旋转对称陀螺热带包覆阻抗球的电磁散射

IF 5.8 1区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Antennas and Propagation Pub Date : 2025-03-10 DOI:10.1109/TAP.2025.3547723

Tazeen Shaikh;Bratin Ghosh;Kamal Sarabandi

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引用次数: 0

摘要

这项工作提出了一个覆盖有旋转对称回转体层的阻抗球的全波研究，显示出电和磁回转体。提出了一种基于球谐场模态分解的公式。通过将回转体层的切向场分量与阻抗面匹配，将回转体层与自由空间界面匹配来计算散射场。然后进行了广泛的参数研究，以评估散射特性随表面阻抗和每个张量陀螺仪参数的变化。结果表明，波纹、低RCS区域和散射特性的变化与配置的电气和结构参数有关，为减小和控制RCS提供了有价值的指导。

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Electromagnetic Scattering by a Rotationally Symmetric Gyrotropic-Coated Impedance Sphere

The work presents a full-wave investigation of an impedance sphere coated with a rotationally symmetric gyrotropic layer, exhibiting both electric and magnetic gyrotropies. A formulation based on the modal decomposition of fields in terms of spherical harmonics is presented. The scattered field is evaluated by matching the tangential field components at the gyrotropic layer to the impedance surface and the gyrotropic layer to free space interfaces. An extensive parametric investigation is thereafter carried out to evaluate the scattering characteristics with variation in the surface impedance and each of the tensorial gyrotropic parameters. The results show the dependence of the ripples, low RCS regions, and variation in scattering characteristics on the electrical and structural parameters of the configuration and provide valuable guidelines for the reduction and control of RCS.

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来源期刊

IEEE Transactions on Antennas and Propagation 工程技术-电信学

CiteScore

10.40

自引率

28.10%

发文量

968

审稿时长

4.7 months

期刊介绍： IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques