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Metasurface Design Using Electromagnetic Inversion

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posted on 05.02.2020 by Trevor Brown, Chaitanya Narendra, Yousef Vahabzadeh, Christophe Caloz, Puyan Mojabi

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.

History

Email Address of Submitting Author

umbrow47@myumanitoba.ca

ORCID of Submitting Author

https://orcid.org/0000-0001-7944-1260

Submitting Author's Institution

University of Manitoba

Submitting Author's Country

Canada

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