Asymptotic Solution of Scattering from Stratified Anisotropic Material Backed by Metal Surface

Rao, Zhen-Min; He, Siyuan; Zhang, Yunhua; Zhu, Guo‐Qiang

doi:10.1109/cemi.2018.8610541

2018 International Workshop on Computing, Electromagnetics, and Machine Intelligence (CEMi) 2018

DOI: 10.1109/cemi.2018.8610541

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Asymptotic Solution of Scattering from Stratified Anisotropic Material Backed by Metal Surface

Zhen-Min Rao

Siyuan He

Yunhua Zhang

et al.

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2024

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Research on the efficient EM modeling method from multilayered anisotropic medium-metal composite targets

Hua,

Rao,

et al. 2024

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The paper presents a high-frequency modeling approach tailored for the electromagnetic (EM) scattering characteristics from electrically large radar targets coated with multi-layered anisotropic mediums (MLAMs). The approach begins by deriving the plane-wave spectrum expression for the incident EM field within MLAMs. It then employs spectral domain full-wave analysis method (SDFWAM) to obtain an analytical representation of the scattering field, further leveraging saddle point evaluation (SPE) to derive asymptotic solutions in the spatial domain. By integrating principles of physical optics (PO) and the tangent plane approximation, the far-field scattering characteristics of target enveloped in the specified medium are efficiently delineated. Validations against standard structure and the Misty satellite model reveal the method's pronounced alignment with the method of moments – finite element method (MoM-FEM) hybrid numerical algorithm, underscoring its notable computational efficiency. Furthermore, in conjunction with scattering sources decomposition technique, the approach is applied to optimize the radar cross-section (RCS) of the Su-57 aircraft, achieving precise and intelligent RCS control at minimal material cost. In conclusion, this research offers pivotal technological and theoretical foundations for EM scattering prediction, stealth design, and performance assessment in radar target domains.

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Research on the efficient EM modeling method from multilayered anisotropic medium-metal composite targets

Hua,

Rao,

et al. 2024

Opt. Express

View full text Add to dashboard Cite

show abstract

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Asymptotic Solution of Scattering from Stratified Anisotropic Material Backed by Metal Surface

Cited by 1 publication

References 4 publications

Research on the efficient EM modeling method from multilayered anisotropic medium-metal composite targets

Research on the efficient EM modeling method from multilayered anisotropic medium-metal composite targets

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