Phased array simulators in waveguide for a triangular arrangement of elements

Balfour, M.

doi:10.1109/tap.1965.1138424

Cited by 19 publications

(2 citation statements)

References 3 publications

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“…All are for an array with element spacing 0.575l. Calculation of the beam angle is simple: For the near-broadside simulator, p ¼ 8 and Figure 15.12 (Balfour, 1965). The TE 10 mode is used in the 14, 34, and 578 H-plane simulators, while the TE 20 mode is used in the 408 H-plane model.…”

Section: Waveguide Simulatorsmentioning

confidence: 99%

Measurements and Tolerances

Hansen

2009

Phased Array Antennas

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Section: Waveguide Simulatorsmentioning

confidence: 99%

Measurements and Tolerances

Hansen

2009

Phased Array Antennas

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“…They studied circular patches periodically spaced and showed that the response inside a rectangular waveguide is equal to the one in free space for precise incidence angles. They also extended this concept to triangular waveguides [22]. Bielli et al [23] did some FSS characterizations in a waveguide to check the validity of the FSS model that they developed.…”

Section: Introductionmentioning

confidence: 99%

Characterization of frequency-selective surface spatial filters in a rectangular waveguide

Debarros

Lemaître-Auger²,

Menezes³

et al. 2012

Int. j. microw. wirel. technol.

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International audienceThe possibility to characterize infinite and periodic frequency-selective surfaces (FSS) filters that have two orthogonal axes of symmetry inside a waveguide is reported. Thus, preliminary measurements can rapidly be obtained at low cost with few elementary cells instead of using a large FSS panel in free space. This is possible because of the equivalence that exists between the electromagnetic fields of two symmetric and oblique plane waves incident on and reflected from an infinite periodic surface and the incident/reflected fields that exist inside a single-mode rectangular waveguide containing a finite number of elementary cells. Comparisons of the measurements with some full-wave simulations for FSS belonging to the first three groups as they were defined by Munk confirm the good agreement between them. This is an interesting and simple assessment tool concerning the fabrication quality of FSS. The extension of this technique to non-symmetric FSS patterns is also discussed and supported by experimental and simulation results. The limitations of the technique are finally discussed

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The Analysis of Circular Waveguide Phased Arrays*

Amitay¹,

Galindo²

1968

Bell System Technical Journal

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In this work, a planar phased array of circular waveguides arranged in an equilateral triangular grid is analyzed. The boundary value problem is first formulated rather generally in terms of a vector two dimensional integral equation for an array of elements that are arranged in a doubly periodic grid along two skewed (nonorthogonal) coordinates. Dielectric plugs, covers, and loading, as well as thin irises at the aperture, are accounted for in the formulation. Numerical solutions are obtained by using the Ritz‐Galerkin method to solve the integral equation. Excellent agreement with experimental measurements using a waveguide simulator is observed. The existence of forced surface wave phenomena in equilateral triangular grid arrays and their strong dependence upon the mode of excitation is also demonstrated. These phenomena are shown to exist at isolated points in the scan coordinates. Reflection characteristics as well as the polarization characteristics of the radiation pattern are illustrated at selected planes of scan for both linear and circular polarization excitation.

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Phased array simulators in waveguide for a triangular arrangement of elements

Cited by 19 publications

References 3 publications

Measurements and Tolerances

Measurements and Tolerances

Characterization of frequency-selective surface spatial filters in a rectangular waveguide

The Analysis of Circular Waveguide Phased Arrays*

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