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Metasurface Design Using Electromagnetic Inversion
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  • Trevor Brown ,
  • Chaitanya Narendra ,
  • Yousef Vahabzadeh ,
  • Christophe Caloz ,
  • Puyan Mojabi
Trevor Brown
University of Manitoba

Corresponding Author:[email protected]

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Chaitanya Narendra
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Yousef Vahabzadeh
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Christophe Caloz
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Puyan Mojabi
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Abstract

This paper summarizes and synthetically evaluates a method proposed for metasurface design. The method takes as input a set of desired far-field (FF) performance specifications and produces an effective susceptibility distribution that, when illuminated with a known incident field, produces a FF radiation pattern exhibiting the desired specifications. To this end, electromagnetic inversion (inverse source) is used to solve for the desired tangential fields on the output side of the metasurface. A finite-difference frequency-domain solver, recently developed for simulation of metasurfaces, is used to synthetically evaluate the proposed method using a two-dimensional (2D) example. It should be noted that microscopic metasurface design (i.e., the design of the physical metasurface implementation) is beyond the scope of this paper.