Efficient FDTD/matrix-pencil method for the full-wave scattering parameter analysis of waveguiding structures

Ritter, J.; Amdt, Fritz

doi:10.1109/22.554577

Cited by 55 publications

(24 citation statements)

References 24 publications

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“…The EBFEM was implemented with C program language; then the scattered parameters of unmatched double tee was calculated to testify our program, numerical results obtained by our program agree well with the results in [12], see Fig. 5.…”

Section: Numerical Results Of the Designed Dlwpssupporting

confidence: 59%

A Compact H-Plane Magic Tee Designed at W Band

Wang¹,

Dou²,

Mei³

2008

PIER B

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Abstract-Magic tee is a widely used component in microwave systems; the four arms of a conventional magic tee direct at four different directions, which occupy much space and give inconveniences to the assemblage of a system. In this paper, a waveguide narrow-wall slot directional coupler and an E-plane dielectric loaded waveguide phase shifter are used to make up of a magic tee with four arms in the same H-plane. The narrow-wall slot directional coupler is analyzed with mode matching method and optimized with simulated annealing method, and the dielectric loaded waveguide phase shifter is designed with edge based finite element method. Numerical results of the magic tee are presented, which show that the performance of the designed magic tee is good.

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Section: Numerical Results Of the Designed Dlwpssupporting

confidence: 59%

A Compact H-Plane Magic Tee Designed at W Band

Wang¹,

Dou²,

Mei³

2008

PIER B

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“…Thus, for example, the total time-dependent tangential electric field at position can be expressed as [12] (16) where is the time-dependent amplitude of mode and is the mode-template vector at position containing the tangential-field distribution of mode . In a port plane, the position corresponds to either a center of a triangular face [see Fig.…”

Section: Orthogonality Of Modesmentioning

confidence: 99%

Field-based scattering-matrix extraction scheme for the FVTD method exploiting a flux-splitting algorithm

Baumann

Vahldieck

2005

IEEE Trans. Microwave Theory Techn.

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Abstract-This paper introduces a novel field-based scheme for the extraction of a generalized-scattering matrix. A flux-splitting (FS) algorithm that separates the total electromagnetic field into an incident and a reflected part is used for a new definition of power waves. This flux-separation scheme, based on a plane-wave approach of the split waves, originates from finite-volume techniques. However, it can be applied locally in any numerical scheme that uses a volume discretization. To yield correct -parameters, the FS matrix needs to be adapted through introduction of modified wave velocities to match the plane-wave condition. The introduced extraction scheme is applied to the finite-volume time-domain method and compared successfully to reference solutions for TEM and non-TEM structures, both with homogeneous and inhomogeneous cross sections. Index Terms-Finite volume time domain (FVTD), flux splitting (FS), scattering parameters.

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“…Sieverding and Arndt analyzed the magic tee with the full wave modal S-matrix by mode-matching method in 1993 [1]. Later Ritter and Arnd presented a new method, named "a combined finitedifference time-domain/matrix-pencil method", to analyze and design magic tee [2]. In 2002, Shen et al introduced another method, a hybrid finite-element/modal expansion method, for the rigorous analysis and Schematic diagram of magic tee in Ref.…”

Section: Introductionmentioning

confidence: 99%

“…And in ref. [2] and [3], in order to get good performance, matching metal steps or metal plates are placed in port 4 of waveguide magic tee besides the matching element in magic tee junction (shown in Fig. 1 and Fig.…”

Section: Introductionmentioning

confidence: 99%

A Rigorous Analysis and Experimental Researches of Waveguide Magic Tee at W Band

Wu¹,

Dou²

2006

PIER

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Abstract-A waveguide magic tee at W band is analyzed exactly and developed. The analysis approach is a combination of the mode expansion method and finite element method, which is based on the weak form of Helmholtz equation. Mode expansion instead of PML (Perfectly Matched Layers) is used to truncate the computing space of finite element. A magic tee at W band (75∼110 GHz) with the structure, which is easy for manufacture, is developed. Calculated results are presented and compared to those in experiments. Agreement has been observed. A sensitivity analysis is carried out, which shows the influence of the tolerance of manufacture on the performance of the magic tee. And the power carrying capacity of the designed magic tee is also evaluated.

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Efficient FDTD/matrix-pencil method for the full-wave scattering parameter analysis of waveguiding structures

Cited by 55 publications

References 24 publications

A Compact H-Plane Magic Tee Designed at W Band

A Compact H-Plane Magic Tee Designed at W Band

Field-based scattering-matrix extraction scheme for the FVTD method exploiting a flux-splitting algorithm

A Rigorous Analysis and Experimental Researches of Waveguide Magic Tee at W Band

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