Analysis of an N-way radial cavity divider with a coaxial central port and waveguide output ports

A field matching technique is used to analyze an N-way divider which includes a radial cavity with a coaxial central port and H-plane coupled rectangular waveguide output ports. Dielectric coated and disc ended probes at the central port are considered. The analysis is divided into two parts. Part o...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 1996-11, Vol.44 (11), p.2010-2016
Main Authors: Bialkowski, M.E., Waris, V.P.
Format: Article
Language:English
Subjects:
Algorithm design and analysis
Coaxial components
Couplings
Dielectrics
Finite element methods
Probes
Rectangular waveguides
Scattering parameters
Testing
Waveguide components
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Summary:A field matching technique is used to analyze an N-way divider which includes a radial cavity with a coaxial central port and H-plane coupled rectangular waveguide output ports. Dielectric coated and disc ended probes at the central port are considered. The analysis is divided into two parts. Part one is associated with the modeling of the central port and part two is concerned with the modeling of the waveguide peripheral ports. The analysis is simplified by assuming that the interaction between the central port and the peripheral ports is by means of axially symmetric radial waves which are uniform with cavity's height. Based on this analysis, algorithms are developed for calculating the scattering parameters of this structure using a PC. These algorithms show good agreement when tested against a finite element package (HFSS) and against measurements.
ISSN:0018-9480
1557-9670
DOI:10.1109/22.543956