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

Skobelev, Sergei P.; Kildal, Per-Simon

doi:10.2528/pier09122305

Cited by 6 publications

(3 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Between the first and the second mode, the propagation perpendicular to the corrugations is not possible, and therefore, this region is typically employed to reject (or filter) the electromagnetic waves in a given band of frequencies [22,23]. Contrary to this configuration, the same corrugations, when oriented in the perpendicular direction, enhance the propagation of quasi-TEM modes, and are known as "hard surfaces" [21,24].…”

Section: Waveguide Below a Homogeneous Substratementioning

confidence: 99%

Controlled Radiation From Dielectric Slabs Over Spoof Surface Plasmon Waveguides

Quevedo–Teruel¹

2013

PIER

View full text Add to dashboard Cite

Abstract-The radiation characteristics of dielectric slabs over a transmission waveguide, based on the concept of spoof surface plasmons, are studied in this paper. The proposed structure can be used to control the radiation over a wide band of operation, whilst retaining low Side Lobe Levels (SLLs) and cross-polarization. Leaky modes, broadside radiation and directive beams at fixed angles can all be obtained using various configurations (utilising homogeneous or gradient index dielectric slabs). The proposed antenna design has attractive performance for THz detectors and transmitters.

show abstract

Section: Waveguide Below a Homogeneous Substratementioning

confidence: 99%

Controlled Radiation From Dielectric Slabs Over Spoof Surface Plasmon Waveguides

Quevedo–Teruel¹

2013

PIER

View full text Add to dashboard Cite

show abstract

“…Analytical calculation may not be possible or may be difficult in general, however, a simple numerical integration method can be applied for an arbitrary ρ 1 (ϕ). Finally, we expand linear combinations of U matrices with appropriate weights which are the elements of Φ matrices to fill out the matrices A and B in (9). The aforementioned procedure implies that the matrices A and B can be filled in a very fast manner.…”

Section: Homogeneous Waveguidesmentioning

confidence: 99%

A Higher Order Analysis of a Class of Inhomogeneously Filled Conducting Waveguides

Khodapanah

Nikmehr²

2011

PIER

View full text Add to dashboard Cite

Abstract-A higher order analysis is applied to solve the problem of a class of inhomogeneously-filled conducting waveguides. This includes an arbitrary but smooth hollow conducting waveguides and waveguides filled with layered inhomogeneous materials. The method employs a set of spline-harmonic basis functions and leads to one-dimensional integrals for system matrix elements. This fact along with the higher order nature of the basis functions provides an accurate method for the analysis of the aforementioned waveguides. The accuracy and the convergence behavior of the method are studied through several numerical examples and the results are compared with the exact solutions and with the results of Ansoft HFSS simulator to establish the validity of the proposed method.

show abstract

“…Therefore, the demand of low losses and cheap to manufacture waveguides is still a challenge, especially above 30 GHz. In [1][2][3][4][5][6][7][8][9], a basic geometry has been investigated, namely a ridge waveguide comprising two parallel conducting surfaces separated by a small gap. One of the surfaces is provided with metallic pins, and it is known as "bed of nails".…”

Section: Introductionmentioning

confidence: 99%

Analytical Dispersion Characteristic of a Gap-Groove Waveguide

Polemi¹,

Rajo‐Iglesias²,

Maci³

2011

PIER M

View full text Add to dashboard Cite

Abstract-A new type of waveguide based on the gap waveguide concept is here proposed and called gap-groove waveguide. Its design is based on the realization of a groove on a metal, facing an artificial surface which creates a high impedance surface (HIS) boundary condition. This condition is achieved here by employing a structure of closely packed metallic pins, known as bed of nails. The type of modes that can propagate in the gap-groove waveguide are similar to the ones of a standard waveguide but in this case there is no need of electrical connection. This is a potential advantage, especially when working at high frequencies. The dispersion characteristic of the gap-groove waveguide is derived by solving an eigenvalue problem, settled through a resonance condition at the interface between the groove and the bed of nails. The eigenvalues are associated with the modes propagating in the waveguide, and their dispersion characteristic is analyzed and compared with full wave simulations. A procedure to maximize the bandwidth is also provided, based on an appropriate choice of the geometrical parameters. Furthermore, the field distribution and the modal impedance of the fundamental mode are investigated.

show abstract

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

Cited by 6 publications

References 22 publications

Controlled Radiation From Dielectric Slabs Over Spoof Surface Plasmon Waveguides

Controlled Radiation From Dielectric Slabs Over Spoof Surface Plasmon Waveguides

A Higher Order Analysis of a Class of Inhomogeneously Filled Conducting Waveguides

Analytical Dispersion Characteristic of a Gap-Groove Waveguide

Contact Info

Product

Resources

About