Analysis of waveguide discontinuities using edge elements in a hybrid mode matching/finite elements approach

Arena, D.; Ludovico, M.; Manara, Giuliano; Monorchio, Agostino

doi:10.1109/7260.950767

Cited by 30 publications

(17 citation statements)

References 14 publications

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“…In comparison to alternative methods [13][14][15][16][17][18][19][20][21] the presented approach allows one to analyze scattering from arbitrary set of cylindrical objects which can be located both in free space or in waveguide junctions. At first, in our approach each single object is considered separately in its local coordinate system.…”

Section: Introductionmentioning

confidence: 99%

“…Since, in considered problems objects with arbitrary shape are assumed, the most powerful techniques of analysis are hybrid methods [13][14][15][16][17][18][19][20][21]. In these method the discrete techniques such as finite element method (FEM) [13][14][15], finite-difference time domain method (FDTD) [16][17][18] or frequency domain (FDFD) [19] methods and method of moments (MoM) [18,20,21] are used in limited region surrounding the analyzed structure.…”

Section: Introductionmentioning

confidence: 99%

“…In these method the discrete techniques such as finite element method (FEM) [13][14][15], finite-difference time domain method (FDTD) [16][17][18] or frequency domain (FDFD) [19] methods and method of moments (MoM) [18,20,21] are used in limited region surrounding the analyzed structure. In the outer region the fields are combined with analytical solution of the problem using e.g., integral equation technique [15,17] for open structures or general scattering matrix (GSM) approach for closed problems [13,20,21]. As a result, the hybrid techniques allows one to achieve higher flexibility, increase the accuracy and reduce the numerical complexity of the analysis.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of Scattering From Arbitrary Configuration of Cylindrical Objects Using Hybrid Finite-Difference Mode-Matching Method

Kusiek¹,

Mazur²

2009

PIER

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Abstract-This paper presents a new hybrid finite-difference frequency domain -mode-matching method (FDFD-MM) for the analysis of electromagnetic wave scattering from configuration of metallic or dielectric cylindrical posts with arbitrary cross-section. In our approach each scatterer is treated as an effective circular cylinder represented by impedance matrix defined in its local coordinate system. In order to obtain the scattering parameters of arbitrary configuration of objects in global coordinate system an analytical iterative scattering procedure (ISP) is applied. This work is an extension of our previously published results, where our consideration were limited to two dimensional (2D) problems with TM excitation. In this paper, we extended our analysis to two-and-a-half dimensional (2.5D) problems. The accuracy of the proposed method is presented and discussed. To verify our approach some numerical examples are presented. The obtained results are compared with the results published in literature and the ones obtained from own measurements and commercial software.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of Scattering From Arbitrary Configuration of Cylindrical Objects Using Hybrid Finite-Difference Mode-Matching Method

Kusiek¹,

Mazur²

2009

PIER

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“…Nevertheless, these techniques require important CPU time and memory storage. To alleviate these drawbacks, several hybrid methods that combine modal and space meshing methods such like hybrid FEM-MM have been proposed for waveguide problems [6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Complex Rectangular Filter Design Using Hybrid Finite Element Method and Modified Multimodal Variational Formulation

Yahia¹,

Tao²,

Sakli³

2013

PIER C

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Abstract-We hybridize vector Finite Element Method (FEM) and a Modified Multimodal Variational Formulation (MMVF) to the accurate and fast design of complex isotropic rectangular filters. The MMVF is applied to the full-wave description in the rectangular waveguides while the FEM characterizes waves in the arbitrarily shaped discontinuities. The proposed hybrid method is applied to the full-wave analysis of circuits with great practical interest (i.e., cross-shaped iris and multimode filters), thus improving CPU time and memory storage against several full-wave FEM based Computer Aided Design (CAD) tools (i.e., HFSS High Frequency Structural Simulator). The performances of the proposed hybrid method are validated with experimental results and HFSS simulations.

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“…The combination of finite element and mode matching techniques (FE-MM) [30] to solve waveguide scattering problems is very popular. The finite element method and mode matching are very effective together for the scatterer in waveguide problems.…”

Section: Finite Element-mode Matching Methodsmentioning

confidence: 99%

Application of extended Huygens' principle to scattering discontinuities in waveguide

Geschke

Ferrari²,

Davidson³

et al.

IEEE AFRICON. 6th Africon Conference in Africa,

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DeclarationI, the undersigned, hereby declare that the work contained in this dissertation is my own original work, unless stated otherwise, and it has not previously in its entirety or in part been submitted at any university for a degree.Stellenbosch University http://scholar.sun.ac.za AbstractThe implementation and verification of a recently proposed Huy gens' principle in hollow lossless waveguide is described. The extended Huygens' principle is applicable to the scattering effect of arbitrary obstacles in waveguide and allows the coupling

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Analysis of waveguide discontinuities using edge elements in a hybrid mode matching/finite elements approach

Cited by 30 publications

References 14 publications

Analysis of Scattering From Arbitrary Configuration of Cylindrical Objects Using Hybrid Finite-Difference Mode-Matching Method

Analysis of Scattering From Arbitrary Configuration of Cylindrical Objects Using Hybrid Finite-Difference Mode-Matching Method

Complex Rectangular Filter Design Using Hybrid Finite Element Method and Modified Multimodal Variational Formulation

Application of extended Huygens' principle to scattering discontinuities in waveguide

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