Multiport analysis of arbitrary circular-rod insets in rectangular waveguide by the generalized admittance matrix

Author

Gentili, G.G.

Author_Institution

Centro Studi per le Telecomunicazioni Spaziali, Politecnico di Milano, Italy

Volume

49

Issue

8

fYear

2001

Firstpage

1438

Lastpage

1442

Abstract

An original generalized-admittance-matrix (GAM) approach for the analysis of multiport junctions in rectangular waveguide having an arbitrary circular-rod inset is presented in this paper. The method is based on an efficient computation of the GAM for the blocks that compose the structure. The efficiency is due to the fact that, for each block, the full three-dimensional GAM is obtained by solving a set of uncoupled two-dimensional problems. The accuracy and efficiency of the method developed have been assessed by comparing the results obtained with some measured data and with data obtained by the finite-element method.

Keywords

multiport networks; rectangular waveguides; waveguide junctions; waveguide theory; circular rod inset; generalized admittance matrix; multiport junction; rectangular waveguide; Admittance; Couplings; Fasteners; Finite element methods; Matrix decomposition; Rectangular waveguides; Resonator filters; Telecommunications; Transmission line matrix methods; Waveguide junctions;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.939924

Filename

939924