Use of three-dimensional field simulators in the synthesis of waveguide round rod bandpass filters

Yin, Shi; Vasilyeva, Tatyana I.; Pramanick, Protap

doi:10.1002/(sici)1099-047x(199811)8:6<484::aid-mmce8>3.0.co;2-i

Cited by 13 publications

(10 citation statements)

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“…We observe a sharp peak if the observation point is close to the source point, due to the singular behavior of the Green's functions. In the same figure we present the reminder (G R 0 ) defined in equation (1). We can clearly observe that the singularity is effectively eliminated, presenting a very smooth behavior.…”

Section: Effect Of the Size Of The Ppw Width In The Convergence Of Thmentioning

confidence: 79%

“…In (2), the first two terms are the same as in (1). The contribution of the first spatial image is obtained by considering the distance (d) between the source and the closest plate.…”

Section: Effect Of the Size Of The Ppw Width In The Convergence Of Thmentioning

confidence: 99%

“…This has forced the necessity for the development of CAD tools that allow the analysis and design of different kinds of inductive waveguide components in a fast and efficient way. For this purpose, several different methods have been studied, including finite element methods ( [1]), modal analysis techniques ( [2]), and Integral Equation (IE) approaches employing different formulations ( [3,4,5]). In [6], a surface IE formulation was proposed to study inductive structures including metallic and dielectric objects inside the waveguide.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of inductive multiport microwave devices employing a novel double parallel plate approach

Soler

Pereira

Gómez‐Díaz

et al. 2008

IET Microwaves, Antennas &Amp; Propagation

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In this paper we present a novel surface Integral Equation (IE) approach for analyzing inductive microwave devices with several parallel input-output ports containing inductive metallic and dielectric obstacles. The technique decomposes the main problem into three subproblems, employing different kinds of Green's functions. One of the subproblems uses the classical Green's functions of an infinite unbounded medium with the constitutive parameters of the dielectric obstacles. A novel point of the technique is the formulation of the two other subproblems with two different, 90-degrees rotated parallel plate regions. In these regions the parallel plate waveguide Green's functions are used to simplify the modeling of the excitation problem. The second novel aspect of the work is in the treatment of these Green's functions, in order to smooth their behavior, and to improve their convergence. Several numerical results are presented to demonstrate the usefulness of the algorithms proposed. Also, several results for inductive microwave devices are presented to show the practical value of the approach.

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Section: Effect Of the Size Of The Ppw Width In The Convergence Of Thmentioning

confidence: 79%

“…In (2), the first two terms are the same as in (1). The contribution of the first spatial image is obtained by considering the distance (d) between the source and the closest plate.…”

Section: Effect Of the Size Of The Ppw Width In The Convergence Of Thmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of inductive multiport microwave devices employing a novel double parallel plate approach

Soler

Pereira

Gómez‐Díaz

et al. 2008

IET Microwaves, Antennas &Amp; Propagation

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show abstract

“…The study of waveguide inductive structures, due to its practical interest in many microwave applications, has been reflected in an important number of technical papers during the last decades [1]. For the analysis of this type of structures, several approaches were derived in the past, including the finite elements method [1] and techniques based on modal analysis [2,3].…”

Section: Introductionmentioning

confidence: 99%

Analysis of Inductive Waveguide Microwave Components Using an Alternative Port Treatment and Efficient Fast Multipole

Soler¹,

Pereira²,

Pascual‐García³

et al. 2007

PIER

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Abstract-This paper presents a simple and alternative approach for the analysis of inductive waveguide microwave components. The technique uses a surface integral equation formulation, in which the contours of the waveguide walls and of the inner obstacles are all discretized using triangular basis functions. In order to avoid the relative convergence problem of other techniques based on mode matching, an alternative port treatment is used. The technique is based on the application of the extinction theorem using the spatial representation of the Green's functions in the terminal waveguides. In addition, the Fast Multipole Method is proposed in order to reduce the computational cost for large problems. Different complex structures are analyzed, including microwave bandpass filters with elliptic transfer functions, waveguide bends and T-junctions. Results show the high accuracy and versatility of the technique derived.

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“…Los tipos de obstáculos más habituales son las ventanas o iris inductivos, que además suelen presentar esquinas redondeadas por efecto de las técnicas de fabricación utilizadas. Para reducir los costes de fabricación, se pueden reemplazar las ventanas de acoplo bien por tiras metálicas insertadas en la estructura mediante delgadas placas metálicas [67] (lo que se denomina en la literatura técnica como filtros E-plane o plano E), o bien por uno o varios postes conductores cilíndricos [68].…”

Section: Filtros Inductivosunclassified

Análisis Y Diseño Optimizado De Dispositivos Pasivos De Microondas De Banda Amplia Con Guías De Sección Transversal Arbitraria

Pacheco¹

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Use of three-dimensional field simulators in the synthesis of waveguide round rod bandpass filters

Cited by 13 publications

References 0 publications

Analysis of inductive multiport microwave devices employing a novel double parallel plate approach

Analysis of inductive multiport microwave devices employing a novel double parallel plate approach

Analysis of Inductive Waveguide Microwave Components Using an Alternative Port Treatment and Efficient Fast Multipole

Análisis Y Diseño Optimizado De Dispositivos Pasivos De Microondas De Banda Amplia Con Guías De Sección Transversal Arbitraria

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