Rigorous Analysis of Uniaxial Discontinuities Microwave Components Using a New Multimodal Variational Formulation

Mabika, Camille Nziengui; Okoumou-Moko, and Gilbert

doi:10.2528/pierb07102403

Cited by 11 publications

(5 citation statements)

References 11 publications

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“…The validity of the method was further confirmed by comparing our results for various discontinuities (bend, filters) with those from HFSS as well as from other published sources [10]- [13].…”

Section: Discussionsupporting

confidence: 61%

Modelling and Characterization of Planar Components

Ourabia

2014

AMR

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An approach for modeling and numerical simulation of planar components using the edge line concept is developed. With this method, we develop an efficient modeling technique for microstrip discontinuities. The structure presents an arbitrary number of ports, each one with different orientation and dimensions. This article presents a hybrid method based on multimode contour integral and mode matching techniques. The process is based on segmentation and dividing the structure into key building blocks. We use the multimode contour integral method to analyze the blocks including irregular shape discontinuities. Finally, the multimode scattering matrix of the whole structure can be found by cascading the blocks. Therefore, the new method is suitable for analysis of a wide range of waveguide problems. Therefore the present approach can be applied easily to the analysis of any multiport junctions and cascade blocks. The accuracy of the method is validated comparing with results for several complex problems found in the literature. CPU times are also included showing the efficiency of the new method proposed.

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Section: Discussionsupporting

confidence: 61%

Modelling and Characterization of Planar Components

Ourabia

2014

AMR

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“…Another advantage of this method is that the edge line concept for arbitrary shape junctions operates with real parameters circuits. The validity of the method was further confirmed by comparing our results for various discontinuities (bend, filters) with those from HFSS as well as from other published sources [10]- [13].…”

Section: Discussionsupporting

confidence: 59%

Modeling and Simulation of Microwave Circuits

Ourabia

2013

AMR

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A new and efficient method is presented for the analysis of arbitrarily shaped discontinuities. The technique obtains closed form expressions for the equivalent circuits which are used to model these discontinuities. Then it would be easy to handle and to characterize complicated structures like T and Y junctions, truncated junctions, arbitrarily shaped junctions, cascading junctions and more generally planar multiport junctions. Another advantage of this method is that the edge line concept for arbitrary shape junctions operates with real parameters circuits. The validity of the method was further confirmed by comparing our results for various discontinuities (bend, filters) with those from HFSS as well as from other published sources.

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“…Examples include waveguide discontinuities [25], Y-branch couplers, micro-ring cavities with dimension less than 50 micrometers, deep etched periodic grating structures (too difficult for CMT, coupledmode theory), corrugated waveguides [26] and other novel devices require bi-directional full wave analysis.…”

Section: Linearly Tapered Waveguidementioning

confidence: 99%

Field Analysis of Dielectric Waveguide Devices Based on Coupled Transverse-Mode Integral Equation-Numerical Investigation

Chang

Wu²,

Lu³

et al. 2009

PIER

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Abstract-This is a numerical investigation of a recently proposed formulation called coupled transverse-mode integral equation (CTMIE) for analyzing EM field properties in general 2-D dielectric waveguide devices. The device is first approximated by stack of piece-wise 1-D horizontally layered structures. Transverse field components on the interface between waveguide slices are unknown functions, which are governed by a coupled integral equation. When unknowns are expanded as a linear combination of given functions, CTMIE is converted to a coupled block matrix equation. We study three waveguide devices, in detail, to understand the relation between modeling parameters and accuracy and convergent rate of the solutions. Examples include a step waveguide junction, a multi-mode interferometer power cross coupler and a linearly tapered waveguide. All results are verified with independent calculations using other proven methods.

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Rigorous Analysis of Uniaxial Discontinuities Microwave Components Using a New Multimodal Variational Formulation

Cited by 11 publications

References 11 publications

Modelling and Characterization of Planar Components

Modelling and Characterization of Planar Components

Modeling and Simulation of Microwave Circuits

Field Analysis of Dielectric Waveguide Devices Based on Coupled Transverse-Mode Integral Equation-Numerical Investigation

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