ANALYSIS OF COMPLEX DISCONTINUITIES IN CIRCULAR WAVEGUIDES USING HYBRID FINITE ELEMENT METHOD AND MULTIMODAL VARIATIONAL METHOD | Zendy

Mohamed Yahia | Zendy; Junwu Tao | Zendy; Hèdi Sakli | Zendy

Open Access

ANALYSIS OF COMPLEX DISCONTINUITIES IN CIRCULAR WAVEGUIDES USING HYBRID FINITE ELEMENT METHOD AND MULTIMODAL VARIATIONAL METHOD

Author(s) -

Mohamed Yahia,

Junwu Tao,

Hèdi Sakli

Publication year - 2015

Publication title -

progress in electromagnetics research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.245

H-Index - 33

ISSN - 1937-6480

DOI - 10.2528/pierl14120902

Subject(s) - classification of discontinuities , finite element method , hfss , cad , computer science , aperture (computer memory) , extended finite element method , mathematical analysis , structural engineering , acoustics , physics , mathematics , engineering , engineering drawing , telecommunications , microstrip antenna , antenna (radio)

We propose a hybrid multimodal variational method (MVM) and finite element method (FEM) to the analysis of complex 2D discontinuities in circular waveguides. The finite element method characterizes waves in arbitrarily shaped discontinuities, and the total response of the circuit is obtained by applying the multimodal variational method. The proposed hybrid method is successfully applied to the full-wave analysis of discontinuities with great practical interest (i.e., circular, cross-shaped, off- centered, ridged, multi-aperture irises, etc.), thus improving CPU time and memory storage against several full-wave finite element method based computer aided design (CAD) tools (i.e., HFSS High Frequency Structural Simulator).

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