Reduced-order optimized mode-matching CAD of microwave waveguide components

The optimum designs of microwave devices require highly accurate and efficient computer-aided-design systems. This paper describes a novel reduced-order model for the mode-matching technique, which is derived from the application of the Krylov subspace concept and of the singular-value-decomposition...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 2004-01, Vol.52 (1), p.311-318
Main Authors: Peverini, O.A., Tascone, R., Baralis, M., Virone, G., Trinchero, D., Orta, R.
Format: Article
Language:English
Subjects:
Apertures
Design automation
Electromagnetic waveguides
Frequency
Microwave devices
Microwave theory and techniques
Radar antennas
Reduced order systems
Singular value decomposition
Waveguide components
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Summary:The optimum designs of microwave devices require highly accurate and efficient computer-aided-design systems. This paper describes a novel reduced-order model for the mode-matching technique, which is derived from the application of the Krylov subspace concept and of the singular-value-decomposition algorithm to the coupled integral equations solved by the mode-matching technique. The design example of a high performance 12-cavity Ka-band ridged-filter confirms the accuracy and the numerical efficiency of the proposed model. In particular, the presented method also enables to accurately control the metal losses of the devices.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2003.820893