Field Synthesis With Azimuthally Varying, Cascaded, Cylindrical Metasurfaces Using a Wave Matrix Approach

This paper characterizes a realistic feed for cylindrical metasurfaces, allowing it to be included in metasurface design. Specifically, it investigates a coaxial feed which is displaced from the center (off-center) of concentrically-cascaded cylindrical metasurfaces. Formulas are reported to quickly compute the multimodal S-matrix (scattering properties) of a displaced feed from that of the central feed. The theory is rigorously derived based on the addition theorem of Hankel functions for all azimuthal modes. Moreover, the resulting multimodal S-matrix is combined with the multimodal wave matrix theory used to model cylindrical metasurfaces, allowing devices to be designed that realize arbitrary field transformations from a displaced coaxial feed. A design example is reported, which opens new opportunities in the realization of realistic, high-performance cylindrical-metasurface-based devices.

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Field Synthesis With Azimuthally Varying, Cascaded, Cylindrical Metasurfaces Using a Wave Matrix Approach

Cited by 7 publications

References 33 publications

Electromagnetic Analysis of Anisotropic Impedance Spherical Metasurfaces

Electromagnetic Analysis of Anisotropic Impedance Spherical Metasurfaces

Field Scattering Analysis of Cylindrical Spatially Dispersive Metasurfaces

A Realistic Coaxial Feed for Cascaded Cylindrical Metasurfaces

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