Subwavelength Guiding of Electromagnetic Energy in Waveguide Filled with Anisotropic Mu-Negative Metamaterial

Hrabar, Silvio; Zaluski, Davor

doi:10.1080/02726340802322536

Cited by 7 publications

(3 citation statements)

References 16 publications

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“…It is well-known [4] that split-ring resonator (SRR) may be interpreted as a small capacitivelyloaded loop antenna. At plasma frequency, this antenna causes zero-valued effective permeability in transversal direction.…”

Section: Unit Cell Based On Separated D and B Inclusionsmentioning

confidence: 99%

Practical aspects of DB metasurfaces- a brief review

Zaluski

Muha

Hrabar

2013

2013 IEEE Antennas and Propagation Society International Symposium (APSURSI)

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Section: Unit Cell Based On Separated D and B Inclusionsmentioning

confidence: 99%

Practical aspects of DB metasurfaces- a brief review

Zaluski

Muha

Hrabar

2013

2013 IEEE Antennas and Propagation Society International Symposium (APSURSI)

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“…That is, we would like to predict the reflection and transmission properties of a given metasurface, provided that surface susceptibilities are known. We start with expression (23), which can be written in reduced form as 11 21…”

Section: Fig 2 Te Polarized Electromagnetic Wave Incident Onmentioning

confidence: 99%

Analytical and experimental characterization of metasurfaces with normal polarizability

2016

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To date, research on metasurfaces has predominantly focused on those with polarizabilities that are tangent to the metasurface. A few theoretical works have characterized metasurfaces with normal polarizabilities. In fact, experimental extraction of the surface polarizabilities of such metasurfaces has not been reported to date. Here, we provide full analytical, numerical, and experimental characterizations of a metasurface that can be described with polarizabilities in all three spatial directions. First, a set of equations is derived that allows a surface distribution of scatterers to be replaced by a sheet boundary condition. It is shown that the extraction of unknown polarizabilities in the normal direction necessarily requires scattering parameters obtained from oblique incidence. Closed-form expressions that relate scattering parameters to surface susceptibilities in all three spatial directions are given. It is shown that the reflection and transmission properties of the metasurface can be predicted, for an arbitrary angle of incidence, from the sheet parameters. In addition, we report the experimental characterization of a metasurface with polarizabilities in the normal direction. The free-space measurements were performed on a recently proposed DB surface at 10 GHz. Experiments confirmed that the sheet parameters do not change with angle of incidence. Consequently, it was possible to extract surface susceptibilities in the normal direction from measured transmission parameters alone. PACS numbers: 81.05.Xj, 41.20.Jb st sz s st sz J J J z j z j z

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“…ENG, MNG, DNG) or 'plasma-like' (0<ε r <1, 0<μ r <1, i.e. ENZ, MNZ) metamaterials (ε r and μ r being relative permittivity and permeability, respectively) [5][6][7][8][9][10][11][12][13][14][15]. It would be very convenient if these metamaterials were dispersionless and, therefore, of broadband nature (Figure 1-2 (a)).…”

Section: Introductionmentioning

confidence: 99%