Modal S-matrix method for the optimum design of inductively direct-coupled cavity filters

Arndt, F.; Børnemann, Jens; Heckmann, Dominik; Piontek, C.; Semmerow, H.; Schueler, H.

doi:10.1049/ip-h-2.1986.0063

Cited by 28 publications

(8 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first step in the procedure is to add and subtract to (10) the quasi-static term of the spectraldomain quantity as follows: (11) where is the quasi-static part of , and we have defined (12) To obtain the quasi-static part, the case of modes infinitely below the cutoff has to be considered. The equivalent network for the quasi-static part is composed only of two semi-infinite transmission-line sections, above and below the exciting generator, i.e., the source point.…”

Section: Efficient Evaluation Of Mom Matrixmentioning

confidence: 99%

An Integral-equation technique for solving thick irises in rectangular waveguides

Stevanović

Crespo-Valero

Mosig

2006

IEEE Trans. Microwave Theory Techn.

View full text Add to dashboard Cite

Abstract-This paper presents an efficient integral-equation (IE)technique for analysis of thick irises inside multilayered rectangular waveguides. The IEs remain the same as in the case of zerothickness iris and the thickness is accounted for only as a correction term in the IE kernel. This technique halves the number of unknowns on the iris, thus leading to computational effort and simulation times comparable to the zero-thickness case. In this paper, two efficient ways for computing the correction term are introduced and the accuracy of the approach is discussed on several waveguide structures and filters.

show abstract

Section: Efficient Evaluation Of Mom Matrixmentioning

confidence: 99%

An Integral-equation technique for solving thick irises in rectangular waveguides

Stevanović

Crespo-Valero

Mosig

2006

IEEE Trans. Microwave Theory Techn.

View full text Add to dashboard Cite

show abstract

“…in Refs. , the characteristics of the two novel Y‐junction diplexer structures are analyzed, while an efficient diplexer design method is also presented. Applying this approach, two diplexers realized as Chebyshev band‐pass post filters are designed as shown in Figure .…”

Section: Introductionmentioning

confidence: 99%

Substrate-integrated waveguide diplexers with improved Y-junctions

Zhao

Lim

2016

Microw. Opt. Technol. Lett.

View full text Add to dashboard Cite

Y‐junctions are often adopted to design diplexers since their characteristics can conveniently satisfy the constraints for optimum performance of diplexer design. In order to decrease the size of the Y‐junction diplexer, the two branches of the junction can be bent to yield parallel outputs. However, this parallel configuration can degrade the characteristic of the Y‐junction. In this letter, two improved novel configurations of Y‐junction diplexers are introduced, analyzed with an efficient mode‐matching based approach and optimized for best performance. For illustration, the method is applied to two diplexers in substrate‐integrated waveguide technology realized using band‐pass post filters. For each diplexer, the fractional bandwidths of operation for the up and down channels are 2.70% and 2.44% at 7.4 GHz and 8.2 GHz respectively. The viability of the design approach is validated by full‐wave finite‐element simulations using Ansys HFSS and measurements on the two fabricated diplexers. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1384–1388, 2016

show abstract

“…In literature there are known several methods which allow one to analyze waveguide filters or resonators containing objects with certain geometry [8][9][10][11]. In [8] the modal S-matrix method was applied to the analysis of waveguide filters containing rectangular irises or posts. In [9] scattering parameters of waveguide filters containing elliptical objects were determined using modified mode matching technique.…”

Section: Introductionmentioning

confidence: 99%

Application of a hybrid finite difference-mode matching method to the analysis of circular cavities loaded with cylindrical metallic objects

Kusiek¹,

Mazur²

2010

AEU - International Journal of Electronics and Communications

View full text Add to dashboard Cite

Modal S-matrix method for the optimum design of inductively direct-coupled cavity filters

Cited by 28 publications

References 1 publication

An Integral-equation technique for solving thick irises in rectangular waveguides

An Integral-equation technique for solving thick irises in rectangular waveguides

Substrate-integrated waveguide diplexers with improved Y-junctions

Application of a hybrid finite difference-mode matching method to the analysis of circular cavities loaded with cylindrical metallic objects

Contact Info

Product

Resources

About