Rigorous mode-matching method for the modal analysis of the T-junction circular to sidecoupled rectangular waveguide

Krauß, Peter; Arndt, F.

doi:10.1109/mwsym.1995.406222

Cited by 12 publications

(11 citation statements)

References 8 publications

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“…The excitation coefficients can be eliminated by using (3), which yields (5) with (6) The desired full-wave scattering matrix of the general -port waveguide junction is then given by (7) with the identity matrix . …”

Section: B Boundary Contour Mode-matching Methodsmentioning

confidence: 99%

“…It is to develop and utilize EM building blocks which are fast enough to allow the direct application of matured optimizers and CAD tools, and also for waveguide components of more general shape. For components composed of rectangular and circular waveguide structures, efficient mode-matching building blocks have already been developed in the past (e.g., [1]- [6]). As has been successfully demonstrated, these allow the rigorous and fast CAD of the large class of waveguide components, which are compatible with the Cartesian or cylindrical coordinate system, such as transformers, filters, multiplexers, couplers, phase shifters, polarizers etc., [1]- [18].…”

Section: Introductionmentioning

confidence: 99%

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Automated design of waveguide components using hybrid mode-matching/numerical EM building-blocks in optimization-oriented CAD frameworks-state of the art and recent advances

Arndt

Beyer

Reiter

et al. 1997

IEEE Trans. Microwave Theory Techn.

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119

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Fast hybrid mode-matching/boundary-contour (MM/BC) and mode-matching/finite-element (MM/FE) waveguide building blocks are described for the optimization-oriented use in powerful circuit computer-aided design (CAD) tools and the automated design of waveguide components. The efficient electromagnetic (EM) CAD technique allows the accurate design of a comprehensive class of rectangular and circular waveguide components including realistic structures of higher complexity. The efficiency and flexibility of the hybrid CAD method is demonstrated at advanced EM design examples, such as broad-band circular-to-rectangular waveguide transitions including octagonal cross sections, waveguide resonator filters with rounded corners, optimum-shaped bends, dual-mode filterswith coupling sections without tuning screws, ridged waveguide filters with rounded corners, and multiplexers. The designed components are directly amenable to cost-efficient fabrication techniques like computer-controlled milling methods. The theory is verified by available measurements.

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Section: B Boundary Contour Mode-matching Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Automated design of waveguide components using hybrid mode-matching/numerical EM building-blocks in optimization-oriented CAD frameworks-state of the art and recent advances

Arndt

Beyer

Reiter

et al. 1997

IEEE Trans. Microwave Theory Techn.

Self Cite

119

View full text Add to dashboard Cite

show abstract

“…The choice made in this work is particularly convenient and it consists in a suitable set of rectangular waveguide mode functions. This is a major difference with respect to [4]. The final GAM of the transition region is then found after simple but lengthy matrix algebra and is omitted.…”

Section: B Gam Of the Transition Regionmentioning

confidence: 99%

“…That approach was convenient since the purpose of those works was to develop a software tool for an efficient analysis TE -mode cylindrical cavity filters. A rigorous analysis which includes the curvature effects can be found in [4], where a mode-matching technique in conjunction with BCMM [5] was used to analyze the structure.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the X-junction between two rectangular waveguides and a circular waveguide

Gentili¹,

Melloni

1997

IEEE Microw. Guid. Wave Lett.

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The paper describes a method for the analysis of the four-port junction (X-junction) between two rectangular waveguides and a circular waveguide. The method is based on the computation by an efficient technique of the generalized admittance matrix (GAM) of the structure (conveniently divided into subblocks) with no restrictions on the geometrical dimensions. a typical analysis with about 100 modes in the overall structures requires 1-4 s per frequency point on a typical medium-power workstation.

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Novel modal analysis of a circular-to-rectangular waveguide T-junction and its application to design of circular waveguide dual-mode filters

Sivadas

2002

IEEE Trans. Microwave Theory Techn.

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This paper describes a novel modal analysis of a circular-to-rectangular waveguide T-junction and its application to the design of circular waveguide dual-mode filters with a sidewall coupling iris. The analysis is based on the newly developed finite plane-wave series-expansion technique and the concept of the extended boundary condition. The combination of the two concepts greatly facilitates the modal analysis of complex boundary value problems and eliminates the numerical integration. The proposed modal analysis has been verified both by experiments and commercial software for a wide range of parameters. Design examples of I/O structures for a set of channel filters demonstrate the great value of the new modal analysis scheme in practical applications.

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Rigorous mode-matching method for the modal analysis of the T-junction circular to sidecoupled rectangular waveguide

Cited by 12 publications

References 8 publications

Automated design of waveguide components using hybrid mode-matching/numerical EM building-blocks in optimization-oriented CAD frameworks-state of the art and recent advances

Automated design of waveguide components using hybrid mode-matching/numerical EM building-blocks in optimization-oriented CAD frameworks-state of the art and recent advances

Analysis of the X-junction between two rectangular waveguides and a circular waveguide

Novel modal analysis of a circular-to-rectangular waveguide T-junction and its application to design of circular waveguide dual-mode filters

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