Sidewall inclined slot in a rectangular waveguide: Theory and experiment

Prakash, V.V.S.; Christopher, S.; Balakrishnan, N.

doi:10.1049/ip-map:19981956

Cited by 7 publications

(3 citation statements)

References 3 publications

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“…Near resonance, the phase of the electric field along the slot length has been observed to be fairly constant, so the phase of the slot electric field is approximated by the phase at the slot center. The reaction between a source basis and function field basis function in the infinite array model is computed as (12) To help distinguish which model the different reactions are from, a superscript indicates the original infinite array model, a prime indicates the periodic boundary wall model, and no superscript indicates the isolated slot model. The terms and in (12) are those from the isolated slot model and are given in (10).…”

Section: Infinite Array Slot Analysismentioning

confidence: 99%

“…An excellent overview of the S2DS method applied to scattering problems is given in [7], and a detailed discussion of the use of the electric field integral equation in the S2DS method is found in [8]. The S2DS method is used to treat several types of transverse edge slot antennas in [9]- [11] Another hybrid method that combines a spectral domain method, moment method, and the finite difference method to analyze a single edge slot is presented by Prakash et al in [12], and then extended to full array analysis in [13]. It is noted that the spectral-domain method used to rigorously incorporate the external waveguide structure in [12] and [13] is based on a finite difference method, whereas the spectral-domain method used in the present paper is based on an integral equation method.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of a Rectangular Waveguide, Edge Slot Array With Finite Wall Thickness

Young

Hirokawa

Ando

2007

IEEE Trans. Antennas Propagat.

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A method to analyze a one-dimensional array comprising tilted edge slots cut in the narrow wall of a rectangular waveguide is presented. The fields in the slots are calculated from a hybrid finite element-boundary integral (FE-BI) equation method. The boundary surface integrals on both the interior and exterior surface of the slots are computed from a spectrum of two-dimensional solutions (S2DS), which allows the influence of both the interior and exterior structure of the waveguide to be included rigorously. For initial array design, the mutual coupling between slots in the exterior region is treated approximately with an infinite array assumption modeled by two slots surrounded by periodic boundary walls with an imposed linear phase progression. A short, finite slot array is designed based on the infinite array assumption and fabricated. Results from full-wave analysis of the array and measurements are presented. Index Terms-Edge slot, finite element-boundary integral (FE-BI), spectrum of two-dimensional solutions (S2DS).

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Section: Infinite Array Slot Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of a Rectangular Waveguide, Edge Slot Array With Finite Wall Thickness

Young

Hirokawa

Ando

2007

IEEE Trans. Antennas Propagat.

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“…The edge slots have been investigated with various methods [6][7][8][9][10][11][12][13][14][15]. Hashemi-Yeganeh and Elliott [16] analyzed untilted edge slots excited by tilted wires in a rectangular waveguide.…”

Section: Introductionmentioning

confidence: 99%

Analysis of an Inclined Semi-Circular Slot in the Narrow Wall of a Rectangular Waveguide

Ghafoorzadeh¹,

Forooraghi²

2009

PIER

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Abstract-An inclined semi-circular slot cut in the narrow wall of a rectangular waveguide has been analyzed. By enforcing the boundary condition of continuity of the tangential magnetic field at the slot aperture, an integral equation with the aperture electric field as the unknown has been obtained and solved by the method of moments (MoM). The equivalent slot admittance is then determined. Different slot parameters, such as scattering coefficients, normalized resonant conductance, resonant length versus tilt angle, and radiation patterns, have been studied. The results obtained by the MoM have been verified by comparing them against those results obtained with HFSS.

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Reducing resonant length of sidewall‐inclined slots in a rectangular waveguide

Heidari

Forooraghi

Hakkak

2003

Micro & Optical Tech Letters

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In this paper, the admittance characteristics of a dielectric filled inclined slot in the narrow wall of a rectangular waveguide have been calculated. By enforcing the continuity of the tangential magnetic field through the slot aperture, an integral equation with the tangential electric field in the slot as the unknown is obtained. An entire domain method of moments (MoM) is used to solve the integral equation. Numerical results show that the slot can resonate without penetrating onto the top and bottom broad walls of the waveguide. It has also been shown that the resonant frequency (length) and the resonant conductance of the slot depend on the dielectric constant of the material filling the slot. The computed results are shown to be in good agreement with those obtained by HP‐HFSS. © 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 37: 222–226, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.10876

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Sidewall inclined slot in a rectangular waveguide: Theory and experiment

Cited by 7 publications

References 3 publications

Analysis of a Rectangular Waveguide, Edge Slot Array With Finite Wall Thickness

Analysis of a Rectangular Waveguide, Edge Slot Array With Finite Wall Thickness

Analysis of an Inclined Semi-Circular Slot in the Narrow Wall of a Rectangular Waveguide

Reducing resonant length of sidewall‐inclined slots in a rectangular waveguide

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