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Mostrando ítems 11-20 de 21
Artículo
Annular apertures in metallic screens as extraordinary transmission and frequency selective surface structures
(Institute of Electrical and Electronics Engineers, 2017)
A 2-D periodic array of annular apertures (or ring slots) is studied using an accurate circuit model. The model accounts for distributed and dynamic effects associated with the excitation of high-order modes operating above ...
Artículo
Wideband analytical equivalent circuit for one-dimensional periodic stacked arrays
(American Physical Society, 2016)
A wideband equivalent circuit is proposed for the accurate analysis of scattering from a set of stacked slit gratings illuminated by a plane wave with transverse magnetic or electric polarization that impinges normally or ...
Artículo
Analytical circuit model for 1-D periodic T-shaped corrugated surfaces
(Institute of Electrical and Electronics Engineers, 2014)
An analytical circuit model is obtained to study the reflection of TM polarized electromagnetic waves that impinge obliquely on a 1-D periodic corrugated surface consisting of dielectric-loaded T-shaped planar corrugations ...
Artículo
Resonant Modes of a Waveguide Iris Discontinuity: Interpretation in Terms of Canonical Circuits
(Institute of Electrical and Electronics Engineers, 2018)
This paper presents an eigenproblem for computing the resonances of multiresonant irislike discontinuities in waveguides. The formulation of the eigenproblem is based on integral equation methods, and its solution provides ...
Artículo
Quasi-analytical modeling of transmission/reflection in strip/slit gratings loaded with dielectric slabs
(Institute of Electrical and Electronics Engineers, 2012)
This paper presents a quasi-analytical approach to study the classic topic of transmission/reflection of electromagnetic waves through 1-D periodic arrays of strips/slits in metal screens. The approach is based on standard ...
Artículo
Planar Resonant Blazed Gratings from a Circuit Model Standpoint
(Institute of Electrical and Electronics Engineers, 2020)
The equivalent circuit approach (ECA) is used in this work to analyze and design a previously proposed one-dimensional planar blazed grating of the resonant type. The analysis covers both the classical Littrow configuration, ...
Artículo
Simplified circuit model for arrays of metallic dipoles sandwiched between dielectric slabs under arbitrary incidence
(Institute of Electrical and Electronics Engineers, 2012)
This work presents an equivalent circuit to model the transmission/ reflection of a plane wave that impinges obliquely on a periodic arrangement of metallic rectangular dipoles embedded between two dielectric slabs. The ...
Artículo
Excitation of Discrete and Continuous Spectrum in Subdiffraction Wire-Medium Type Lenses
(Institute of Electrical and Electronics Engineers, 2016)
Subwavelength imaging of the near field of a magnetic line-source excitation is studied for several wire-medium (WM) lens topologies using complex-plane analysis of the radiation integral. Nonlocal homogenization is used ...
Artículo
Dynamical Equivalent Circuit for 1-D Periodic Compound Gratings
(Institute of Electrical and Electronics Engineers, 2016)
Metallic compound gratings are studied in this work by means of an analytical equivalent circuit approach in order to obtain its transmission and reflection properties when illuminated by a TM-polarized plane wave. A ...
Artículo
Roadmap on metasurfaces
(IOP Publishing, 2019)
Metasurfaces are thin two-dimensional metamaterial layers that allow or inhibit the propagation of electromagnetic waves in desired directions. For example, metasurfaces have been demonstrated to produce unusual scattering ...