A new computationally efficient hybrid fdtLM–WCIP method

Glaoui, Mohamed; Trabelsi, H.; Zairi, Hassen; Gharsallah, Ali; Baudrand, H.

doi:10.1080/00207210902738059

International Journal of Electronics

2009

DOI: 10.1080/00207210902738059

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A new computationally efficient hybrid fdtLM–WCIP method

Mohamed Glaoui

H. Trabelsi

Hassen Zairi

et al.

Abstract: This article presents a new hybrid technique which combines two different numerical methods in the frequency domain, namely the Frequency Domain Transmission Line Matrix (FDTLM) and the Wave Concept Iterative Process, to analyse three-dimensional (3D) microwave structures. As a result, a considerable reduction of the computation time and required computer memory is achieved compared with the classic FDTLM. The good agreement between simulation results and experimental published data validates the present analy… Show more

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Cited by 3 publications

References 15 publications

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2d FDTLM Hybridization With Modal Method

Girard¹,

Zugari²,

Raveu³

2013

PIER B

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This article focuses on the 2D hybrid technique between the Frequency Domain Transmission Line Matrix Method (FDTLM) and the Wave Concept Iterative Procedure (WCIP). 3D hybridization has already been studied, but results may be improved through a better knowledge of method order. Consequently, developing 2D hybridization aims at understanding the hybridization in simplest problems, especially because Transverse Electric (TE) and Transverse Magnetic (TM) are uncoupled. Our study dwells on accuracy and convergence order of the 2D hybrid method, which will help for 3D mesh use. In this perspective, the scattering nodes and electromagnetic fields expressions are established in the 2D general case with anisotropic materials. As a result, validation examples are presented to check the approach.

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2d FDTLM Hybridization With Modal Method

Girard¹,

Zugari²,

Raveu³

2013

PIER B

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A Fast Hybrid Wcip and FDTLM Approach to Study Inhomogeneous Circuits

Zugari¹,

Raveu²,

Girard³

et al. 2014

PIER C

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Abstract-The hybrid approach based on the coupling of the Wave Concept Iterative Procedure method and the Frequency Domain Transmission Line Matrix method is improved. The proposed method reduces the computation time by solving waves at the planar circuit interface: the volumic method is replaced by an equivalent surface condition. Thanks to this new approach, planar circuits presenting inhomogeneous dielectric substrates are studied. The proposed approach is compared to other methods on several examples.

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Analysis of Complex Electromagnetic Structures by Hybrid FDTD/WCIP Method

Gharbi¹,

Zairi²,

Trabelsi³

et al. 2012

JEMAA

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This paper proposes a hybrid full-wave analysis using Finite-Difference Time-Domain (FDTD) and Wave Concept Iterative Process (WCIP) methods, developed to analyze locally arbitrarily shaped microwave structures and Multilayer Planar structure. Using the equivalence principle, the original problem can be decomposed into two sub regions and solve each sub region separately. An interpolation scheme is proposed for communicating between the FDTD fields and WCIP wave, which will not require the effort of fitting the WCIP mesh to the FDTD cells in the interface region. This method is applied to calculate the scattering parameters of arbitrary (3-D) microwave structures. Applying FDTD to 3D discontinuity and WCIP to the remaining region preserves the advantages of both WCIP flexibility and FDTD efficiency. A comparison of the results with the FDTD staircasing data verifies the accuracy of the proposed method.

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A new computationally efficient hybrid fdtLM–WCIP method

Cited by 3 publications

References 15 publications

2d FDTLM Hybridization With Modal Method

2d FDTLM Hybridization With Modal Method

A Fast Hybrid Wcip and FDTLM Approach to Study Inhomogeneous Circuits

Analysis of Complex Electromagnetic Structures by Hybrid FDTD/WCIP Method

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