Modal solutions in dual-depth longitudinally corrugated hard waveguide

Skobelev, Sergei P.; Kildal, Per-Simon

doi:10.1049/iet-map:20060051

Cited by 2 publications

(2 citation statements)

References 16 publications

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“…Electromagnetic scattering from a circular aperture in a conducting plane has been studied extensively for its applications in aperture coupled structures, aperture antennas and electromagnetic interference and compatibility [1][2][3]. It is also well-known that corrugated structures can be used to obtain hard or soft surfaces artificially [4][5][6][7]. Recently, there have been substantial efforts to investigate the extraordinary optical transmission [8][9][10][11][12][13][14][15][16] and angular confinement of radiated fields [17][18][19][20] associated with leaky surface-plasmon theory [21,22].…”

Section: Introductionmentioning

confidence: 99%

Extraordinary electromagnetic transmission through a circular aperture surrounded by surface corrugations

Kim

Park

et al. 2014

IET Microwaves, Antennas & Propagation

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The authors investigate extraordinary electromagnetic transmission through a circular aperture surrounded by surface corrugations. An electromagnetic boundary-value problem of a circular aperture surrounded by surface corrugations in a conducting plane is solved based on the mode matching method. The eigenfunction expansion and Hankel transform are used to represent the scattered fields in terms of the discrete and continuous modes, respectively. The boundary conditions are enforced to obtain a set of simultaneous equations. The transmission coefficient and the radiated fields are represented in a fast-convergent series. Computation is performed to illustrate the behaviours of transmission and radiation against the corrugation geometries. The effects of the corrugation geometries on the extraordinary electromagnetic transmission are discussed.

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Section: Introductionmentioning

confidence: 99%

Extraordinary electromagnetic transmission through a circular aperture surrounded by surface corrugations

Kim

Park

et al. 2014

IET Microwaves, Antennas & Propagation

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“…The concept of artificial electromagnetic hard and soft surfaces or walls [1,2], that can be realized by corrugations with grooves filled with dielectric or by strips on a grounded dielectric layer, find important applications in design of conical horn antennas [3][4][5][6][7][8] and pyramidal horn antennas [9][10][11]. The studies of the hard and soft surfaces in [12] and [13] also show that they can support wave propagation along the grooves or strips and prohibit wave propagation across them.…”

Section: Introductionmentioning

confidence: 99%

A New Type of the Quasi-Tem Eigenmodes in a Rectangular Waveguide With One Corrugated Hard Wall

Skobelev¹,

Kildal²

2010

PIER

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Abstract-The problem of determining the eigenmodes of a rectangular waveguide with one hard wall formed by longitudinal corrugations with grooves filled with dielectric is considered. The characteristic equation is derived by using the asymptotic boundary conditions for corrugated surfaces. It is shown analytically that if the groove depth is equal to the value 0.25λ/(ε − 1) 1/2 corresponding to the hard wall condition, the TE eigenmode spectrum of the waveguide contains an infinite set of new non-uniform quasi-TEM modes with different transverse propagation constants in the empty part and identical longitudinal propagation constants equal to the wavenumber k. Analytical solution for the case of excitation of the waveguide by a specified source is given, and an example of forming local quasi-TEM waves is considered and discussed.

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Modal solutions in dual-depth longitudinally corrugated hard waveguide

Cited by 2 publications

References 16 publications

Extraordinary electromagnetic transmission through a circular aperture surrounded by surface corrugations

Extraordinary electromagnetic transmission through a circular aperture surrounded by surface corrugations

A New Type of the Quasi-Tem Eigenmodes in a Rectangular Waveguide With One Corrugated Hard Wall

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