Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Generalized Sheet Transition Conditions (GSTCs) for a Metascreen

Published

Author(s)

Christopher L. Holloway

Abstract

Using the multiple-scales homogenization method, we derive generalized sheet transition conditions (GSTCs) for electromagnetic fields at the surface of a metascreen---a metasurface with a ``fishnet'' structure. These surfaces are characterized by periodically spaced apertures in an otherwise relatively impenetrable surface. The apertures that compose the metascreen are of arbitrary shape and are embedded between two different magneto-dielectric media. The parameters in these GSTCs are interpreted as effective surface susceptibilities and surface porosities, which themselves are related to the geometry of the apertures that constitute the metascreen. Finally, we compare and contrast the important, but subdual, difference in the GSTCs required for metascreens to those required for a metafilms (where metafilms have a ``cermet'' structure, which refers to an array of isolated (non-touching) scatterers).
Citation
IEEE Transactions on Antennas and Propagation
Volume
66
Issue
5

Keywords

boundary conditions, generalized sheet transition conditions (GSTC), homogenization, interface conditions, magneto-dielectric, metafilms, metamaterials, metascreens, metasurfaces, multiple- scale techniques, surface susceptibilities, surface porosities

Citation

Holloway, C. (2018), Generalized Sheet Transition Conditions (GSTCs) for a Metascreen, IEEE Transactions on Antennas and Propagation, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=924091 (Accessed June 25, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created May 1, 2018, Updated March 7, 2019