Synthesis of Spherical Metasurfaces based on Susceptibility Tensor GSTCs
Xiao Jia, Yousef Vahabzadeh, Fan Yang, Christophe Caloz
TL;DR
This paper extends the susceptibility-GSTC synthesis method from planar to spherical metasurfaces, highlighting curvature effects and demonstrating novel transformations through three examples.
Contribution
It introduces a method for designing spherical metasurfaces using susceptibility-GSTCs, accounting for curvature and enabling complex electromagnetic transformations.
Findings
Validated the spherical susceptibility-GSTC method with three examples
Demonstrated exotic properties like illusion transformation and birefringence
Highlighted effects of intrinsic curvature on metasurface properties
Abstract
The bianisotropic susceptibility Generalized Sheet Transition Conditions (GSTCs) synthesis method is extended from planar to spherical metasurfaces. Properties specific to the non-zero intrinsic curvature of the spherical shape are highlighted and different types of corresponding transformations are described. Finally, the susceptibility-GSTC method and exotic properties of spherical metasurfaces are validated and illustrated with three examples: illusion transformation, ring focusing and birefringence.
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Taxonomy
TopicsAdvanced Antenna and Metasurface Technologies · Metamaterials and Metasurfaces Applications · Radio Wave Propagation Studies