB at 6.7-19.3 GHz (96.9% relative bandwidth), and the metasurface still maintains great characteristics at 45° incidence.Thanks to the proposed metasurface offer advantages such as fewer resistors, a wider bandwidth for RCS reduction, an ultra-thin profile (0.066λL, where λL represents the longest wavelength), a stable incident angle, and a more uniform scattering of energy, it can be used in electromagnetic stealth for large targets.

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“…In recent years, hybrid mechanism metasurfaces have also been intensively studied [22][23][24][25][26][27][28][29]. In [29] , Zhao et al proposed a hybrid mechanism metasurface.…”

Section: Lmentioning

confidence: 99%

A low-profile coding metasurface for broadband radar cross section reduction via beam diffusion and absorption

Zhou,

Yang,

Jin

et al. 2024

Phys. Scr.

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“…5,6 Along with the quick development of metasurface itself, the research of its application in advanced microwave devices is also penetrating and has made some new progress for the past years. [7][8][9][10] One encouraging application of metasurfaces is radar cross section (RCS) reduction of antennas. In Yang et al 11 and Pazokian et al, 12 bandstop frequency selective surface is used as the ground of microstrip patch antenna and broadband RCS reduction is obtained.…”

Section: Introductionmentioning

confidence: 99%

“…Recent years have witnessed great progress of metasurface, especially since digital and coding metasurfaces are put forward in 2014 5,6 . Along with the quick development of metasurface itself, the research of its application in advanced microwave devices is also penetrating and has made some new progress for the past years 7–10 …”

Section: Introductionmentioning

confidence: 99%

Broadband low radar cross section antennas based on H‐shaped metasurface

Yang,

Li,

Gao

et al. 2024

Micro & Optical Tech Letters

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This paper presents a novel metasurface antenna element and a novel metasurface antenna array, both of which have broadband low radar cross section (RCS) performance. The antenna element is constructed by two kinds of H‐shaped metasurface unit cells. One kind of H‐shaped metasurface unit cells is properly fed to radiate, and the other unit cells are used to cancel the scattering field from the former. Thus, an integration of metasurface and antenna is performed and broadband low RCS is obtained. Furthermore, a H‐shaped metasurface antenna array is also proposed by deliberately introducing metallic vias for isolation. Both the proposed antenna element and the array have almost the same radiation performance with conventional patch antennas. Numerical calculations and experimental measurements are conducted. The results verify the effectiveness of the proposed novel antennas.

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“…To meet the diversified requirements of modern systems, some meta-surfaces of hybrid mechanisms [26][27][28][29][30][31] are proposed. Particularly, a two-loss-layer absorber combined absorption and phase elimination has been presented in [32] to achieve RCS reduction in the frequency range of 1.3-13 GHz [33] has good polarization insensitivity, which the monostatic RCS decreases from 7.6 GHz to 26.2 GHz and bistatic RCS suppression performance is obtained. Based on polarization conversion and destructive interference, a novel mono-layered MS is proposed in [34] for ultra-wideband RCS reduction for both co-polarization and cross polarization at 7.5-22.5 GHz.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable water-based metamaterial with hybrid mechanism for backward-scattering reduction

Li,

Ding,

Yang

et al. 2024

J. Phys. D: Appl. Phys.

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A hybrid mechanism water-based metamaterial (HMWM) with polarization conversion, absorption and phase cancellation mechanisms is proposed in this paper. The absorption and polarization conversion mechanisms are integrated by combining the water layer with polarization conversion structure, and the absorption conversion rate (ACR) reaches more than 90% in the dual band (4.0-4.7 GHz and 8.2-15.7 GHz). Based on the above mechanism, the phase cancellation mechanism makes use of the opposite phase between HMWM and its mirror structure for checkerboard configuration to reduce the wideband radar cross section (RCS) by 3-18 GHz, achieving wide-angle RCS reduction and polarization insensitivity. In addition, the model realizes stealth control by adjusting RCS reduction capability under different water layer conditions. The results of simulation and experiment agree well, which fully demonstrates that the HMWM has scattering suppression capability and has potential application in multifunctional metamaterial.

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Ultrawideband RCS Reduction Metasurface Based on Hybrid Mechanism of Absorption and Phase Cancellation

Cited by 35 publications

References 30 publications

A low-profile coding metasurface for broadband radar cross section reduction via beam diffusion and absorption

A low-profile coding metasurface for broadband radar cross section reduction via beam diffusion and absorption

Broadband low radar cross section antennas based on H‐shaped metasurface

Reconfigurable water-based metamaterial with hybrid mechanism for backward-scattering reduction

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