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Modeling of Metasheets Embedded in Dielectric Layers

Research output: Contribution to journalArticlepeer-review

Abstract

Metasheet structures together with bulk composite dielectric layers can be used for antenna radomes, absorbers, and band gap structures. Transmission (T) and reflection (Γ) coefficients for a plane wave incident at any angle upon a metasheet embedded in a dielectric layer are considered. These metasheets are either patch-type or an aperture-type, and they can be either single-layered or multi-layered. To calculate T and Γ for a patch-type metasheet, a concise unified matrix approach is derived using the Generalized Sheet Transition Conditions (GSTC). The Babinet duality principle is utilized to get T and Γ for single-layered aperture-type metasheets (as complementary to the patch-type ones) at an arbitrary angle of incidence. The T-matrix approach is applied to calculate characteristics of multilayered metasheet structures containing a cascade of metasheets and dielectric slabs. In this paper, the minimum distance for neglecting higher-order evanescent mode interactions between the metasheets has been determined. Computed results based on the proposed analytical approach are compared with the full-wave numerical simulations. The analytical results are verified for satisfying the energy balance condition.

Original languageAmerican English
JournalProgress In Electromagnetics Research B
DOIs
StatePublished - Jul 4 2012

Keywords

  • A-Plane
  • Analytical Approach
  • Analytical Results
  • Antenna Radomes
  • Arbitrary Angles
  • Band Gap Structure
  • Bulk Composites
  • Dielectric Layer
  • Dielectric Slabs
  • Duality Principle
  • Evanescent Mode
  • Matrix Approach
  • Minimum Distance
  • Multi-Layered
  • T-Matrix
  • Transition Conditions
  • Radiation
  • Condensed Matter Physics

Disciplines

  • Electrical and Computer Engineering

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