Modeling Rectangular Waveguide Junctions by the Eigenfunction Method

A method to determine the impedance and admittance matrices of a certain class of rectangular waveguide junctions is presented. First, general matrices are obtained relating all of the modes that may exist in the waveguides connected to the ports, The expressions for the matrix entries are given in...

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Bibliographic Details
Published inIEEE transactions on microwave theory and techniques Vol. 25; no. 8; pp. 688 - 694
Main Author Nalbandoglu, A.H.
Format Journal Article
LanguageEnglish
Published IEEE 01.08.1977
Subjects
Eigenvalues and eigenfunctions
Hybrid junctions
Joining processes
Mathematics
Permeability
Permittivity
Rectangular waveguides
Transmission line matrix methods
Waveguide components
Waveguide junctions
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Summary:A method to determine the impedance and admittance matrices of a certain class of rectangular waveguide junctions is presented. First, general matrices are obtained relating all of the modes that may exist in the waveguides connected to the ports, The expressions for the matrix entries are given in terms of the eigenfunctions of the volume occupied by the junction and the fields at the ports. Second, to obtain a relationship between the propagating modes of the connecting waveguides, a numerical iterative procedure is developed to eliminate the evanescent modes from the general matrices. Practical applications have shown that the results agree well with the previous ones, and the method can readily be used to analyze different types of junctions in any required frequency range.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.1977.1129187