Exact Solution for Conversion of Surface Waves to Space Waves by Periodical Impenetrable Metasurfaces

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Exact Solution for Conversion of Surface Waves to Space Waves by Periodical Impenetrable Metasurfaces. / Tcvetkova, Svetlana N.; MacI, Stefano; Tretyakov, Sergei A.

julkaisussa: IEEE Transactions on Antennas and Propagation, Vuosikerta 67, Nro 5, 8633967, 01.05.2019, s. 3200-3207.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

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Bibtex - Lataa

@article{3f1a097092ed409a9e5c5808c4850f8e,
title = "Exact Solution for Conversion of Surface Waves to Space Waves by Periodical Impenetrable Metasurfaces",
abstract = "We show that there exists an exact solution for a lossless and reciprocal periodic surface impedance which ensures full conversion of a single-mode surface wave propagating along the impedance boundary to a single plane wave propagating along the desired direction in free space above the boundary. In contrast to known realizations of leaky-wave antennas, the optimal surface reactance modulation that is found here ensures the absence of evanescent higher order modes of the Floquet wave expansion of fields near the radiating surface. Thus, all the energy carried by the surface wave is used for launching the single inhomogeneous plane wave into space, without the accumulation of reactive energy in higher order modes. The results of the study are expected to be useful for the creation of leaky-wave antennas with the ultimate efficiency and, moreover, can potentially lead to novel applications, from microwaves to nanophotonics.",
keywords = "Boundary conditions, leaky-wave antennas, metasurfaces, surface impedance, surface waves",
author = "Tcvetkova, {Svetlana N.} and Stefano MacI and Tretyakov, {Sergei A.}",
year = "2019",
month = "5",
day = "1",
doi = "10.1109/TAP.2019.2896765",
language = "English",
volume = "67",
pages = "3200--3207",
journal = "IEEE Transactions on Antennas & Propagation",
issn = "0018-926X",
number = "5",

}

RIS - Lataa

TY - JOUR

T1 - Exact Solution for Conversion of Surface Waves to Space Waves by Periodical Impenetrable Metasurfaces

AU - Tcvetkova, Svetlana N.

AU - MacI, Stefano

AU - Tretyakov, Sergei A.

PY - 2019/5/1

Y1 - 2019/5/1

N2 - We show that there exists an exact solution for a lossless and reciprocal periodic surface impedance which ensures full conversion of a single-mode surface wave propagating along the impedance boundary to a single plane wave propagating along the desired direction in free space above the boundary. In contrast to known realizations of leaky-wave antennas, the optimal surface reactance modulation that is found here ensures the absence of evanescent higher order modes of the Floquet wave expansion of fields near the radiating surface. Thus, all the energy carried by the surface wave is used for launching the single inhomogeneous plane wave into space, without the accumulation of reactive energy in higher order modes. The results of the study are expected to be useful for the creation of leaky-wave antennas with the ultimate efficiency and, moreover, can potentially lead to novel applications, from microwaves to nanophotonics.

AB - We show that there exists an exact solution for a lossless and reciprocal periodic surface impedance which ensures full conversion of a single-mode surface wave propagating along the impedance boundary to a single plane wave propagating along the desired direction in free space above the boundary. In contrast to known realizations of leaky-wave antennas, the optimal surface reactance modulation that is found here ensures the absence of evanescent higher order modes of the Floquet wave expansion of fields near the radiating surface. Thus, all the energy carried by the surface wave is used for launching the single inhomogeneous plane wave into space, without the accumulation of reactive energy in higher order modes. The results of the study are expected to be useful for the creation of leaky-wave antennas with the ultimate efficiency and, moreover, can potentially lead to novel applications, from microwaves to nanophotonics.

KW - Boundary conditions

KW - leaky-wave antennas

KW - metasurfaces

KW - surface impedance

KW - surface waves

UR - http://www.scopus.com/inward/record.url?scp=85065414804&partnerID=8YFLogxK

U2 - 10.1109/TAP.2019.2896765

DO - 10.1109/TAP.2019.2896765

M3 - Article

VL - 67

SP - 3200

EP - 3207

JO - IEEE Transactions on Antennas & Propagation

JF - IEEE Transactions on Antennas & Propagation

SN - 0018-926X

IS - 5

M1 - 8633967

ER -

ID: 33938466