Design and analysis of 2-bit matrix-type coding metasurface for stealth application

Yang, Jiaji; Li, Yinrui; Cheng, Yongzhi; Chen, Fu; Luo, Hui; Wang, Xian; Gong, Rongzhou

doi:10.1063/5.0009864

Cited by 21 publications

(7 citation statements)

References 32 publications

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“…In 2019, Al-Nuaimi et al [14] applied a chessboard-like patterned element to fabricate a 1-bit coding metasurface, which exhibited a radar-cross-section reduction (RCSR) of less than −10 dB in the 6-14 GHz frequency band. In 2020, Gong et al [15] proposed a 2-bit coding metasurface exhibiting a RCSR of less than −10 dB in the 8-16 GHz frequency band using split-circle patterned elements. In 2021, Qu et al [16] proposed a bifunctional chessboard coding metasurface containing I-shaped patterned elements.…”

Section: Introductionmentioning

confidence: 99%

A Highly Efficient Method for Designing Bisymmetric P‐B Phase Element Patterns of Coding Metasurfaces

Liu

Zhang

Wang

et al. 2023

Adv Materials Technologies

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The conventional trial-and-error method employed in the element pattern design of coding metasurfaces lacks theoretical guidance and requires considerable time and computational resources. To overcome this problem, this paper proposes a highly efficient design method for bisymmetric Pancharatnam-Berry (P-B) phase element patterns. First, the equivalent impedances of the element patterns are derived from the expected reflectance and frequency range using the transmission matrix method. Subsequently, the optimal geometric parameters of the element patterns are obtained using the equivalent circuit model. For the same element pattern, the time consumption is reduced by more than 25 times compared with that required for a single full-wave simulation. The simulation results show that metasurfaces adopting various design element patterns and the same coding sequence exhibit excellent backscattering energy homogenization performance, with a radar-cross-section reduction (RCSR) of less than −10 dB in the 9.47-17.57 GHz band. Two types of metasurfaces are fabricated using a meshed pattern, a sodium-calcium glass and a metallic mesh. The measured RCSR is less than −10 dB for a broadband of 7.74 GHz, and the normalized optical transmittance is 85% within 380-2500 nm, which is favorable for optical windows used in aerospace, medical, and precision instrumentation.

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Section: Introductionmentioning

confidence: 99%

A Highly Efficient Method for Designing Bisymmetric P‐B Phase Element Patterns of Coding Metasurfaces

Liu

Zhang

Wang

et al. 2023

Adv Materials Technologies

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“…In 2014, a concept of coding metasurface was firstly proposed by Cui et al, [16] which consist of several different types of coding elements with much different reflection phases, it can work as a reflective phased array antenna, and the array pattern can be represented by a coding sequence, so its far-field scattering pattern can be controlled by the predesigned coding sequence, and according to a proper coding sequence, the anticipated RCS reduction can be realized due to phase cancellation. In recent years, to realize wideband RCS reduction, a number of different coding metasurfaces have been proposed [17][18][19][20][21][22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

A 2-Bit Pancharatnam-Berry Coding Metasurface for Ultra-wideband and Polarization Insensitive RCS Reduction

et al. 2022

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Because Pancharatnam-Berry (PB) geometrical phase can only be generated in the co-polarized reflection coefficient under circular polarized (CP) incidence for a reflective metasurface, designing a reflective PB coding metasurface must be based on an appropriate polarization conversion metasurface (PCM), which can realize CPmaintaining reflection. In this work, to design a reflective 2dit PB coding metasurface for radar cross section (RCS) reduction, an ultra-wideband PCM is proposed at first, the simulated results show that the PCM can realize ultrawideband CP-maintaining reflection from 8.6 to 35.9 GHz; moreover, PB phase will be generated in its co-polarized reflection coefficient by rotating its unit structure. Thus based on the PCM, an ultra-wideband reflective 2-dit PB coding metasurface is constructed successfully. The simulation and experiment results show that the coding metasurface has excellent performance in RCS reduction under arbitrary polarized incidences, compared with a pure metallic plate with the same size, its RCS can be reduced more than 10dB in the frequency band 8.2-35.2GHz with a relative bandwidth of 124.4%.

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“…Radar absorbing materials (RAM) play an auxiliary role in the stealth for the shape structure, which can absorb the incident electromagnetic wave and convert it into other forms of energy attenuation. The RAM must have the characteristics of "thin", "wide", "light" and "strong" [4][5][6][7][8]. In addition, restricted by the working environment of aviation weapon components, it is necessary to develop new RAM which can adapt to the high temperature environment.…”

Section: Introductionmentioning

confidence: 99%

Design of An Ultra-Thin and Broadband Absorption Materials For Middle-Temperature Applications

Yao

Yang

Gao

et al. 2021

Preprint

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A radar absorbing material (RAM) is designed based on the magnetic ceramic and frequency selective surface (FSS). The phase composition and micromorphology were characterized, respectively. The complex permittivity and complex permeability of magnetic ceramic were tested and studied from 25 ℃ to 500 ℃ temperature. Based on the experimental and simulation results, the changes of reflection loss along with the structure parameters of RAM are analyzed at 500 ℃. The relationship of reflection loss varies with temperature are studied. The analytical results show that the absorption property of the RAM increases with the increase of temperature. An optimal absorption of RAM is obtained at 500℃. When the thickness of RAM is 1.5 mm, the reflection loss lower than -10 dB can be obtained in the frequency range from 8.2 ~ 16 GHz. More than 90% microwave energy can be consumed in the RAM which may be applied in the high temperature environment.

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Design and analysis of 2-bit matrix-type coding metasurface for stealth application

Cited by 21 publications

References 32 publications

A Highly Efficient Method for Designing Bisymmetric P‐B Phase Element Patterns of Coding Metasurfaces

A Highly Efficient Method for Designing Bisymmetric P‐B Phase Element Patterns of Coding Metasurfaces

A 2-Bit Pancharatnam-Berry Coding Metasurface for Ultra-wideband and Polarization Insensitive RCS Reduction

Design of An Ultra-Thin and Broadband Absorption Materials For Middle-Temperature Applications

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