Metasurface Design Using Electromagnetic Inversion
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.
Email Address of Submitting Authorumbrow47@myumanitoba.ca
ORCID of Submitting Authorhttps://orcid.org/0000-0001-7944-1260
Submitting Author's InstitutionUniversity of Manitoba
Submitting Author's Country